Seattle

$81+ Cheap flights from Montana to Seattle (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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — SEA
Jun 17 — Jun 241
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Cheap flight deals from Montana to Seattle

Cheapest flights from Montana to Seattle
Explore the most affordable flight options available from Montana to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2026.

This Alaska Airlines deal was found by Cheapflights users on 5/13. 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 6/34:43 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Sat 6/61:30 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Deal found 5/13$177
This Alaska Airlines deal was found by Cheapflights users on 5/16. 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.
Fri 6/54:43 pm
HLN
-
SEA
Nonstop1h 50m
Alaska Airlines
Sat 6/61:30 pm
SEA
-
HLN
Nonstop1h 36m
Alaska Airlines
Deal found 5/16$187
This Trip.com deal was found by Cheapflights users on 5/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:02 pm
MSO
-
SEA
Nonstop1h 33m
Alaska Airlines
Tue 6/99:28 pm
SEA
-
MSO
Nonstop1h 31m
Alaska Airlines
Deal found 5/13$193
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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 6/38:02 pm
MSO
-
SEA
Nonstop1h 33m
Alaska Airlines
Sat 6/69:28 pm
SEA
-
MSO
Nonstop1h 31m
Alaska Airlines
Deal found 5/13$197
This Alaska Airlines deal was found by Cheapflights users on 5/16. 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 6/66:52 pm
GTF
-
SEA
Nonstop1h 46m
Alaska Airlines
Sun 6/73:36 pm
SEA
-
GTF
Nonstop1h 36m
Alaska Airlines
Deal found 5/16$197
This Expedia deal was found by Cheapflights users on 5/14. 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.
Thu 6/43:39 pm
MSO
-
SEA
Nonstop1h 37m
Alaska Airlines
Sat 6/69:28 pm
SEA
-
MSO
Nonstop1h 31m
Alaska Airlines
Deal found 5/14$207
This Delta deal was found by Cheapflights users on 5/13. 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 6/68:00 am
BZN
-
SEA
Nonstop1h 55m
Delta
Sun 6/77:59 pm
SEA
-
BZN
Nonstop1h 49m
Delta
Deal found 5/13$207
This Expedia deal was found by Cheapflights users on 5/14. 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.
Thu 6/43:39 pm
MSO
-
SEA
Nonstop1h 37m
Alaska Airlines
Sun 6/79:50 am
SEA
-
MSO
Nonstop1h 26m
Alaska Airlines
Deal found 5/14$217
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 6/57:59 pm
BZN
-
SEA
Nonstop2h 01m
Alaska Airlines
Mon 6/812:55 pm
SEA
-
BZN
Nonstop1h 37m
Alaska Airlines
Deal found 5/14$217
This Expedia deal was found by Cheapflights users on 5/16. 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 6/511:33 am
FCA
-
SEA
Nonstop1h 32m
Alaska Airlines
Tue 6/99:35 pm
SEA
-
FCA
Nonstop1h 23m
Alaska Airlines
Deal found 5/16$227
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:25 am
MSO
-
SEA
1 stop25h 11m
Multiple Airlines
Sat 6/68:20 pm
SEA
-
MSO
1 stop12h 15m
Multiple Airlines
Deal found 5/15$235
This Orbitz deal was found by Cheapflights users on 5/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:14 pm
FCA
-
SEA
1 stop3h 40m
Alaska Airlines
Sun 6/78:30 am
SEA
-
FCA
Nonstop1h 21m
Alaska Airlines
Deal found 5/13$237

Find flight deals from Montana to Seattle

Keep the following information in mind while searching for Montana to Seattle flight deals. Data was last updated May 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Alaska Airlines)

One-way from

$81
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$248

Good round-trip deal

$227 or less

Good one-way deal

$154 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Seattle/Tacoma Intl flights.
From Montana to Seattle/Tacoma Intl
One-way flight from Montana to Seattle/Tacoma Intl
Highest demand for flights based on searches. 22% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Montana to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Montana to Seattle/Tacoma Intl.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana 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 May 18, 2026.
Use the filters below to find and compare flights from Montana to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaSeattle

