Originally Posted by
ExpertFlyer Voice
If I understand your question, the Booking Class search is part of the Fare Information results page. A third icon next to every fare result along side the Fare Rules and Routing Rules buttons. It's mentioned on the lower half of page 10 of the User Guide:
http://www.expertflyer.com/user-guide.pdf
If I understand the tool right, the ExpertFlyer booking class tool will help me answer two of the following three questions only:
(1) When AC fare basis ELW38RCE SFO-DUB is used to book an AC flight number on a segment within North America, what booking class is booked on the AC flight? Answer: B.
Code:
IF VIA AC E- FARES BETWEEN USA-AREA 2
E REQUIRED BETWEEN CANADA-AREA 2 FLTS
1750-1999 AND
B REQUIRED BETWEEN CANADA-USA FLTS
1750-1999
VIA AC E REQUIRED WHEN AVAILABLE E- FARES WITHIN
NORTH AMERICA
VIA AC B REQUIRED E- FARES WITHIN NORTH AMERICA
AREA 2
VIA AC B REQUIRED E- FARES WITHIN AREA 2
(2) When AC fare basis ELW38RCE SFO-DUB is used to book a UA flight number on a segment within North America, what booking class is booked on the UA flight? Answer: M.
Code:
VIA UA M REQUIRED WITHIN AREA 1
IF VIA AC E- FARES VIA PACIFIC
These are questions that ExpertFlyer can answer. But:
(3) When AC fare basis ELW38RCE SFO-DUB is used to book an AC flight number on a segment within North America, and it books into AC B, but the flight is a codeshare operated by United, what fare class does United say they received from Air Canada?
The answer (per screenshots above) is "U" — but I don't see a way to find this out without making a reservation and seeing what UA says they received from AC.
Do I misunderstand? Does Expertflyer have a tool that will answer (3)? The actual booking class on the operating carrier does make a difference for things like upgrades and mileage accrual.