Alaska · BOS
What gates does Alaska use at Boston Airport (BOS)?
Alaska uses gates B4 and B6 at Boston Airport (BOS), mainly in Terminal B’s Concourse B, with about 8 departures a day (Oct 1–21, 2026). It is the main airline at both.
Based on 269 Alaska flights at BOS, Oct 1–21, 2026 (full days)

How Alaska compares at BOS
- 8th of the 45 airlines with regular flights at BOS by departures: 2% of them (8 departures a day of about 528 a day).
- 2% of the seats leaving BOS: about 1,405 a day, 177 per departure.
- 3.4 turns a day at each gate it turns planes at, about the same as the airport’s 3.7.
- Median turn at the gate: 82 min, 11 min longer than the airport median (71 min).
- At BOS, Alaska’s 8 departures a day compare with Cape Air’s 10 and Air Canada’s 10. Alaska has 2 gates of its own; Cape Air 1; Air Canada 3.
Where Alaska flies nonstop from BOS
3 nonstop destinations. 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 |
|---|---|---|
| SeattleSEA | 4/day | Delta (3-4/day), JetBlue (1/day) |
| Portland, ORPDX | 2/day | none seen |
| San DiegoSAN | 2/day | JetBlue (2-3/day), Delta (1/day), Southwest (1/day) |
When Alaska flies at BOS
- First departure of the day usually around 7:00 am, the last around 7:10 pm.
- Busiest hour: 5:00 pm–6:00 pm, with about 2 of its arrivals and departures.
Alaska’s aircraft at BOS
| Aircraft | Departures | Seats each |
|---|---|---|
| 737 MAX 9 | 4/day | 178 |
| 737-900 | 3-4/day | 178 |
| 737-800 | 1-2/week | 159 |
| 737 MAX 8 | 1-2/week | 159 |
About 1,405 seats leave BOS on Alaska each day. Of the gates it holds, 2 have taken a narrow-body. Seats are capacity from each airline’s seat map per aircraft type, not passengers.
Alaska’s gates at BOS
Terminal B, Concourse B B4, B6
Held = the airline flying the gate most (regional partners count as their brand).
About this data
Based on 16 full days of flights at BOS, Oct 1–21, 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 BOS: questions
What terminal is Alaska at Boston Airport (BOS)?
Alaska flies from Terminal B’s Concourse B at Boston Airport (BOS).
What gates does Alaska use at BOS?
Alaska has 2 gates at BOS (the airline flying each one most): B4 and B6. It used 2 gates in all over Oct 1–21, 2026.
How many flights a day does Alaska have from BOS?
About 8 departures a day and 1,405 seats, averaged over Oct 1–21, 2026.
Where does Alaska fly nonstop from BOS?
Alaska flies nonstop to 3 cities from BOS, the most often to Seattle, Portland, OR and San Diego. Routes seen Oct 1–21, 2026.
When is Alaska’s first flight out of BOS?
Usually around 7:00 am; the last leaves around 7:10 pm.
Other airlines at BOS
All of BOS’s gates by airline · Alaska at every airport we map · Nonstop routes from BOS