Flights Great Falls → Seattle
GTF → SEA
How long is the flight from Great Falls to Seattle?
The flight from Great Falls (GTF) to Seattle (SEA) takes about 1h 27m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route overview
The flight route from Great Falls to Seattle operates with an average on-time performance rate of 80%, experiencing a mean delay of 14.3 minutes per flight. Over the course of a year, this route sees 89 flights using the De Havilland Canada DHC-8-400 Dash 8Q aircraft, serving a destination airport that handles approximately 52,715,181 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 Great Falls (GTF) → Seattle (SEA) route is operated by Alaska Airlines. Across 212 flights monitored in recent months, 78% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 0.94%. FlightGuard's average computed risk is 10.3/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Seattle the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Great Falls the average ATFM delay is 5.5 minutes.
Heading to Seattle: what to expect in this direction
Flying from Great Falls (GTF) to Seattle (SEA) heads west for about 822 km, a flight time of roughly 1h 27m.
Departures from Great Falls on this leg cluster in the morning window: about 73% of GTF-SEA flights take off then.
Air-traffic congestion: departing Great Falls the average ATFM delay is 5.5 min (atfm); arriving into Seattle it is 5.5 min (atfm).
Across 212 tracked GTF-SEA flights, 78% left on time with an average delay of 13 min and a 0.9% 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) | 85% | -1 min | 0.5% |
Airlines operating GTF-SEA
Airports
Frequently asked questions about GTF-SEA
The flight from Great Falls (GTF) to Seattle (SEA) takes about 1h 27m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
On the Great Falls (GTF) -> Seattle (SEA) route, on-time performance is 78% with an average delay of 13 minutes, based on 212 tracked flights.
The cancellation rate on Great Falls-Seattle is 0.94% across 212 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.
