$42 Cheap Flights from San Jose (SJC) to Boise (BOI)

View $42 flight on Tue, Aug 19, 2025Opens in a new window

Popular airlines from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)

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Cheap Flights from San Jose to Boise (SJC-BOI)

Prices were available within the past 7 days and start at $42 for one-way flights and $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Sep 6 - Tue, Sep 9
SJC
San Jose
BOI
Boise
$83 Roundtrip, found 1 day ago
$83
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 6 from San Jose to Boise, returning Tue, Sep 9, priced at $83 found 1 day ago
Hawaiian Airlines
Sat, Oct 4 - Sat, Oct 25
SJC
San Jose
BOI
Boise
$83 Roundtrip, found 17 hours ago
$83
Roundtrip
found 17 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 4 from San Jose to Boise, returning Sat, Oct 25, priced at $83 found 17 hours ago
Alaska Airlines
Wed, Oct 1 - Wed, Oct 8
SJC
San Jose
BOI
Boise
$83 Roundtrip, found 16 hours ago
$83
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Wed, Oct 1 from San Jose to Boise, returning Wed, Oct 8, priced at $83 found 16 hours ago
Southwest Airlines
Wed, Oct 1 - Wed, Oct 8
SJC
San Jose
BOI
Boise
$84 Roundtrip, found 3 days ago
$84
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Oct 1 from San Jose to Boise, returning Wed, Oct 8, priced at $84 found 3 days ago
Southwest Airlines
Wed, Aug 13 - Sat, Aug 16
SJC
San Jose
BOI
Boise
$93 Roundtrip, found 1 day ago
$93
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Aug 13 from San Jose to Boise, returning Sat, Aug 16, priced at $93 found 1 day ago
Southwest Airlines
Tue, Sep 16 - Mon, Sep 22
SJC
San Jose
BOI
Boise
$94 Roundtrip, found 4 days ago
$94
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Tue, Sep 16 from San Jose to Boise, returning Mon, Sep 22, priced at $94 found 4 days ago
Southwest Airlines
Tue, Aug 12 - Tue, Aug 26
SJC
San Jose
BOI
Boise
$98 Roundtrip, found 2 days ago
$98
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Aug 12 from San Jose to Boise, returning Tue, Aug 26, priced at $98 found 2 days ago
Southwest Airlines
Wed, Aug 27 - Sat, Sep 6
SJC
San Jose
BOI
Boise
$101 Roundtrip, found 1 day ago
$101
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Aug 27 from San Jose to Boise, returning Sat, Sep 6, priced at $101 found 1 day ago
Delta
Wed, Aug 13 - Sat, Aug 16
SJC
San Jose
BOI
Boise
$113 Roundtrip, found 1 day ago
$113
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 13 from San Jose to Boise, returning Sat, Aug 16, priced at $113 found 1 day ago
Spirit Airlines
Thu, Sep 25 - Sun, Sep 28
SJC
San Jose
BOI
Boise
$168 Roundtrip, found 2 hours ago
$168
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Thu, Sep 25 from San Jose to Boise, returning Sun, Sep 28, priced at $168 found 2 hours ago

Find the cheapest month to fly from San Jose (SJC) to Boise (BOI)

September is typically the cheapest month to fly

From $79 - $246 per traveler.

Graph displaying average flight prices per month

Flights from San Jose (SJC) to Boise (BOI)
Origin airport
Norman Y. Mineta San Jose Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$83
Distance
522 mi
Average flight time
2 hours 35 mins

San Jose to Boise Flights

The cheapest times to fly from San Jose 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 Jose to Boise are during the month of September. You can find some of the cheapest flights from San Jose to Boise with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Jose 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 Jose 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 Jose to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $42 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 Jose 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 Jose 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 Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI) cost?
You can book cheap return flights starting from $137 from Norman Y. Mineta San Jose Intl. Airport (SJC) 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 and Southwest Airlines flight leaving SJC on July 30 2025 and touching down at BOI. The price was last updated on July 7 2025 and has not changed since.
What is the cheapest month to fly from SJC to BOI?
The cheapest flights from SJC 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 Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
When departing from Norman Y. Mineta San Jose Intl. Airport (SJC), you can hop on a nonstop flight to Boise Airport (BOI) with Southwest Airlines.
What is the cheapest airline that flies from SJC to BOI?
Currently, the cheapest airline offering one-way flights from SJC to BOI is Southwest Airlines. You can book a seat on this route from $69. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SJC on October 1 2025. Prices were last updated on July 7 2025 and have not changed since.
How many flights per day from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
On average, there's only 1 direct flight leaving from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI) per day. If this doesn't work for you, check out flights with layovers. Just customize your search on Expedia to include one stop or more to discover the next best option.
What are the most popular departure times for flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
Flights between SJC and BOI tend to be busiest at 6 PM. If you'd like a more relaxed atmosphere and possibly cheaper fares, look for a departure that's outside typical rush times.
What day of the week has the most flights from SJC to BOI?
Friday offers the most flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI). Consider jetting off on this day and you'll have the best chance of finding a schedule that works for you.
What is the earliest flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
Norman Y. Mineta San Jose Intl. Airport (SJC)'s first flight to Boise Airport (BOI) takes off at approximately 11:35AM UTC-8. With a flight time of 1h 35m, you'll touch down at around 2:10PM UTC-7.
How long does it take to fly from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
The average flight time from SJC to BOI is 1 hour and 38 minutes, covering a total distance of 520 mi.
What airline has the least delays from SJC to BOI?
With 92% of journeys generally arriving on schedule, Southwest Airlines has the best on-time performance for nonstop flights from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI). To check your flight status and get notifications about any changes, use the Expedia App.
What is the best time to fly from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
To reach Boise Airport (BOI) without delays, pick a flight that takes off from Norman Y. Mineta San Jose Intl. Airport (SJC) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Norman Y. Mineta San Jose Intl. Airport (SJC)?
Check out your flight options from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI). This is the only airport in Boise you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI) last-minute?
Last-minute bookings from SJC to BOI are usually more expensive. For the lowest rates, start looking for flights as early as possible. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a SJC to BOI flight and hotel package?
Opting for a SJC to BOI flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Norman Y. Mineta San Jose Intl. Airport (SJC) to Boise Airport (BOI)?
If you booked your SJC to BOI flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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