$67 Cheap Flights from San Francisco (SFO) to Boise (BOI)

View $67 flight on Wed, Dec 17, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)

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Cheap Flights from San Francisco to Boise (SFO-BOI)

Prices were available within the past 7 days and start at $67 for one-way flights and $114 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Sep 4 - Sat, Sep 6
SFO
San Francisco
BOI
Boise
$114 Roundtrip, found 4 days ago
$114
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from San Francisco to Boise, returning Sat, Sep 6, priced at $114 found 4 days ago
Southwest Airlines
Wed, Sep 3 - Tue, Sep 9
SFO
San Francisco
BOI
Boise
$114 Roundtrip, found 5 days ago
$114
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Sep 3 from San Francisco to Boise, returning Tue, Sep 9, priced at $114 found 5 days ago
Southwest Airlines
Thu, Sep 4 - Sat, Sep 6
SFO
San Francisco
BOI
Boise
$119 Roundtrip, found 4 days ago
$119
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from San Francisco to Boise, returning Sat, Sep 6, priced at $119 found 4 days ago
United
Thu, Sep 4 - Sat, Sep 6
SFO
San Francisco
BOI
Boise
$121 Roundtrip, found 4 days ago
$121
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 4 from San Francisco to Boise, returning Sat, Sep 6, priced at $121 found 4 days ago
United
Wed, Sep 3 - Tue, Sep 9
SFO
San Francisco
BOI
Boise
$121 Roundtrip, found 5 days ago
$121
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 3 from San Francisco to Boise, returning Tue, Sep 9, priced at $121 found 5 days ago
Southwest Airlines
Thu, Sep 4 - Sat, Sep 6
SFO
San Francisco
BOI
Boise
$124 Roundtrip, found 4 days ago
$124
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from San Francisco to Boise, returning Sat, Sep 6, priced at $124 found 4 days ago
Southwest Airlines
Fri, Oct 24 - Tue, Oct 28
SFO
San Francisco
BOI
Boise
$128 Roundtrip, found 6 days ago
$128
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Fri, Oct 24 from San Francisco to Boise, returning Tue, Oct 28, priced at $128 found 6 days ago
American Airlines
Thu, Sep 4 - Sat, Sep 6
SFO
San Francisco
BOI
Boise
$131 Roundtrip, found 4 days ago
$131
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 4 from San Francisco to Boise, returning Sat, Sep 6, priced at $131 found 4 days ago
Hawaiian Airlines
Tue, Sep 9 - Sat, Sep 20
SFO
San Francisco
BOI
Boise
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Hawaiian Airlines flight, departing Tue, Sep 9 from San Francisco to Boise, returning Sat, Sep 20, priced at $137 just found
Frontier Airlines
Wed, Jul 30 - Sun, Aug 17
SFO
San Francisco
BOI
Boise
$274 Roundtrip, found 1 day ago
$274
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Jul 30 from San Francisco to Boise, returning Sun, Aug 17, priced at $274 found 1 day ago

Find the cheapest month to fly from San Francisco (SFO) to Boise (BOI)

September is typically the cheapest month to fly

From $130 - $258 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $251
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $251
Flights from San Francisco (SFO) to Boise (BOI)
Origin airport
San Francisco Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$113
Distance
523 mi
Average flight time
2 hours 41 mins

San Francisco to Boise Flights

The cheapest times to fly from San Francisco to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Boise are during the month of September. You can find some of the cheapest flights from San Francisco to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Boise

Sunday is one of the best days to book for cheap flights from San Francisco to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $67 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Boise Airport (BOI) cost?
You can pick up cheap return flights starting from $137 from San Francisco Intl. Airport (SFO) to Boise Airport (BOI). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SFO on August 7 2025 and touching down at BOI. The price was last updated on July 13 2025 and has not changed since.
What is the cheapest month to fly from SFO to BOI?
The cheapest flights from SFO to BOI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
When departing from San Francisco Intl. Airport (SFO), you can hop on a nonstop flight to Boise Airport (BOI) with United Airlines.
What is the cheapest airline that flies from SFO to BOI?
With tickets starting at $69 for a one-way flight from SFO to BOI, United is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on October 8 2025. Prices were last updated on July 13 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
With, on average, 4 nonstop flights that operate from San Francisco Intl. Airport (SFO) to Boise Airport (BOI) each day, you'll be up in the air in no time.
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
More passengers fly between SFO and BOI at 8 AM than at any other point in the day. Rather go when it's quieter? Consider flying outside peak hours and you could save on your fare as well.
What day of the week has the most flights from SFO to BOI?
If you jet off on a Friday, you'll get the largest range of options for flights from San Francisco Intl. Airport (SFO) to Boise Airport (BOI).
What is the earliest flight from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
The first flight of the day jetting off from San Francisco Intl. Airport (SFO) is at around 8:35AM UTC-8. Catch this flight and you'll land at Boise Airport (BOI) at approximately 11:27AM UTC-7. The total travel time is 1h 52m.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
Flights from SFO to BOI have an average travel time of 1 hour and 49 minutes. The total distance between these two airports is 520 mi.
What airline has the least delays from SFO to BOI?
With 94% of flights generally arriving on time, American Airlines has the best on-time performance for nonstop flights from San Francisco Intl. Airport (SFO) to Boise Airport (BOI). To monitor your flight status and get notified about any changes, use the Expedia App.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Boise Airport (BOI) route, fly before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Boise from San Francisco Intl. Airport (SFO)?
Boise Airport (BOI) is the only airport in Boise with direct flights from San Francisco Intl. Airport (SFO). Check out the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Boise Airport (BOI) last-minute?
Waiting until just before your departure to book a ticket from SFO to BOI generally means paying more. While you may come across some last-minute deals, there's no guarantee. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book a SFO to BOI flight and hotel package?
You'll typically save money by securing a SFO to BOI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your preferred accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Boise Airport (BOI)?
If you reserved your SFO to BOI flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.