I'm trying to put some RBD codes into ITA matrix and look for a flight in a particular RBD code. My problem is that I can't seem to find a list of RBD Code to Cabin mapping for an airline for a specific routes. If I could get a list of all the RBDs for an airline, I'm hoping to search for the RBD which is the cheapest in the cabin that I'm trying to book a seat on.

Is it possible/Would this logic work?

  • 2
    Seeing as how RBD codes are internal corporate data, why would they be made public for consumers to use?
    – user13044
    Commented Feb 28, 2017 at 4:03
  • What is RBD/CoS?
    – JonathanReez
    Commented Feb 28, 2017 at 7:50
  • @JonathanReez Requested Booking Designator, which is how the Class of Service is recorded in a reservation.
    – choster
    Commented Feb 28, 2017 at 14:57
  • Incidentally, RBD almost always corresponds to the fare class. Are you trying to find, e.g. *UP fares? Otherwise, wouldn't a search on price and cabin be sufficient?
    – choster
    Commented Feb 28, 2017 at 16:30
  • What's you ultimate goal here? You'd also have to factor what you'd be allowed to book as well.
    – DTRT
    Commented Feb 28, 2017 at 17:18

1 Answer 1


There is no publicised source for these that I am aware of. I know that in Amadeus if you perform a MasterPricer search they return the original RBDs along with the mapping to Cabin Classes for the fares that are returned, so the database can be built up this way. If you have access to a GDS then you can likely get this information out of there.

If you need this for just one Airline then I'm happy to submit them on here, if you need it general then you will need to get this out of a GDS or collect individually from each airline.

For EK/EY:

RBD AirlineCode CabinClass
A   EK  First
B   EK  Economy
C   EK  Business
D   EK  Business
E   EK  Economy
F   EK  First
G   EK  Economy
H   EK  Economy
I   EK  Business
J   EK  Business
K   EK  Economy
L   EK  Economy
M   EK  Economy
N   EK  Economy
O   EK  Business
P   EK  Business
Q   EK  Economy
R   EK  Economy
S   EK  Economy
T   EK  Economy
U   EK  Economy
V   EK  Economy
W   EK  Economy
X   EK  Economy
Y   EK  Economy
Z   EK  First
A   EY  First
B   EY  Economy
C   EY  Business
D   EY  Business
E   EY  Economy
F   EY  First
G   EY  Economy
H   EY  Economy
I   EY  Economy
J   EY  Business
K   EY  Economy
L   EY  Economy
M   EY  Economy
N   EY  Economy
O   EY  Economy
P   EY  Economy
Q   EY  Economy
R   EY  First
S   EY  Economy
T   EY  Economy
U   EY  Economy
V   EY  Economy
W   EY  Business
X   EY  Business
Y   EY  Economy
Z   EY  Business
  • Specifically looking for EY/EK.
    – edocetirwi
    Commented Feb 28, 2017 at 22:03
  • Updated now. Hope that helps
    – OCDan
    Commented Mar 2, 2017 at 16:48
  • Thank you. So is Z the cheapest Business on EK?
    – edocetirwi
    Commented Mar 2, 2017 at 18:23

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