$193+ Cheap flights from San Francisco to Billings (SFO - BIL)
This is the cheapest round-trip 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.
SFO — BIL
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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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
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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 San Francisco to Billings
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Best
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Cheapest flights from San Francisco to BillingsExplore the most affordable flight options available from San Francisco to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
Explore the most affordable flight options available from San Francisco to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Thu 9/2410:24 pm -
1 stop16h 57m
Mon 9/285:22 pm -
1 stop26h 02m
Deal found 8/13![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:24 pm -
1 stop16h 57m
Mon 9/145:22 pm -
1 stop15h 52m
Deal found 8/15![Multiple Airlines logo]()
$256
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:23 am -
1 stop6h 39m
Wed 9/303:42 pm -
1 stop18h 25m
Deal found 8/14![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:43 am -
1 stop6h 21m
Wed 11/43:32 pm -
1 stop26h 12m
Deal found 8/15![Alaska Airlines logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:53 pm -
1 stop13h 47m
Sat 9/196:14 am -
1 stop17h 36m
Deal found 8/13![Alaska Airlines logo]()
$382
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:46 pm -
1 stop13h 39m
Tue 10/133:44 pm -
1 stop5h 03m
Deal found 8/15![Alaska Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 8/13. 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.
Sat 9/266:23 am -
2 stops10h 25m
Tue 9/295:20 am -
2 stops15h 58m
Deal found 8/13![Delta logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am -
1 stop15h 29m
Tue 9/297:29 pm -
1 stop19h 58m
Deal found 8/13![Alaska Airlines logo]()
$396
Best flights from San Francisco to BillingsDiscover carefully curated flight deals from San Francisco to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
Discover carefully curated flight deals from San Francisco to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:43 am -
1 stop6h 21m
Wed 11/43:32 pm -
1 stop26h 12m
Deal found 8/15![Alaska Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 8/13. 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.
Sat 9/129:55 am -
1 stop6h 53m
Sun 9/205:20 am -
1 stop4h 40m
Deal found 8/13![Delta logo]()
$427
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:22 pm -
1 stop15h 18m
Sun 9/136:14 am -
1 stop5h 45m
Deal found 8/16![Alaska Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 8/13. 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 9/249:30 am -
2 stops12h 04m
Sun 9/275:20 am -
1 stop4h 40m
Deal found 8/13![Delta logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:21 pm -
1 stop16h 10m
Sat 9/126:14 am -
1 stop5h 45m
Deal found 8/13![Alaska Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/2410:06 am -
2 stops12h 23m
Mon 9/287:29 pm -
1 stop5h 11m
Deal found 8/11![Alaska Airlines logo]()
$436
Last-minute flights from San Francisco to BillingsDiscover last-minute flight deals from San Francisco to Billings. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Billings. Data last updated August 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:24 pm -
1 stop16h 57m
Mon 9/145:22 pm -
1 stop15h 52m
Deal found 8/15![Multiple Airlines logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:53 pm -
1 stop13h 47m
Sat 9/196:14 am -
1 stop17h 36m
Deal found 8/13![Alaska Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Thu 9/2410:24 pm -
1 stop16h 57m
Mon 9/285:22 pm -
1 stop26h 02m
Deal found 8/13![Multiple Airlines logo]()
$193
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:23 am -
1 stop6h 39m
Wed 9/303:42 pm -
1 stop18h 25m
Deal found 8/14![Alaska Airlines logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am -
1 stop15h 29m
Tue 9/297:29 pm -
1 stop19h 58m
Deal found 8/13![Alaska Airlines logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/247:00 am -
1 stop15h 29m
Mon 9/286:14 am -
1 stop18h 26m
Deal found 8/11![Alaska Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop11h 49m
Tue 9/296:14 am -
1 stop17h 45m
Deal found 8/13![Alaska Airlines logo]()
$391
One-way flights from San Francisco to BillingsSearch for one-way flight options from San Francisco to Billings. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
Search for one-way flight options from San Francisco to Billings. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This Priceline deal was found by Cheapflights users on 8/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:26 pm -
1 stop7h 03m
Deal found 8/13![Alaska Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/211:00 pm -
3 stops33h 29m
Deal found 8/13![Multiple Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:53 pm -
1 stop10h 14m
Deal found 8/12![American Airlines logo]()
$444
This Priceline deal was found by Cheapflights users on 8/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:56 am -
1 stop4h 45m
Deal found 8/11![Alaska Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 8/216:00 am -
3 stops34h 41m
Deal found 8/12![Multiple Airlines logo]()
$1,031
Find flight deals from San Francisco to Billings
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Billings (BIL). 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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $193 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $549 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Billings 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 16, 2026.
Use the filters below to find and compare flights from San Francisco to Billings that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Sat 10/31
7:43 am-3:04 pm
1 stop6h 21m
Billings Logan Intl
Wed 11/4
3:32 pm-4:44 pm
1 stop26h 12m
$353
Quickest round-trip
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Sat 9/12
9:55 am-5:48 pm
1 stop6h 53m
Billings Logan Intl
Sun 9/20
5:20 am-9:00 am
1 stop4h 40m
$427
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Fri 9/11
7:22 pm-11:40 am
1 stop15h 18m
Billings Logan Intl
Sun 9/13
6:14 am-10:59 am
1 stop5h 45m
$427
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Sat 9/5
6:21 pm-11:31 am
1 stop16h 10m
Billings Logan Intl
Sat 9/12
6:14 am-10:59 am
1 stop5h 45m
$427
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Thu 9/24
10:06 am-11:29 pm
2 stops12h 23m
Billings Logan Intl
Mon 9/28
7:29 pm-11:40 pm
1 stop5h 11m
$436
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Thu 9/24
9:30 am-10:34 pm
2 stops12h 04m
Billings Logan Intl
Sun 9/27
5:20 am-9:00 am
1 stop4h 40m
$466
Cheapest one-way
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Mon 9/21
3:26 pm-11:29 pm
1 stop7h 03m
$214
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Mon 9/21
1:00 pm-11:29 pm
3 stops33h 29m
$373
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Fri 8/21
10:53 pm-10:07 am
1 stop10h 14m
$444
Quickest one-way
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Fri 8/21
11:56 am-5:41 pm
1 stop4h 45m
$459
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Billings
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 San Francisco to Billings in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Billings flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Billings 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 San Francisco-Billings 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 San Francisco to Billings
Have a flexible travel schedule? Discover the best time to fly to Billings from San Francisco with our price prediction graph.
SFO-BIL
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 Billings
What is the cheapest month to book a flight from San Francisco to Billings?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Billings (average of $258). Flying from San Francisco to Billings in December is currently the most expensive (average of $614). 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 San Francisco to Billings?
Airfare is below average for this route at the moment.
San Francisco to Billings flights typically cost between $348 and $658 in September.The cheapest round-trip price found within the last 5 days was $193 on Multiple Airlines (Sep 24-Sep 28).
Reviews of airlines servicing Billings
Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated August 16, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Delta from San Francisco to Billings by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Food
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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Complete your trip
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Other flights to Billings
Explore flights to Billings departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 16, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Billings by cabin class
Find flights from San Francisco to Billings, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Billings flights
Browse other San Francisco and Billings flight options. Last updated on August 16, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on August 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San Francisco to Billings
Discover the top 2 airlines that operate flights from San Francisco to Billings. 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$563 | FlexibilityNo cancel fee | On-time75% |