DL Airline Code, Delta Air Lines
DL is the IATA airline code for Delta Air Lines, based in the United States. Its ICAO code is DAL and its radio callsign is "Delta".
What airline is DL?
DL is the IATA airline code for Delta Air Lines, based in the United States. Its ICAO code is DAL and its radio callsign is "Delta".
With 1,981 scheduled routes in the open dataset, it is one of the most connected carriers in the world, ranked number 4 by routes. You will see DL as the two-character prefix on its flight numbers, for example DL123.
| IATA airline code | DL |
|---|---|
| ICAO airline code | DAL |
| Radio callsign | Delta |
| Country | United States |
| Alliance | SkyTeam |
| Scheduled routes | 1,981 (ranked #4) |
| Most routes at | ATL Atlanta |
| Status | Active |
What is the airline code for Delta Air Lines?
The IATA airline code for Delta Air Lines is DL, and its ICAO code is DAL. The two-character IATA code prefixes the carrier's flight numbers, for example DL123.
IATA airline codes are two characters and can reuse letters over time, so a retired airline's code may later be assigned to another carrier. ICAO codes are three letters and are more stable, which is why flight plans use them.
Where the DL code comes from
DL comes straight from DeLta, a name the airline took from the Mississippi Delta region where it began as a crop-dusting operation in the 1920s. Delta was a founding member of SkyTeam in 2000, and DL remains one of the most recognised codes in US aviation.
Delta operates one of the world's three largest fleets, roughly 950 mainline aircraft as of the mid-2020s, with Atlanta as the busiest single airline hub on earth.
More on how these identifiers work in what an IATA code is and airline callsigns.
What are Delta Air Lines's hub airports?
Delta Air Lines (DL) concentrates its network on ATL (Atlanta), DTW (Detroit), MSP (Minneapolis), SLC (Salt Lake City), JFK (New York), LGA (New York), BOS (Boston), SEA (Seattle), LAX (Los Angeles).
Which airport does Delta Air Lines serve most?
Delta Air Lines (DL) appears on more routes at ATL, Atlanta, than at any other airport in the open route dataset.
The airports Delta Air Lines appears at most often in that dataset, most routes first:
Routes flown by Delta Air Lines
The busiest pairs Delta Air Lines (DL) is listed as operating in the open route dataset (codeshare-only listings excluded), with distance and typical flight time:
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
What is the ICAO code for Delta Air Lines?
Delta Air Lines uses the ICAO airline code DAL and the radio callsign "Delta". Flight plans and air traffic control use DAL, while tickets and schedules use DL.
What is the radio callsign for Delta Air Lines?
Air traffic control refers to Delta Air Lines by the radio callsign "Delta".
What country is Delta Air Lines based in?
Delta Air Lines (DL) is based in the United States.
What is the abbreviation for Delta Air Lines?
The two-character IATA abbreviation for Delta Air Lines is DL, and its three-letter ICAO code is DAL.
How many routes does Delta Air Lines fly?
The open route dataset lists 1,981 route entries for Delta Air Lines, codeshare listings included, which ranks the carrier number 4 by that count. The route table below shows only the pairs Delta Air Lines is listed as operating.
Is Delta Air Lines in an airline alliance?
Delta Air Lines (DL) is a member of SkyTeam, the global airline alliance founded in 2000. Membership means shared lounges, frequent flyer recognition and connecting networks across the member carriers.