再谈订票——运价清单背后的秘密

电子客票已经在过去10年里替代了绝大多数的纸质客票。大家还有记得或还持有纸质客票的可以想一下，客票上面有时密密麻麻的一堆信息，知道是啥意思的有多少。在再谈订票前，我们先来看看一张纸质客票上面所具有的信息：

1 乘机人姓名：订座系统上“姓/名 称谓”的格式一直沿用至今。
2 航线：每张固本上都印有出发和目的地。如果城市机场名字前出现 X 字样则代表转机，O字样则代表停留
3 客票号：前三位代表了航空公司客票代码，其他的则是序列票号
4 航班号
5 订座舱位：舱位一般分为服务舱位（头等、商务、经济）订座舱位两种。每个服务舱位里按照规则不同出现一到多个订座舱位。
6 出发日期
7 出发时间
9 订座j记录代码：参阅 https://www.flyert.com/thread-396547-1-1.html
10 机票限制规则：简短的退改签规则及收费
11 票价基础代码：每个票价基础代码规定了每程的规则和约束条款，在预定和改签时提供订座和收费依据。
12 托运行李限额：计重行李以kg表示，几件行李以pc表示
其他的项目也包括了出票日期、出票公司、票价计算公式、税费、机票总价、付款方式等等。

我们不妨再回忆一下以前人工订票时的情景：你跟旅行社说明行程后，订票人员拿出一本厚厚的东西，翻来覆去，突然间看到一个亮点便在电脑上敲打一阵子，反复几次后给了你一个具体行程和报价。你确认后他又往电脑里敲打了好一阵子，然后机票打印机开始打印机票。这个过程，旅行社的人用到的信息其实就包含在了票价基础代码(Fare Basis Code)，以此可以知道订座舱位代码(Booking Fare Class)，以及订座系统中该舱位是否还有位(Inventory)，然后按照票价规则(Fare Rule) 和航线规则(Routing Rule)可以生成航线、限制规则(Endorsements and Restrictions)、票价计算公式(Fare Calculation)等。

可能你会问，我为什么需要知道这么多？我举一个简单的例子，还是谈谈便宜机票。假设你现在在马来西亚，最近需要出差去新加坡然后香港再接着到巴塞罗那，回来需要去伦敦，然后去曼谷，最后回马来西亚。你还想最好能路上顺道去看望一下在马德里的好朋友。如果你任由在线购票系统出票的话，也许这会是好几张票绑在一起销售给你，最后你可能需要花上高昂的机票价格（当然啦，公司出钱，没人在意）。但是如果你读一下英国航空公司的Fare Basis，你会惊奇的发现，你这个行程的报价只需要2500人民币+税费。更离奇的是，多付2000人民币你便可以坐上超级经济舱。这可能是性价比最高的一个行程了。而你接下来该干的就是要确保，每个航段都在规则允许的范围内，而且所需Inventory还是有位的。然后你就可以打电话给旅行社或英航人工出票。

Fare Basis 基础票价代码一般以3-8个字符为长度。除了第一位通常指向订票舱位（Booking Class）外，其他的都有航空公司自行定制。但常用的代码包括：
航空公司代码例如CA
第二位如果为E则表示为旅行团运价
数字一般指向最长停留天数，如45为45天，3M则为3个月
H/L代表旺季/淡季
W/X代表周末/周中
OW/RT 单程/往返
2位字符国家代码，如CN
CH/IN 儿童/婴儿票价（出现在最后两位）

那一个Fare Basis里面涵盖了什么呢？大概有三方面的内容，Fare Rules，Fare Routing Rules和Secondary Airlines Booking Class Table（外航订座舱位对照表）。

Fare Rule包括了以下内容:
RULE APPLICATION AND OTHER CONDITIONS 运价适用范围（这个跟简介差不多）
ELIGIBILITY 合格乘机条件（如有）
DAY/TIME 乘机指定日或时间（如有）
SEASONALITY 季节性（如有）
FLIGHT APPLICATION 适用航班
ADVANCE RESERVATIONS/TICKETING 提前订座要求
MINIMUM STAY 最短停留时间
MAXIMUM STAY 最长停留时间
STOPOVERS 中途停留规定
TRANSFERS 转机规定
COMBINATIONS  允许运价组合
BLACKOUT DATES 除外日期
SURCHARGES 附加费用
ACCOMPANIED TRAVEL 陪同旅行
TRAVEL RESTRICTIONS  旅行限制
SALES RESTRICTIONS 销售限制
PENALTIES 变更和退票费用
HIP/MILEAGE EXCEPTIONS  较高点检查
TICKET ENDORSEMENT客票的签注
CHILDREN/INFANT DISCOUNTS儿童/婴儿折扣
TOUR CONDUCTOR DISCOUNTS领队折扣
AGENT DISCOUNTS代理人折扣
OTHER DISCOUNTS其它折扣
MISCELLANEOUS PROVISIONS 其他条款
FARE BY RULE规则运价
GROUPS团队
TOURS旅游代码
VISIT ANOTHER COUNTRY适用其他国家
DEPOSITS保证金
VOLUNTARY CHANGES自愿变更
VOLUNTARY REFUNDS自愿退票
NEGOTIATED FARES协议价
这里面的内容通常可读性很强

