Originally Posted by
AsiaTraveler
I didn't think that was possible- it's my impression that, say, east west flights are always an even number and west east flights are always an odd (or vice versa). While there are continuing flights that have the same flight number, they wouldn't begin and end at the same city.
That's true for interstates, and it's odd for N-S, even for E-W.
Flight numbers don't always follow that convention, and it's entirely possible for a flight number to be the same there and back. It often indicates an aircraft and crew turning around and heading right back, and especially happens often with the DL regional carriers... such as DL5705 MSP-PHL and DL5705 PHL-MSP. Many westbound flights on DL are odd-numbered and many eastbound flights are even-numbered.
Even mainline it happens... DL966 ATL-PHL and DL966 PHL-ATL.