HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Big Sky

$80+ Cheap flights from San Francisco (SFO) 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BZN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco 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 San Francisco to Big Sky are usually found in October or January, booked 80 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from San Francisco to Big Sky

Keep the following information in mind while searching for San Francisco to Big Sky flight deals. Data was last updated September 11, 2025.

Round-trip from

$217
(Hawaiian Airlines)

One-way from

$80
(Southwest)

Popular in

December

Cheapest in

October

Average price

$433
From San Francisco to Big Sky
Search Deals
One-way flight from San Francisco to Big Sky
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from San Francisco to Big Sky

Cheapest flights from San Francisco to Big Sky
Explore the most affordable flight options available from San Francisco to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 10/166:00 amSFO - BZN
1 stop3h 44mDelta
Mon 10/206:20 pmBZN - SFO
1 stop6h 23mDelta
Deal found 9/9$217
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/304:50 pmSFO - BZN
1 stop6h 20mSouthwest
Sun 11/25:00 amBZN - SFO
1 stop5h 30mSouthwest
Deal found 9/11$218
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/106:59 pmSFO - BZN
1 stop4h 05mDelta
Sat 10/1811:40 amBZN - SFO
1 stop5h 19mDelta
Deal found 9/10$223
This Southwest deal was found by Cheapflights users on 9/11. 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.
Fri 10/34:50 pmSFO - BZN
1 stop6h 20mSouthwest
Sat 10/46:45 amBZN - SFO
1 stop9h 50mSouthwest
Deal found 9/11$227
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/912:00 pmSFO - BZN
Nonstop2h 16mUnited Airlines
Sat 10/114:19 pmBZN - SFO
Nonstop2h 31mUnited Airlines
Deal found 9/10$229
This Southwest deal was found by Cheapflights users on 9/9. 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.
Thu 9/253:50 pmSFO - BZN
1 stop6h 45mSouthwest
Tue 9/305:45 pmBZN - SFO
1 stop5h 40mSouthwest
Deal found 9/9$234
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/168:00 amSFO - BZN
1 stop6h 21mAlaska Airlines
Sat 10/183:04 pmBZN - SFO
1 stop8h 25mAlaska Airlines
Deal found 9/11$235
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 11/87:37 pmSFO - BZN
1 stop13h 59mAlaska Airlines
Tue 11/115:00 amBZN - SFO
1 stop4h 55mAlaska Airlines
Deal found 9/11$236
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 9/248:00 amSFO - BZN
1 stop25h 39mMultiple Airlines
Wed 10/112:18 pmBZN - SFO
2 stops25h 59mMultiple Airlines
Deal found 9/11$237
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/24:50 pmSFO - BZN
1 stop6h 20mSouthwest
Sat 10/46:45 amBZN - SFO
1 stop9h 50mSouthwest
Deal found 9/11$239
This Southwest deal was found by Cheapflights users on 9/11. 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.
Fri 10/34:50 pmSFO - BZN
1 stop6h 20mSouthwest
Sun 10/55:10 amBZN - SFO
1 stop8h 20mSouthwest
Deal found 9/11$242
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 9/231:45 pmSFO - BZN
1 stop7h 38mDelta
Wed 10/15:30 amBZN - SFO
1 stop4h 16mDelta
Deal found 9/9$243

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 September 11, 2025.
Use the filters below to find and compare flights from San Francisco to Big Sky that are best for you.

