Great Falls to Seattle (GTF–SEA) — Airlines, Schedules & Connections

GTF Airport Page →
511 mi airlines 14/wk
On-time Some delays Frequent delays
Flight Schedule 3 flights Verified 11h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
AS2444
AS Alaska
E75
5:06 PM
MDT
5:59 PM
MDT
1h 53m
M T W T F S S
Prices
HA4845
HA Hawaiian
E75
5:06 PM
MDT
5:59 PM
MDT
1h 53m
M T W T F S S
Prices
AS2444
AS Alaska
E75
1:49 PM
MDT
4:26 PM
MDT
1h 37m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

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Great Falls to Seattle
2 carriers, 14 flights/week nonstop.
2 Airlines 14 Flights/wk 511 mi 1h 53m nonstop 9 1-stop hubs

GTF–SEA is served by 2 airlines with nonstop service. Alaska Airlines and Hawaiian Airlines lead the route. The flight covers 511 miles in approximately 1h 53m. Beyond nonstop, 9 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop GTF–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 7 E75 1h53 Oneworld
HA Hawaiian Airlines 7 E75 1h53
Aircraft on this route
E75 Embraer E175 – AS, HA
Alliance coverage
Oneworld: AS (7 flights/wk, 50%)
Unaffiliated: HA (7 flights/wk, 50%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, GTF to SEA direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
14
Outbound / wk
7
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for GTF to SEA.
1-STOP
One-Stop Connections
9
Hubs
~4h
Fastest
~17h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
343
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
GTF → SEA
80%
Generally reliable. Most flights run on time.
Arriving
80%
Return
SEA → GTF
66%
Moderate delays possible. Allow buffer time.
Departing
66%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →

Other ways to reach Seattle from Great Falls

Nearby airports with service to Seattle–Tacoma International Airport.
Metric GTF→SEA HLN→SEA BZN→SEA
Distance from GTF 67 mi 118 mi
Nonstop airlines 2 1 4
Weekly flights 14 7 77
Flight time 1h 53m 1h 50m 1h 6m
Airports within 200 miles of GTF with service to Seattle–Tacoma International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
Seattle is 0 hours the same as Great Falls.
GTF: MDT · SEA: MDT

When it's 6:00 PM in Great Falls, it's 6:00 PM in Seattle.
Distance & Flight Time
511 mi / 822 km
Nonstop flight time is approximately 1h 53m.
Getting from SEA

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.

Seattle Climate

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.

GTF–SEA Quick Facts

Key statistics for the Great Falls to Seattle route.
Route details
Distance511 mi / 822 km
Flight time1h 53m
Time difference0 hours
Airlines (nonstop)2
Weekly flights14 out / 7 return
1-stop connections9 hubs
Origin: GTF
IATA / ICAOGTF / KGTF
TimezoneAmerica/Boise
Passengers/yr0.4M
Elevation3,680 ft / 1,122 m
Destination: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m

Frequently Asked Questions

Common questions about GTF to SEA flights.
Nonstop flights from Great Falls International Airport to Seattle–Tacoma International Airport take approximately 1h 53m. The route covers 511 miles.
2 airlines operate nonstop service: Alaska Airlines and Hawaiian Airlines.
There are approximately 14 nonstop flights per week from GTF to SEA. The return direction has about 7 weekly flights.
Yes, 1-stop connections are available through BOI, ICT, BIL, LAS, BZN, FCA, SLC, DEN and MSO. These options provide additional schedule flexibility.
Yes, return flights from SEA to GTF are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include HLN, BZN and MSO. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from GTF to SEA

Great Falls International Airport (GTF) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines and Hawaiian Airlines. With 14 weekly departures, this is a well served route.

GTF to SEA Flight Duration and Schedule

Nonstop flight time from GTF to SEA ranges from 1 hours 53 minutes. The route covers a distance of 511 miles (822 km). There are approximately 14 weekly flights outbound and 7 return, totaling 21 flights per week in both directions.

Connecting Options and Alternatives

9 one-stop connections are available, with the fastest taking approximately 4 hours via BOI. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Helena (HLN), Bozeman (BZN) and Missoula (MSO).