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$127+ Cheap flights from Great Falls to Seattle (GTF - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SEA
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$127
(Alaska Airlines)

Popular in

April

Cheapest in

January

Average price

$306

Good round-trip deal

$262 or less

Good one-way deal

$224 or less
Provider with most accurate pricing for Great Falls-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Great Falls-Seattle/Tacoma Intl flights.
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From Great Falls to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 15% potential increase in price ($51 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 October 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 October 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 12/37:35 pmGTF - SEA
Nonstop1h 50mAlaska Airlines
Wed 12/104:19 pmSEA - GTF
Nonstop1h 36mAlaska Airlines
Deal found 10/27$127
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 11/156:50 pmGTF - SEA
Nonstop1h 52mAlaska Airlines
Sun 11/163:35 pmSEA - GTF
Nonstop1h 35mAlaska Airlines
Deal found 10/25$137
This Delta deal was found by Cheapflights users on 10/26. 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 11/176:10 pmGTF - SEA
1 stop7h 01mDelta
Mon 11/241:44 pmSEA - GTF
1 stop7h 46mDelta
Deal found 10/26$237
This Delta deal was found by Cheapflights users on 10/25. 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 11/116:10 pmGTF - SEA
1 stop6h 10mDelta
Mon 11/179:30 amSEA - GTF
1 stop7h 00mDelta
Deal found 10/25$323
This Delta deal was found by Cheapflights users on 10/27. 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 11/116:10 pmGTF - SEA
1 stop6h 10mDelta
Sat 11/1511:15 amSEA - GTF
1 stop5h 15mDelta
Deal found 10/27$357
This Delta deal was found by Cheapflights users on 10/26. 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 11/146:10 pmGTF - SEA
1 stop7h 01mDelta
Sun 11/165:25 amSEA - GTF
1 stop6h 07mDelta
Deal found 10/26$363
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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 11/206:50 pmGTF - SEA
Nonstop1h 52mAlaska Airlines
Sun 11/234:26 pmSEA - GTF
Nonstop1h 36mAlaska Airlines
Deal found 10/25$382
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/176:50 pmGTF - SEA
Nonstop1h 52mAlaska Airlines
Mon 11/244:26 pmSEA - GTF
Nonstop1h 36mAlaska Airlines
Deal found 10/26$397
This KAYAK deal was found by Cheapflights users on 10/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:42 pmGTF - SEA
Nonstop1h 53mAlaska Airlines
Fri 11/284:26 pmSEA - GTF
Nonstop1h 36mAlaska Airlines
Deal found 10/26$408
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 11/66:50 pmGTF - SEA
Nonstop1h 52mAlaska Airlines
Sun 11/93:35 pmSEA - GTF
Nonstop1h 35mAlaska Airlines
Deal found 10/26$438

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 October 28, 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

Wed 12/3

7:35 pm-8:25 pm

Nonstop1h 50m

Seattle/Tacoma Intl

Wed 12/10

4:19 pm-6:55 pm

Nonstop1h 36m

$127

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 3/10

1:10 pm-5:00 pm

1 stop4h 50m

Seattle/Tacoma Intl

Wed 3/11

11:25 am-5:44 pm

1 stop5h 19m

$176

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

$177

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 12/13

6:10 pm-11:25 pm

1 stop6h 15m

Seattle/Tacoma Intl

Mon 12/15

11:15 am-5:28 pm

1 stop5h 13m

$217

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 11/17

6:10 pm-12:11 am

1 stop7h 01m

Seattle/Tacoma Intl

Mon 11/24

1:44 pm-10:30 pm

1 stop7h 46m

$237

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 3/13

6:15 pm-12:11 am

1 stop6h 56m

Seattle/Tacoma Intl

Mon 3/16

11:25 am-5:44 pm

1 stop5h 19m

$297

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 12/23

7:21 pm-8:34 pm

Nonstop2h 13m

$179

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 12/1

7:42 pm-8:35 pm

Nonstop1h 53m

$209

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 12/1

6:10 pm-12:11 am

1 stop7h 01m

$268

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 12/1

6:44 pm-7:53 pm

2 stops26h 09m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 16 results
1
2

Compare providers for flights from Great Falls to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Great Falls-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Great Falls-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, November is the cheapest month in which you can book a flight from Great Falls to Seattle (average of $127). Flying from Great Falls to Seattle in March is currently the most expensive (average of $238). 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 October 28, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 35% on flights from Great Falls to Seattle by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Great Falls to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Great Falls to Seattle. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Great Falls to Seattle flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 28, 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
11,199 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

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
11,199 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

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
7.9
Good
7,995 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

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 8 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 48m. Fly via Alaska Airlines, Delta, or Hawaiian Airlines 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 most reliable airlines from Great Falls to Seattle?

    Consider Hawaiian Airlines (86%), SkyWest Airlines (84%) or Alaska Airlines (82%) 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 $302, our data indicates the cheapest price to be $83. The most popular route (Great Falls - Seattle/Tacoma Intl), is priced around $176.

  • 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, November is the cheapest month in which you can book a flight from Great Falls to Seattle (average of $127). Flying from Great Falls to Seattle in March is currently the most expensive (average of $238). 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
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$282FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$166Average$285FlexibilityNo cancel feeOn-time75%

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