Fare Routing Rule 则规定了航线的组成，有的规定了最长允许里程，有的直接列举了所有可行的航线

Secondary Airlines Booking Class Table 如果航线制定中需要用到其他航空公司的航段，应该使用的相应订票舱位。

以我上面的 BA为例，豪华经济舱的基础票价为TBAMS Fare。这个很好理解BA的T Class出发地为马来西亚：

RULE APPLICATION AND OTHER CONDITIONS
规定一开始就阐明本票价只适用于马来西亚和英国或欧洲间，且有订座数量限制。意思也就是说就算你在Inventory里看到T舱不是0，但你不一定能够使用这个基础票价来预定这趟航班。
   NOTE - THE FOLLOWING TEXT IS INFORMATIONAL AND NOT
   VALIDATED FOR AUTOPRICING.
   RETURN/ONE WAY SUPER SAVER PREMIUM ECONOMY FARES FROM
   MALAYSIA TO UK/EUROPE
   APPLICATION
    AREA
     THESE FARES APPLY
      FROM MALAYSIA
      TO UNITED KINGDOM
      ANDEUROPE.
    CLASS OF SERVICE
     THESE FARES APPLY FOR ECONOMY CLASS SERVICE.
    TYPES OF TRANSPORTATION
     FARES GOVERNED BY THIS RULE CAN BE USED TO CREATE
      ONE-WAY/ROUND-TRIP/CIRCLE-TRIP/OPEN-JAW JOURNEYS.
     FARES ONLY APPLY IF PURCHASED BEFORE DEPARTURE
      EXCEPT WHEN USED FOR EN-ROUTE UPGRADING FROM A
      LOWER FARE PROVIDED ALL CONDITIONS OF THESE FARES
      ARE MET.
      ---
      THE FARES ARE ROUTE - BASED ACCORDING TO THE
      SPECIFIED ROUTE MAP.
      ---
      THE OPERATING SCHEDULES OF PARTICIPATING CARRIERS
      MAY BE SUBJECT TO CHANGE WITHOUT NOTICE. SERVICES
      TO SOME DESTINATIONS MAY BE OPERATED ON A
      SEASONAL
      BASIS.
      ---
      NON AIRLINE TRANSPORTATION - THE AIR CARRIERS
      CONDITIONS OF CARRIAGE DO NOT APPLY TO ANY
      NON-AIRLINE TRAVEL INCLUDED ON THIS TICKET.
      TRAVEL
      ON DEUTSCHE BAHN INCLUDING APPLICABLE LIMITATIONS
      AND EXCLUSIONS OF LIABILITY IS GOVERNED BY
      DEUTSCHE BAHNS TERMS AND CONDITIONS AND GERMAN
      LAWS. PLEASE REFER TO WWW.BAHN.DE FOR FURTHER
      DETAILS.
      ---
      PASSENGERS PURCHASING PREMIUM ECONOMY CABIN FARES
      WILL BE ACCOMMODATED IN ECONOMY CABIN WITHOUT
      COMPENSATION ON FLIGHTS WHERE THE HIGHER CABIN IS
      NOT AVAILABLE.
      ---
    CAPACITY LIMITATIONS
     THE CARRIER SHALL LIMIT THE NUMBER OF PASSENGERS
      CARRIED ON ANY ONE FLIGHT AT FARES GOVERNED BY
      THIS RULE AND SUCH FARES WILL NOT NECESSARILY BE
      AVAILABLE ON ALL FLIGHTS. THE NUMBER OF SEATS,
      WHICH THE CARRIER SHALL MAKE AVAILABLE ON A GIVEN
      FLIGHT, WILL BE DETERMINED BY THE CARRIERS BEST
      JUDGEMENT.
ELIGIBILITY
      NO ELIGIBILITY REQUIREMENTS APPLY.
DAY/TIME
      NO DAY/TIME TRAVEL RESTRICTIONS APPLY.
SEASONALITY
      NO SEASONAL TRAVEL RESTRICTIONS APPLY.
FLIGHT APPLICATION
   THE FARE COMPONENT MUST NOT BE ON
       ONE OR MORE OF THE FOLLOWING (此处省去一切不允许乘坐的航班）
ADVANCE RESERVATIONS/TICKETING
   需要在出发前提前14天完成购票
   CONFIRMED RESERVATIONS ARE REQUIRED FOR ALL SECTORS.
   WAITLIST AND STANDBY NOT PERMITTED.
   WHEN RESERVATIONS ARE MADE AT LEAST 18 DAYS BEFORE
   DEPARTURE, TICKETING MUST BE COMPLETED WITHIN 28 DAYS
   AFTER RESERVATIONS ARE MADE OR AT LEAST 14 DAYS BEFORE
   DEPARTURE WHICHEVER IS EARLIER.
   OR - CONFIRMED RESERVATIONS ARE REQUIRED FOR ALL
        SECTORS.
        WAITLIST AND STANDBY NOT PERMITTED.
        WHEN RESERVATIONS ARE MADE AT LEAST 3 DAYS BEFORE
        DEPARTURE, TICKETING MUST BE COMPLETED WITHIN 3
        DAYS AFTER RESERVATIONS ARE MADE OR AT LEAST 3
        DAYS BEFORE DEPARTURE WHICHEVER IS EARLIER.
   OR - CONFIRMED RESERVATIONS ARE REQUIRED FOR ALL
        SECTORS.
        WAITLIST AND STANDBY NOT PERMITTED.
        TICKETING MUST BE COMPLETED WITHIN 1 DAY AFTER
        RESERVATIONS ARE MADE.
MINIMUM STAY
        NO MINIMUM STAY REQUIREMENTS APPLY. 这个运费下没有最低停留时间限制，也就是说到达目的地后可以马上离开，
MAXIMUM STAY
       整票最长总共可停留12个月
        TRAVEL FROM LAST STOPOVER MUST COMMENCE NO LATER THAN
           12 MONTHS AFTER DEPARTURE FROM FARE ORIGIN.

