Alaska · STL
What gates does Alaska use at St. Louis Airport (STL)?
Alaska uses gate C15 at St. Louis Airport (STL), mainly in Terminal 1’s Concourse C, with about 2-3 departures a day (Oct 3–5, 2026).
Based on 78 Alaska flights at STL, Oct 3–5, 2026 (full days)

How Alaska compares at STL
- 7th of the 9 airlines with regular flights at STL by departures: 1% of them (2-3 departures a day of about 190 a day).
- 1% of the seats leaving STL: about 403 a day, 173 per departure.
- At STL, Alaska’s 2-3 departures a day compare with Frontier’s 3 and Air Canada’s 3. Alaska has 1 gate of its own; Frontier 2; Air Canada 1.
Where Alaska flies nonstop from STL
2 nonstop destinations. Nonstop routes seen Oct 3–5, 2026; a few days of data can miss weekly or seasonal routes.
| Destination | Flights | Other airlines on this route |
|---|---|---|
| SeattleSEA | 2/day | none seen |
| Washington DullesIAD | 2-3/week | United (1-2/day) |
When Alaska flies at STL
- First departure of the day usually around 7:10 am, the last around 5:05 pm.
Alaska’s aircraft at STL
| Aircraft | Departures | Seats each |
|---|---|---|
| 737-900 | 1-2/day | 178 |
| 737-800 | 4-5/week | 159 |
| 737 MAX 9 | 2-3/week | 178 |
About 403 seats leave STL on Alaska each day. Of the gates it holds, 1 has taken a narrow-body. Seats are capacity from each airline’s seat map per aircraft type, not passengers.
Alaska’s gates at STL
Terminal 1, Concourse C C15
Held = the airline flying the gate most (regional partners count as their brand).
About this data
Based on 3 full days of flights at STL, Oct 3–5, 2026. Gates of its own are the gates where Alaska flies the most (regional partners count as their brand). Every one of its departures has a seat count.
Alaska at STL: questions
What terminal is Alaska at St. Louis Airport (STL)?
Alaska flies from Terminal 1’s Concourse C at St. Louis Airport (STL).
What gates does Alaska use at STL?
Gate C15, on every day collected (Oct 3–5, 2026).
How many flights a day does Alaska have from STL?
About 2-3 departures a day and 403 seats, averaged over Oct 3–5, 2026.
Where does Alaska fly nonstop from STL?
Alaska flies nonstop to 2 cities from STL, the most often to Seattle and Washington Dulles. Routes seen Oct 3–5, 2026.
When is Alaska’s first flight out of STL?
Usually around 7:10 am; the last leaves around 5:05 pm.
Other airlines at STL
All of STL’s gates by airline · Alaska at every airport we map · Nonstop routes from STL