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

SEA Airport Page →
511 mi airlines 12/wk
On-time Some delays Frequent delays
Flight Schedule 4 flights Verified 12m ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
✓
→
AS3027
AS Alaska
E75L
1:36 PM
MDT
4:17 PM
MDT
1h 41m
—
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
✓
←
AS3310
AS Alaska
E75L
4:57 PM
MDT
6:00 PM
MDT
2h 3m
—
M T W T F S S
Prices
✓
←
AS2444
AS Alaska
E75
5:06 PM
MDT
5:59 PM
MDT
1h 53m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Seattle to Great Falls
1 carrier, 12 flights/week nonstop.
1 Airlines 12 Flights/wk 511 mi 1h 37m nonstop 11 1-stop hubs

SEA–GTF is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 511 miles in approximately 1h 37m. Beyond nonstop, 11 hubs offer 1-stop connections.

Also explore SEA Routes GTF Routes SEA Live Flights GTF Live Flights SEA Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop SEA–GTF service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 12 E75, E75L 1h37-1h41 71% Oneworld –
Aircraft on this route
E75 Embraer E175 – AS
E75L Embraer E175 Long Wing – AS
Alliance coverage
Oneworld: AS (12 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to GTF direction.
Mon
2
flights
Tue
2
flights
Wed
1
flight
Thu
2
flights
Fri
2
flights
Sat
1
flight
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
12
Outbound / wk
12
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to GTF.
1-STOP
One-Stop Connections
11
Hubs
~3h
Fastest
~21h
Longest
YYC ~3h 54m YEG ~4h 27m MCI ~8h 3m MSO ~8h 17m MEM ~9h 23m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
366
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → GTF
71%
Moderate delays possible. Allow buffer time.
Departing
71%
Return
GTF → SEA
98%
Generally reliable. Most flights run on time.
Arriving
98%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →
Know before you go

Travel Essentials

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

When it's 6:00 PM in Seattle, it's 6:00 PM in Great Falls.
Distance & Flight Time
511 mi / 822 km
Nonstop flight time is approximately 1h 37m to 1h 41m.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

Facts

SEA–GTF Quick Facts

Key statistics for the Seattle to Great Falls route.
Route details
Distance511 mi / 822 km
Flight time1h 37m to 1h 41m
Time difference0 hours
Airlines (nonstop)1
Weekly flights12 out / 12 return
1-stop connections11 hubs
Origin: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m
Destination: GTF
Full nameGreat Falls International Airport
IATA / ICAOGTF / KGTF
TimezoneAmerica/Boise
Passengers/yr0.4M
Elevation3,680 ft / 1,122 m
FAQ

Frequently Asked Questions

Common questions about SEA to GTF flights.
Nonstop flights from Seattle–Tacoma International Airport to Great Falls International Airport take approximately 1h 37m to 1h 41m. The route covers 511 miles.
1 airline operates nonstop service: Alaska Airlines.
There are approximately 12 nonstop flights per week from SEA to GTF. The return direction has about 12 weekly flights.
Yes, 1-stop connections are available through YYC, YEG, MCI, MSO, MEM, BZN, LAS, SLC, DEN, FCA and BIL. These options provide additional schedule flexibility.
Yes, return flights from GTF to SEA are available. Use the direction toggle at the top to view the return schedule.
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 SEA to GTF

Seattle–Tacoma International Airport (SEA) and Great Falls International Airport (GTF) are connected by nonstop service from Alaska Airlines. With 12 weekly departures, this is a regularly served route.

SEA to GTF Flight Duration and Schedule

Nonstop flight time from SEA to GTF ranges from 1 hours 37 minutes to 1 hours 41 minutes. The route covers a distance of 511 miles (822 km). There are approximately 12 weekly flights outbound and 12 return, totaling 24 flights per week in both directions.

Connecting Options and Alternatives

11 one-stop connections are available, with the fastest taking approximately 3 hours via YYC. Two-stop connections are also available via intermediate hubs.