Fly from

San Francisco

Fly to

Big Sky

Route

Depart

Return

Price

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Wed 1/7

6:00 am-2:35 pm

1 stop7h 35m

Bozeman Gallatin Field

Wed 1/14

7:25 am-1:17 pm

1 stop6h 52m

$217

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Wed 2/25

5:30 am-3:05 pm

1 stop8h 35m

Bozeman Gallatin Field

Wed 3/4

3:50 pm-10:20 pm

1 stop7h 30m

$220

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Sat 10/11

6:00 am-10:44 am

1 stop3h 44m

Bozeman Gallatin Field

Tue 10/14

6:20 pm-11:43 pm

1 stop6h 23m

$223

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Fri 10/3

4:50 pm-12:10 am

1 stop6h 20m

Bozeman Gallatin Field

Sat 10/4

6:45 am-3:35 pm

1 stop9h 50m

$227

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Wed 2/25

1:22 pm-4:39 pm

Nonstop2h 17m

Bozeman Gallatin Field

Wed 3/4

3:45 pm-11:40 pm

1 stop8h 55m

$230

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Sat 11/8

7:37 pm-10:36 am

1 stop13h 59m

Bozeman Gallatin Field

Tue 11/11

5:00 am-8:55 am

1 stop4h 55m

$236

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Sat 9/27

1:45 pm-10:23 pm

1 stop7h 38m

Bozeman Gallatin Field

Tue 9/30

7:35 am-12:45 pm

1 stop6h 10m

$243

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Thu 10/16

6:00 am-10:44 am

1 stop3h 44m

Bozeman Gallatin Field

Sun 10/19

5:35 am-9:00 am

1 stop4h 25m

$249

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Wed 11/19

7:06 pm-12:10 am

1 stop4h 04m

Bozeman Gallatin Field

Tue 11/25

5:45 am-8:56 am

1 stop4h 11m

$269

San FranciscoBozeman

SFO - BZN

SFOBZN

San Francisco

Sat 10/18

8:00 am-6:40 pm

2 stops9h 40m

Bozeman Gallatin Field

Sun 10/26

5:10 am-8:55 am

1 stop4h 45m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from San Francisco to Big Sky

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Big Sky. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to Big Sky, you should look to book at least 80 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 San Francisco to Big Sky?

Currently, October is the cheapest month in which you can book a flight from San Francisco to Big Sky (average of $371). Flying from San Francisco to Big Sky in May is currently the most expensive (average of $477). 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 SFO to BS1?

Find hourly flight availability from San Francisco 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 September 11, 2025.

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

What is the cheapest day to fly from San Francisco to Big Sky?

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

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

How much does it cost to fly round-trip from San Francisco 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 September 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from San Francisco to Big Sky. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from San Francisco 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 San Francisco to Big Sky?

    If you book a flight to Big Sky from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco. There is 1 flight from San Francisco to Big Sky per day from 6 different airlines.

  • How popular is this San Francisco to Big Sky flight route?

    Within the past month, 1 users have taken a look at flights from San Francisco to Big Sky.

  • How long is the flight from San Francisco to Big Sky?

    A quick flight from San Francisco to Big Sky can take about 2h 17m. Delta provides one of the quickest options available for as low as $230. San Francisco and Big Sky are separated by a distance of 806 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    No one likes to see their flight delayed. When booking a flight from San Francisco to Big Sky consider choosing United Airlines (88%), Air New Zealand (80%) or American Airlines (58%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to Big Sky?

    On average you can expect to pay $323 for a flight from San Francisco to Big Sky. The cheapest flight overall is $134 while the most popular route, (San Francisco - Bozeman Gallatin Field) is currently priced at $189.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to Big Sky?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Big Sky (average of $371). Flying from San Francisco to Big Sky in May is currently the most expensive (average of $477). 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 San Francisco to Big Sky

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Bozeman flights
San Francisco to Bozeman flights
Los Angeles to Kalispell flights
San Francisco to Kalispell flights
Ontario to Bozeman flights
Los Angeles to Missoula flights
Ontario to Missoula flights
Santa Ana to Bozeman flights
San Francisco to Missoula flights
Burbank to Bozeman flights
Ontario to Kalispell flights
San Diego to Bozeman flights
Sacramento to Missoula flights
Sacramento to Bozeman flights
Oakland to Bozeman flights
Long Beach to Bozeman flights
Burbank to Kalispell flights
San Diego to Kalispell flights
San Jose to Bozeman flights
Santa Ana to Kalispell flights
Santa Rosa to Bozeman flights
Oakland to Missoula flights
San Diego to Missoula flights
San Jose to Kalispell flights
Santa Ana to Billings flights
Santa Ana to Missoula flights
Los Angeles to Billings flights
Santa Barbara to Bozeman flights
San Jose to Missoula flights
Las Vegas to Bozeman flights
Oakland to Kalispell flights
Sacramento to Kalispell flights
Las Vegas to Billings flights
San Francisco to West Yellowstone flights
San Diego to Billings flights
Los Angeles to Helena flights
Fresno to Billings flights
Medford to Bozeman flights
San Francisco to Butte flights
Santa Rosa to Missoula flights
Burbank to Missoula flights
Ontario to Billings flights
San Francisco to Helena flights
Burbank to Billings flights
Fresno to Kalispell flights
Santa Barbara to Kalispell flights
Sacramento to Billings flights
Las Vegas to Missoula flights
Palm Springs to Kalispell flights
San Jose to Billings flights

Top 6 airlines flying from San Francisco to Big Sky

Discover the top 6 airlines that operate flights from San Francisco 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$208Average$401FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$214Average$456FlexibilityNo cancel feeOn-time69%
DeltaCheapest$214Average$402FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$219Average$451FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$226Average$428FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$267Average$427FlexibilityNo cancel feeOn-time71%

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.