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Old Jul 17, 16, 6:48 pm
Join Date: May 2015
Location: DCA
Programs: DL PM, UA Silver, Marriott Platinum, Hilton Gold
Posts: 5,662
Originally Posted by gooselee View Post
There is an actual breakdown out there somewhere, but generally yes, there is a taxonomy.

IIRC the 5000s are all DL connection flights. 9000s are charters. Some other 4-digit range is reserved for code shares (DL marketed but operated by a partner).

In general the most "important" intl flights get lower flight numbers. I think all two-digit and many three-digit numbers are intl?
9000s can also be non-revenue ferrying flights.

From what I've seen:

GoJet: 6000s,
Endeavor: 3000s
Shuttle America: upper 2000s to lower 3000s.
Compass: 5000s
SkyWest: 4000s, 7000s
Mainline: 0001-2999

Not going to try with all the various codeshares haha. My KLM flights have generally been in the 9000s though.

Last edited by WWads; Jul 17, 16 at 6:55 pm
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