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Cheap flights from Great Falls to Seattle from $94

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Seattle departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Great Falls to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:59 pm - 6:57 pm
GTF
-
SEA
1h 58mnonstop
Alaska Airlines Logo
2:42 pm - 5:19 pm
SEA
-
GTF
1h 37mnonstop
$146Alaska Airlines
Tue, Jan 13 - Tue, Jan 20
Alaska Airlines Logo
6:28 pm - 7:21 pm
GTF
-
SEA
1h 53mnonstop
Alaska Airlines Logo
3:11 pm - 5:48 pm
SEA
-
GTF
1h 37mnonstop
$147Alaska Airlines
Sat, Feb 28 - Wed, Mar 4
Delta Logo
1:15 pm - 6:29 pm
GTF
-
SEA
6h 14m1 stop
Delta Logo
4:55 pm - 10:30 pm
SEA
-
GTF
4h 35m1 stop
$166Delta
Tue, Jan 13 - Tue, Jan 20
Delta Logo
1:15 pm - 6:29 pm
GTF
-
SEA
6h 14m1 stop
Delta Logo
4:55 pm - 10:30 pm
SEA
-
GTF
4h 35m1 stop
$176Delta
Sun, Jan 11 - Tue, Jan 20
Alaska Airlines Logo
5:59 pm - 6:57 pm
GTF
-
SEA
1h 58mnonstop
Alaska Airlines Logo
2:42 pm - 5:19 pm
SEA
-
GTF
1h 37mnonstop
$202Alaska Airlines
Fri, Jan 9 - Tue, Jan 13
Delta Logo
6:10 pm - 12:09 am
GTF
-
SEA
6h 59m1 stop
Delta Logo
5:30 am - 12:30 pm
SEA
-
GTF
6h 00m1 stop
$206Delta
Tue, Feb 17 - Thu, Feb 19
Delta Logo
6:10 pm - 11:22 pm
GTF
-
SEA
6h 12m1 stop
Delta Logo
9:25 am - 5:30 pm
SEA
-
GTF
7h 05m1 stop
$217Delta
Fri, Jan 9 - Tue, Jan 13
Alaska Airlines Logo
4:57 pm - 6:00 pm
GTF
-
SEA
2h 03mnonstop
Alaska Airlines Logo
1:36 pm - 4:17 pm
SEA
-
GTF
1h 41mnonstop
$242Alaska Airlines
Tue, Feb 17 - Thu, Feb 19
Delta Logo
5:30 am - 9:19 am
GTF
-
SEA
4h 49m1 stop
Delta Logo
5:25 am - 12:33 pm
SEA
-
GTF
6h 08m1 stop
$257Delta
Sat, Jan 10 - Sat, Jan 17
Alaska Airlines Logo
5:59 pm - 6:57 pm
GTF
-
SEA
1h 58mnonstop
Alaska Airlines Logo
2:42 pm - 5:19 pm
SEA
-
GTF
1h 37mnonstop
$258Alaska Airlines
Fri, Jan 9 - Sun, Jan 11

Alaska Airlines flights from Great Falls to Seattle

Our best Alaska Airlines deals on Great Falls to Seattle flight tickets
Alaska Airlines
Jan 13
GTF5:59 pmGreat Falls
1h 58m
SEA6:57 pmSeattle/Tacoma Intl
Jan 20
SEA2:42 pmSeattle/Tacoma Intl
1h 37m
GTF5:19 pmGreat Falls
$146
Find similar
Alaska Airlines
Feb 28
GTF6:28 pmGreat Falls
1h 53m
SEA7:21 pmSeattle/Tacoma Intl
Mar 4
SEA3:11 pmSeattle/Tacoma Intl
1h 37m
GTF5:48 pmGreat Falls
$147
Find similar
Alaska Airlines
Jan 9
GTF5:59 pmGreat Falls
1h 58m
SEA6:57 pmSeattle/Tacoma Intl
Jan 13
SEA2:42 pmSeattle/Tacoma Intl
1h 37m
GTF5:19 pmGreat Falls
$202
Find similar

Delta flights from Great Falls to Seattle

Our best Delta deals on Great Falls to Seattle flight tickets
Delta
Jan 13
GTF1:15 pmGreat Falls
6h 14m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
Jan 20
SEA4:55 pmSeattle/Tacoma Intl
4h 35m
1 stop
GTF10:30 pmGreat Falls
$166
Find similar
Delta
Jan 11
GTF1:15 pmGreat Falls
6h 14m
1 stop
SEA6:29 pmSeattle/Tacoma Intl
Jan 20
SEA4:55 pmSeattle/Tacoma Intl
4h 35m
1 stop
GTF10:30 pmGreat Falls
$176
Find similar
Delta
Feb 17
GTF6:10 pmGreat Falls
6h 59m
1 stop
SEA12:09 amSeattle/Tacoma Intl
Feb 19
SEA5:30 amSeattle/Tacoma Intl
6h 00m
1 stop
GTF12:30 pmGreat Falls
$206
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from Great Falls to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 1/13

