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$93+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — SEA
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 July 28, 2025.

Round-trip from

$173
(Delta)

One-way from

$93
(Trip.com)

Popular in

April

Cheapest in

January

Average price

$298

Good round-trip deal

$306 or less

Good one-way deal

$224 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 ($60 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 July 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 July 28, 2025.

This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 8/166:06 pmGTF - SEA
1 stop5h 14mDelta
Tue 8/195:30 amSEA - GTF
1 stop4h 33mDelta
Deal found 7/26$173
This Hawaiian Airlines deal was found by Cheapflights users on 7/26. 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 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 7/26$192
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:50 pmGTF - SEA
Nonstop1h 52mAlaska Airlines
Mon 11/173:35 pmSEA - GTF
Nonstop1h 35mAlaska Airlines
Deal found 7/26$214

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 July 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

Sat 8/16

6:06 pm-10:20 pm

1 stop5h 14m

Seattle/Tacoma Intl

Tue 8/19

5:30 am-11:03 am

1 stop4h 33m

$173

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

$192

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Fri 11/14

6:50 pm-7:42 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Mon 11/17

3:35 pm-6:10 pm

Nonstop1h 35m

$214

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 9/9

4:29 pm-5:32 pm

Nonstop2h 03m

$93

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Tue 8/19

4:55 pm-5:46 pm

Nonstop1h 51m

$95

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 8/16

6:06 pm-10:20 pm

1 stop5h 14m

$104

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Mon 8/11

10:14 am-4:25 pm

1 stop7h 11m

$142

Great FallsSeattle

GTF - SEA

GTFSEA

Great Falls

Sat 8/16

6:25 am-8:57 pm

3 stops15h 32m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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 $389). 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 July 28, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 25% 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 July 28, 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).

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 July 28, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines 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

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 $173. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $212, and Alaska Airlines, from $224. Delta is priced at 38% 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?

    $93 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 $95 and $104, respectively.

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

    Consider Horizon Air (79%), Alaska Airlines (75%) or Hawaiian Airlines (75%) 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 $325, our data indicates the cheapest price to be $194. The most popular route (Great Falls - Seattle/Tacoma Intl), is priced around $182.

  • 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 $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$387FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$186Average$275FlexibilityNo cancel feeOn-time75%

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