STOPOVERS
来回各有两个免费的中途停留点，欧洲始发段增加停留点附加费为75EUR，第三地区出发段为125USD。
   ORIGINATING EUROPE -
     UNLIMITED STOPOVERS PERMITTED ON THE OUTBOUND AND ON
     THE INBOUND FARE COMPONENTS
       LIMITED TO 2 FREE AND UNLIMITED AT EUR 75.00
       EACH.
   ORIGINATING AREA 3 -
     UNLIMITED STOPOVERS PERMITTED ON THE OUTBOUND AND ON
     THE INBOUND FARE COMPONENTS
       LIMITED TO 2 FREE AND UNLIMITED AT USD 125.00
       EACH.
TRANSFERS
   每程最多可转机5次，在欧洲可以2次，在中国除外的亚洲地区可以3次，在中国只允许1次
   5 TRANSFERS PERMITTED IN EACH DIRECTION.
         2 PERMITTED IN EUROPE IN EACH DIRECTION
         3 PERMITTED IN JAPAN / DEMOCRATIC REPUBLIC
        OF KOREA / REPUBLIC OF KOREA/SOUTHEAST ASIA/
        SOUTHWEST PACIFIC EXCEPT CHINA IN EACH
        DIRECTION.
   AND - 1 TRANSFERS PERMITTED IN EACH DIRECTION.
               1 PERMITTED IN CHINA IN EACH DIRECTION.
         FARE BREAK AND EMBEDDED SURFACE SECTORS NOT
         PERMITTED ON THE FARE COMPONENT.
COMBINATIONS
   不允许有地面航段。本运价适用于运价组合搭配包括来回、开口、环状等
   END-ON-END
     END-ON-END COMBINATIONS PERMITTED. VALIDATE ALL FARE
     COMBINATIONS.
     PROVIDED -
       COMBINATIONS ARE FOR CARRIER BA
       OR FOR CARRIER IB IN ANY RULE IN ANY TARIFF.
   END-ON-END
     END-ON-END COMBINATIONS PERMITTED WITH DOMESTIC
     FARES. VALIDATE ALL FARE COMPONENTS. SIDE TRIPS NOT
     PERMITTED.
     PROVIDED -
       COMBINATIONS ARE FOR ANY CARRIER WITH ANY RULE IN
       ANY PUBLIC TARIFF.
   OPEN JAWS
     FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
     -TO FORM SINGLE OR DOUBLE OPEN JAWS
      A MAXIMUM OF TWO INTERNATIONAL FARE COMPONENTS
      PERMITTED. MILEAGE OF THE OPEN SEGMENT MUST BE EQUAL/
      LESS THAN MILEAGE OF THE LONGEST FLOWN FARE
      COMPONENT.
     PROVIDED -
       WHEN THE OPEN SEGMENT OCCURS
       -BETWEEN AREA 2 AND AREA 3
       -WITHIN EUROPE OR WITHIN AREA 3 COMBINATIONS ARE
        WITH ANY FARE FOR CARRIER BA/IB IN ANY RULE AND
        TARIFF.
   ROUND TRIPS/CIRCLE TRIPS
     FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
     -TO FORM ROUND TRIPS
     -TO FORM CIRCLE TRIPS
      A MAXIMUM OF TWO INTERNATIONAL FARE COMPONENTS
      PERMITTED.
     PROVIDED -
       COMBINATIONS ARE WITH ANY FARE FOR CARRIER BA
       OR FOR CARRIER IB IN ANY RULE AND TARIFF.

