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San Francisco Bay Area

$126+ Cheap flights from Billings (BIL) to San Francisco Bay Area

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SFO
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Billings to San Francisco Bay Area

Keep the following information in mind while searching for Billings to San Francisco Bay Area flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$236
(KAYAK)

One-way from

$126
(Alaska Airlines)

Popular in

November

Cheapest in

April

Average price

$373
From Billings Logan Intl to San Francisco Bay Area
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One-way flight from Billings Logan Intl to San Francisco Bay Area
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Billings to San Francisco Bay Area

Cheapest flights from Billings to San Francisco Bay Area
Explore the most affordable flight options available from Billings to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/282:00 pmBIL - SJC
1 stop7h 00mAlaska Airlines
mar. 11/411:51 amSJC - BIL
1 stop5h 48mAlaska Airlines
Deal found 9/15$236
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/283:40 pmBIL - SFO
1 stop5h 07mAlaska Airlines
mar. 11/48:00 amSFO - BIL
1 stop4h 20mAlaska Airlines
Deal found 9/15$246
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/147:15 pmBIL - SJC
1 stop15h 08mAlaska Airlines
mar. 10/215:59 pmSJC - BIL
1 stop5h 09mAlaska Airlines
Deal found 9/16$252
This United Airlines deal was found by Cheapflights users on 9/17. 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.
mié. 12/107:00 amBIL - SJC
1 stop7h 32mUnited Airlines
mié. 12/312:29 pmSJC - BIL
1 stop5h 55mUnited Airlines
Deal found 9/17$253
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/286:00 amBIL - SJC
1 stop5h 57mAlaska Airlines
lun. 11/34:48 pmSJC - BIL
1 stop6h 19mAlaska Airlines
Deal found 9/15$256
This Hawaiian Airlines deal was found by Cheapflights users on 9/17. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/133:36 pmBIL - SJC
1 stop4h 49mHawaiian Airlines
mar. 12/167:40 amSJC - BIL
1 stop4h 42mHawaiian Airlines
Deal found 9/17$257
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/282:00 pmBIL - SFO
1 stop7h 13mAlaska Airlines
lun. 11/36:18 pmSFO - BIL
1 stop4h 49mAlaska Airlines
Deal found 9/15$257
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 12/133:36 pmBIL - SJC
1 stop4h 49mAlaska Airlines
mar. 12/167:40 amSJC - BIL
1 stop4h 42mAlaska Airlines
Deal found 9/16$277
This Delta deal was found by Cheapflights users on 9/17. 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.
sáb. 12/135:15 amBIL - SJC
1 stop4h 55mDelta
mar. 12/161:59 pmSJC - BIL
2 stops9h 23mDelta
Deal found 9/17$278
This Delta deal was found by Cheapflights users on 9/15. 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.
mar. 10/285:25 amBIL - SFO
2 stops7h 15mDelta
mar. 11/43:23 pmSFO - BIL
1 stop6h 55mDelta
Deal found 9/15$278
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 12/136:00 amBIL - SJC
2 stops14h 25mAlaska Airlines
lun. 12/152:56 pmSJC - BIL
1 stop21h 26mAlaska Airlines
Deal found 9/16$288
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:15 pmBIL - OAK
1 stop5h 48mHawaiian Airlines
mar. 10/289:30 amOAK - BIL
1 stop26h 50mHawaiian Airlines
Deal found 9/15$289

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to San Francisco Bay Area 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Billings to San Francisco Bay Area that are best for you.

