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Uncover the best deals on Great Falls to Seattle flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest GTF - SEA Flights
Useful information for finding best airline tickets from Great Falls International to Seattle Tacoma International on your next trip.
Cheapest Round Trip Flight
$328
Delta Airlines
• 1 stop
• 25h 43m
Oct 24 – Oct 26
The cheapest round trip flight from Great Falls to Seattle (GTF-SEA-GTF) is currently $328
Cheapest Direct Flight
$280
Alaska Airlines
• nonstop
• 2h 33m
Oct 24
The cheapest nonstop flight from Great Falls to Seattle (GTF-SEA) is currently $280
Fastest Flight
1m
The fastest nonstop flight from Great Falls to Seattle (GTF-SEA) takes 1m
Top Airlines Flying from Great Falls to Seattle
Latest Flight Deals from Great Falls (GTF) to Seattle (SEA)
Compare and book low fare round-trip air tickets from Great Falls to Seattle. Ideal for travelers with confirmed return itineraries.
Oct 24 - Oct 26, Economy
Great Falls → Seattle
25h 43m
6:27 PM - 9:10 AM • 1 stop
Great Falls → Seattle
9h 2m
11:05 AM - 5:47 PM • 1 stop
Delta Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
16h 50m
5:40 AM - 2:50 PM • 1 stop
Great Falls → Seattle
9h 2m
11:05 AM - 5:47 PM • 1 stop
Delta Airlines
Oct 24 - Oct 26, Economy
Great Falls → Seattle
15h 49m
2:37 PM - 11:26 PM • 2 stops
Great Falls → Seattle
12h 24m
5:05 AM - 1:49 PM • 1 stop
United Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
31m
6:30 AM - 9:19 PM • 1 stop
Great Falls → Seattle
11m
11:05 AM - 5:47 PM • 1 stop
United Airlines
Oct 24 - Oct 26, Economy
Great Falls → Seattle
32h 5m
6:27 PM - 12:52 PM • 1 stop
Great Falls → Seattle
9h 2m
11:05 AM - 5:47 PM • 1 stop
Delta Airlines
Flying to Seattle soon? We've surfaced some of the most affordable last-minute flights from Great Falls to Seattle, ideal for urgent plans or spontaneous trips.
Oct 26 - Oct 27, Economy
Great Falls → Seattle
7h 10m
5:40 AM - 9:10 AM • 1 stop
Great Falls → Seattle
9h 2m
7:32 AM - 5:47 PM • 2 stops
Delta Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
16h 50m
5:40 AM - 2:50 PM • 1 stop
Great Falls → Seattle
9h 2m
11:05 AM - 5:47 PM • 1 stop
Delta Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
31m
6:30 AM - 9:19 PM • 1 stop
Great Falls → Seattle
11m
11:05 AM - 5:47 PM • 1 stop
United Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
- • 1 stop
Great Falls → Seattle
- • 1 stop
United Airlines
Oct 26 - Oct 27, Economy
Great Falls → Seattle
18h 34m
2:45 PM - 12:59 AM • 2 stops
Great Falls → Seattle
9h 2m
11:05 AM - 5:47 PM • 1 stop
United Airlines
Looking for the fastest way to Seattle? These direct flight options from GTF to SEA offer both convenience and value—no layovers, just straight to your destination.
Oct 24 - Oct 26, Economy
Great Falls → Seattle
2h 33m
5:15 PM - 6:08 PM • nonstop
Great Falls → Seattle
2h 16m
1:59 PM - 4:35 PM • nonstop
Alaska Airlines
FAQs on Great Falls to Seattle Flights
What are the airports in Great Falls?
GTF
What’s the most popular airline flying from GTF to SEA?
The most popular airline flying from Great Falls to Seattle are
Can I fly from GTF to SEA non-stop?
Yes, you can fly GTF to SEA non-stop on
Which airlines fly nonstop between Great Falls and Seattle?
The non-stop flights between Great Falls and Seattle are .
What’s the earliest departure time from GTF to SEA Airport?
The earliest flight leaves GTF at 5:40 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Great Falls to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from GTF to SEA?
Read the fare rules of the Great Falls to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Great Falls and Seattle?
operate flights between Great Falls and Seattle
How long does a flight from Great Falls to Seattle take?
It takes approximately 2 hour to fly non-stop from GTF to SEA, which is 511.99 miles by air.
Which airlines provide the cheapest flights from Great Falls (GTF) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from GTF were found on UA : USD 395
Do I need a passport to fly between GTF and SEA?
No
What’s the latest departure time from GTF to SEA ?
The last flight leaves GTF at 2:4500 pm
Great Falls (GTF) to Seattle (SEA): Airport Information
| Origin Airport | Great Falls International , Great Falls, US |
| Destination Airport | Seattle Tacoma International , Seattle, US |
| Distance | 512 miles |
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