How long is the flight from San Francisco to Billings?

There are many flights that can get you from San Francisco to Billings in 4h 21m. Fly via Alaska Airlines or Delta to get the fastest option. Airlines will cover a distance of 908 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

Delta, at $254, was found to be the cheapest airline from San Francisco to Billings.Alternate airlines to your destination round-trip include Alaska Airlines and United Airlines. These flights start at 39% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Billings ranges from 0.5 - 2.2 inches per month. May is typically the wettest month, when rainfall can reach 2.2 in. January is typically the driest time to visit Billings when rainfall is around 0.5 in.

If weather is an important factor for your trip to Billings, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What are the most popular airlines that fly from San Francisco to Billings?

Before booking your flight from San Francisco to Billings check out the most popular airlines for this route: Alaska Airlines, Delta or United Airlines.

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

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

Most accurate provider : When it comes to deals on San Francisco-Billings flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Billings flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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

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

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

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

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

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

$138+ Flights from San Francisco to Billings

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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 flights from San Francisco to Billings
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 December 28, 2025.

Fri 12/2612:21 pmSFO - BIL

1 stop9h 58mDelta

Tue 12/305:14 amBIL - SFO

1 stop4h 49mDelta

Deal found 12/25

$909

Fri 12/2610:35 pmSFO - BIL

2 stops13h 49mUnited Airlines

Tue 12/3010:55 amBIL - SFO

1 stop7h 55mUnited Airlines

Deal found 12/25

$958

Fri 12/266:50 pmSFO - BIL

1 stop27h 04mAmerican Airlines

Tue 12/306:00 amBIL - SFO

1 stop14h 44mAmerican Airlines

Deal found 12/26

$1,087

Best flights from San Francisco to Billings
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 December 28, 2025.

Sat 1/177:57 amSFO - BIL

1 stop4h 25mAlaska Airlines

Sat 1/247:00 amBIL - SFO

1 stop8h 00mAlaska Airlines

Deal found 12/27

$254

Sat 1/175:45 amSFO - BIL

1 stop4h 21mDelta

Sat 1/2411:47 amBIL - SFO

2 stops12h 43mDelta

Deal found 12/27

$264

Mon 2/24:46 pmSFO - BIL

1 stop5h 50mAlaska Airlines

Fri 2/63:35 pmBIL - SFO

1 stop5h 08mAlaska Airlines

Deal found 12/26

$275

Mon 5/412:26 pmSFO - BIL

1 stop9h 33mAlaska Airlines

Thu 5/712:49 pmBIL - SFO

1 stop4h 57mAlaska Airlines

Deal found 12/26

$338

Thu 1/155:45 amSFO - BIL

1 stop4h 21mDelta

Sun 1/185:15 amBIL - SFO

1 stop4h 45mDelta

Deal found 12/26

$417

Sat 4/48:59 pmSFO - BIL

1 stop25h 59mAlaska Airlines

Sat 4/1112:34 pmBIL - SFO

1 stop4h 55mAlaska Airlines

Deal found 12/27

$384

Last-minute flights from San Francisco to Billings
Discover last-minute flight deals from San Francisco to Billings. Data last updated December 28, 2025 and is based on user searches.

Wed 1/74:03 pmSFO - BIL

2 stops20h 19mAlaska Airlines

Fri 1/93:35 pmBIL - SFO

1 stop5h 08mAlaska Airlines

Deal found 12/25

$579

Fri 1/99:42 pmSFO - BIL

1 stop14h 40mAlaska Airlines

Mon 1/123:35 pmBIL - SFO

2 stops18h 12mAlaska Airlines

Deal found 12/26

$538

Sat 1/107:57 amSFO - BIL

1 stop4h 25mAlaska Airlines

Wed 1/143:35 pmBIL - SFO

2 stops17h 03mAlaska Airlines

Deal found 12/26

$548

Thu 1/155:45 amSFO - BIL

1 stop4h 21mDelta

Sun 1/185:15 amBIL - SFO

1 stop4h 45mDelta

Deal found 12/26

$417

Sat 1/177:57 amSFO - BIL

1 stop4h 25mAlaska Airlines

Sat 1/247:00 amBIL - SFO

1 stop8h 00mAlaska Airlines

Deal found 12/27

$254

Sat 1/175:45 amSFO - BIL

1 stop4h 21mDelta

Sat 1/2411:47 amBIL - SFO

2 stops12h 43mDelta

Deal found 12/27

$264

One-way flights from San Francisco to Billings
Search for one-way flight options from San Francisco to Billings. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Sun 1/255:05 pmSFO - BIL

1 stop4h 26mDelta

Deal found 12/26

$138

Sun 1/257:14 pmSFO - BIL

1 stop13h 35mMultiple Airlines

Deal found 12/26

$156

Sun 1/259:54 pmSFO - BIL

2 stops24h 42mAlaska Airlines

Deal found 12/26

$194

Find flight deals from San Francisco to Billings

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$254 (Alaska Airlines)
One-way from	$138 (Delta)
Popular in	December
Cheapest in	September
Average price	$614

Provider with most accurate pricing for San Francisco-Billings Logan Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Francisco-Billings Logan Intl flights.

