WestJet · SEA
What gates does WestJet use at Seattle Airport (SEA)?
WestJet uses 12 gates at Seattle Airport (SEA), mainly in Concourses S and D, with about 2 departures a day (Oct 1–21, 2026). By departures: Concourses S (70% of its departures) and D (30%).
Based on 60 WestJet flights at SEA, Oct 1–21, 2026 (full days)
How WestJet compares at SEA
- 10th of the 34 airlines with regular flights at SEA by departures: under 1% of them (2 departures a day of about 587 a day).
- 0% of the seats leaving SEA: about 319 a day, 170 per departure.
- Median turn at the gate: 54 min, 21 min shorter than the airport median (75 min).
- At SEA, WestJet’s 2 departures a day compare with Lufthansa’s 2 and British Airways’ 2.
Where WestJet flies nonstop from SEA
1 nonstop destination. Nonstop routes seen Oct 1–21, 2026; a few days of data can miss weekly or seasonal routes.
| Destination | Flights | Other airlines on this route |
|---|---|---|
| CalgaryYYC | 2/day | Alaska (2/day) |
When WestJet flies at SEA
- Its departure usually leaves around 10:25 am.
WestJet’s aircraft at SEA
| Aircraft | Departures | Seats each |
|---|---|---|
| 737-800 | 1/day | 174 |
| 737 MAX 8 | 4-5/week | 174 |
| 737-700 | 1-2/week | 134 |
About 319 seats leave SEA on WestJet each day. Seats are capacity from each airline’s seat map per aircraft type, not passengers.
WestJet’s gates at SEA
Gates it shares
| Gate | Who holds it | Other airlines there |
|---|---|---|
| S1 | Common use | Delta, Alaska, Air Canada, Frontier |
| S1B | Common use | Frontier, American, Air Canada, Southwest |
| S2 | Common use | Delta, American, Alaska, Volaris |
| S3 | Common use | Delta, Alaska, United, Volaris |
| S3A | Common use | American, Southwest, Frontier, JetBlue |
| S4 | Common use | Alaska, Delta, Icelandair, United |
| S4A | Common use | Southwest, JetBlue, Frontier, American |
| D22 | Held by Alaska | Alaska, Sun Country |
| D24 | Common use | Alaska, Frontier |
| D26 | Common use | American, Alaska, Frontier, Air Canada |
| C5L1 | Common use | Frontier |
| C5L3 | Common use | Frontier |
About this data
Based on 16 full days of flights at SEA, Oct 1–21, 2026. Gates of its own are the gates where WestJet flies the most (regional partners count as their brand). Every one of its departures has a seat count.
WestJet at SEA: questions
What terminal is WestJet at Seattle Airport (SEA)?
WestJet flies from Concourses S and D at Seattle Airport (SEA). By departures: Concourses S (70% of its departures) and D (30%).
What gates does WestJet use at SEA?
S1, S1B, S2, S3, S3A, S4, S4A, D22, D24, D26 and 2 more, gates it shares with other airlines (Oct 1–21, 2026).
How many flights a day does WestJet have from SEA?
About 2 departures a day and 319 seats, averaged over Oct 1–21, 2026.
Where does WestJet fly nonstop from SEA?
WestJet flies nonstop to Calgary from SEA. Routes seen Oct 1–21, 2026.
Does WestJet share gates at SEA?
Yes: 12 gates it uses are shared or used most by another airline, e.g. gate S1 with Delta, Alaska, Air Canada and Frontier.
Other airlines at SEA
All of SEA’s gates by airline · WestJet at every airport we map · Nonstop routes from SEA