BOI - SJO

$142 Find Cheap Flights from Boise to San José

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to San José departing on 9/2. 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

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
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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

Tue, Oct 14 - Fri, Oct 31
American Airlines Logo
7:00 am - 6:16 pmBOI-SJO
11h 16m1 stop
American Airlines Logo
6:44 am - 10:15 pmSJO-BOI
15h 31m1 stop
$316American Airlines
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Wed, Oct 8 - Wed, Oct 29
American Airlines Logo
1:33 pm - 12:00 pmBOI-SJO
22h 27m2 stops
American Airlines Logo
6:44 am - 7:37 pmSJO-BOI
12h 53m2 stops
$320American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 29
American Airlines Logo
1:33 pm - 6:16 pmBOI-SJO
28h 43m1 stop
American Airlines Logo
6:44 am - 10:15 pmSJO-BOI
15h 31m1 stop
$323American Airlines
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Fri, Aug 8 - Thu, Aug 14
United Airlines Logo
4:40 pm - 5:30 amBOI-SJO
12h 50m1 stop
United Airlines Logo
8:45 am - 4:40 pmSJO-BOI
31h 55m1 stop
$442United Airlines
Find Deal
Fri, Aug 8 - Thu, Aug 14
United Airlines Logo
7:15 pm - 10:11 amBOI-SJO
14h 56m2 stops
United Airlines Logo
8:45 am - 4:40 pmSJO-BOI
31h 55m1 stop
$447United Airlines
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Tue, Jan 6 - Mon, Jan 12
Alaska Airlines Logo
8:30 pm - 11:00 pmBOI-SJO
25h 30m2 stops
Alaska Airlines Logo
2:26 am - 6:20 pmSJO-BOI
16h 54m2 stops
$483Alaska Airlines
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Fri, Aug 8 - Wed, Aug 13
Alaska Airlines Logo
5:43 pm - 11:30 pmBOI-SJO
29h 47m2 stops
Alaska Airlines Logo
12:50 am - 6:11 pmSJO-BOI
17h 21m2 stops
$498Alaska Airlines
Find Deal
Sun, Oct 12 - Fri, Oct 24
Southwest Logo
3:50 pm - 12:00 pmBOI-SJO
20h 10m2 stops
Southwest Logo
1:30 pm - 12:40 amSJO-BOI
11h 10m2 stops
$535Southwest
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Wed, Nov 5 - Tue, Nov 11
Copa Airlines Logo
2:11 pm - 4:40 pmBOI-SJO
25h 29m2 stops
Copa Airlines Logo
4:08 am - 10:45 pmSJO-BOI
19h 37m2 stops
$688Copa Airlines
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Wed, Nov 5 - Tue, Nov 11
Copa Airlines Logo
2:11 pm - 6:55 pmBOI-SJO
27h 44m2 stops
Copa Airlines Logo
4:08 am - 10:45 pmSJO-BOI
19h 37m2 stops
$722Copa Airlines
Find Deal
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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.

What’s the cheapest day of the week to fly from Boise to San José?

The average price of all round-trip flights from Boise to San José clicked on KAYAK for each day over the last 12 months.

When flying from Boise to San José, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to Boise, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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 September, where tickets cost $400 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $804 and $797 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 9 weeks before departure.

Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$142
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 27% 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 3 days, the lowest price for a flight from Boise to San José was $142 for a one-way ticket and $316 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, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Boise to San José are Alaska Airlines and Southwest. With an average price for the route of $686 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $691 and an overall rating of 8.0.

  • 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.

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
Alaska AirlinesOverall score based on 10000 reviews
8.1Boarding
8.5Crew
7.8Comfort
7.1Food
7.1Entertainment
Airline reviews

I purchased the internet during the flight and it stopped working after 1 hour, so I barely got to use it.

2.0 MediocreAnonymous, Jul 2025JFK - SAN
Read more Alaska Airlines reviews

I purchased the internet during the flight and it stopped working after 1 hour, so I barely got to use it.

Flight attendant was excellent, pleasant and attentive. Announcements were clear and pleasant.

seats good, foot space comfortable not good, waiting on tormack at Las Vegas

Our flight time was drastically changed which caused us to lose a day of vacation

There was no entertainment - perhaps they need to upgrade the planes that service a route that is more that 2 hours long? Otherwise, everything was perfect.

Paying for first class and then they want $8:00 for wifi.

6 hour flight from Seattle to Dulles airport without any WiFi and movies, as well as now snacks is crazy. We were told no WiFi and entertainment 5 hours before departure.

The most comfortable plane ride I’ve had in quite a while.

10 hour delay. Fuel spill. Crew had to drive to Indianapolis to a get a plane. The longest day of travel ever. Poor service.Little to no communication.

Wifi would be nice. Unfortunately the particular airplane was not equipped with wifi.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

The flighr attandants were very rude they ignored me didnt offer me anything to drink throughoit the 4 hour flight i feel i was targeted and ignored because i was a darkskin latino man.

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Very happy with my flight. I would definitely recommend it.

Did upgrade, travel in business it was great (more room I could sleep)

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

We had a five hour layover in the way home from Colombia. I read the "bout your flight" email carefully before we checked bags. We had to go through security right at the gate. Almost lost our ground coffee because that airport only allows 16 ounce of coffee and we had 18. I've been to 48 countries and never heard of a coffee restriction. I can't follow a rule I don't know about. I requested they bring our coffee to our checked luggage. Instead tey gate checked our bag for free. Back to planning transfers in Dallas I guess

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

Placed us in the last rear row of the plane so could not recline seats because of the rear wall, and also made it more of a tight space when the passenger in front reclined their seat. While understand seat assignments, every passenger should be afforded a reclining seat. The odor control scent from the restrooms was overwhelming strong. My wife and I could not deal with it, and she suffered a terrible headache as a result. I kept getting hit by the crew since I was on the ilse seat. No apologies, nothing. They made me feel like I was supposed to take the beating for a 3 hr flight.

There was no individual at the front check in when I arrived. I waited for at least 15 minutes and walked around asking security/janitors if they could help and they did not have a solution. So I had to take my checked bag through security and they threw away some of my items. I ended up making it to the gate only a few minutes before it closed due to my waiting for an agent at check in.

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

The food should improve! And The flight should leave on time and not make the traveler wait.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

We love united ! We would like to acknowledge Aimee in the lounge near gate 130

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

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

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