Fly from

Billings

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

mar. 10/28

3:40 pm-7:47 pm

1 stop5h 07m

San Francisco

mar. 11/4

8:00 am-1:20 pm

1 stop4h 20m

$246

BillingsSan Jose

BIL - SJC

BILSJC

Billings Logan Intl

mar. 10/14

7:15 pm-9:23 am

1 stop15h 08m

San Jose

mar. 10/21

5:59 pm-12:08 am

1 stop5h 09m

$252

BillingsSan Jose

BIL - SJC

BILSJC

Billings Logan Intl

sáb. 12/13

3:36 pm-7:25 pm

1 stop4h 49m

San Jose

mar. 12/16

7:40 am-1:22 pm

1 stop4h 42m

$257

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

mar. 10/28

2:00 pm-8:13 pm

1 stop7h 13m

San Francisco

lun. 11/3

6:18 pm-12:07 am

1 stop4h 49m

$257

BillingsSan Jose

BIL - SJC

BILSJC

Billings Logan Intl

sáb. 12/13

6:00 am-10:14 am

1 stop5h 14m

San Jose

lun. 12/15

6:25 pm-1:22 pm

1 stop17h 57m

$277

BillingsSan Jose

BIL - SJC

BILSJC

Billings Logan Intl

sáb. 12/13

3:36 pm-7:25 pm

1 stop4h 49m

San Jose

mar. 12/16

7:40 am-1:22 pm

1 stop4h 42m

$277

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

mar. 10/28

5:25 am-11:40 am

2 stops7h 15m

San Francisco

mar. 11/4

3:23 pm-11:18 pm

1 stop6h 55m

$278

BillingsSan Francisco

BIL - SFO

BILSFO

Billings Logan Intl

mar. 10/28

5:25 am-2:33 pm

2 stops10h 08m

San Francisco

lun. 11/3

5:30 pm-10:25 pm

1 stop3h 55m

$278

BillingsSan Jose

BIL - SJC

BILSJC

Billings Logan Intl

sáb. 12/13

5:15 am-9:10 am

1 stop4h 55m

San Jose

mar. 12/16

1:59 pm-12:22 am

2 stops9h 23m

$278

BillingsOakland

BIL - OAK

BILOAK

Billings Logan Intl

lun. 10/20

7:15 pm-12:03 am

1 stop5h 48m

Oakland

mar. 10/28

9:30 am-1:20 pm

1 stop26h 50m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 40 results
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Best time to book a flight from Billings to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Billings with our price prediction graph.
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 Bay Area

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

Currently, January is the cheapest month in which you can book a flight from Billings to San Francisco Bay Area (average of $276). Flying from Billings to San Francisco Bay Area in June is currently the most expensive (average of $357). 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.

What is the cheapest time of day to fly from BIL to XIH?

Find hourly flight availability from Billings to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Billings to San Francisco Bay Area as you normally would.

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated septiembre 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Billings to San Francisco Bay Area by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Billings to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Billings to San Francisco Bay Area?

    If you book a flight to San Francisco Bay Area from Billings, you will be flying from Billings Logan Intl, which is the city’s only airport. Billings Logan Intl (BIL) is located 2.7 mi from the center of Billings.

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

    Departing from Billings to San Francisco Bay Area will take you 4h 49m. There are 902 mi between Billings and San Francisco Bay Area. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Billings to San Francisco Bay Area one-way?

    $126 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Delta, with prices starting from $136 and $137, respectively.

  • What are the most popular routes from Billings to San Francisco Bay Area?

    The most popular route from Billings to San Francisco Bay Area is Billings Logan Intl - San Francisco. You may also consider Billings Logan Intl - San Jose or Billings Logan Intl - Oakland.

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

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

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

    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 Bay Area.

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

    Yes. Cheapflights offers flight deals from Billings to San Francisco Bay Area 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 Bay Area?

    Currently, January is the cheapest month in which you can book a flight from Billings to San Francisco Bay Area (average of $276). Flying from Billings to San Francisco Bay Area in June is currently the most expensive (average of $357). 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.

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Top 3 airlines flying from Billings to San Francisco Bay Area

Discover the top 3 airlines that operate flights from Billings to San Francisco Bay Area. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$191Average$445FlexibilityNo cancel feeOn-time75%
DeltaCheapest$197Average$305FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$220Average$404FlexibilityNo cancel feeOn-time69%

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