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Cheap flights from Great Falls to Seattle from $103

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 10/29. 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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Cheap round-trip flights

Alaska Airlines Logo
6:15 pm - 7:10 pmGTF-SEA
1h 55mnonstop
Alaska Airlines Logo
3:00 pm - 5:35 pmSEA-GTF
1h 35mnonstop
$177Alaska Airlines
Find Deal
sáb., oct. 11 - sáb., oct. 18
Hawaiian Airlines Logo
6:15 pm - 7:10 pmGTF-SEA
1h 55mnonstop
Hawaiian Airlines Logo
3:35 pm - 6:10 pmSEA-GTF
1h 35mnonstop
$202Hawaiian Airlines
Find Deal
sáb., oct. 25 - lun., oct. 27
Alaska Airlines Logo
7:42 pm - 8:35 pmGTF-SEA
1h 53mnonstop
Alaska Airlines Logo
4:19 pm - 6:55 pmSEA-GTF
1h 36mnonstop
$207Alaska Airlines
Find Deal
dom., nov. 23 - vie., dic. 5
Alaska Airlines Logo
7:42 pm - 8:35 pmGTF-SEA
1h 53mnonstop
Alaska Airlines Logo
4:19 pm - 6:55 pmSEA-GTF
1h 36mnonstop
$232Alaska Airlines
Find Deal
lun., nov. 24 - mié., dic. 3
Delta Logo
1:08 pm - 6:24 pmGTF-SEA
6h 16m1 stop
Delta Logo
5:00 pm - 11:06 pmSEA-GTF
5h 06m1 stop
$241Delta
Find Deal
sáb., oct. 25 - lun., oct. 27
Alaska Airlines Logo
7:35 pm - 8:25 pmGTF-SEA
1h 50mnonstop
Alaska Airlines Logo
4:19 pm - 6:55 pmSEA-GTF
1h 36mnonstop
$258Alaska Airlines
Find Deal
vie., dic. 5 - dom., dic. 7
Delta Logo
6:10 pm - 11:20 pmGTF-SEA
6h 10m1 stop
Delta Logo
5:25 am - 12:31 pmSEA-GTF
6h 06m1 stop
$261Delta
Find Deal
sáb., nov. 22 - mié., dic. 3
Alaska Airlines Logo
7:42 pm - 8:35 pmGTF-SEA
1h 53mnonstop
Alaska Airlines Logo
4:19 pm - 6:55 pmSEA-GTF
1h 36mnonstop
$262Alaska Airlines
Find Deal
mié., nov. 26 - mié., dic. 3
Delta Logo
6:10 pm - 12:11 amGTF-SEA
7h 01m1 stop
Delta Logo
5:00 pm - 10:30 pmSEA-GTF
4h 30m1 stop
$271Delta
Find Deal
dom., nov. 23 - mié., dic. 3
United Airlines Logo
7:00 am - 5:53 pmGTF-SEA
11h 53m1 stop
United Airlines Logo
5:31 pm - 9:11 pmSEA-GTF
26h 40m2 stops
$520United Airlines
Find Deal
sáb., oct. 11 - sáb., oct. 18

Alaska Airlines flights from Great Falls to Seattle

Our best Alaska Airlines deals on Great Falls to Seattle flight tickets
Alaska Airlines
Oct 11
GTF6:15 pmGreat Falls
1h 55m
SEA7:10 pmSeattle/Tacoma Intl
Oct 18
SEA3:00 pmSeattle/Tacoma Intl
1h 35m
GTF5:35 pmGreat Falls
$177
Find similar
Alaska Airlines
Nov 23
GTF7:42 pmGreat Falls
1h 53m
SEA8:35 pmSeattle/Tacoma Intl
Dec 5
SEA4:19 pmSeattle/Tacoma Intl
1h 36m
GTF6:55 pmGreat Falls
$207
Find similar
Alaska Airlines
Nov 24
GTF7:42 pmGreat Falls
1h 53m
SEA8:35 pmSeattle/Tacoma Intl
Dec 3
SEA4:19 pmSeattle/Tacoma Intl
1h 36m
GTF6:55 pmGreat Falls
$232
Find similar