5:59 pm-6:57 pm

Nonstop1h 58m

Seattle/Tacoma Intl

Tue 1/20

2:42 pm-5:19 pm

Nonstop1h 37m

$146

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 2/28

6:28 pm-7:21 pm

Nonstop1h 53m

Seattle/Tacoma Intl

Wed 3/4

3:11 pm-5:48 pm

Nonstop1h 37m

$147

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 1/13

1:15 pm-6:29 pm

1 stop6h 14m

Seattle/Tacoma Intl

Tue 1/20

4:55 pm-10:30 pm

1 stop4h 35m

$166

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sun 1/11

1:15 pm-6:29 pm

1 stop6h 14m

Seattle/Tacoma Intl

Tue 1/20

4:55 pm-10:30 pm

1 stop4h 35m

$176

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 1/9

5:59 pm-6:57 pm

Nonstop1h 58m

Seattle/Tacoma Intl

Tue 1/13

2:42 pm-5:19 pm

Nonstop1h 37m

$202

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 2/17

6:10 pm-12:09 am

1 stop6h 59m

Seattle/Tacoma Intl

Thu 2/19

5:30 am-12:30 pm

1 stop6h 00m

$206

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 1/9

6:10 pm-11:22 pm

1 stop6h 12m

Seattle/Tacoma Intl

Tue 1/13

9:25 am-5:30 pm

1 stop7h 05m

$217

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 2/17

4:57 pm-6:00 pm

Nonstop2h 03m

Seattle/Tacoma Intl

Thu 2/19

1:36 pm-4:17 pm

Nonstop1h 41m

$242

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 1/10

5:30 am-9:19 am

1 stop4h 49m

Seattle/Tacoma Intl

Sat 1/17

5:25 am-12:33 pm

1 stop6h 08m

$257

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 1/9

5:59 pm-6:57 pm

Nonstop1h 58m

Seattle/Tacoma Intl

Sun 1/11

2:42 pm-5:19 pm

Nonstop1h 37m

$258

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Great Falls to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Great Falls and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Great Falls to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $161. If you don’t want to visit Seattle in January, then you should wait until December to fly from Great Falls, when ticket prices are also cheap, with an average price of $232.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Great Falls is on a Thursday. momondo users have found tickets for Thursday departures for as low as $362. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Great Falls because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $498.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Great Falls in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $436 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $603. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Great Falls to Seattle/Tacoma Intl flight route?

Fly from Great Falls to Seattle/Tacoma Intl for the best Great Falls - Seattle/Tacoma Intl flight prices

What cabin class options are available on Great Falls to Seattle/Tacoma Intl flights?

There are 2 cabin classes available to choose from on Great Falls to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Great Falls to Seattle flights?

No. A direct flight is the cheapest option for a flight between Great Falls to Seattle.

When to book flights from Great Falls to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to Seattle (GTF to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Seattle

Best Price Found

$181

Fastest flight time

2h 13m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Seattle

1 airport
The best one-way flight to Seattle from Great Falls in the past 72 hours is $181. The best round-trip flight deal from Great Falls to Seattle found on momondo in the last 72 hours is $318.
The fastest flight from Great Falls to Seattle takes 2h 13m
Direct flights go from Great Falls to Seattle on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Alaska Airlines and Hawaiian Airlines.
There is 1 airport in Seattle. From Great Falls there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • How far is Great Falls to Seattle/Tacoma Intl by plane?

    There are 514.0 mi between Great Falls and Seattle/Tacoma Intl. A reasonable flight in good conditions will take 2h 13m.

  • When did momondo last update prices for flights from Great Falls Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Great Falls Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Great Falls Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Great Falls Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Great Falls to Seattle?

  • What is the most popular airline from Great Falls to Seattle?

Best airlines flying from Great Falls to Seattle

Compare and see reviews for airlines that fly from Great Falls to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $128Free CancellationRating
7.9
8,008 reviews
Search Delta flights
Alaska AirlinesPriceFrom $163Free CancellationRating
8.0
11,452 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Great Falls to Seattle

    The lowest priced Alaska Airlines flight from Great Falls to Seattle from the last 72 hours was $163. Generally, Alaska Airlines has 6 flights on this route every week with an average price of $298. Alaska Airlines is rated 8.0/10 by our users.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Great Falls to Seattle for you.

Can I find flights from Great Falls to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Great Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Great Falls to Seattle?

Once all potential Great Falls to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Great Falls to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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