HLN - SEA

HLNSEA

Helena

Sat 6/6

4:43 pm-5:33 pm

Nonstop1h 50m

Seattle/Tacoma Intl

Tue 6/9

1:30 pm-4:06 pm

Nonstop1h 36m

$177

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sat 6/6

2:03 pm-2:36 pm

Nonstop1h 33m

Seattle/Tacoma Intl

Tue 6/9

9:28 pm-11:59 pm

Nonstop1h 31m

$197

BozemanSeattle

BZN - SEA

BZNSEA

Bozeman Gallatin Field

Sat 6/6

8:00 am-8:55 am

Nonstop1h 55m

Seattle/Tacoma Intl

Sun 6/7

7:59 pm-10:48 pm

Nonstop1h 49m

$207
Quickest round-trip

KalispellSeattle

FCA - SEA

FCASEA

Kalispell Glacier Park

Fri 6/5

5:40 pm-6:12 pm

Nonstop1h 32m

Seattle/Tacoma Intl

Mon 6/8

8:30 am-10:51 am

Nonstop1h 21m

$267

KalispellSeattle

FCA - SEA

FCASEA

Kalispell Glacier Park

Fri 6/5

6:07 pm-12:10 am

1 stop7h 03m

Seattle/Tacoma Intl

Mon 6/8

11:05 am-5:30 pm

1 stop5h 25m

$297

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Wed 9/16

4:13 pm-5:00 pm

Nonstop1h 47m

Seattle/Tacoma Intl

Fri 10/16

7:28 pm-9:59 pm

Nonstop1h 31m

$297

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sun 6/14

7:03 am-7:45 am

Nonstop1h 42m

Seattle/Tacoma Intl

Sun 6/21

9:27 pm-11:56 pm

Nonstop1h 29m

$297

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Fri 6/19

5:00 pm-5:41 pm

Nonstop1h 41m

Seattle/Tacoma Intl

Sun 6/21

9:27 pm-11:56 pm

Nonstop1h 29m

$297

BozemanSeattle

BZN - SEA

BZNSEA

Bozeman Gallatin Field

Tue 6/2

7:59 pm-9:00 pm

Nonstop2h 01m

Seattle/Tacoma Intl

Tue 6/9

7:59 pm-10:42 pm

Nonstop1h 43m

$297

BozemanSeattle

BZN - SEA

BZNSEA

Bozeman Gallatin Field

Tue 6/2

4:04 pm-5:00 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Tue 6/9

5:30 am-11:18 am

1 stop4h 48m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Montana to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Montana 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 Montana to Seattle

How far ahead should I book a flight from Montana to Seattle?

The price you pay for your flight from Montana to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Montana to Seattle?

Currently, March is the cheapest month in which you can book a flight from Montana to Seattle (average of $48). Flying from Montana to Seattle in August is currently the most expensive (average of $149). 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 MT to SEA?

Find hourly flight availability from Montana 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 May 18, 2026.

It’s typically best to fly out from Montana to Seattle in the afternoon. Doing so could potentially save you 57% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Montana to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Montana to Seattle. Price data was last updated on May 9, 2026.

Travelers seeking maximum savings on their Montana to Seattle flight should consider departing on Tuesday afternoons 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.

Weekly flight availability from Montana to Seattle

Explore weekly flight availability from Montana 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 May 18, 2026.

The most flights from USMT to SEA are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Montana to Seattle?

Related info for your journey

Find useful and relevant information for your journey from Montana to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from Montana?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Montana to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How popular is this Montana to Seattle flight route?

  • How long is the flight from Montana to Seattle?

    Alaska Airlines, Delta, and United Airlines can get you from Montana to Seattle in just under 1h 50m. Your travel time can differ by up to 24h 43m. The distance from Montana to Seattle is about 489 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Montana to Seattle one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $58. Users have also found prices from $68 and $78 on Alaska Airlines and Hawaiian Airlines, respectively.

  • What are the most popular routes from Montana to Seattle?

  • What are the most reliable airlines from Montana to Seattle?

    Consider Korean Air (98%), Japan Airlines (95%) or WestJet (94%) when booking your flight. These represent the most reliable airlines when flying from Montana to Seattle.

  • What are the cheapest flights from Montana to Seattle?

    Looking for the cheapest flight from Montana to Seattle? While on average our users pay $349, our data indicates the cheapest price to be $98. The most popular route (Bozeman Gallatin Field - Seattle/Tacoma Intl), is priced around $207.

  • Can I find deals for flights from Montana to Seattle that include hotel bookings?

    Yes. In addition to deals on Montana to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Seattle.

  • Can I find deals for business class flights from Montana to Seattle?

    Yes. Cheapflights offers flight deals from Montana 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 Montana to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Montana to Seattle (average of $48). Flying from Montana to Seattle in August is currently the most expensive (average of $149). 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
Tacoma
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montana to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Montana to Seattle

Discover the top 3 airlines that operate flights from Montana 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 May 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$282FlexibilityNo cancel feeOn-time85%
DeltaCheapest$103Average$223FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$127Average$268FlexibilityNo cancel feeOn-time75%

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