$173+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SFO
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from Billings to San Francisco 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.Cheap flight deals from Billings to San Francisco
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Cheapest flights from Billings to San FranciscoExplore 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 April 17, 2026.
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 April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Sun 5/1710:40 pm
SFO
- BIL
1 stop10h 04m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/132:41 pm
BIL
- SFO
2 stops25h 07m
Multiple Airlines
Sun 5/1710:40 pm
SFO
- BIL
1 stop10h 04m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Wed 5/203:26 pm
SFO
- BIL
2 stops40h 44m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Thu 5/219:34 am
SFO
- BIL
2 stops22h 36m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Tue 6/92:33 pm
BIL
- SFO
2 stops30h 57m
Multiple Airlines
Sat 6/207:07 pm
SFO
- BIL
1 stop20h 38m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Wed 5/203:34 pm
BIL
- SFO
1 stop5h 22m
Alaska Airlines
Sun 5/247:40 am
SFO
- BIL
1 stop6h 14m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 5/52:06 pm
BIL
- SFO
2 stops19h 58m
Alaska Airlines
Sat 5/97:40 am
SFO
- BIL
1 stop4h 46m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 4/14. 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 5/75:30 am
BIL
- SFO
1 stop4h 23m
Delta
Wed 5/131:35 pm
SFO
- BIL
2 stops8h 17m
Delta
Deal found 4/14![Delta logo]()
$356
Best flights from Billings to San FranciscoDiscover carefully curated flight deals from Billings to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Billings to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 5/133:34 pm
BIL
- SFO
1 stop5h 22m
Alaska Airlines
Sat 5/167:40 am
SFO
- BIL
1 stop6h 14m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 5/55:20 am
BIL
- SFO
1 stop4h 35m
Delta
Fri 5/85:40 am
SFO
- BIL
1 stop4h 14m
Delta
Deal found 4/12![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 5/512:47 pm
BIL
- SFO
1 stop4h 59m
Alaska Airlines
Sat 5/97:40 am
SFO
- BIL
1 stop4h 46m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 4/14. 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 5/75:30 am
BIL
- SFO
1 stop4h 23m
Delta
Wed 5/131:35 pm
SFO
- BIL
2 stops8h 17m
Delta
Deal found 4/14![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 5/166:19 pm
BIL
- SFO
1 stop5h 08m
Delta
Mon 5/185:40 am
SFO
- BIL
1 stop4h 14m
Delta
Deal found 4/15![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:43 pm
BIL
- SFO
1 stop6h 15m
Delta
Mon 6/225:25 pm
SFO
- BIL
1 stop4h 21m
Delta
Deal found 4/13![Delta logo]()
$384
Last-minute flights from Billings to San FranciscoDiscover last-minute flight deals from Billings to San Francisco. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to San Francisco. Data last updated April 17, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 5/52:06 pm
BIL
- SFO
2 stops19h 58m
Alaska Airlines
Sat 5/97:40 am
SFO
- BIL
1 stop4h 46m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 4/14. 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 5/75:30 am
BIL
- SFO
1 stop4h 23m
Delta
Wed 5/131:35 pm
SFO
- BIL
2 stops8h 17m
Delta
Deal found 4/14![Delta logo]()
$356
This Delta deal was found by Cheapflights users on 4/14. 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 5/125:30 am
BIL
- SFO
2 stops7h 59m
Delta
Sat 5/165:40 am
SFO
- BIL
1 stop4h 14m
Delta
Deal found 4/14![Delta logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/132:41 pm
BIL
- SFO
2 stops25h 07m
Multiple Airlines
Sun 5/1710:40 pm
SFO
- BIL
1 stop10h 04m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Sun 5/1710:40 pm
SFO
- BIL
1 stop10h 04m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Wed 5/203:26 pm
SFO
- BIL
2 stops40h 44m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/1510:34 am
BIL
- SFO
1 stop22h 56m
Multiple Airlines
Thu 5/219:34 am
SFO
- BIL
2 stops22h 36m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$326
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Wed 5/203:34 pm
BIL
- SFO
1 stop5h 22m
Alaska Airlines
Sat 5/307:40 am
SFO
- BIL
1 stop6h 14m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$349
One-way flights from Billings to San FranciscoSearch for one-way flight options from Billings to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Billings to San Francisco. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Trip.com deal was found by Cheapflights users on 4/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:17 pm
