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$79+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$177
(Hawaiian Airlines)

One-way from

$79
(Hawaiian Airlines)

Popular in

April

Cheapest in

January

Average price

$268

Good round-trip deal

$238 or less

Good one-way deal

$204 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. 17% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 9/104:29 pmGTF - SEA
Nonstop2h 03mHawaiian Airlines
Mon 9/291:14 pmSEA - GTF
Nonstop1h 35mHawaiian Airlines
Deal found 6/12$177
This Delta deal was found by Cheapflights users on 6/9. 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 9/236:20 pmGTF - SEA
1 stop4h 56mDelta
Fri 9/265:45 amSEA - GTF
1 stop4h 24mDelta
Deal found 6/9$196
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 8/314:29 pmGTF - SEA
Nonstop2h 03mAlaska Airlines
Sun 9/71:14 pmSEA - GTF
Nonstop1h 35mAlaska Airlines
Deal found 6/11$197
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/108:02 pmGTF - SEA
3 stops27h 45mMultiple Airlines
Thu 7/175:30 pmSEA - GTF
1 stop14h 54mMultiple Airlines
Deal found 6/10$485
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/232:35 pmGTF - SEA
2 stops20h 08mUnited Airlines
Fri 9/267:04 pmSEA - GTF
1 stop17h 22mUnited Airlines
Deal found 6/9$526

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 June 12, 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 9/10

4:29 pm-5:32 pm

Nonstop2h 03m

Seattle/Tacoma Intl

Mon 9/29

1:14 pm-3:49 pm

Nonstop1h 35m

$177

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 9/23

6:20 pm-10:16 pm

1 stop4h 56m

Seattle/Tacoma Intl

Fri 9/26

5:45 am-11:09 am

1 stop4h 24m

$196

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sun 8/31

4:29 pm-5:32 pm

Nonstop2h 03m

Seattle/Tacoma Intl

Sun 9/7

1:14 pm-3:49 pm

Nonstop1h 35m

$197

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Thu 7/10

8:02 pm-10:47 pm

3 stops27h 45m

Seattle/Tacoma Intl

Thu 7/17

5:30 pm-9:24 am

1 stop14h 54m

$485

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 9/23

2:35 pm-9:43 am

2 stops20h 08m

Seattle/Tacoma Intl

Fri 9/26

7:04 pm-1:26 pm

1 stop17h 22m

$526

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Wed 9/10

4:29 pm-5:32 pm

Nonstop2h 03m

$79

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Wed 9/10

6:06 pm-10:15 pm

1 stop5h 09m

$88

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sun 8/24

4:29 pm-5:32 pm

Nonstop2h 03m

$99

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Wed 9/10

7:00 am-10:15 pm

2 stops16h 15m

$287

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Thu 7/10

8:02 pm-10:47 pm

3 stops27h 45m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 July is currently the most expensive (average of $391). 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 June 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from Great Falls to Seattle by exploring options for tickets at noon.

Weekly flight availability from Great Falls to Seattle

Explore weekly flight availability from Great Falls to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from GTF to SEA are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
To help decide which airline to fly from Great Falls to Seattle, see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 51m on average. When it comes time to book airfare, you have a few options: there are 2 outbound flights 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 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $177. Other airlines that can offer you cheap pricing are Delta, from $196, and Alaska Airlines, from $197. Hawaiian Airlines is priced at 37% 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?

    $79 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 Delta and Alaska Airlines, with prices starting from $88 and $99, respectively.

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

    Consider Horizon Air (74%), Alaska Airlines (71%) or Hawaiian Airlines (71%) 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 $248, our data indicates the cheapest price to be $159. 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 July is currently the most expensive (average of $391). 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 Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$336FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$186Average$268FlexibilityNo cancel feeOn-time75%

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