BLACKOUT DATES
   NO BLACKOUT DATES APPLY.
SURCHARGES
  5岁以下小孩无人陪伴乘机需付附加费150USD每程。
  IF UNACCOMPANIED CHILD PSGR 5-11.
     MISCELLANEOUS/OTHER SURCHARGE OF USD 150.00 PER
     DIRECTION WILL BE ADDED TO THE APPLICABLE FARE PER
     ANY PASSENGER.
ACCOMPANIED TRAVEL
   ACCOMPANIED TRAVEL NOT REQUIRED.
TRAVEL RESTRICTIONS
   NO TRAVEL DATE RESTRICTIONS APPLY.
SALES RESTRICTIONS
  本运价不适合在中国和香港地区出票，出票航空公司必须为BA。
   FARE RULE
   TICKETS MUST BE ISSUED ON THE STOCK OF BA AND MAY NOT
   BE SOLD IN CHINA/HONG KONG SAR CHINA. EXTENSION OF
   TICKET VALIDITY IS NOT PERMITTED.
         NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING.
          EXTENSION OF TICKET VALIDITY ONLY PERMITTED IN
          THE EVENT OF ILLNESS OF PASSENGER OR CERTIFIED
          DEATH OF AN IMMEDIATE FAMILY MEMBER/ACCOMPANYING
          PASSENGER.
   GENERAL RULE - APPLY UNLESS OTHERWISE SPECIFIED
   TICKETS MAY NOT BE SOLD IN ARGENTINA/VENEZUELA.
   TICKETS MAY ONLY BE SOLD IN AREA 1/AREA 2/AREA 3.
PENALTIES
本票退票为300MYR，免费改签，No-Show费300MYR。
   CANCELLATIONS
     ANY TIME
       CHARGE MYR 300.
         NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING.
          CHARGES APPLY TO ADULT CHILD AND INFANTS WITH A
          SEAT. INFANTS WITHOUT A SEAT ARE NOT CHARGED THE
          FEE.
          --------------------------------------------------
          REFUND PERMITTED WITHIN TICKET VALIDITY
          --------------------------------------------------
          WAIVED FOR DEATH OF A PASSENGER AND PASSENGERS
          TRAVELLING COMPANIONS
          --------------------------------------------------
          WHEN COMBINING FARES THAT HAVE CANCELLATION FEES
          THE HIGHEST CANCELLATION FEE OF EACH CANCELLED
          PRICING UNIT APPLIES
          WITH THE FOLLOWING EXCEPTION
          WHEN COMBINING A REFUNDABLE FARE WITH A
          NON-REFUNDABLE FARE
          1.THE AMOUNT PAID ON THE REFUNDABLE FARE
          COMPONENT IS REFUNDED LESS ANY APPLICABLE PENALTY
          2.THE AMOUNT PAID ON THE NON-REFUNDABLE FARE
          COMPONENT WILL NOT BE REFUNDED.
          --------------------------------------------------
          ANY NON-REFUNDABLE AMOUNT FROM A PREVIOUS TICKET
          REMAINS NON-REFUNDABLE FOLLOWING A CHANGE.
          --------------------------------------------------
          FULL REFUND PERMITTED IN CASE OF REFUSAL OF A
          TRAVEL DOCUMENT TO THE PASSENGER/ACCOMPANYING
          PASSENGER AS EVIDENCED BY WRITTEN ADVICE FROM
          THE APPROPRIATE GOVERNMENT AUTHORITY.

   ANY TIME
       CHARGE MYR 300 FOR NO-SHOW.
         NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING.
          NO-SHOW FEE APPLIES IF THE BOOKING IS NOT
          CANCELLED PRIOR TO THE TICKETED DEPARTURE TIME.

