The following codes are accepted in any case format (upper/lower/mixed).
Accepted economy class codes
- economy
- h
- k
- l
- m
- n
- o
- q
- s
- t
- u
- v
- x
- y
Accepted premium economy class codes
- premium
- premium economy
- e
- p
- w
Accepted business class codes
- business
- b
- c
- d
- i
- j
- z
Accepted first class codes
- first
- a
- f
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