$136+ Cheap flights from San Francisco to Billings (SFO - BIL)
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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIL
Mar 5 — Mar 121
1 adult, Economy
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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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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 February 3, 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 February 3, 2026.
This Delta deal was found by Cheapflights users on 2/3. 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 4/175:40 am
SFO
- BIL
1 stop4h 13m
Delta
Mon 4/206:18 pm
BIL
- SFO
1 stop6h 41m
Delta
Deal found 2/3![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 2/2. 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 6/28:45 pm
SFO
- BIL
1 stop15h 31m
Alaska Airlines
Fri 6/57:21 pm
BIL
- SFO
1 stop14h 57m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 4/178:00 am
SFO
- BIL
2 stops14h 58m
Alaska Airlines
Mon 4/207:56 am
BIL
- SFO
1 stop17h 03m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 4/309:20 am
SFO
- BIL
2 stops12h 39m
Alaska Airlines
Thu 5/712:49 pm
BIL
- SFO
1 stop4h 57m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 2/3. 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.
Mon 3/95:01 pm
SFO
- BIL
1 stop4h 28m
Delta
Thu 3/125:15 am
BIL
- SFO
1 stop4h 41m
Delta
Deal found 2/3![Delta logo]()
$365
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 7/112:20 pm
SFO
- BIL
1 stop5h 49m
United Airlines
Sat 7/185:55 pm
BIL
- SFO
1 stop6h 01m
United Airlines
Deal found 2/1![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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.
Sun 6/217:40 am
SFO
- BIL
1 stop6h 20m
Alaska Airlines
Sun 6/286:00 am
BIL
- SFO
1 stop6h 21m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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.
Mon 3/96:27 pm
SFO
- BIL
2 stops17h 57m
Alaska Airlines
Thu 3/123:32 pm
BIL
- SFO
1 stop5h 15m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$416
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 February 3, 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 February 3, 2026.
This Delta deal was found by Cheapflights users on 2/1. 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 4/175:40 am
SFO
- BIL
1 stop4h 13m
Delta
Mon 4/206:18 pm
BIL
- SFO
1 stop6h 41m
Delta
Deal found 2/1![Delta logo]()
$305
This Expedia deal was found by Cheapflights users on 2/1. 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.
Tue 6/25:38 pm
SFO
- BIL
1 stop4h 55m
Alaska Airlines
Fri 6/57:21 pm
BIL
- SFO
1 stop14h 57m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 7/112:20 pm
SFO
- BIL
1 stop5h 49m
United Airlines
Sat 7/185:55 pm
BIL
- SFO
1 stop6h 01m
United Airlines
Deal found 2/1![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 4/178:00 am
SFO
- BIL
2 stops14h 58m
Alaska Airlines
Mon 4/207:56 am
BIL
- SFO
1 stop17h 03m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 1/31. 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 4/309:20 am
SFO
- BIL
2 stops12h 39m
Alaska Airlines
Thu 5/712:49 pm
BIL
- SFO
1 stop4h 57m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$353
Last-minute flights from San Francisco to BillingsDiscover last-minute flight deals from San Francisco to Billings. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Billings. Data last updated February 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 2/149:20 pm
SFO
- BIL
1 stop23h 01m
United Airlines
Tue 2/172:35 pm
BIL
- SFO
1 stop9h 42m
United Airlines
Deal found 2/1![United Airlines logo]()
$630
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 2/1410:25 am
SFO
- BIL
2 stops12h 10m
American Airlines
Tue 2/177:25 am
BIL
- SFO
1 stop12h 51m
American Airlines
Deal found 2/1![American Airlines logo]()
$689
This Alaska Airlines deal was found by Cheapflights users on 2/1. 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 2/146:00 am
SFO
- BIL
2 stops16h 38m
Alaska Airlines
Tue 2/173:32 pm
BIL
- SFO
2 stops18h 14m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$746
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Sun 2/1510:25 am
SFO
- BIL
2 stops12h 10m
American Airlines
Thu 2/197:25 am
BIL
- SFO
1 stop9h 20m
American Airlines
Deal found 1/31![American Airlines logo]()
$646
This Delta deal was found by Cheapflights users on 2/3. 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 2/175:05 pm
SFO
- BIL
1 stop4h 21m
Delta
Fri 2/205:10 am
BIL
- SFO
1 stop4h 50m
Delta
Deal found 2/3![Delta logo]()
$559
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 2/176:00 am
SFO
- BIL
2 stops16h 38m
Alaska Airlines
Fri 2/203:32 pm
BIL
- SFO
1 stop5h 15m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/1810:25 am
SFO
- BIL
2 stops12h 10m
American Airlines
Sun 2/227:25 am
BIL
- SFO
1 stop9h 20m
American Airlines
Deal found 2/2![American Airlines logo]()
$628
This Delta deal was found by Cheapflights users on 2/3. 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.
