$234+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIL
Oct 31 — Nov 71
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Billings 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 San Francisco to Billings
Cheapest
Best
Last-minute
One-way
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 October 1, 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 October 1, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/122:47 pm -
1 stop23h 05m
Mon 11/163:32 pm -
1 stop5h 17m
Deal found 9/27![Alaska Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:15 pm -
1 stop14h 00m
Wed 12/302:57 pm -
1 stop16h 49m
Deal found 10/1![Multiple Airlines logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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 11/611:41 am -
1 stop26h 11m
Mon 11/93:32 pm -
1 stop4h 48m
Deal found 9/29![Alaska Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/259:15 pm -
1 stop15h 52m
Wed 12/302:57 pm -
1 stop16h 49m
Deal found 10/1![Multiple Airlines logo]()
$408
This Expedia deal was found by Cheapflights users on 9/27. 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.
Mon 11/27:42 am -
1 stop6h 10m
Thu 11/511:55 am -
1 stop11h 50m
Deal found 9/27![Alaska Airlines logo]()
$433
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 October 1, 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 October 1, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/122:47 pm -
1 stop23h 05m
Mon 11/163:32 pm -
1 stop5h 17m
Deal found 9/27![Alaska Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Thu 10/226:15 am -
1 stop5h 59m
Tue 10/272:42 pm -
1 stop7h 28m
Deal found 10/1![United Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/251:26 pm -
1 stop6h 55m
Sun 11/2910:11 pm -
1 stop17h 23m
Deal found 9/29![Multiple Airlines logo]()
$475
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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 11/611:41 am -
1 stop26h 11m
Mon 11/93:32 pm -
1 stop4h 48m
Deal found 9/29![Alaska Airlines logo]()
$385
Last-minute flights from San Francisco to BillingsDiscover last-minute flight deals from San Francisco to Billings. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Billings. Data last updated October 1, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/27. 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.
Mon 11/27:42 am -
1 stop6h 10m
Thu 11/511:55 am -
1 stop11h 50m
Deal found 9/27![Alaska Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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 11/611:41 am -
1 stop26h 11m
Mon 11/93:32 pm -
1 stop4h 48m
Deal found 9/29![Alaska Airlines logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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 11/122:47 pm -
1 stop23h 05m
Mon 11/163:32 pm -
1 stop5h 17m
Deal found 9/27![Alaska Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 11/256:15 am -
2 stops14h 06m
Sun 11/2910:11 pm -
1 stop17h 23m
Deal found 9/29![Multiple Airlines logo]()
$437
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 October 1, 2026.
Search for one-way flight options from San Francisco to Billings. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
This Delta deal was found by Cheapflights users on 9/28. 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 10/195:50 am -
1 stop5h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Delta logo]()
$234
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/201:25 pm -
2 stops24h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Alaska Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/1910:39 am -
3 stops49h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/1910:13 pm -
2 stops15h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Alaska Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 9/28. 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 10/74:21 pm -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Alaska Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/205:48 pm -
3 stops29h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$753
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 October 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Kiwi.com) |
One-way from | $234 (Delta) |
Popular in | December |
Cheapest in | February |
Average price | $496 |
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 7,457,451 searches. Data last updated October 1, 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
Quickest round-trip
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Tue 10/20
5:13 pm-10:25 pm
1 stop4h 12m
Billings Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$234
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Tue 10/20
1:25 pm-3:04 pm
2 stops24h 39m
Billings Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$284
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Mon 10/19
10:39 am-12:50 pm
3 stops49h 11m
Billings Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$318
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Thu 11/12
2:47 pm-2:52 pm
1 stop23h 05m
Billings Logan Intl
Mon 11/16
3:32 pm-7:49 pm
1 stop5h 17m
$363
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Fri 11/6
11:41 am-2:52 pm
1 stop26h 11m
Billings Logan Intl
Mon 11/9
3:32 pm-7:20 pm
1 stop4h 48m
$385
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Mon 10/19
10:13 pm-3:04 pm
2 stops15h 51m
Billings Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$389
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Thu 10/22
6:15 am-1:14 pm
1 stop5h 59m
Billings Logan Intl
Tue 10/27
2:42 pm-9:10 pm
1 stop7h 28m
$467
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Wed 11/25
1:26 pm-9:21 pm
1 stop6h 55m
Billings Logan Intl
Sun 11/29
10:11 pm-2:34 pm
1 stop17h 23m
$475
San FranciscoBillings
SFO San Francisco - BIL Billings Logan Intl
SFOBIL
San Francisco
Wed 10/7
4:21 pm-11:50 pm
1 stop6h 29m
Billings Logan Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$493
Sorted 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 October.
| 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 $378 and $686 in January.The cheapest round-trip price found within the last 5 days was $246 on Multiple Airlines (Jan 7-Jan 25).
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 October 1, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited 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.
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.0
Entertainment
7.0
Comfort
7.8
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.
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
Billings flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Francisco
Popular flights
Alternative routes for San Francisco to Billings
See prices for flight routes from nearby airports that may be better suited for you.
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 October 1, 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 October 1, 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 October 1, 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 7,457,451 searches. Data last updated October 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$255 | Average$426 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$563 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$311 | Average$574 | FlexibilityNo cancel fee | On-time69% |