Boise to Seattle (BOI–SEA) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
BOI–SEA is served by 2 airlines with nonstop service. Alaska Airlines and Delta Air Lines lead the route. The flight covers 398 miles in approximately 0h 58m. Beyond nonstop, 48 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: DE, FI, HA, JX, KE, QR | 98 | 738, 73H, 73J, B39M, E75, E75L | 1h33-1h40 | Oneworld | DE, FI, HA, JX, KE, QR | |
| DL Delta Air Lines Also: AF, AM, KE, VS, WS | 69 | E75L, E7W | 1h40-1h54 | SkyTeam | AF, AM, KE, VS, WS |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Seattle from Boise
| Metric | BOI→SEA | SUN→SEA | LWS→SEA |
|---|---|---|---|
| Distance from BOI | – | 97 mi | 198 mi |
| Nonstop airlines | 2 | 2 | 4 |
| Weekly flights | 348 | 5 | 28 |
| Flight time | 0h 58m | 1h 58m | 1h 29m |
| Departure OTP | 78% | – | – |
Travel Essentials
BOI: MDT · SEA: PDT
When it's 6:00 PM in Boise, it's 5:00 PM in Seattle.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
BOI–SEA Quick Facts
Frequently Asked Questions
Flights from BOI to SEA
Boise Air Terminal/Gowen Field (BOI) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines and Delta Air Lines. With 348 weekly departures, this is a heavily served route.
BOI to SEA Flight Duration and Schedule
Nonstop flight time from BOI to SEA ranges from 0 hours 58 minutes to 1 hours 54 minutes. The route covers a distance of 398 miles (641 km). There are approximately 348 weekly flights outbound and 296 return, totaling 644 flights per week in both directions.
Connecting Options and Alternatives
48 one-stop connections are available, with the fastest taking approximately 3 hours via PAE. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Hailey (SUN) and Lewiston (LWS).