Airport gate intelligence · SAN
How many gates does San Diego Airport (SAN) have?
San Diego Airport (SAN) has 51 gates, with about 317 airline departures a day. Southwest has the most (15), followed by Alaska (10).
Southwest flies 39% of the 47,279 seats leaving SAN each day. Southwest has 50% more gates and 58% more seats than Alaska. 7 gates are common use, shared by several airlines.
For travelers
Flying from SAN? GateBite, Chockwise’s site for travelers, shows which terminal or concourse each gate is in and what there is to eat and drink beside it.
Gates, seats and flights by airline at SAN
| Airline | Gates held | Departures a day | Seats out a day | Share of seats | Seats per departure | Regional jets | Median turn | Tows a week |
|---|---|---|---|---|---|---|---|---|
| Southwest | 15 | 113 | 18,296 | 39% | 164 | 0% | 56 min | 56 |
| Alaska | 10 | 96 | 11,568 | 24% | 121 | 54% | 53 min | 27 |
| United | 5 | 32 | 5,316 | 11% | 178 | 0% | 70 min | 15 |
| Delta | 5 | 31 | 5,085 | 11% | 169 | 15% | 68 min | 8 |
| American | 5 | 26 | 4,670 | 10% | 189 | 0% | 63 min | 10 |
| Frontier | 1 | 5 | 851 | 2% | 201 | 0% | 53 min | 1 |
| JetBlue | 1 | 4 | 846 | 2% | 200 | 0% | 87 min | 1 |
| Air Canada | 1 | 2 | 214 | 0% | 121 | 21% | 50 min | 0 |
| Common use (shared) | 7 | |||||||
Average of 13 full days, Sep 25 to Oct 21, 2026. Gates held = the airline flying the gate most (regional partners count as their brand); 1 gate saw few or no flights (not in use or under repair). Seats are capacity, from each airline’s seat map per aircraft type; 13% of flights have no seat count yet.
On-time departures by airline at SAN
59% of departures left the gate on time (less than 15 minutes after their scheduled time). Airlines with 10+ departures a day.
| Airline | Departures a day | On time | 15+ min late |
|---|---|---|---|
| Delta | 31 | 73% | 27% |
| Alaska | 96 | 66% | 34% |
| United | 32 | 65% | 35% |
| American | 26 | 57% | 43% |
| Southwest | 113 | 47% | 53% |
On time = left the gate less than 15 minutes after its scheduled time. Average of 13 full days.
What size aircraft SAN’s gates handle
Gates by the largest aircraft seen there at least twice. A gate that takes a wide-body also takes anything smaller.
Airlines at SAN: terminals, gates and nonstop routes
Other airlines
Seen on only one of the full days collected (charters and occasional flights): 2I (10 flights); GlobalX (2 flights); Allegiant (2 flights); Air Europa (2 flights); XE (1 flight); Contour (1 flight).
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SAN gate questions
How many gates does San Diego Airport (SAN) have?
San Diego Airport (SAN) has 51 gates, with about 317 airline departures a day. Southwest has the most (15), followed by Alaska (10).
Which airline has the most gates at San Diego Airport (SAN)?
Southwest, with 15 of the 51 gates at SAN (the airline flying each gate most; regional partners count as their brand).
How many flights a day leave San Diego Airport (SAN)?
About 317 airline departures a day (Sep 25 to Oct 21, 2026).
Which terminal is Southwest in at SAN?
Southwest flies from Terminal 1 at San Diego Airport (SAN).
How many gates does Southwest have at SAN?
15 gates, with about 113 departures and 18,296 seats a day.
How many gates does Alaska have at SAN?
10 gates, with about 96 departures and 11,568 seats a day.
How many gates does United have at SAN?
5 gates, with about 32 departures and 5,316 seats a day.
How many seats leave SAN each day?
About 47,279 seats on 317 airline departures a day (average of 13 full days, Sep 25 to Oct 21, 2026).
What is the typical turn time at SAN?
60 minutes at the gate from arrival to departure (median of every turn measured).
Which airline leaves SAN on time most often?
Delta Air Lines: 73% of its departures left the gate less than 15 minutes after their scheduled time, against 59% for all airlines at SAN (13 full days, Sep 25 to Oct 21, 2026).
How often do flights at SAN go back to the gate after pushing back?
19 departures in 13 days probably went back to the gate before taking off (a mechanical problem, fuel, a passenger taken off), and 1 came back and changed planes.
How many aircraft tows happen at SAN?
About 116 tows a week: a plane that arrives at one gate and leaves from another was towed between them. Planes we didn't see arrive aren't counted.