Search Deals

From San Francisco to Billings Logan Intl

Search Deals

One-way flight from San Francisco to Billings Logan Intl

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Price

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sat 1/17

7:57 am-1:22 pm

1 stop4h 25m

Billings Logan Intl

Sat 1/24

7:00 am-2:00 pm

1 stop8h 00m

$254

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sat 1/17

5:45 am-11:06 am

1 stop4h 21m

Billings Logan Intl

Sat 1/24

11:47 am-11:30 pm

2 stops12h 43m

$264

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Mon 2/2

4:46 pm-11:36 pm

1 stop5h 50m

Billings Logan Intl

Fri 2/6

3:35 pm-7:43 pm

1 stop5h 08m

$275

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Mon 5/4

12:26 pm-10:59 pm

1 stop9h 33m

Billings Logan Intl

Thu 5/7

12:49 pm-4:46 pm

1 stop4h 57m

$338

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sat 4/4

8:59 pm-11:58 pm

1 stop25h 59m

Billings Logan Intl

Sat 4/11

12:34 pm-4:29 pm

1 stop4h 55m

$384

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Thu 1/15

5:45 am-11:06 am

1 stop4h 21m

Billings Logan Intl

Sun 1/18

5:15 am-9:00 am

1 stop4h 45m

$417

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sun 1/25

5:05 pm-10:31 pm

1 stop4h 26m

$138

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sun 1/25

7:14 pm-9:49 am

1 stop13h 35m

$156

San FranciscoBillings

SFO - BIL

SFOBIL

San Francisco

Sun 1/25

9:54 pm-11:36 pm

2 stops24h 42m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Compare providers for flights from San Francisco to Billings

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	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 San Francisco-Billings flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Billings flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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

How far ahead should I book a flight from San Francisco to Billings?

The price you pay for your flight from San Francisco to Billings may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, July is the cheapest month in which you can book a flight from San Francisco to Billings (average of $190). Flying from San Francisco to Billings in November is currently the most expensive (average of $363). 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 Billings

Get a feel of what it's like to fly with Alaska Airlines, Delta, and United 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.

Alaska Airlines

8.0

Very good

11,554 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Alaska Airlines

8.0

Very good

11,554 reviews

Alaska Airlines

8.0

Very good

11,554 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.9

Good

8,016 reviews

Alaska Airlines

8.0

Very good

11,554 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

United Airlines

7.4

Good

9,114 reviews

Alaska Airlines

8.0

Very good

11,554 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

How long is the flight from San Francisco to Billings?
There are many flights that can get you from San Francisco to Billings in 4h 21m. Fly via Alaska Airlines or Delta to get the fastest option. Airlines will cover a distance of 908 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from San Francisco to Billings round-trip?
Delta, at $254, was found to be the cheapest airline from San Francisco to Billings.Alternate airlines to your destination round-trip include Alaska Airlines and United Airlines. These flights start at 39% lower than the current average price 3 months from now.
Can I find deals for flights from San Francisco to Billings that include hotel bookings?
Yes. In addition to deals on San Francisco to Billings flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Billings?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Billings.
Can I find deals for business class flights from San Francisco to Billings?
Yes. Cheapflights offers flight deals from San Francisco to Billings 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 San Francisco to Billings?
Currently, July is the cheapest month in which you can book a flight from San Francisco to Billings (average of $190). Flying from San Francisco to Billings in November is currently the most expensive (average of $363). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Francisco to Billings

Los Angeles to Bozeman flights

San Francisco to Bozeman flights

Ontario to Bozeman flights

San Francisco to Kalispell flights

Santa Ana to Bozeman flights

San Diego to Kalispell flights

San Luis Obispo to Bozeman flights

San Diego to Bozeman flights

San Diego to Helena flights

Los Angeles to Kalispell flights

Los Angeles to Missoula flights

Las Vegas to Bozeman flights

Sacramento to Bozeman flights

San Jose to Bozeman flights

Santa Ana to Kalispell flights

Reno to Bozeman flights

Santa Ana to Missoula flights

Ontario to Kalispell flights

Burbank to Bozeman flights

San Jose to Kalispell flights

San Diego to Missoula flights

Las Vegas to Kalispell flights

Ontario to Missoula flights

San Francisco to Missoula flights

Sacramento to Kalispell flights

Los Angeles to Billings flights

Oakland to Bozeman flights

Ontario to Billings flights

Burbank to Kalispell flights

San Jose to Helena flights

Long Beach to Bozeman flights

Oakland to Kalispell flights

Fresno to Bozeman flights

Palm Springs to Bozeman flights

San Diego to Great Falls flights

San Luis Obispo to Missoula flights

Sacramento to Missoula flights

San Francisco to Helena flights

Burbank to Missoula flights

Medford to Great Falls flights

Oakland to Missoula flights

Fresno to Kalispell flights

Reno to Kalispell flights

Fresno to Billings flights

Los Angeles to Great Falls flights

Reno to Great Falls flights

Las Vegas to Billings flights

Long Beach to Kalispell flights

San Diego to Billings flights

Other flights to Billings

Top 3 airlines flying from San Francisco to Billings

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$254	Average$349	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$271	Average$532	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$299	Average$412	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$138+ Cheap flights from San Francisco to Billings (SFO - BIL)

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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Billings with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Francisco to Billings

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 December 28, 2025.

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 December 28, 2025.

Find flight deals from San Francisco to Billings

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Billings that are best for you.

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 December.

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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Billings

How far ahead should I book a flight from San Francisco to Billings?

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

Reviews of airlines servicing Billings

Get a feel of what it's like to fly with Alaska Airlines, Delta, and United 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.

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.

How long is the flight from San Francisco to Billings?

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

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

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

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

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

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 for San Francisco to Billings

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from San Francisco to Billings

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco to Billings
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 December 28, 2025.