Cranky on the Web: Where Flight Numbers Come From, Translating Airline-Speak, How To Fly First Class

Whoops, I forgot to post this yesterday, so a Sunday post it is…

Those four-digit flight designations? Their days may be numberedLos Angeles Times
Catharine Hamm looked into how airline flight numbers are set, and why it’s a problem. I was happy to participate in the discussion.

Don’t Be a Victim of Airline DoublespeakBottomLineInc
I spent a fair bit of time on the phone with these guys talking about airline terms that might not seem as clear as they should. The end result was what I thought to be a good summary of some things that may confuse the general traveler. (For example, a “direct” flight doesn’t mean “nonstop.”)

Why You Should Fly First Class at Least Once, and How to Afford ItNerdWallet
Lastly, this article talked about how people should try First Class (or Business, really) once, and how they can afford it. There are plenty of ways to make it happen, primarily involving credit cards and miles. (I, for example, get to fly Asiana and ANA in First Class in April thanks to a boatload of miles. And yeah, I’m kind of excited about that.)

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12 Comments on "Cranky on the Web: Where Flight Numbers Come From, Translating Airline-Speak, How To Fly First Class"

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Re the flight numbers – there are so many other practical considerations not included. It’s a wonder the reporter left them out! Many airlines now use the same number for round trip flights, so that you can have the same number into a city, and the same number leaving. Many wonder about that. Then, airlines also make every effort not to have the same flight numbers in the air going into the same airport at the same time. Imagine the confusion if QANTAS 123 is on approach to LAX at the same time as American 123? That’s when you DON’T… Read more »

The reporter was very vague about why they’re running out, if they are at all. Of course there are thousands of flights a day, but even the largest airline isn’t operating 9999 sectors, even with codeshares and technical flights.


Brett, Long before Spirit, TWA had flight 711, O-Hare to Las Vegas. It was almost always a widebody and even on some occasions, a 747. The humor and irony was never lost on anyone.


Flight 500 is special too. Alaska (Seattle), Delta (Paris), United (San Francisco), Allegiant (Vegas), and American (Phoenix) all have flight 500 going to/from Indianapolis. Somehow the controllers manage to avoid confusion.


You’ll find they are not in the air at the same time at the same airport

Flight numbers are a combination of numbers and letters prefaced by the carrier’s two letter code. So pretty much the flight numbers are just a short version of a long version of where you are going and who you are going with. You need to make sure you know how to airline-speak, flying has an alphabet known as the aviation alphabet or phonetic alphabet. They have certain words for a certain letter, just like police talk. This alphabet makes sure there is no confusion in the air because ever air piolet should know it. Flying is an amazing feeling that… Read more »

JetBlue uses flight number 1600 BOS-DCA, 1776 PHL-BOS, 777 BOS-LAS, 405 BOS-LGB and flight 1 JFK-FLL is JetBlue’s first route.


I’m sure this is a very stupid question, but… Could carriers not just create/obtain a dummy 2-letter code? For example, could Southwest reinstate/reclaim (or, in future mergers, not give away) the FL code that AirTran used to use?

There would still be some headaches operationally, but it wouldn’t be that hard to ensure that no WN and FL flights ever touch the same or nearby airports, and if they did during IRROPs it wouldn’t be the end of the world.


It drives me crazy to hear reporters/news articles discuss “direct flights” when I know that they are actually discussing “non-stop flights.” And you can tell that the traveling public makes the same mistake when they talk about how angry they were when their “direct flight” made a stop in [insert airline hub here].


It took little time for the oil companies to change their thousands of pumps to triple digits when the price of a gallon of gas exceeded $.99. I’m sure they’re already contemplating the same for when a gallon exceeds $10.00. Air carriers will expand their alpha/numerics as needed.
Necessity is the mother of invention — author unknown