BIL
- SFO
1 stop5h 42m
Alaska Airlines
Deal found 4/11![Alaska Airlines logo]()
$173
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:35 am
BIL
- SFO
1 stop5h 48m
Delta
Deal found 4/13![Delta logo]()
$175
This CheapOair deal was found by Cheapflights users on 4/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:21 pm
BIL
- SFO
1 stop14h 57m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Mon 5/1810:34 am
BIL
- SFO
2 stops34h 09m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$197
This deal was found by Cheapflights users on 4/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 am
BIL
- SFO
1 stop6h 09m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Wed 9/231:37 pm
BIL
- SFO
2 stops26h 51m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:04 am
BIL
- SFO
1 stop28h 48m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$236
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:22 pm
BIL
- SFO
2 stops14h 17m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$244
This CheapOair deal was found by Cheapflights users on 4/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:01 pm
BIL
- SFO
2 stops9h 22m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$253
Find 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 April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $264 (Kiwi.com) |
One-way from | $173 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $330 |
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 April 17, 2026.
Use the filters below to find and compare flights from Billings to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Wed 5/13
3:34 pm-7:56 pm
1 stop5h 22m
San Francisco
Sat 5/16
7:40 am-2:54 pm
1 stop6h 14m
$349
Quickest round-trip
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Tue 5/5
5:20 am-8:55 am
1 stop4h 35m
San Francisco
Fri 5/8
5:40 am-10:54 am
1 stop4h 14m
$349
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Tue 5/5
12:47 pm-4:46 pm
1 stop4h 59m
San Francisco
Sat 5/9
7:40 am-1:26 pm
1 stop4h 46m
$349
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Thu 5/7
5:30 am-8:53 am
1 stop4h 23m
San Francisco
Wed 5/13
1:35 pm-10:52 pm
2 stops8h 17m
$356
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sat 5/16
6:19 pm-10:27 pm
1 stop5h 08m
San Francisco
Mon 5/18
5:40 am-10:54 am
1 stop4h 14m
$369
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Thu 6/11
6:43 pm-11:58 pm
1 stop6h 15m
San Francisco
Mon 6/22
5:25 pm-10:46 pm
1 stop4h 21m
$384
Cheapest one-way
Quickest one-way
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Tue 8/4
5:18 am-8:51 am
1 stop4h 33m
$175
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Fri 9/25
7:29 pm-11:38 pm
1 stop5h 09m
$175
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sat 5/23
6:19 pm-10:27 pm
1 stop5h 08m
$175
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Wed 9/23
11:35 am-4:23 pm
1 stop5h 48m
$175
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Billings to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to San Francisco in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Billings-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BIL-SFO
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, September is the cheapest month in which you can book a flight from Billings to San Francisco (average of $254). Flying from Billings to San Francisco in December is currently the most expensive (average of $457). 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.
How much does it cost to fly round-trip from Billings to San Francisco?
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 April 17, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Delta 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.
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Cruz
Santa Clara
Livermore
Rancho Cordova
San Bruno
Watsonville
San Ramon
Union City
Emeryville
Newark
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
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Billings and San Francisco flights
Browse other Billings and San Francisco flight options. Last updated on April 17, 2026.
Other flights from Billings
Browse through other flights departing from Billings. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Top 2 airlines flying from Billings to San Francisco
Discover the top 2 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$244 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$254 | Average$283 | FlexibilityNo cancel fee | On-time75% |