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Big Sky

$78+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BZN
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Big Sky are usually found in April or January, booked 60 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap 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 julio 30, 2025.

Round-trip from

$155
(Trip.com)

One-way from

$78
(Delta)

Popular in

October

Cheapest in

April

Average price

$287
From Seattle/Tacoma Intl to Big Sky
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One-way flight from Seattle/Tacoma Intl to Big Sky
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julio 30, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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.
sáb. 9/1311:24 amSEA - BZN
Nonstop1h 50mAlaska Airlines
sáb. 9/203:08 pmBZN - SEA
Nonstop2h 01mAlaska Airlines
Deal found 7/30$155
This Delta deal was found by Cheapflights users on 7/30. 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.
mar. 9/167:40 pmSEA - BZN
Nonstop1h 43mDelta
sáb. 9/205:28 pmBZN - SEA
Nonstop2h 03mDelta
Deal found 7/30$157
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
sáb. 9/138:00 amSEA - BZN
Nonstop1h 46mHawaiian Airlines
sáb. 9/201:54 pmBZN - SEA
1 stop4h 56mHawaiian Airlines
Deal found 7/30$158
This Southwest deal was found by Cheapflights users on 7/28. 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.
sáb. 9/611:55 amSEA - BZN
2 stops8h 35mSouthwest
mar. 9/912:55 pmBZN - SEA
1 stop8h 00mSouthwest
Deal found 7/28$242
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/278:45 amSEA - BZN
1 stop5h 29mUnited Airlines
sáb. 8/304:20 pmBZN - SEA
1 stop5h 57mUnited Airlines
Deal found 7/28$268

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 julio 30, 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

sáb. 9/13

11:24 am-2:14 pm

Nonstop1h 50m

Bozeman Gallatin Field

sáb. 9/20

3:08 pm-4:09 pm

Nonstop2h 01m

$155

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mar. 9/16

7:40 pm-10:23 pm

Nonstop1h 43m

Bozeman Gallatin Field

sáb. 9/20

5:28 pm-6:31 pm

Nonstop2h 03m

$157

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

sáb. 9/13

8:00 am-10:46 am

Nonstop1h 46m

Bozeman Gallatin Field

sáb. 9/20

1:54 pm-5:50 pm

1 stop4h 56m

$158

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

sáb. 9/6

11:55 am-9:30 pm

2 stops8h 35m

Bozeman Gallatin Field

mar. 9/9

12:55 pm-7:55 pm

1 stop8h 00m

$242

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mié. 8/27

8:45 am-3:14 pm

1 stop5h 29m

Bozeman Gallatin Field

sáb. 8/30

4:20 pm-9:17 pm

1 stop5h 57m

$268

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mar. 8/19

7:40 pm-10:26 pm

Nonstop1h 46m

$78

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mar. 9/9

7:50 am-1:14 pm

1 stop4h 24m

$83

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mié. 8/27

7:56 am-1:14 pm

1 stop4h 18m

$87

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

sáb. 9/6

11:55 am-9:30 pm

2 stops8h 35m

$124

SeattleBozeman

SEA - BZN

SEABZN

Seattle/Tacoma Intl

mar. 8/26

12:46 am-3:50 pm

1 stop14h 04m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 25, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Big Sky, you should look to book at least 60 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, October is the cheapest month in which you can book a flight from Seattle to Big Sky (average of $371). Flying from Seattle to Big Sky in May is currently the most expensive (average of $478). 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 julio 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Big Sky as you normally would.

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 Monday afternoons when fares are most often at their lowest. Wednesday 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 julio 30, 2025.

The most flights from SEA to BS1 are scheduled on a Monday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 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 julio 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 23 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 5 times in the past calendar month.

  • 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), Hawaiian Airlines ($83), and Alaska Airlines ($87).

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

    Consider Virgin Atlantic (93%), KLM (90%) or SkyWest Airlines (86%) 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 $260, our data indicates the cheapest price to be $88. The most popular route (Seattle/Tacoma Intl - Bozeman Gallatin Field), is priced around $157.

  • 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, October is the cheapest month in which you can book a flight from Seattle to Big Sky (average of $371). Flying from Seattle to Big Sky in May is currently the most expensive (average of $478). 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.

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$128Average$257FlexibilityNo cancel feeOn-time85%
DeltaCheapest$128Average$446FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$282FlexibilityNo cancel feeOn-time75%

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