$183+ Cheap flights from Billings to San Francisco (BIL - SFO)
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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SFO
Oct 10 — Oct 171
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 Billings to San Francisco
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Best
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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 September 10, 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 September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/210:22 pm -
1 stop10h 52m
Thu 10/1510:19 pm -
1 stop22h 13m
Deal found 9/6![Multiple Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/65:12 pm -
1 stop21h 58m
Mon 11/98:58 pm -
1 stop18h 34m
Deal found 9/10![Alaska Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 12/53:44 pm -
1 stop5h 05m
Wed 12/92:45 pm -
1 stop8h 23m
Deal found 9/9![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 9/7. 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 10/2412:58 pm -
2 stops10h 53m
Wed 10/286:20 am -
2 stops10h 29m
Deal found 9/7![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 9/8. 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 11/712:58 pm -
2 stops11h 58m
Mon 11/96:17 am -
2 stops10h 32m
Deal found 9/8![Delta logo]()
$339
This Booking.com deal was found by Cheapflights users on 9/8. 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 11/73:32 pm -
1 stop5h 17m
Mon 11/911:41 am -
1 stop26h 11m
Deal found 9/8![Alaska Airlines logo]()
$353
This Priceline deal was found by Cheapflights users on 9/8. 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.
Thu 11/53:32 pm -
1 stop8h 50m
Sat 11/77:42 am -
1 stop6h 10m
Deal found 9/8![Alaska Airlines logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 10/243:44 pm -
1 stop5h 03m
Wed 10/289:43 am -
1 stop13h 07m
Deal found 9/8![Alaska Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 9/8. 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 11/55:20 am -
2 stops8h 48m
Sat 11/76:20 am -
2 stops10h 29m
Deal found 9/8![Delta logo]()
$368
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 September 10, 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 September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 12/53:44 pm -
1 stop5h 05m
Wed 12/92:45 pm -
1 stop8h 23m
Deal found 9/9![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 9/8. 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 11/55:20 am -
2 stops8h 48m
Sat 11/76:20 am -
2 stops10h 29m
Deal found 9/8![Delta logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 11/77:18 am -
2 stops13h 31m
Mon 11/92:47 pm -
1 stop23h 05m
Deal found 9/8![Alaska Airlines logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 1/2812:09 pm -
1 stop11h 47m
Sun 1/315:39 pm -
1 stop5h 12m
Deal found 9/6![Alaska Airlines logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 stop14h 17m
Mon 10/125:45 pm -
1 stop16h 40m
Deal found 9/7![Alaska Airlines logo]()
$400
Last-minute flights from Billings to San FranciscoDiscover last-minute flight deals from Billings to San Francisco. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to San Francisco. Data last updated September 10, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 9/293:42 pm -
1 stop6h 01m
Tue 10/134:21 pm -
1 stop6h 29m
Deal found 9/6![Alaska Airlines logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 9/293:42 pm -
1 stop6h 01m
Thu 10/151:51 pm -
1 stop8h 59m
Deal found 9/6![Alaska Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/210:22 pm -
1 stop10h 52m
Thu 10/1510:19 pm -
1 stop22h 13m
Deal found 9/6![Multiple Airlines logo]()
$276
This Expedia deal was found by Cheapflights users on 9/8. 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 10/63:44 pm -
2 stops17h 17m
Sat 10/107:43 am -
1 stop6h 21m
Deal found 9/8![Alaska Airlines logo]()
$415
This Priceline deal was found by Cheapflights users on 9/7. 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.
Wed 10/73:44 pm -
1 stop5h 03m
Wed 10/141:51 pm -
1 stop8h 59m
Deal found 9/7![Alaska Airlines logo]()
$333
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 stop21h 36m
Mon 10/128:46 pm -
1 stop13h 39m
Deal found 9/6![Alaska Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 9/7. 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 10/2412:58 pm -
2 stops10h 53m
Wed 10/286:20 am -
2 stops10h 29m
Deal found 9/7![Delta logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 10/243:44 pm -
1 stop5h 03m
Wed 10/289:43 am -
1 stop13h 07m
Deal found 9/8![Alaska Airlines logo]()
$363
This Travelocity deal was found by Cheapflights users on 9/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:32 pm -
1 stop14h 17m
Wed 10/285:45 pm -
1 stop5h 05m
Deal found 9/9![Alaska Airlines logo]()
$378
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 September 10, 2026.
Search for one-way flight options from Billings to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/1610:22 pm -
1 stop10h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/185:11 pm -
1 stop16h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$191
This Priceline deal was found by Cheapflights users on 9/6. 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.
Sun 11/227:20 am -
1 stop7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$192
This Expedia deal was found by Cheapflights users on 9/7. 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 12/256:00 am -
1 stop6h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 9/7. 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$224
This Delta deal was found by Cheapflights users on 9/6. 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 11/2212:58 pm -
2 stops11h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/275:57 pm -
2 stops14h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$353
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $276 (Kiwi.com) |
One-way from | $183 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $416 |
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 7,457,451 searches. Data last updated September 10, 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 Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Fri 9/18
5:11 pm-8:14 am
1 stop16h 03m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$191
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Fri 12/25
6:00 am-11:32 am
1 stop6h 32m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$214
Quickest round-trip
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Sun 9/27
5:20 am-9:00 am
1 stop4h 40m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$224
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Sun 11/22
12:58 pm-11:31 pm
2 stops11h 33m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$257
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Fri 10/16
10:22 pm-12:15 am
3 stops26h 53m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$318
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Sat 12/5
3:44 pm-7:49 pm
1 stop5h 05m
San Francisco
Wed 12/9
2:45 pm-12:08 am
1 stop8h 23m
$333
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Sun 9/27
5:57 pm-7:26 am
2 stops14h 29m
San Francisco
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$353
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Sat 11/7
7:18 am-7:49 pm
2 stops13h 31m
San Francisco
Mon 11/9
2:47 pm-2:52 pm
1 stop23h 05m
$358
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Thu 11/5
5:20 am-1:08 pm
2 stops8h 48m
San Francisco
Sat 11/7
6:20 am-5:49 pm
2 stops10h 29m
$368
BillingsSan Francisco
BIL Billings Logan Intl - SFO San Francisco
BILSFO
Billings Logan Intl
Thu 1/28
12:09 pm-10:56 pm
1 stop11h 47m
San Francisco
Sun 1/31
5:39 pm-11:51 pm
1 stop5h 12m
$375
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 September.
| 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
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 September 10, 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.
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Overall
7.9
Comfort
7.8
Food
7.0
Entertainment
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - 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
Walnut Creek
Emeryville
San Bruno
Burlingame
Rancho Cordova
Roseville
Fairfield
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
Vallejo
San Carlos
Turlock
Davis
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Billings and San Francisco flights
Browse other Billings and San Francisco flight options. Last updated on September 10, 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 September 10, 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 September 10, 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$410 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$306 | FlexibilityNo cancel fee | On-time75% |