HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Big Sky

$59+ Cheap flights from Seattle (SEA) to Big Sky, MT

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BZN
1月 14 — 1月 211
週三 1/14
週三 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Big Sky with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Big Sky are usually found in January or October, booked 50 days in advance, depart on a Monday or Friday and return on a Friday

Cheap flight deals from Seattle to Big Sky

Cheapest flights from Seattle to Big Sky
Explore the most affordable flight options available from Seattle to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12月 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 12/319:20 pmSEA - BZN
Nonstop1h 39mAlaska Airlines
週一 1/56:09 amBZN - SEA
Nonstop2h 11mAlaska Airlines
Deal found 12/13$226
This Delta deal was found by Cheapflights users on 12/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週日 12/287:45 pmSEA - BZN
Nonstop1h 46mDelta
週二 1/63:00 pmBZN - SEA
Nonstop2h 17mDelta
Deal found 12/12$227
This Delta deal was found by Cheapflights users on 12/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 12/305:25 amSEA - BZN
1 stop4h 52mDelta
週二 1/63:00 pmBZN - SEA
Nonstop2h 17mDelta
Deal found 12/12$237
This Alaska Airlines deal was found by Cheapflights users on 12/13. 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.
週三 12/319:20 pmSEA - BZN
Nonstop1h 39mAlaska Airlines
週日 1/46:09 amBZN - SEA
Nonstop2h 11mAlaska Airlines
Deal found 12/13$247
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 12/304:59 pmSEA - BZN
1 stop4h 29mAlaska Airlines
週日 1/46:09 amBZN - SEA
Nonstop2h 11mAlaska Airlines
Deal found 12/12$257
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週日 12/289:20 pmSEA - BZN
Nonstop1h 39mAlaska Airlines
週一 1/51:43 pmBZN - SEA
1 stop6h 03mAlaska Airlines
Deal found 12/12$272
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 12/305:48 pmSEA - BZN
1 stop3h 40mAlaska Airlines
週一 1/51:43 pmBZN - SEA
1 stop6h 03mAlaska Airlines
Deal found 12/12$282
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 12/3011:20 amSEA - BZN
Nonstop1h 43mAlaska Airlines
週六 1/36:09 amBZN - SEA
Nonstop2h 11mAlaska Airlines
Deal found 12/12$297

Find flight deals from Seattle to Big Sky

Keep the following information in mind while searching for Seattle to Big Sky flight deals. Data was last updated 12月 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$107
(Kiwi.com)

One-way from

$59
(Delta)

Popular in

March

Cheapest in

January

Average price

$257
Provider with most accurate pricing for Seattle/Tacoma Intl-Bozeman Gallatin Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bozeman Gallatin Field flights.
Search Deals
From Seattle/Tacoma Intl to Big Sky
Search Deals
One-way flight from Seattle/Tacoma Intl to Big Sky
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Big Sky 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 12月 15, 2025.
Use the filters below to find and compare flights from Seattle to Big Sky that are best for you.

