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Big Sky

$69+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BZN
Mai 26 — Jun 21
Di 5/26
Di 6/2
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Big Sky are usually found in March or January, booked 82 days in advance, depart on a Monday or Saturday 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 April 26, 2026.

This Trip.com deal was found by Cheapflights users on 4/23. 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.
Mi 7/1511:29 am
SEA
-
BZN
Nonstop1h 40m
Alaska Airlines
Sa 7/183:05 pm
BZN
-
SEA
Nonstop2h 00m
Alaska Airlines
Deal found 4/23$133
This Delta deal was found by Cheapflights users on 4/20. 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.
Do 5/288:40 pm
SEA
-
BZN
Nonstop1h 41m
Delta
Mi 6/38:00 am
BZN
-
SEA
Nonstop1h 55m
Delta
Deal found 4/20$137
This Delta deal was found by Cheapflights users on 4/20. 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.
Sa 5/238:40 pm
SEA
-
BZN
Nonstop1h 41m
Delta
Di 6/26:35 pm
BZN
-
SEA
1 stop6h 35m
Delta
Deal found 4/20$147
This Delta deal was found by Cheapflights users on 4/21. 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.
Di 6/165:30 am
SEA
-
BZN
1 stop4h 48m
Delta
Mi 6/2412:13 pm
BZN
-
SEA
1 stop7h 27m
Delta
Deal found 4/21$157
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Mo 5/254:22 pm
SEA
-
BZN
Nonstop1h 43m
Alaska Airlines
Sa 5/3011:43 am
BZN
-
SEA
Nonstop2h 00m
Alaska Airlines
Deal found 4/22$167
This SmartFares deal was found by Cheapflights users on 4/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 5/234:22 pm
SEA
-
BZN
Nonstop1h 43m
Alaska Airlines
Sa 5/3011:43 am
BZN
-
SEA
Nonstop2h 00m
Alaska Airlines
Deal found 4/24$191
This Delta deal was found by Cheapflights users on 4/24. 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.
Sa 5/238:40 pm
SEA
-
BZN
Nonstop1h 41m
Delta
Fr 6/54:04 pm
BZN
-
SEA
Nonstop1h 56m
Delta
Deal found 4/24$207
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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.
Mo 5/257:59 pm
SEA
-
BZN
Nonstop1h 43m
Alaska Airlines
Fr 6/58:00 am
BZN
-
SEA
Nonstop2h 01m
Alaska Airlines
Deal found 4/20$217
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/236:25 am
SEA
-
BZN
1 stop6h 00m
Southwest
Mi 9/303:25 pm
BZN
-
SEA
1 stop8h 40m
Southwest
Deal found 4/23$222
This Delta deal was found by Cheapflights users on 4/20. 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.
So 5/248:40 pm
SEA
-
BZN
Nonstop1h 41m
Delta
Fr 6/56:35 pm
BZN
-
SEA
1 stop6h 35m
Delta
Deal found 4/20$227
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 8/196:25 am
SEA
-
BZN
1 stop6h 00m
Southwest
Mi 8/2612:55 pm
BZN
-
SEA
1 stop11h 40m
Southwest
Deal found 4/20$228

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 April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$133
(Trip.com)

One-way from

$69
(Delta)

Popular in

July

Cheapest in

March

Average price

$207
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. 12% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 26, 2026.
Use the filters below to find and compare flights from Seattle to Big Sky that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Do 6/25

7:59 pm-10:48 pm

Nonstop1h 49m

Bozeman Gallatin Field

Di 6/30

8:25 am-9:29 am

Nonstop2h 04m

$137

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Mo 7/13

5:25 am-11:17 am

1 stop4h 52m

Bozeman Gallatin Field

Fr 7/17

8:25 am-9:30 am

Nonstop2h 05m

$147
Quickest round-trip

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Sa 5/16

8:40 pm-11:21 pm

Nonstop1h 41m

Bozeman Gallatin Field

So 5/17

8:00 am-8:57 am

Nonstop1h 57m

$207

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Do 5/28

5:07 am-1:20 pm

1 stop7h 13m

Bozeman Gallatin Field

Mo 6/1

4:17 pm-11:10 pm

1 stop7h 53m

$295

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Di 5/26

8:30 am-4:29 pm

1 stop6h 59m

Bozeman Gallatin Field

Do 5/28

4:17 pm-11:32 pm

1 stop8h 15m

$297

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Sa 5/9

8:40 pm-11:21 pm

Nonstop1h 41m

Bozeman Gallatin Field

Mi 5/20

8:00 am-8:57 am

Nonstop1h 57m

$297

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Fr 7/10

5:25 am-11:17 am

1 stop4h 52m

Bozeman Gallatin Field

So 7/12

8:25 am-9:30 am

Nonstop2h 05m

$347

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Fr 5/29

12:18 pm-1:12 pm

2 stops23h 54m

Bozeman Gallatin Field

Sa 5/30

7:59 pm-9:00 pm

Nonstop2h 01m

$387

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Do 6/18

7:59 pm-10:48 pm

Nonstop1h 49m

Bozeman Gallatin Field

So 6/21

5:15 am-9:05 am

1 stop4h 50m

$387

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

Fr 7/17

5:35 pm-1:10 am

1 stop6h 35m

Bozeman Gallatin Field

Di 7/21

3:55 pm-12:40 am

2 stops9h 45m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 19 resultsSorted by cheapest first
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

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 April 26, 2026.

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 22% 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 April 25, 2026.

Travelers seeking maximum savings on their Seattle to Big Sky flight should consider departing on Monday afternoons 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 April 26, 2026.

The most flights from SEA to BS1 are scheduled on a Saturday (14 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 Seattle to Big Sky?

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 April 26, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,288 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,288 reviews
Alaska Airlines
7.9
Good
12,288 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,458 reviews
Alaska Airlines
7.9
Good
12,288 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,288 reviews

Comfort

7.8

Overall

7.9

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 11 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 4 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 49m. Fly via Delta or United Airlines to get the fastest option. Seattle and Big Sky are separated by a distance of 541 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Alaska Airlines ($78), Delta ($78), and Hawaiian Airlines ($98).

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

    Consider Horizon Air (96%), Japan Airlines (95%) or Air Tahiti Nui (93%) 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 $268, our data indicates the cheapest price to be $158. The most popular route (Seattle/Tacoma Intl - Bozeman Gallatin Field), is priced around $137.

  • 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.

See more FAQs

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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 April 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$78Average$380FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$108Average$207FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$117Average$241FlexibilityNo cancel feeOn-time75%

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