$99 Cheap Flights from Seattle (SEA) to Great Falls (GTF)

View $99 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Great Falls, MT (GTF-Great Falls Intl.)

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Cheap Flights from Seattle to Great Falls (SEA-GTF)

Prices were available within the past 7 days and start at $99 for one-way flights and $152 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 11 - Sat, Oct 18
SEA
Seattle
GTF
Great Falls
$152 Roundtrip, found 13 hours ago
$152
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Seattle to Great Falls, returning Sat, Oct 18, priced at $152 found 13 hours ago
Alaska Airlines
Sat, Aug 23 - Sat, Aug 30
SEA
Seattle
GTF
Great Falls
$162 Roundtrip, found 8 hours ago
$162
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sat, Aug 23 from Seattle to Great Falls, returning Sat, Aug 30, priced at $162 found 8 hours ago
Delta
Tue, Sep 9 - Sat, Sep 13
SEA
Seattle
GTF
Great Falls
$172 Roundtrip, found 1 day ago
$172
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 9 from Seattle to Great Falls, returning Sat, Sep 13, priced at $172 found 1 day ago
Alaska Airlines
Fri, Nov 14 - Tue, Nov 18
SEA
Seattle
GTF
Great Falls
$172 Roundtrip, found 21 hours ago
$172
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Fri, Nov 14 from Seattle to Great Falls, returning Tue, Nov 18, priced at $172 found 21 hours ago
Alaska Airlines
Sat, Aug 23 - Sun, Aug 24
SEA
Seattle
GTF
Great Falls
$182 Roundtrip, found 17 hours ago
$182
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Sat, Aug 23 from Seattle to Great Falls, returning Sun, Aug 24, priced at $182 found 17 hours ago
Delta
Sat, Sep 20 - Tue, Sep 23
SEA
Seattle
GTF
Great Falls
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 20 from Seattle to Great Falls, returning Tue, Sep 23, priced at $192 found 1 day ago
Alaska Airlines
Thu, Oct 9 - Mon, Oct 13
SEA
Seattle
GTF
Great Falls
$192 Roundtrip, found 11 hours ago
$192
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Thu, Oct 9 from Seattle to Great Falls, returning Mon, Oct 13, priced at $192 found 11 hours ago
Alaska Airlines
Tue, Sep 9 - Sat, Sep 13
SEA
Seattle
GTF
Great Falls
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Seattle to Great Falls, returning Sat, Sep 13, priced at $204 found 1 day ago
Delta
Sat, Aug 23 - Sat, Aug 30
SEA
Seattle
GTF
Great Falls
$205 Roundtrip, found 8 hours ago
$205
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Aug 23 from Seattle to Great Falls, returning Sat, Aug 30, priced at $205 found 8 hours ago
United
Sat, Sep 27 - Mon, Sep 29
SEA
Seattle
GTF
Great Falls
$462 Roundtrip, found 3 days ago
$462
Roundtrip
found 3 days ago
Select United flight, departing Sat, Sep 27 from Seattle to Great Falls, returning Mon, Sep 29, priced at $462 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Great Falls (GTF)

February is typically the cheapest month to fly

From $136 - $373 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Great Falls (GTF)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Great Falls Intl.
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$151
Distance
510 mi
Average flight time
1 hour 33 mins

Seattle to Great Falls Flights

The cheapest times to fly from Seattle to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Great Falls are during the month of October. You can find some of the cheapest flights from Seattle to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Great Falls

Sunday is one of the best days to book for cheap flights from Seattle to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF) cost?
You can pick up cheap return tickets starting from $162 from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SEA on August 5 2025 and touching down at GTF. The price was last updated on July 11 2025 and has not changed since.
What is the cheapest month to fly from SEA to GTF?
The cheapest flights from SEA to GTF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
When flying out of Seattle - Tacoma Intl. Airport (SEA), you can take a direct flight to Great Falls Intl. Airport (GTF) with Alaska Airlines.
What is the cheapest airline that flies from SEA to GTF?
At the moment, the cheapest carrier operating one-way flights from SEA to GTF is Alaska Airlines. You can book a seat on this route from $99. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on October 4 2025. Prices were last updated on July 11 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
On average, there is just 1 nonstop flight departing from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF) per day. If this doesn't work for you, check out flights with a layover. Simply filter your search results on Expedia to include one or more stops to discover the next best option.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
The 1 PM departures from SEA to GTF are the top choice for many travelers. Greater demand means you'll likely pay more for these departures. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from SEA to GTF?
Friday has the most flights from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF). Consider traveling on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
Hop on the earliest flight at around 1:39PM UTC-8, departing from Seattle - Tacoma Intl. Airport (SEA). You'll be flying for approximately 1h 34m, reaching Great Falls Intl. Airport (GTF) at approximately 4:13PM UTC-7.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
It takes approximately 1 hour and 34 minutes to cover the 510 mi from SEA to GTF.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Great Falls from Seattle - Tacoma Intl. Airport (SEA)?
Compare your flight options from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF). This is the only airport in Great Falls you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF) last-minute?
Last-minute fares from SEA to GTF are generally more expensive. For the lowest prices, start looking for flights well ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a SEA to GTF flight and hotel package?
Securing a SEA to GTF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our impressive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Great Falls Intl. Airport (GTF)?
In most cases, you're able to reschedule or cancel your SEA to GTF flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.