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$127+ Cheap flights from Billings to San Francisco (BIL - SFO)

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SFO
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Billings to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$303
(Delta)

One-way from

$127
(Hawaiian Airlines)

Popular in

September

Cheapest in

April

Average price

$328
From Billings Logan Intl to San Francisco
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One-way flight from Billings Logan Intl to San Francisco
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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Billings to San Francisco

Cheapest flights from Billings to San Francisco
Explore the most affordable flight options available from Billings to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Delta deal was found by Cheapflights users on 8/17. 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.
Wed 9/246:25 amBIL - SFO
1 stop8h 20mDelta
Mon 9/294:55 pmSFO - BIL
1 stop4h 40mDelta
Deal found 8/17$303
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/187:18 pmBIL - SFO
1 stop5h 46mAlaska Airlines
Sun 9/287:00 amSFO - BIL
1 stop16h 11mAlaska Airlines
Deal found 8/16$318
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:25 amBIL - SFO
2 stops10h 23mDelta
Sun 9/285:35 amSFO - BIL
1 stop4h 18mDelta
Deal found 8/16$367
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 11/2111:37 amBIL - SFO
1 stop7h 09mAlaska Airlines
Sun 11/2310:10 pmSFO - BIL
1 stop15h 47mAlaska Airlines
Deal found 8/17$383
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 9/145:00 amBIL - SFO
1 stop5h 45mUnited Airlines
Sun 9/216:30 amSFO - BIL
1 stop5h 47mUnited Airlines
Deal found 8/17$384
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Sun 9/75:00 amBIL - SFO
1 stop7h 51mUnited Airlines
Sun 9/146:30 amSFO - BIL
1 stop5h 47mUnited Airlines
Deal found 8/18$397
This Delta deal was found by Cheapflights users on 8/18. 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.
Sun 9/75:25 amBIL - SFO
1 stop4h 39mDelta
Sun 9/145:55 amSFO - BIL
2 stops10h 44mDelta
Deal found 8/18$484

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to San Francisco 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 August 18, 2025.
Use the filters below to find and compare flights from Billings to San Francisco that are best for you.

Fly from

Billings

Fly to

San Francisco

Route

Depart

Return

Price

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Wed 9/24

6:19 pm-9:45 pm

1 stop4h 26m

San Francisco

Mon 9/29

4:55 pm-10:35 pm

1 stop4h 40m

$303

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Thu 9/18

7:18 pm-12:04 am

1 stop5h 46m

San Francisco

Sun 9/28

7:00 am-12:11 am

1 stop16h 11m

$318

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Thu 9/18

5:25 am-2:48 pm

2 stops10h 23m

San Francisco

Sun 9/28

5:35 am-10:53 am

1 stop4h 18m

$367

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Fri 11/21

11:37 am-5:46 pm

1 stop7h 09m

San Francisco

Sun 11/23

10:10 pm-2:57 pm

1 stop15h 47m

$383

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Sun 9/14

5:00 am-9:45 am

1 stop5h 45m

San Francisco

Sun 9/21

6:30 am-1:17 pm

1 stop5h 47m

$384

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Sun 9/14

5:25 am-8:46 am

1 stop4h 21m

$176

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Sun 10/12

6:00 am-10:22 am

1 stop5h 22m

$214

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

Sun 10/12

7:15 pm-10:19 am

2 stops16h 04m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Billings to San Francisco

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

What is the cheapest month to book a flight from Billings to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Billings to San Francisco (average of $276). Flying from Billings to San Francisco in June is currently the most expensive (average of $358). 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 BIL to SFO?

Find hourly flight availability from Billings to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from Billings to San Francisco is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 41% on airfare.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated August 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Billings to San Francisco by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Billings to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Billings to San Francisco?

    There are many flights that can get you from Billings to San Francisco in 4h 26m. Fly via Delta or Alaska Airlines to get the fastest option. There are 908 mi between Billings and San Francisco. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Billings to San Francisco round-trip?

    According to our current data, Alaska Airlines ($191), United Airlines ($220), and Delta ($236) offers the cheapest pricing from Billings to San Francisco. These flights start at 41% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Billings to San Francisco one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $176. Users have also found prices from $214 and $258 on Hawaiian Airlines and Alaska Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Billings to San Francisco 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 Billings to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Billings to San Francisco (average of $276). Flying from Billings to San Francisco in June is currently the most expensive (average of $358). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Mountain View
Turlock
Santa Clara
Hollister
Antioch
Watsonville
Manteca
Sunnyvale
Newark
Milpitas
Campbell
Foster City
San Leandro
Burlingame
Redwood City
Vallejo

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Top 3 airlines flying from Billings to San Francisco

Discover the top 3 airlines that operate flights from Billings to San Francisco. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$191Average$333FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$220Average$404FlexibilityNo cancel feeOn-time69%
DeltaCheapest$220Average$299FlexibilityNo cancel feeOn-timeN/A

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