GSPSPOT From United States of America, joined Sep 2003, 3342 posts, RR: 1 Posted (5 years 1 month 4 days 3 hours ago) and read 3759 times:
I just got to thinking how you could tell a lot about a flight by just looking at the flight number. DL specifically - depending on the number series, you could tell what type a/c the flight was on. For example, I believe 900 flight numbers used to be on DC8s, etc.
Now, it seems flight numbers are just random, except that the highest numbers (4220, for ex.) are on "connection" carriers.. Why is it that before, when things weren't so automated, things like flight numbers seemed to make more sense than now?
ILUV767 From United States of America, joined May 2000, 3142 posts, RR: 7
Reply 1, posted (5 years 1 month 4 days 3 hours ago) and read 3746 times:
Flight numbers have some sense to them. There are ranges of numbers. International numbers, domestic, premium markets, regional carriers and so on. Within those ranges an intern probably picks then number.
Mainliner From United States of America, joined Aug 2005, 449 posts, RR: 0
Reply 3, posted (5 years 1 month 4 days ago) and read 3412 times:
I think at US, most of the trans-Atlantic flights use 700 or 800-series numbers. The CLT-HNL route used an 800 number pair (I want to say 807 and 808, but I don't remember). The LAX-CLT flights, even two years ago were always 1490, 1492, 1494 etc. and the CLT-LAX flights seemed to always be 1431, 1433, etc. Now there's a bunch of everything; often the first LAX-PHL flight in the morning uses a 700 number to make it an extension of a European flight. It seems to change each month.
I believe most airlines do use the same codes for their trans Atlantic/Pacific routes, and maybe some flagship transcon routes. I've never been able to crack WN's system though!
deltacto From United States of America, joined Mar 2009, 476 posts, RR: 0
Reply 4, posted (5 years 1 month 3 days 23 hours ago) and read 3366 times:
Quoting GSPSPOT (Thread starter): DL specifically - depending on the number series, you could tell what type a/c the flight was on. For example, I believe 900 flight numbers used to be on DC8s, etc.
Up until 1984 the range of flight numbers was based on the a/c
Here are the December 15 1983 flight itineraries:
Flights 10-15 L15's
Viscount724 From Switzerland, joined Oct 2006, 28694 posts, RR: 24
Reply 5, posted (5 years 1 month 3 days 23 hours ago) and read 3355 times:
At least most airlines still use the "eastbound/northbound - even", "westbound/southbound - odd" flight numbering convention, apart from a few like LH and LX that use even numbers for outbound flights from their hubs and odd numbers for inbound flights. That's why LH and LX westbound transatlantic flights are among the few that have even numbers westbound and odd eastbound, contrary to most other carriers.
DL's JFK-LHR (originally LGW) flights 1/2/3/4 are another exception. I think DL1 and DL3 are their only eastbound international flights with odd numbers and vice versa for DL2 and DL4.