   CHANGES

     ANY TIME
       CHANGES PERMITTED FOR REISSUE/REVALIDATION.
         NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING.
          A CHANGE IS A DATE/FLIGHT/ROUTING/BOOKING CODE
          CHANGE. REISSUE/REVALIDATION MUST BE MADE WITHIN
          2 DAYS OF EACH RESERVATION CHANGE.
          -------------------------------------------------
          EACH RESERVATION CHANGE MUST BE REISSUED WITHIN 2
          DAYS.
          IF REISSUE IS MADE AFTER SCHEDULED DEPARTURE TIME
          OF CHANGED FLIGHT THEN THE NO-SHOW FEE WILL
          APPLY.
          IF REISSUE IS NOT DONE WITHIN 2 DAYS OF THE
          RESERVATION CHANGE THEN THE TICKET WILL ONLY BE
          VALID FOR REFUND IF APPLICABLE.
          --------------------------------------------------
          WHEN MORE THAN ONE FARE COMPONENT IS CHANGED THE
          HIGHEST PENALTY OF ALL CHANGED FARE COMPONENTS
          WITHIN THE JOURNEY APPLIES.
          --------------------------------------------------
          --- REPRICING CONDITIONS ---
          A. BEFORE DEPARTURE OF JOURNEY WHEN THE FIRST
          FARE COMPONENT IS CHANGED THE ITINERARY MUST BE
          RE-PRICED USING CURRENT FARES IN EFFECT ON THE
          DATE THE TICKET IS REISSUED.
          B. BEFORE DEPARTURE OF JOURNEY WHEN CHANGES ARE
          TO BOOKING CODE ONLY IN THE FIRST FARE COMPONENT
          AND RESULT IN A HIGHER FARE THE ITINERARY MUST BE
          RE-PRICED USING HISTORICAL FARES IN EFFECT ON THE
          PREVIOUS TICKETING DATE OR USING CURRENT FARES IN
          EFFECT ON THE DATE THE TICKET IS REISSUED -
          WHICHEVER IS LOWER.
          C. BEFORE DEPARTURE OF JOURNEY WHEN THERE ARE NO
          CHANGES TO THE FIRST FARE COMPONENT BUT OTHER
          FARE COMPONENTS ARE CHANGED THE ITINERARY MUST BE
          RE-PRICED USING HISTORICAL FARES IN EFFECT ON THE
          PREVIOUS TICKETING DATE OR USING CURRENT FARES IN
          EFFECT ON THE DATE THE TICKET IS REISSUED-
          WHICHEVER IS LOWER.
          D. AFTER DEPARTURE OF JOURNEY THE ITINERARY MUST
          BE RE-PRICED USING HISTORICAL FARES IN EFFECT ON
          THE PREVIOUS TICKETING DATE.
          --------------------------------------------------
          NEW TICKET MAY BE LOWER - EQUAL OR HIGHER THAN
          PREVIOUS AND MUST COMPLY WITH ALL PROVISIONS OF
          THE NEW FARE BEING APPLIED.
          --------------------------------------------------
          WHEN THE ITINERARY RESULTS IN A HIGHER FARE THE
          DIFFERENCE WILL BE COLLECTED. ANY APPLICABLE
          CHANGE FEE STILL APPLIES.
          -----------------------------------------------
          WHEN THE NEW ITINERARY RESULTS IN A LOWER FARE THE
          RESIDUAL AMOUNT WILL BE REFUNDED. ANY APPLICABLE
          CHANGE FEE STILL APPLIES.
          --------------------------------------------------
          ANY NON-REFUNDABLE AMOUNT FROM A PREVIOUS TICKET
          REMAINS NON-REFUNDABLE FOLLOWING A CHANGE.
          --------------------------------------------------
          TICKET IS NOT TRANSFERABLE TO ANOTHER PERSON.