Fly from

Seattle

Fly to

Big Sky

Route

Depart

Return

Price

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週四 1/22

8:37 am-11:20 am

Nonstop1h 43m

Bozeman Gallatin Field

週六 1/31

3:03 pm-4:05 pm

Nonstop2h 02m

$117

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週三 3/4

11:40 am-2:22 pm

Nonstop1h 42m

Bozeman Gallatin Field

週一 3/9

3:19 pm-4:20 pm

Nonstop2h 01m

$117

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週五 1/23

7:45 pm-10:27 pm

Nonstop1h 42m

Bozeman Gallatin Field

週六 1/31

3:00 pm-4:17 pm

Nonstop2h 17m

$117

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週二 1/13

11:36 am-2:20 pm

Nonstop1h 44m

Bozeman Gallatin Field

週二 1/20

3:00 pm-4:17 pm

Nonstop2h 17m

$117

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週六 2/28

8:12 am-10:53 am

Nonstop1h 41m

Bozeman Gallatin Field

週二 3/3

3:02 pm-4:06 pm

Nonstop2h 04m

$127

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週五 1/23

10:20 am-3:23 pm

1 stop4h 03m

Bozeman Gallatin Field

週六 1/31

11:22 am-12:24 pm

Nonstop2h 02m

$127

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週一 1/26

5:00 am-11:00 am

1 stop5h 00m

Bozeman Gallatin Field

週四 1/29

3:00 pm-4:17 pm

Nonstop2h 17m

$127

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週一 1/26

11:27 am-2:09 pm

Nonstop1h 42m

Bozeman Gallatin Field

週四 1/29

1:46 pm-6:33 pm

1 stop5h 47m

$127

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週四 2/5

4:55 pm-11:17 pm

1 stop5h 22m

Bozeman Gallatin Field

週二 2/10

7:23 am-8:38 am

Nonstop2h 15m

$127

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

週三 1/14

11:27 am-2:09 pm

Nonstop1h 42m

$59

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 19 results
1
2

Best time to book a flight from Seattle to Big Sky

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Big Sky. Price data was last updated on December 12, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Big Sky, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Big Sky (average of $97). Flying from Seattle to Big Sky in June is currently the most expensive (average of $177). 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 SEA to BS1?

Find hourly flight availability from Seattle to Big Sky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12月 15, 2025.

When flying from Seattle to Big Sky, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 53% versus a flight in the morning.

What is the cheapest day to fly from Seattle to Big Sky?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Big Sky. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Big Sky flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Big Sky

Explore weekly flight availability from Seattle to Big Sky. 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 12月 15, 2025.

The most flights from SEA to BS1 are scheduled on a Monday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Big Sky

Get insights into the airlines that provide service to Big Sky. 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 Big Sky. Reviews last updated 12月 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Big Sky to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,452 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Big Sky. 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 from for flights from Seattle to Big Sky?

    If you book a flight to Big Sky from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 12 flights from Seattle/Tacoma Intl to Big Sky per day from 3 different airlines.

  • How popular is this Seattle to Big Sky flight route?

    Flights from Seattle/Tacoma Intl to Big Sky have been viewed 9 times in the past calendar month.

  • How long is the flight from Seattle to Big Sky?

    There are many flights that can get you from Seattle to Big Sky in 1h 42m. Fly via Alaska Airlines or Delta to get the fastest option. Seattle and Big Sky are separated by a distance of 541 mi. Generally, flights for this route are nonstop.

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

    The cheapest airlines for a one-way flight from Seattle to Big Sky are Delta ($78), Alaska Airlines ($88), and Hawaiian Airlines ($108).

  • What are the most reliable airlines from Seattle to Big Sky?

    Consider Aeromexico (100%), Virgin Atlantic (98%) or Horizon Air (96%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Big Sky.

  • What are the cheapest flights from Seattle to Big Sky?

    Looking for the cheapest flight from Seattle to Big Sky? While on average our users pay $225, our data indicates the cheapest price to be $68. The most popular route (Seattle/Tacoma Intl - Bozeman Gallatin Field), is priced around $107.

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

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

  • How can I find direct flights from Seattle to Big Sky?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Big Sky 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 Seattle to Big Sky?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Big Sky (average of $97). Flying from Seattle to Big Sky in June is currently the most expensive (average of $177). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Big Sky

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Bozeman flights
Seattle to Billings flights
Seattle to Kalispell flights
Seattle to Missoula flights
Seattle to Great Falls flights
Portland to Missoula flights
Portland to Bozeman flights
Seattle to Helena flights
Portland to Kalispell flights
Spokane to Bozeman flights
Portland to Billings flights
Pasco to Billings flights
Portland to Helena flights
Portland to Great Falls flights
Pasco to Helena flights
Seattle to Butte flights
Seattle to Cody flights
Spokane to Kalispell flights
Spokane to Missoula flights
Spokane to Great Falls flights
Spokane to Billings flights
Portland to Butte flights
Pasco to Missoula flights
Pasco to Cody flights
Portland to Cody flights
Pasco to West Yellowstone flights
Bellingham to Helena flights
Bellingham to Billings flights
Pullman to Kalispell flights
Wenatchee to Great Falls flights
Walla Walla to Missoula flights
Wenatchee to Helena flights
Bellingham to Missoula flights
Seattle to West Yellowstone flights
Yakima to Kalispell flights
Yakima to Helena flights
Yakima to Missoula flights

Top 3 airlines flying from Seattle to Big Sky

Discover the top 3 airlines that operate flights from Seattle to Big Sky. 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 12月 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$97Average$413FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$118Average$257FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$149Average$248FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.