$223 Cheap Flights from Seattle (SEA) to Butte (BTM)

View $223 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Butte, MT (BTM-Bert Mooney)

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Cheap Flights from Seattle to Butte (SEA-BTM)

Prices were available within the past 7 days and start at $223 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Sep 3 - Sat, Sep 6
SEA
Seattle
BTM
Butte
$224 Roundtrip, found 4 hours ago
$224
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Sep 3 from Seattle to Butte, returning Sat, Sep 6, priced at $224 found 4 hours ago
Delta
Wed, Nov 5 - Wed, Nov 26
SEA
Seattle
BTM
Butte
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Nov 5 from Seattle to Butte, returning Wed, Nov 26, priced at $244 found 3 days ago
Delta
Tue, Jul 15 - Sat, Jul 26
SEA
Seattle
BTM
Butte
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 15 from Seattle to Butte, returning Sat, Jul 26, priced at $259 found 1 day ago
Delta
Sat, Sep 6 - Mon, Sep 8
SEA
Seattle
BTM
Butte
$263 Roundtrip, found 4 hours ago
$263
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Sep 6 from Seattle to Butte, returning Mon, Sep 8, priced at $263 found 4 hours ago
Delta
Thu, Nov 6 - Wed, Nov 26
SEA
Seattle
BTM
Butte
$264 Roundtrip, found 4 days ago
$264
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 6 from Seattle to Butte, returning Wed, Nov 26, priced at $264 found 4 days ago
Delta
Wed, Jul 16 - Sat, Jul 19
SEA
Seattle
BTM
Butte
$274 Roundtrip, found 2 hours ago
$274
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Jul 16 from Seattle to Butte, returning Sat, Jul 19, priced at $274 found 2 hours ago
Delta
Fri, Nov 7 - Wed, Nov 26
SEA
Seattle
BTM
Butte
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Nov 7 from Seattle to Butte, returning Wed, Nov 26, priced at $283 found 3 days ago
United
Wed, Jul 30 - Fri, Aug 8
SEA
Seattle
BTM
Butte
$284 Roundtrip, found 3 days ago
$284
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 30 from Seattle to Butte, returning Fri, Aug 8, priced at $284 found 3 days ago
Delta
Tue, Jul 15 - Mon, Jul 28
SEA
Seattle
BTM
Butte
$289 Roundtrip, found 5 days ago
$289
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jul 15 from Seattle to Butte, returning Mon, Jul 28, priced at $289 found 5 days ago
Alaska Airlines
Fri, Aug 1 - Sun, Aug 3
PAE
Seattle
BTM
Butte
$890 Roundtrip, found 3 days ago
$890
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Aug 1 from Seattle to Butte, returning Sun, Aug 3, priced at $890 found 3 days ago
Flights from Seattle (SEA) to Butte (BTM)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Bert Mooney
Airlines serving
Delta, United
Roundtrip price
$224
Distance
475 mi

Seattle to Butte Flights

The cheapest times to fly from Seattle to Butte

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 Butte are during the month of September. You can find some of the cheapest flights from Seattle to Butte with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Butte

Sunday is one of the best days to book for cheap flights from Seattle to Butte: 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 Butte

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 Butte in 2025. You can also book with separate airlines for your outbound and return journeys, from $223 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 Butte 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 Butte 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 Bert Mooney Airport (BTM) cost?
Discover the latest flight deals from SEA to BTM by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to BTM?
The cheapest flights from SEA to BTM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to BTM?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to BTM. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM)?
There are no daily nonstop flights departing from Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SEA to BTM?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of being 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 Butte from Seattle - Tacoma Intl. Airport (SEA)?
Explore your flight options from Seattle - Tacoma Intl. Airport (SEA) to Helena Regional Airport (HLN). This is the only airport in Butte you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM) last-minute?
Booking your ticket from SEA to BTM right before your journey is typically more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a SEA to BTM flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to BTM flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Bert Mooney Airport (BTM)?
Typically, you can modify or cancel your SEA to BTM flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.