Mon 3/95:01 pm
SFO
- BIL
1 stop4h 28m
Delta
Thu 3/125:15 am
BIL
- SFO
1 stop4h 41m
Delta
Deal found 2/3![Delta logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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.
Mon 3/96:27 pm
SFO
- BIL
2 stops17h 57m
Alaska Airlines
Thu 3/123:32 pm
BIL
- SFO
1 stop5h 15m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$416
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 February 3, 2026.
Search for one-way flight options from San Francisco to Billings. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This deal was found by Cheapflights users on 2/3. 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.
Mon 4/208:00 am
SFO
- BIL
1 stop4h 25m
Alaska Airlines
Deal found 2/3![Alaska Airlines logo]()
$136
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Wed 4/296:40 am
SFO
- BIL
1 stop5h 43m
United Airlines
Deal found 1/31![United Airlines logo]()
$140
This Expedia deal was found by Cheapflights users on 1/31. 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.
Thu 4/307:00 am
SFO
- BIL
1 stop14h 59m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$141
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 4/116:40 am
SFO
- BIL
1 stop5h 43m
United Airlines
Deal found 2/3![United Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 4/309:33 pm
SFO
- BIL
1 stop10h 41m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 5/63:31 pm
SFO
- BIL
3 stops46h 20m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 4/298:00 am
SFO
- BIL
3 stops27h 09m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$409
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 February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $305 (Delta) |
One-way from | $136 |
Popular in | December |
Cheapest in | February |
Average price | $293 |
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 February 3, 2026.
Use the filters below to find and compare flights from San Francisco to Billings that are best for you.
Fly from
San Francisco
Fly to
Billings
Route
Depart
Return
Price
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Fri 4/17
5:40 am-10:53 am
1 stop4h 13m
Billings Logan Intl
Mon 4/20
6:18 pm-11:59 pm
1 stop6h 41m
$305
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Tue 6/2
5:38 pm-11:33 pm
1 stop4h 55m
Billings Logan Intl
Fri 6/5
7:21 pm-9:18 am
1 stop14h 57m
$314
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Fri 4/17
8:00 am-11:58 pm
2 stops14h 58m
Billings Logan Intl
Mon 4/20
7:56 am-11:59 pm
1 stop17h 03m
$348
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Thu 4/30
9:20 am-10:59 pm
2 stops12h 39m
Billings Logan Intl
Thu 5/7
12:49 pm-4:46 pm
1 stop4h 57m
$353
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Sat 7/11
2:20 pm-9:09 pm
1 stop5h 49m
Billings Logan Intl
Sat 7/18
5:55 pm-10:56 pm
1 stop6h 01m
$382
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Mon 4/20
8:00 am-1:25 pm
1 stop4h 25m
$136
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Wed 5/6
5:40 am-10:53 am
1 stop4h 13m
$136
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Wed 4/29
6:40 am-1:23 pm
1 stop5h 43m
$140
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Wed 4/29
5:49 pm-9:14 am
2 stops38h 25m
$140
San FranciscoBillings
SFO - BIL
SFOBIL
San Francisco
Sat 4/11
6:40 am-1:23 pm
1 stop5h 43m
$144
Showing 1-10 of 12 results
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 February.
| 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
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 February 3, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines 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.
Comfort
7.8
Overall
8.0
Food
7.1
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Overall
8.0
Food
7.1
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Overall
8.0
Food
7.1
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Overall
8.0
Food
7.1
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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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Alternative routes for San Francisco to Billings
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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 February 3, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
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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 February 3, 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 February 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from San Francisco to Billings
Discover the top 3 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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$348 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$543 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$299 | Average$401 | FlexibilityNo cancel fee | On-time69% |