filton216
Posts: 91
Joined: Sun Apr 03, 2005 6:19 am

Airline Flight Numbers

Mon May 09, 2005 4:52 pm

Hi

I have been thinking about this for a while.

How do the airlines decide the numbers for your flight, for example BA001 etc

Thanks

filton216
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LAXintl
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RE: Airline Flight Numbers

Mon May 09, 2005 6:14 pm

Besides internal numbering schemes, and novelty numbers like BA001, IATA's basic numbering scheme recommends East and North bound flights carry even flight numbers, while West and South bound flights carry odd numbers.

Off course this is a voluntary system that not all airlines comply.
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FlyingTexan
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RE: Airline Flight Numbers

Mon May 09, 2005 6:58 pm

There’s a whole host of factors involved. American’s for example are odd eastbound, even westbound. Continental’s single and double digits are overseas and sometimes weight critical – CO 7 being IAH-NRT and CO 6 the return. Independence Air reserves 3 digit flight numbers for the Airbus flights and 4 digit numbers for the CRJ flights. Southwest’ 60 daily flights between Love and Hobby are 1 thru 60, even for northbound, odd for southbound - with most continuing to points north or south. The 8000 range is generally a charter and other thousand ranges signify either a code share or a regional affiliate.
"Wouldn't your boss like to fly home nonstop at 4:30 on a Friday afternoon?" -Airline Exec to Congressional Staffer
 
LAXintl
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RE: Airline Flight Numbers

Mon May 09, 2005 7:33 pm

Quoting FlyingTexan (Reply 2):
American’s for example are odd eastbound, even westbound

Sorry to tell you, but its the opposite.

AA does follow IATA recommended numbering system for the most part.

LAX-JFK AA10, AA2, AA34, AA40 etc
JFK-LAX AA1, AA3, AA19, AA33 etc,

Some flights that are part of Latin America service however do operate North / South numbering system on continuing domestic legs which might not comply fully with the East/West numbering system.
From the desert to the sea, to all of Southern California
 
FlyingTexan
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RE: Airline Flight Numbers

Mon May 09, 2005 7:35 pm

Quoting Laxintl (Reply 3):
Sorry to tell you, but its the opposite.

The other way around! I should know that - I worked for AMR for 2 years.
"Wouldn't your boss like to fly home nonstop at 4:30 on a Friday afternoon?" -Airline Exec to Congressional Staffer
 
filton216
Posts: 91
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RE: Airline Flight Numbers

Mon May 09, 2005 7:51 pm

Thanks. It doesnt have anything to do with the flight route aswell or this that just me?
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JGPH1A
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RE: Airline Flight Numbers

Mon May 09, 2005 8:03 pm

I think the IATA guidelines on flight numbering are just that - guidelines. They aren't enforced. Some US carriers (e.g. DL) are running out of numbers fast, and so are constrained to use whatever number is available for a new flight.
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geoffm
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RE: Airline Flight Numbers

Mon May 09, 2005 8:10 pm

Quoting Filton216 (Reply 5):
It doesnt have anything to do with the flight route aswell or this that just me?

Depends on the airline. Some reserve ranges for particular routes, eg 001 to 099 might be London-USA flights, 100-199 London-Asia, 200-299 London-Russia, etc.

CO has a weird numbering scheme but I can't remember what it is.

But with virtually all airlines, the lower the number, the more prestiguous the flight - BA001 and AF001 being Concorde, for example. Very high numbers, like 4000+ are often codeshares, with 9000+ sometimes being ferry/charter/special flights.

Quoting FlyingTexan (Reply 2):
Continental�s single and double digits are overseas

Not necessarily. CO1952 is EWR-LIM, for example.

Geoff M.
 
filton216
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RE: Airline Flight Numbers

Mon May 09, 2005 8:18 pm

Thanks. Very useful. I just was wondering because I was going on holiday in July!
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commavia
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RE: Airline Flight Numbers

Mon May 09, 2005 9:32 pm

At AA, pretty much AA1-200 and AA900-999 never really change. These are almost all international or transcon routes to major destinations and stay pretty consistent all the time.

Pretty much everything else, especially from 1000 up, change with just about every schedule change. Also, generally speaking, even numbered flights operate east and north, and odd numbered flights west and south.
 
FlyingTexan
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RE: Airline Flight Numbers

Tue May 10, 2005 12:42 am

Quoting Geoffm (Reply 7):
CO has a weird numbering scheme but I can't remember what it is.

Something having to do with the last two digits of a flight number. IAH-MSY end in 23. The reverse end in 22.

IAH-SAT end in 79. Reverse is 78.

Granted, there are many exceptions. I don’t have any expertise on this, just see a pattern.

Quoting Geoffm (Reply 7):
Not necessarily. CO1952 is EWR-LIM, for example.

Instead of phrasing it ‘overseas’ I should have stated Europe and Asia.
"Wouldn't your boss like to fly home nonstop at 4:30 on a Friday afternoon?" -Airline Exec to Congressional Staffer
 
alb222
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RE: Airline Flight Numbers

Tue May 10, 2005 12:52 am

With all of the codesharing, flight numbers are running scarce. You can find many instances where the routing of a flight becomes JFK-FLL-JFK for instance in order to give that roundtrip the same flight number.