   ANY TIME
       CHARGE MYR 300 FOR NO-SHOW.
         NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING.
          WITH THE EXCEPTION OF TICKETS CHANGED IN THE US
          ANY PENALTY FEE MUST BE COLLECTED VIA AN EMD.
          REFER TO SPEEDBIRDCLUB.COM OR BATRAVELTRADE.COM
          AND YOUR GDS FOR INSTRUCTIONS.
          --------------------------------------------------
          AFTER SCHEDULED DEPARTURE TIME OF CHANGED FLIGHT
          NO SHOW FEE APPLIES FOR REISSUE/REVALIDATION.
HIP/MILEAGE EXCEPTIONS
   THE HIGHER INTERMEDIATE POINT RULE DOES NOT APPLY FOR
   CONNECTIONS.
   AND - THE HIGHER INTERMEDIATE POINT RULE DOES NOT APPLY
         FOR STOPOVERS.
TICKET ENDORSEMENTS
   THE ORIGINAL TICKET MUST BE ANNOTATED - CARRIER
   RESTRICTION APPLY - AND - PENALTY APPLIES - IN THE
   ENDORSEMENT BOX.
CHILDREN DISCOUNTS
   CNN/ACCOMPANIED CHILD PSGR 2-11 - CHARGE 75 PERCENT OF
     THE FARE.
         TICKETING CODE - BASE FARE CODE PLUS CH.
     MUST BE ACCOMPANIED ON ALL FLIGHTS IN THE SAME
       COMPARTMENT BY ADULT PSGR 12 OR OLDER.
   OR - INS/INFANT WITH A SEAT PSGR UNDER 2 - CHARGE 75
          PERCENT OF THE FARE.
              TICKETING CODE - BASE FARE CODE PLUS IN.
          MUST BE ACCOMPANIED ON ALL FLIGHTS IN THE SAME
            COMPARTMENT BY ADULT PSGR 12 OR OLDER.
   OR - 1ST INF/INFANT WITHOUT A SEAT PSGR UNDER 2 -
          CHARGE 10 PERCENT OF THE FARE.
              TICKETING CODE - BASE FARE CODE PLUS IN.
          MUST BE ACCOMPANIED ON ALL FLIGHTS IN THE SAME
            COMPARTMENT BY ADULT PSGR 12 OR OLDER.
   OR - UNN/UNACCOMPANIED CHILD PSGR UNDER 11 - CHARGE 100
          PERCENT OF THE FARE.
              TICKETING CODE - BASE FARE CODE PLUS CH.
TOUR CONDUCTOR DISCOUNTS
   NO DISCOUNTS FOR TOUR CONDUCTORS.
AGENT DISCOUNTS
   NO DISCOUNTS FOR SALE AGENTS.
ALL OTHER DISCOUNTS
   NO DISCOUNTS FOR OTHERS.
MISCELLANEOUS PROVISIONS
   THIS FARE MUST NOT BE USED AS THROUGH FARE WITH A
   DIFFERENTIAL AND/OR TO CALCULATE DIFFERENTIAL.
FARE BY RULE
   NOT APPLICABLE.
GROUPS
   NO GROUP PROVISIONS APPLY.
TOURS
   NO TOUR PROVISIONS APPLY.
VISIT ANOTHER COUNTRY
   NO VISIT ANOTHER COUNTRY PROVISIONS APPLY.
DEPOSITS
   NO DEPOSIT PROVISIONS APPLY.
VOLUNTARY CHANGES
   IN THE EVENT OF CHANGES TO TICKETED FLIGHTS
   BEFORE DEPARTURE OF JOURNEY AND WITHIN TICKET VALIDITY
   CERTAIN DOMESTIC REISSUE PROVISIONS MAY BE OVERRIDDEN
   BY THOSE OF BA INTERNATIONAL FARES
   NO CHARGE CHARGE HIGHEST FEE OF ALL CHANGED FARE
   COMPONENTS - DISCOUNTS APPLY - NO FEE FOR INFANTS W/O
   SEAT AND
     REPRICE USING FARES IN EFFECT WHEN TKT WAS ISSUED
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. NO CHANGE TO 1ST FARE COMPONENT
     2. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     3. CHANGE IS BEFORE ORIGINAL SCHEDULED FLIGHT
     4. ANY CARRIER FARES ARE USED
     5. ALL RULE AND BOOKING CODE PROVISIONS ARE MET
     6. ADV RES IS MEASURED FROM ORIGINAL TKT DATE TO
     DEPARTURE OF PRICING UNIT
     OR -
     REPRICE USING FARES IN EFFECT TODAY
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     2. CHANGE IS BEFORE ORIGINAL SCHEDULED FLIGHT
     3. ANY CARRIER FARES ARE USED
     4. ADV RES IS MEASURED FROM REISSUE DATE TO
     DEPARTURE OF PRICING UNIT
   WHEN CHANGE RESULTS IN LOWER FARE REFUND RESIDUAL THEN
   ADD-COLLECT
   ENDORSEMENT BOX - HIGHER NON-REF AMT AND NEW
   ENDORSEMENTS.
   OR -
   BEFORE DEPARTURE OF JOURNEY AND WITHIN TICKET VALIDITY
   CERTAIN DOMESTIC REISSUE PROVISIONS MAY BE OVERRIDDEN
   BY THOSE OF BA INTERNATIONAL FARES
   CHARGE MYR 300 OR HIGHEST FEE OF ALL CHANGED FARE
   COMPONENTS AND
     REPRICE USING FARES IN EFFECT WHEN TKT WAS ISSUED
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. NO CHANGE TO 1ST FARE COMPONENT
     2. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     3. CHANGE IS AFTER ORIGINAL SCHEDULED FLIGHT
     4. ANY CARRIER FARES ARE USED
     5. ALL RULE AND BOOKING CODE PROVISIONS ARE MET
     6. ADV RES IS MEASURED FROM ORIGINAL TKT DATE TO
     DEPARTURE OF PRICING UNIT
     OR -
     REPRICE USING FARES IN EFFECT TODAY
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     2. CHANGE IS AFTER ORIGINAL SCHEDULED FLIGHT
     3. ANY CARRIER FARES ARE USED
     4. ADV RES IS MEASURED FROM REISSUE DATE TO
     DEPARTURE OF PRICING UNIT
   WHEN CHANGE RESULTS IN LOWER FARE REFUND RESIDUAL THEN
   ADD-COLLECT
   ENDORSEMENT BOX - HIGHER NON-REF AMT AND NEW
   ENDORSEMENTS.
   OR -
   AFTER DEPARTURE OF JOURNEY AND WITHIN TICKET VALIDITY
   CERTAIN DOMESTIC REISSUE PROVISIONS MAY BE OVERRIDDEN
   BY THOSE OF BA INTERNATIONAL FARES
   NO CHARGE CHARGE HIGHEST FEE OF ALL CHANGED FARE
   COMPONENTS - DISCOUNTS APPLY - NO FEE FOR INFANTS W/O
   SEAT AND
     REPRICE USING FARES IN EFFECT WHEN TKT WAS ISSUED
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     2. FULLY FLOWN FARE NOT REPRICED TO FURTHER POINT
     3. CHANGE IS BEFORE ORIGINAL SCHEDULED FLIGHT
     4. ANY CARRIER FARES ARE USED
     5. ALL RULE AND BOOKING CODE PROVISIONS ARE MET
     6. ADV RES IS MEASURED FROM ORIGINAL TKT DATE TO
     DEPARTURE OF PRICING UNIT
   WHEN CHANGE RESULTS IN LOWER FARE REFUND RESIDUAL THEN
   ADD-COLLECT
   ENDORSEMENT BOX - HIGHER NON-REF AMT AND NEW
   ENDORSEMENTS.
   OR -
   AFTER DEPARTURE OF JOURNEY AND WITHIN TICKET VALIDITY
   CERTAIN DOMESTIC REISSUE PROVISIONS MAY BE OVERRIDDEN
   BY THOSE OF BA INTERNATIONAL FARES
   CHARGE MYR 300 OR HIGHEST FEE OF ALL CHANGED FARE
   COMPONENTS AND
     REPRICE USING FARES IN EFFECT WHEN TKT WAS ISSUED
     PROVIDED ALL OF THE FOLLOWING CONDITIONS ARE MET-
     1. WHEN NO INTL COUPONS REMAIN - ALL NEW TRAVEL
     MUST BE DOMESTIC
     2. FULLY FLOWN FARE NOT REPRICED TO FURTHER POINT
     3. CHANGE IS AFTER ORIGINAL SCHEDULED FLIGHT
     4. ANY CARRIER FARES ARE USED
     5. ALL RULE AND BOOKING CODE PROVISIONS ARE MET
     6. ADV RES IS MEASURED FROM ORIGINAL TKT DATE TO
     DEPARTURE OF PRICING UNIT
   WHEN CHANGE RESULTS IN LOWER FARE REFUND RESIDUAL THEN
   ADD-COLLECT
   ENDORSEMENT BOX - HIGHER NON-REF AMT AND NEW
   ENDORSEMENTS.
VOLUNTARY REFUNDS
   NO VOLUNTARY REFUNDS DATA FOUND.
NEGOTIATED FARES
   NOT APPLICABLE.

