$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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SFO
Sep 3 — Sep 101
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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Best
Last-minute
One-way
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 August 4, 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 August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 10/207:41 am -
1 stop5h 45m
Sat 10/241:51 pm -
1 stop8h 59m
Deal found 7/30![Alaska Airlines logo]()
$283
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:14 am -
1 stop12h 46m
Sat 9/197:22 pm -
1 stop27h 07m
Deal found 7/30![Alaska Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/217:29 pm -
1 stop18h 34m
Sun 9/278:53 pm -
1 stop13h 47m
Deal found 7/30![Alaska Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 10/97:32 pm -
1 stop25h 45m
Mon 10/129:23 pm -
1 stop16h 41m
Deal found 7/30![Alaska Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 8/3. 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 9/45:20 am -
1 stop4h 30m
Mon 9/75:50 am -
1 stop5h 25m
Deal found 8/3![Delta logo]()
$375
This Priceline deal was found by Cheapflights users on 8/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:41 am -
2 stops9h 35m
Sat 10/177:43 am -
1 stop6h 21m
Deal found 8/1![Alaska Airlines logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 8/287:20 pm -
1 stop5h 20m
Wed 9/26:00 am -
1 stop11h 40m
Deal found 8/1![Alaska Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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.
Sat 10/317:41 am -
2 stops10h 06m
Wed 11/411:39 am -
2 stops10h 04m
Deal found 8/3![Alaska Airlines logo]()
$397
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 August 4, 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 August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/217:29 pm -
1 stop18h 34m
Sun 9/278:53 pm -
1 stop13h 47m
Deal found 7/30![Alaska Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 7/30. 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 10/912:58 pm -
2 stops11h 58m
Mon 10/125:12 pm -
1 stop4h 13m
Deal found 7/30![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 10/203:44 pm -
1 stop6h 44m
Sat 10/245:45 pm -
1 stop5h 05m
Deal found 8/1![Alaska Airlines logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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.
Sat 10/317:41 am -
1 stop5h 45m
Wed 11/42:56 pm -
1 stop6h 47m
Deal found 8/3![Alaska Airlines logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 8/287:20 pm -
1 stop5h 20m
Wed 9/26:00 am -
1 stop11h 40m
Deal found 8/1![Alaska Airlines logo]()
$390
This deal was found by Cheapflights users on 8/3. 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.
Thu 9/177:29 pm -
1 stop5h 11m
Sun 9/203:48 pm -
1 stop6h 41m
Deal found 8/3![Alaska Airlines logo]()
$405
Last-minute flights from Billings to San FranciscoDiscover last-minute flight deals from Billings to San Francisco. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to San Francisco. Data last updated August 4, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 8/256:14 am -
2 stops11h 03m
Fri 8/289:02 pm -
1 stop17h 00m
Deal found 7/30![Alaska Airlines logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Fri 8/287:20 pm -
1 stop5h 20m
Wed 9/26:00 am -
1 stop11h 40m
Deal found 8/1![Alaska Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 8/3. 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 9/45:20 am -
1 stop4h 30m
Mon 9/75:50 am -
1 stop5h 25m
Deal found 8/3![Delta logo]()
$375
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:14 am -
1 stop12h 46m
Sat 9/197:22 pm -
1 stop27h 07m
Deal found 7/30![Alaska Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/122:29 pm -
1 stop7h 43m
Sat 9/194:18 pm -
1 stop5h 35m
Deal found 8/1![United Airlines logo]()
$345
This deal was found by Cheapflights users on 8/3. 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.
Thu 9/177:29 pm -
1 stop5h 11m
Sun 9/203:48 pm -
1 stop6h 41m
Deal found 8/3![Alaska Airlines logo]()
$405
This Expedia deal was found by Cheapflights users on 8/1. 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.
Sun 9/206:14 am -
1 stop5h 45m
Thu 9/248:23 am -
2 stops14h 06m
Deal found 8/1![Alaska Airlines logo]()
$416
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/217:29 pm -
1 stop18h 34m
Sun 9/278:53 pm -
1 stop13h 47m
Deal found 7/30![Alaska Airlines logo]()
$339
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 August 4, 2026.
Search for one-way flight options from Billings to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Priceline deal was found by Cheapflights users on 8/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:14 am -
1 stop5h 45m
Deal found 8/3![Alaska Airlines logo]()
$173
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:20 am -
1 stop4h 40m
Deal found 7/31![Delta logo]()
$188
This Delta deal was found by Cheapflights users on 8/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:20 am -
2 stops8h 53m
Deal found 8/2![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 9/277:29 pm -
2 stops18h 10m
Deal found 8/3![Alaska Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:42 pm -
3 stops43h 40m
Deal found 8/3![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:29 pm -
3 stops39h 53m
Deal found 8/2![Multiple Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 8/3. 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.
Sun 8/165:20 am -
1 stop4h 30m
Deal found 8/3![Delta logo]()
$459
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Sun 8/165:07 am -
2 stops7h 24m
Deal found 8/3![United Airlines logo]()
$466
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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Alaska Airlines) |
One-way from | $173 (Priceline) |
Popular in | June |
Cheapest in | September |
Average price | $478 |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 4, 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
Mon 9/21
7:29 pm-1:03 pm
1 stop18h 34m
San Francisco
Sun 9/27
8:53 pm-11:40 am
1 stop13h 47m
$339
Quickest round-trip
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Tue 10/20
3:44 pm-9:28 pm
1 stop6h 44m
San Francisco
Sat 10/24
5:45 pm-11:50 pm
1 stop5h 05m
$345
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sat 10/31
7:41 am-12:26 pm
1 stop5h 45m
San Francisco
Wed 11/4
2:56 pm-10:43 pm
1 stop6h 47m
$345
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Fri 8/28
7:20 pm-11:40 pm
1 stop5h 20m
San Francisco
Wed 9/2
6:00 am-6:40 pm
1 stop11h 40m
$390
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Fri 10/9
12:58 pm-11:56 pm
2 stops11h 58m
San Francisco
Mon 10/12
5:12 pm-10:25 pm
1 stop4h 13m
$399
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Thu 9/17
7:29 pm-11:40 pm
1 stop5h 11m
San Francisco
Sun 9/20
3:48 pm-11:29 pm
1 stop6h 41m
$405
Cheapest one-way
Quickest one-way
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sun 9/27
5:20 am-9:00 am
1 stop4h 40m
$188
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Thu 9/10
4:07 pm-10:55 pm
1 stop7h 48m
$188
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sat 9/12
6:14 am-4:37 pm
2 stops11h 23m
$199
BillingsSan Francisco
BIL - SFO
BILSFO
Billings Logan Intl
Sun 9/13
6:14 am-11:12 pm
2 stops17h 58m
$242
Showing 1-10 of 12 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 August.
| 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 June is currently the most expensive (average of $488). 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?
Airfare is below average for this route at the moment.
Billings to San Francisco flights typically cost between $370 and $647 in October.The cheapest round-trip price found within the last 5 days was $283 on Alaska Airlines (Oct 20-Oct 24).
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated August 4, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Billings to San Francisco by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.0
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
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 Clara
Santa Cruz
San Bruno
Fairfield
Emeryville
Roseville
Burlingame
Rancho Cordova
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
San Carlos
Milpitas
Turlock
San Lorenzo
Davis
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Billings and San Francisco flights
Browse other Billings and San Francisco flight options. Last updated on August 4, 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 August 4, 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 August 4, 2026.
Top 3 airlines flying from Billings to San Francisco
Discover the top 3 airlines that operate flights from Billings to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$306 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$387 | FlexibilityNo cancel fee | On-timeN/A |