BOI - SJO

$394 Find Cheap Flights from Boise to San José - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to San José departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to San José, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to San José, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$394
Typical prices: $500-$376
Multiple Airlines
Sat 10/3Sat 10/10
BOI - SJO • 2 stops
Cheapest one-way
$659
Typical prices: $226-$299
American Airlines
Wed 8/26
BOI - SJO • 2 stops
Top airlines
Cheapest • from $470 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and San José. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $505 (round-trip)
Shortest trip • 9h 24m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San José!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to San José (BOI-SJO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to San José that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to San José

Sat, Oct 3 - Sat, Oct 10
Multiple Airlines Logo
7:26 am - 11:15 pm
BOI
-
SJO
15h 49m
2 stops
Multiple Airlines Logo
5:45 am - 10:57 pm
SJO
-
BOI
17h 12m
2 stops
$394Multiple Airlines
Tue, Sep 22 - Sun, Sep 27
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
5:05 am - 11:00 pm
SJO
-
BOI
17h 55m
2 stops
$402Multiple Airlines
Tue, Sep 22 - Sun, Sep 27
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
12:40 pm - 12:33 pm
SJO
-
BOI
23h 53m
3 stops
$403Multiple Airlines
Tue, Sep 22 - Sun, Sep 27
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
5:05 am - 11:00 pm
SJO
-
BOI
17h 55m
2 stops
$417Multiple Airlines
Tue, Aug 4 - Sat, Aug 15
Multiple Airlines Logo
8:03 am - 11:15 pm
BOI
-
SJO
15h 12m
2 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$426Multiple Airlines
Sat, Oct 10 - Sat, Oct 17
Multiple Airlines Logo
7:26 am - 11:15 pm
BOI
-
SJO
15h 49m
2 stops
Multiple Airlines Logo
12:40 pm - 12:28 pm
SJO
-
BOI
23h 48m
3 stops
$435Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
5:45 am - 11:00 pm
SJO
-
BOI
17h 15m
2 stops
$450Multiple Airlines
Tue, Sep 22 - Sun, Sep 27
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
12:40 pm - 12:33 pm
SJO
-
BOI
23h 53m
3 stops
$457Multiple Airlines
Mon, Aug 3 - Sat, Aug 15
Multiple Airlines Logo
8:03 am - 11:40 pm
BOI
-
SJO
15h 37m
2 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$465Multiple Airlines
Wed, Aug 5 - Sat, Aug 15
Multiple Airlines Logo
6:51 pm - 11:15 pm
BOI
-
SJO
28h 24m
2 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$466Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boise to San José flights

Get data-powered insights and trends into flights from Boise to San José to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boise to San José?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to San José departing in October.

What is the cheapest month to fly from Boise to San José?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to San José, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to San José is January, where tickets cost $330 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $986 and $719 respectively.

How far in advance should I book a flight from Boise to San José?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to San José, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to San José, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$394
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Boise to San José

When to book flights from Boise to San José

Are your dates flexible? Find out the best times to travel from Boise to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to San José

  • What is the cheapest flight from Boise to San José?

    In the last 5 days, the lowest price for a flight from Boise to San José was $659 for a one-way ticket and $394 for a round-trip.

  • Do I need a passport to fly between Boise and San José?

    A passport is required to fly from Boise to San José.

  • Which aircraft models fly most regularly from Boise to San José?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to San José?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Boise and San José, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Boise to San José, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to San José are Southwest and Alaska Airlines. With an average price for the route of $695 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $686 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boise to San José?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to San José?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San José with an airline and back to Boise with another airline. Booking your flights between Boise and SJO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to San José?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San José from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Boise to San José?

    In the past 5 days, the cheapest round-trip tickets from Boise to San José were found on United Airlines ($470) and American Airlines ($588).

Reviews of the top 5 airlines serving from Boise to San José

 
See real verified KAYAK customer reviews for airlines flying from Boise to San José. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to San José? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4256 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Flight was delayed and we were left in the plane with planed turned off, took so long to get to destination and luggages were lost. Such a hectic travel

Wish there were more complimentary drinks available - only had water and apple juice. Also - no snacks were provided during the flight, but we were offered some items as we exited the plane.

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Flight was delayed, but not be a lot. Crew at the departure gate was friendly. Flight was filled with turbulence, enough to concern my husband. Snacks were delivered to rows in front of us but attendant stopped handing out snacks when she got to our row. Team was efficient but lackadaisical. Usually on board crews are more animated and friendly. No onboard entertainment and no seatback video screens for a six hour flight. Landing was a bit rough. We were told the wrong turnstile for luggage.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Very short leg - too short for any meals/snacks or entertainment.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

Super impressed by staff courtesy, and assistance, Flight was one of the best I've had despite turbulence... Will definitely be flying Alaskan air as my preferred choice

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

My boarding passes were pulled from my Apple wallet and my 3 family members who were all sitting together in the same row all got put middle seats and were one of the last to board and barely were able to get our bags in the luggage bins.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

The crew were efficient. The pilots seemed professional. It was a bit chilly in our seats. The sheet provided weren’t very helpful.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

My pillow had a shoe print on it, when I asked if I can have another pillow, I was told “I’m sorry but it is one pillow per guest, do YOU want to turn it inside out” to which I responded , no thanks I will go without. This is generally not ok, but For the price tag I paid flying business this is absolutely unacceptable. Hopefully American Airlines can update their accommodations to bedding that is not tossed on the ground and stepped on, or at least have a couple of extra pillows in hand, incase someone had decided to step on the pillows for what ever reason

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

Everything you need to know for your flight from Boise to San José

Information on your arrival and departure airports