Flights Boise → Seattle
BOI → SEA
Route overview
The flight route from Boise to Seattle operates with high punctuality, boasting a 90% on-time performance rate. Over the past year, it has completed 1265 flights with an average delay of just 2.1 minutes, typically using the De Havilland Canada DHC-8-400 Dash 8Q aircraft. This route serves a destination airport that sees over 52 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Boise (BOI) → Seattle (SEA) route is operated by Alaska Airlines. Across 1668 flights monitored in recent months, 88% arrived on time (within 15 min of schedule), with an average delay of 5 minutes. The cancellation rate is 0.66%. FlightGuard's average computed risk is 19.6/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Seattle the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Boise the average ATFM delay is 1.9 minutes.
Heading to Seattle: what to expect in this direction
Flying from Boise (BOI) to Seattle (SEA) heads north-west for about 641 km, a flight time of roughly 1h 13m.
Departures from Boise on this leg cluster in the overnight window: about 48% of BOI-SEA flights take off then.
Air-traffic congestion: departing Boise the average ATFM delay is 1.9 min (airspace/NAS (BTS)); arriving into Seattle it is 2.0 min (atfm).
Across 1,668 tracked BOI-SEA flights, 88% left on time with an average delay of 5 min and a 0.7% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Alaska Airlines (AS) | 67% | 10 min | 11.9% |
Airlines operating BOI-SEA
Airports
Frequently asked questions about BOI-SEA
On the Boise (BOI) -> Seattle (SEA) route, on-time performance is 88% with an average delay of 5 minutes, based on 1668 tracked flights.
The cancellation rate on Boise-Seattle is 0.66% across 1668 monitored flights.
The route is operated by 1 airline: Alaska Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Seattle, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