Hawaiian Airlines flights from Great Falls to Seattle

Our best Hawaiian Airlines deals on Great Falls to Seattle flight tickets
Hawaiian Airlines
Oct 25
GTF6:15 pmGreat Falls
1h 55m
SEA7:10 pmSeattle/Tacoma Intl
Oct 27
SEA3:35 pmSeattle/Tacoma Intl
1h 35m
GTF6:10 pmGreat Falls
$202
Find similar
Hawaiian Airlines
Nov 7
GTF6:50 pmGreat Falls
1h 52m
SEA7:42 pmSeattle/Tacoma Intl
Nov 8
SEA3:35 pmSeattle/Tacoma Intl
1h 35m
GTF6:10 pmGreat Falls
$288
Find similar
Hawaiian Airlines
Oct 6
GTF6:15 pmGreat Falls
1h 55m
SEA7:10 pmSeattle/Tacoma Intl
Oct 9
SEA3:00 pmSeattle/Tacoma Intl
1h 35m
GTF5:35 pmGreat Falls
$462
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 septiembre 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

sáb. 10/11

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

sáb. 10/18

3:00 pm-5:35 pm

Nonstop1h 35m

$177

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

sáb. 10/25

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

lun. 10/27

3:35 pm-6:10 pm

Nonstop1h 35m

$202

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

dom. 11/23

7:42 pm-8:35 pm

Nonstop1h 53m

Seattle/Tacoma Intl

vie. 12/5

4:19 pm-6:55 pm

Nonstop1h 36m

$207

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

lun. 11/24

7:42 pm-8:35 pm

Nonstop1h 53m

Seattle/Tacoma Intl

mié. 12/3

4:19 pm-6:55 pm

Nonstop1h 36m

$232

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

sáb. 10/25

1:08 pm-6:24 pm

1 stop6h 16m

Seattle/Tacoma Intl

lun. 10/27

5:00 pm-11:06 pm

1 stop5h 06m

$241

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

vie. 12/5

7:35 pm-8:25 pm

Nonstop1h 50m

Seattle/Tacoma Intl

dom. 12/7

4:19 pm-6:55 pm

Nonstop1h 36m

$258

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

sáb. 11/22

6:10 pm-11:20 pm

1 stop6h 10m

Seattle/Tacoma Intl

mié. 12/3

5:25 am-12:31 pm

1 stop6h 06m

$261

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

mié. 11/26

7:42 pm-8:35 pm

Nonstop1h 53m

Seattle/Tacoma Intl

mié. 12/3

4:19 pm-6:55 pm

Nonstop1h 36m

$262

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

dom. 11/23

6:10 pm-12:11 am

1 stop7h 01m

Seattle/Tacoma Intl

mié. 12/3

5:00 pm-10:30 pm

1 stop4h 30m

$271

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

sáb. 10/11

7:00 am-5:53 pm

1 stop11h 53m

Seattle/Tacoma Intl

sáb. 10/18

5:31 pm-9:11 pm

2 stops26h 40m

$520

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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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 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 $162. If you don’t want to visit Seattle in January, then you should wait until August to fly from Great Falls, when ticket prices are also cheap, with an average price of $238.

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 $368. 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 $569.

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

Flying to Seattle from Great Falls at noon is the least expensive time of day to depart. momondo users have found prices as low as $456 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $607. 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?

You could potentially save up to 36% on your flight if you consider stops on a Great Falls to Seattle flight.

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

$194

Fastest flight time

1h 48m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Great Falls in the past 72 hours is $194. The best round-trip flight deal from Great Falls to Seattle found on momondo in the last 72 hours is $381.
The fastest flight from Great Falls to Seattle takes 1h 48m
Direct flights go from Great Falls to Seattle every day.
There is 1 airport near Seattle: 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 1h 48m.

  • 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
7,954 reviews
Search Delta flights
Alaska AirlinesPriceFrom $186Free CancellationRating
8.0
10,000 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 $186. Generally, Alaska Airlines has 5 flights on this route every week with an average price of $293. 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
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

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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