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$94+ Cheap flights from Billings to San Francisco (BIL - SFO)

BIL — SFO
Oct 31 — Nov 71
Sat 10/31
Sat 11/7
1 adult, Economy
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Cheap flight deals from Billings to San Francisco

Cheapest flights from Billings to San Francisco

Mon 11/912:14 pm -
1 stop21h 05m
Wed 12/26:30 pm -
1 stop25h 27m
Deal found 9/27$162
Fri 11/205:57 pm -
1 stop17h 01m
Sun 11/229:11 pm -
1 stop18h 56m
Deal found 9/30$216
Mon 11/27:59 pm -
1 stop19h 21m
Sat 11/77:25 pm -
2 stops38h 59m
Deal found 9/30$316
Sat 12/53:32 pm -
1 stop5h 05m
Wed 12/97:40 am -
1 stop6h 12m
Deal found 9/29$353
Tue 10/273:44 pm -
1 stop5h 03m
Tue 11/106:59 pm -
2 stops15h 16m
Deal found 9/27$358
Fri 10/910:22 pm -
1 stop17h 03m
Thu 10/157:59 pm -
1 stop24h 33m
Deal found 10/1$396

Find flight deals from Billings to San Francisco

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$162
(Kiwi.com)

One-way from

$94
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$367
Provider with most accurate pricing for Billings Logan Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-San Francisco flights.
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From Billings Logan Intl to San Francisco
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One-way flight from Billings Logan Intl to San Francisco
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Highest demand for flights based on searches. 19% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
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

Price

Cheapest round-trip

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Mon 11/2

7:59 pm-8:19 am

1 stop13h 20m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$94
Quickest round-trip

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Wed 10/28

3:44 pm-7:47 pm

1 stop5h 03m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$212

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Mon 11/2

3:32 pm-1:39 pm

2 stops23h 07m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$235

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Wed 10/28

5:20 am-1:08 pm

2 stops8h 48m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$242

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Sat 12/5

3:32 pm-7:37 pm

1 stop5h 05m

San Francisco

Wed 12/9

7:40 am-2:52 pm

1 stop6h 12m

$353

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Tue 10/27

3:44 pm-7:47 pm

1 stop5h 03m

San Francisco

Tue 11/10

6:59 pm-11:15 am

2 stops15h 16m

$358

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Tue 10/13

5:57 pm-10:51 pm

1 stop5h 54m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$373

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Thu 1/28

3:15 pm-6:59 pm

1 stop4h 44m

San Francisco

Sun 1/31

4:39 pm-11:29 am

1 stop17h 50m

$398

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Tue 10/13

12:58 pm-11:56 pm

2 stops11h 58m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$452

BillingsSan Francisco

BIL Billings Logan Intl - SFO San Francisco

BILSFO

Billings Logan Intl

Wed 10/28

7:32 pm-4:50 pm

3 stops46h 18m

San Francisco

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Sorted by cheapest first

Compare providers for flights from Billings to San Francisco

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
Estimated round-trip price

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, February is the cheapest month in which you can book a flight from Billings to San Francisco (average of $274). Flying from Billings to San Francisco in August is currently the most expensive (average of $678). 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.

Reviews of airlines servicing San Francisco

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.
Alaska Airlines
7.9
Good
13,001 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
13,001 reviews
Alaska Airlines
7.9
Good
13,001 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Delta
7.8
Good
8,615 reviews
Alaska Airlines
7.9
Good
13,001 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,270 reviews
Alaska Airlines
7.9
Good
13,001 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

7.9

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • How long is the flight from Billings to San Francisco?

    There are many flights that can get you from Billings to San Francisco in 5h 05m. Fly via Alaska Airlines to get the fastest option. There are 908 mi between Billings and San Francisco.

  • What are the cheapest airlines flying from Billings to San Francisco round-trip?

    According to our current data, Alaska Airlines ($213), United Airlines ($254), and Delta ($258) offers the cheapest pricing from Billings to San Francisco. These flights start at 47% lower than the current average price 3 months from now.

  • Can I find deals for flights from Billings to San Francisco that include hotel bookings?

    Yes. In addition to deals on Billings to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to San Francisco.

  • Can I find deals for business class flights from Billings to San Francisco?

    Yes. Cheapflights offers flight deals from Billings to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Billings to San Francisco (average of $274). Flying from Billings to San Francisco in August is currently the most expensive (average of $678). 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.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
Hayward
Burlingame
Rancho Cordova
San Bruno
Roseville
Redwood City
Cupertino
Newark
Fairfield
San Ramon
Manteca
Vallejo
San Carlos
Turlock
Davis

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Billings to San Francisco

AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$213Average$283FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$439FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$410FlexibilityNo cancel feeOn-timeN/A

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