A friend of mine recently booked a multi-city one-way ticket covering three airlines that according to ITA Matrix includes this mysterious segment:

enter image description here

Note that this is described as "First (F)", even though Jetstar is a low-cost carrier, doesn't offer more than Economy and Business, and their GDS guide doesn't recognize a fare class "F". The rest of the itinerary is also all "Economy (S)", which is a Starter Plus fare.

Any idea what kind of seat she's actually going to end up in, and how this happened?


It isn't first class, it is a mistake made by ITA Software (unusually) in mapping the booking class (F) back to the cabin class (for JQ, booking class F is economy). A similar mistake is made by a few online travel agents for Aer Lingus which also uses F for economy.

Looking at ExpertFlyer it seems that JQ uses J and D for business; Y, B, V, T, S, R, Q, P, O, N, M, E, F, L, A, Z, I, K and H for economy, in order from most to least available.

The GDS guide you've linked is from 2014, they may have amended their codes since then; or it may be that the F class is not used for publicly sold fares.

You may want to report it to ITA as a bug.

  • 4
    Of all the letters in the alphabet to choose from, they just had to use F for a mid-cost economy fare didn't they? I mean, they knew Y and B were full-fare, so they weren't ignorant of the conventions used by everyone else in the industry; they just didn't care. Jan 13 '17 at 17:41

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.