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$124+ Cheap flights from Great Falls to Seattle (GTF - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Great Falls to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$205
(Trip.com)

One-way from

$124
(Hawaiian Airlines)

Popular in

April

Cheapest in

January

Average price

$248

Good round-trip deal

$388 or less

Good one-way deal

$194 or less
From Great Falls to Seattle/Tacoma Intl
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One-way flight from Great Falls to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 16% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Great Falls to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Great Falls to Seattle/Tacoma Intl.
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Find flight deals from Great Falls to Seattle

Cheapest flights from Great Falls to Seattle
Explore the most affordable flight options available from Great Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:15 pmGTF - SEA
Nonstop1h 55mHawaiian Airlines
Sat 10/253:00 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/11$177
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:09 pmGTF - SEA
1 stop5h 13mDelta
Sat 10/255:25 amSEA - GTF
1 stop6h 03mDelta
Deal found 9/11$186
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:50 pmGTF - SEA
Nonstop1h 52mHawaiian Airlines
Thu 11/63:35 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/10$205
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:09 pmGTF - SEA
1 stop5h 13mDelta
Thu 10/2311:15 amSEA - GTF
1 stop5h 14mDelta
Deal found 9/11$241
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:15 pmGTF - SEA
Nonstop1h 55mHawaiian Airlines
Mon 10/133:00 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/11$262
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:50 pmGTF - SEA
Nonstop1h 52mHawaiian Airlines
Sun 11/23:35 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/10$292
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:15 pmGTF - SEA
Nonstop1h 55mHawaiian Airlines
Thu 10/233:00 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/11$307
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:09 pmGTF - SEA
1 stop6h 50mDelta
Thu 10/95:25 amSEA - GTF
1 stop6h 03mDelta
Deal found 9/11$321
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2410:56 amGTF - SEA
1 stop27h 26mMultiple Airlines
Sat 11/299:53 pmSEA - GTF
1 stop22h 42mMultiple Airlines
Deal found 9/11$326
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:11 pmGTF - SEA
1 stop6h 48mDelta
Tue 9/305:30 amSEA - GTF
1 stop5h 55mDelta
Deal found 9/11$337
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:15 pmGTF - SEA
Nonstop1h 55mAlaska Airlines
Mon 10/133:00 pmSEA - GTF
Nonstop1h 35mAlaska Airlines
Deal found 9/11$348
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:15 pmGTF - SEA
Nonstop1h 55mHawaiian Airlines
Thu 10/93:00 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 9/10$377

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Great Falls to Seattle that are best for you.

Fly from

Great Falls

Fly to

Seattle

Route

Depart

Return

Price

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 10/21

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

Sat 10/25

3:00 pm-5:35 pm

Nonstop1h 35m

$177

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 10/21

6:09 pm-10:22 pm

1 stop5h 13m

Seattle/Tacoma Intl

Sat 10/25

5:25 am-12:28 pm

1 stop6h 03m

$186

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Thu 10/30

6:50 pm-7:42 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Thu 11/6

3:35 pm-6:10 pm

Nonstop1h 35m

$205

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 10/10

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

Mon 10/13

3:00 pm-5:35 pm

Nonstop1h 35m

$262

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Thu 10/30

6:50 pm-7:42 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 11/2

3:35 pm-6:10 pm

Nonstop1h 35m

$292

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 3/10

4:00 pm-4:48 pm

Nonstop1h 48m

Seattle/Tacoma Intl

Wed 3/11

12:45 pm-3:20 pm

Nonstop1h 35m

$298

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 10/18

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

Thu 10/23

3:00 pm-5:35 pm

Nonstop1h 35m

$307

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 10/6

6:09 pm-11:59 pm

1 stop6h 50m

Seattle/Tacoma Intl

Thu 10/9

5:25 am-12:28 pm

1 stop6h 03m

$321

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 10/17

6:15 pm-7:10 pm

Nonstop1h 55m

Seattle/Tacoma Intl

Mon 10/20

3:00 pm-5:35 pm

Nonstop1h 35m

$337

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 9/26

4:29 pm-5:32 pm

Nonstop2h 03m

Seattle/Tacoma Intl

Tue 9/30

1:14 pm-3:49 pm

Nonstop1h 35m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
1
2

Best time to book a flight from Great Falls to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Great Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Great Falls to Seattle

What is the cheapest month to book a flight from Great Falls to Seattle?

Currently, January is the cheapest month in which you can book a flight from Great Falls to Seattle (average of $238). Flying from Great Falls to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GTF to SEA?

Find hourly flight availability from Great Falls to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 63% on flights from Great Falls to Seattle by exploring options for tickets at noon.

How much does it cost to fly round-trip from Great Falls to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated September 11, 2025.
See what other customers who have flown with Alaska Airlines and Delta from Great Falls to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Great Falls to Seattle?

    To fly from Great Falls to Seattle, you need to book a flight from Great Falls (GTF) to Seattle/Tacoma Intl (SEA). Nonstop flights to Seattle/Tacoma Intl from Great Falls take 1h 48m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Great Falls to Seattle/Tacoma Intl offered by 2 different airlines.

  • How popular is this Great Falls to Seattle flight route?

    The Great Falls to Seattle/Tacoma Intl flight path was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Great Falls to Seattle?

    There are many flights that can get you from Great Falls to Seattle in 1h 55m. Fly via Hawaiian Airlines or Delta to get the fastest option. Airlines will cover a distance of 510 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Great Falls to Seattle round-trip?

    Cheapflights users have booked flights from Great Falls to Seattle round-trip from $128. Another airline that can offer you cheap pricing is Alaska Airlines. Delta is priced at 55% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Great Falls to Seattle one-way?

    $124 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $149 and $188, respectively.

  • What are the most reliable airlines from Great Falls to Seattle?

    Consider SkyWest Airlines (83%), Alaska Airlines (81%) or Hawaiian Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Great Falls to Seattle.

  • What are the cheapest flights from Great Falls to Seattle?

    Looking for the cheapest flight from Great Falls to Seattle? While on average our users pay $321, our data indicates the cheapest price to be $193. The most popular route (Great Falls - Seattle/Tacoma Intl), is priced around $196.

  • Can I find deals for flights from Great Falls to Seattle that include hotel bookings?

    Yes. In addition to deals on Great Falls to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Seattle.

  • Can I find deals for business class flights from Great Falls to Seattle?

    Yes. Cheapflights offers flight deals from Great Falls to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Great Falls to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Great Falls to Seattle (average of $238). Flying from Great Falls to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Great Falls to Seattle

Discover the top 2 airlines that operate flights from Great Falls to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$387FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$186Average$293FlexibilityNo cancel feeOn-time75%

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