假设你的出发点为古晋，这个运价列举了所有的航线，最长为5段，如KCH-MH/BA-KUL-MH-BKK-LON-IB/BA-MAD-IB/BA-BCN，最短为3段KCH-MH-SIN-LON-BCN。TBAMS的航线规则全则如下：
    V FARE BASIS     BK    FARE   TRAVEL-TICKET AP  MINMAX  RTG
  1   TBAMS          T‡R   732.00     ----      -/‡  -/12M EH01
PASSENGER TYPE-ADT                 AUTO PRICE-YES              
FROM-KCH TO-BCN    CXR-BA    TVL-03NOV15  RULE-5737 IPREUAS/4
FARE BASIS-TBAMS             SPECIAL FARE  DIS-E   VENDOR-ATP
FARE TYPE-XEX      RT-REGULAR EXCURSION
MYR     3100  CONS  E23JUL15 D-INFINITY   FC-TBAMS  FN-     
SYSTEM DATES - CREATED 22JUL15/1813  EXPIRES INFINITY

**** CONSTRUCTED ROUTING KCH-BCN/BA      EF-23JUL15 DIS-INDEF
**ADDON ORG      KCH   EURG/4    PUBLISHED ROUTING 0002
**PUBLISHED  KUL-MPL   EURG/4    PUBLISHED ROUTING 0005
**ADDON DST      BCN   EURG/4    PUBLISHED ROUTING 0003

/WITHIN THE EASTERN HEMISPHERE/
MAP CONSTRUCTED LEFT TO RIGHT AND RIGHT TO LEFT
1. KCH-KA/CX/BA-HKG-KA/HX/CX-BJS-LON-IB/BA-BCN
2. KCH-MH-SIN-KA/CX/BA/3K-BKK-LON-IB/BA-BCN
3. KCH-MI-SIN-KA/CX/BA/3K-BKK-LON-IB/BA-BCN
4. KCH-KA/CX/BA-HKG-UL/RJ/HX/CX/BA-BKK-LON-IB/BA-BCN
5. KCH-MH/BA-KUL-MH-BKK-LON-IB/BA-BCN
6. KCH-KA/CX/BA-HKG-KA/CX/CA-CTU-LON-IB/BA-BCN
7. KCH-MH-SIN-KA/CX/BA/3K-HKG-LON-IB/BA-BCN
8. KCH-MI-SIN-KA/CX/BA/3K-HKG-LON-IB/BA-BCN
9. KCH-KA/CX/BA-HKG-LON-IB/BA-BCN
10. KCH-MH/BA-KUL-MH/CX/BA-HKG-LON-IB/BA-BCN
11. KCH-MH-SIN-MH/BA/3K-KUL-LON-IB/BA-BCN
12. KCH-MI-SIN-MH/BA/3K-KUL-LON-IB/BA-BCN
13. KCH-KA/CX/BA-HKG-MH/CX/BA-KUL-LON-IB/BA-BCN
14. KCH-MH/BA-KUL-LON-IB/BA-BCN
15. KCH-KA/CX/BA-HKG-MU/KA/HX/CX-SHA-LON-IB/BA-BCN
16. KCH-MH/BA-KUL-MH/BA/3K-SIN-LON-IB/BA-BCN
17. KCH-KA/CX/BA-HKG-KA/CX/3K-SIN-LON-IB/BA-BCN
18. KCH-MH-SIN-LON-IB/BA-BCN
19. KCH-MI-SIN-LON-IB/BA-BCN
20. KCH-KA/CX/BA-HKG-KA/HX/CX-BJS-LON-IB/BA-MAD-IB/BA-BCN
21. KCH-MH-SIN-KA/CX/BA/3K-BKK-LON-IB/BA-MAD-IB/BA-BCN
22. KCH-MI-SIN-KA/CX/BA/3K-BKK-LON-IB/BA-MAD-IB/BA-BCN
23. KCH-KA/CX/BA-HKG-UL/RJ/HX/CX/BA-BKK-LON-IB/BA-MAD-IB/BA- BCN
24. KCH-MH/BA-KUL-MH-BKK-LON-IB/BA-MAD-IB/BA-BCN
25. KCH-KA/CX/BA-HKG-KA/CX/CA-CTU-LON-IB/BA-MAD-IB/BA-BCN
26. KCH-MH-SIN-KA/CX/BA/3K-HKG-LON-IB/BA-MAD-IB/BA-BCN
27. KCH-MI-SIN-KA/CX/BA/3K-HKG-LON-IB/BA-MAD-IB/BA-BCN
28. KCH-KA/CX/BA-HKG-LON-IB/BA-MAD-IB/BA-BCN
29. KCH-MH/BA-KUL-MH/CX/BA-HKG-LON-IB/BA-MAD-IB/BA-BCN
30. KCH-MH-SIN-MH/BA/3K-KUL-LON-IB/BA-MAD-IB/BA-BCN
31. KCH-MI-SIN-MH/BA/3K-KUL-LON-IB/BA-MAD-IB/BA-BCN
32. KCH-KA/CX/BA-HKG-MH/CX/BA-KUL-LON-IB/BA-MAD-IB/BA-BCN
33. KCH-MH/BA-KUL-LON-IB/BA-MAD-IB/BA-BCN
34. KCH-KA/CX/BA-HKG-MU/KA/HX/CX-SHA-LON-IB/BA-MAD-IB/BA-BCN
35. KCH-MH/BA-KUL-MH/BA/3K-SIN-LON-IB/BA-MAD-IB/BA-BCN
36. KCH-KA/CX/BA-HKG-KA/CX/3K-SIN-LON-IB/BA-MAD-IB/BA-BCN
37. KCH-MH-SIN-LON-IB/BA-MAD-IB/BA-BCN
38. KCH-MI-SIN-LON-IB/BA-MAD-IB/BA-BCN
39. KCH-KA/CX/BA-HKG-KA/HX/CX-BJS-LON-BCN
40. KCH-MH-SIN-KA/CX/BA/3K-BKK-LON-BCN
41. KCH-MI-SIN-KA/CX/BA/3K-BKK-LON-BCN
42. KCH-KA/CX/BA-HKG-UL/RJ/HX/CX/BA-BKK-LON-BCN
43. KCH-MH/BA-KUL-MH-BKK-LON-BCN
44. KCH-KA/CX/BA-HKG-KA/CX/CA-CTU-LON-BCN
45. KCH-MH-SIN-KA/CX/BA/3K-HKG-LON-BCN
46. KCH-MI-SIN-KA/CX/BA/3K-HKG-LON-BCN
47. KCH-KA/CX/BA-HKG-LON-BCN
48. KCH-MH/BA-KUL-MH/CX/BA-HKG-LON-BCN
49. KCH-MH-SIN-MH/BA/3K-KUL-LON-BCN
50. KCH-MI-SIN-MH/BA/3K-KUL-LON-BCN
51. KCH-KA/CX/BA-HKG-MH/CX/BA-KUL-LON-BCN
52. KCH-MH/BA-KUL-LON-BCN
53. KCH-KA/CX/BA-HKG-MU/KA/HX/CX-SHA-LON-BCN
54. KCH-MH/BA-KUL-MH/BA/3K-SIN-LON-BCN
55. KCH-KA/CX/BA-HKG-KA/CX/3K-SIN-LON-BCN
56. KCH-MH-SIN-LON-BCN
57. KCH-MI-SIN-LON-BCN
这些航线规则也规定了所有航段可以乘搭航空公司，例如KCH-KA/CX/BA-HKG，指的是在KCH和HKG之间可以选乘KA/CX或BA的航班。BA的T舱在外航并不一定也是T舱，所以外航相应预定舱位对照表，就可以让你查到要使用这个基础运价，外航需要使用哪个舱位。在这个例子中，外航相应的预定舱位为MH B舱，CX E舱或者M舱。

如果你正好需要累积BA Tier Points，选择最长的行程，则可以让你顺便达到Tier Point Run的作用，单程可累积到160-200个Tier Points。而累积到的里程则是最便宜的N舱最短行程的1将近2倍。改签还不用钱。这3个好处所需的差价仅仅2千人民币（多赚的里程可以免费兑换一张新加坡-香港的来回程经济舱票）。而且在豪华经济舱中被升舱的概率比经济舱高得多，因为经常超售。只要你有他家的金银卡，优先权就在你手里了。

所以，买票前看看各个航空公司的运价清单，有时会让你有很大的收获，可以更好的让你的行程和利益最大化。那怎么才可以看到这些Fare List呢，当然你如果认识旅行社的朋友，他们是可以看得到大部分清单的。网上有两个很常用的付费软件也可以让你查到这些信息，一个是expertflyer.com，一个是KVS Tool。Expertflyer有5天的试用期，可以适时注册使用。