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San José

$133+ Cheap flights from Boise (BOI) to San José (SJO)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl are usually found in August or June, booked 55 days in advance, depart on a Sunday or Wednesday and return on a Tuesday

Cheap flight deals from Boise to San José

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$298
(United Airlines)

One-way from

$133
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$572
From Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
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One-way flight from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
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Highest demand for flights based on searches. 9% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Boise to San José

Cheapest flights from Boise to San José
Explore the most affordable flight options available from Boise to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/255:39 pmBOI - SJO
2 stops16h 46mUnited Airlines
sáb. 11/16:30 amSJO - BOI
1 stop11h 39mUnited Airlines
Deal found 9/10$298
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:54 amBOI - SJO
2 stops17h 44mAlaska Airlines
lun. 11/171:55 amSJO - BOI
2 stops21h 25mAlaska Airlines
Deal found 9/11$302
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/138:50 amBOI - SJO
2 stops14h 48mAlaska Airlines
dom. 11/161:55 amSJO - BOI
2 stops40h 16mAlaska Airlines
Deal found 9/10$314
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/112:44 pmBOI - SJO
1 stop16h 31mUnited Airlines
sáb. 10/257:55 amSJO - BOI
2 stops15h 47mUnited Airlines
Deal found 9/10$330
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/258:26 pmBOI - SJO
1 stop27h 25mAlaska Airlines
vie. 10/3112:55 amSJO - BOI
2 stops16h 16mAlaska Airlines
Deal found 9/10$339
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1311:35 pmBOI - SJO
1 stop12h 31mDelta
lun. 11/177:00 amSJO - BOI
2 stops18h 09mDelta
Deal found 9/11$341
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/147:09 pmBOI - SJO
1 stop12h 06mUnited Airlines
mar. 9/168:37 amSJO - BOI
1 stop14h 57mUnited Airlines
Deal found 9/10$358
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/247:05 pmBOI - SJO
1 stop12h 10mUnited Airlines
vie. 10/318:40 amSJO - BOI
1 stop14h 48mUnited Airlines
Deal found 9/10$376
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/137:00 amBOI - SJO
1 stop14h 59mAmerican Airlines
lun. 11/176:22 amSJO - BOI
1 stop17h 10mAmerican Airlines
Deal found 9/10$377
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:30 amBOI - SJO
2 stops29h 00mMultiple Airlines
jue. 10/301:11 amSJO - BOI
1 stop12h 29mMultiple Airlines
Deal found 9/10$382

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to San José that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Boise to San José that are best for you.

Fly from

Boise

Fly to

San José

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

jue. 11/13

7:00 pm-11:25 am

2 stops15h 25m

San José Juan Santamaria Intl

lun. 11/17

9:40 am-11:28 pm

1 stop14h 48m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

vie. 10/24

7:05 pm-12:26 pm

2 stops17h 21m

San José Juan Santamaria Intl

vie. 10/31

8:40 am-6:54 pm

1 stop10h 14m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 10/25

5:39 pm-10:25 am

2 stops16h 46m

San José Juan Santamaria Intl

sáb. 11/1

6:30 am-6:09 pm

1 stop11h 39m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 10/18

5:39 pm-12:26 pm

2 stops18h 47m

San José Juan Santamaria Intl

vie. 10/31

8:40 am-6:54 pm

1 stop10h 14m

$298

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

lun. 1/12

7:05 pm-8:32 am

1 stop12h 27m

San José Juan Santamaria Intl

mié. 1/21

8:45 am-11:48 pm

2 stops16h 03m

$317

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 10/11

2:44 pm-7:15 am

1 stop16h 31m

San José Juan Santamaria Intl

sáb. 10/25

7:55 am-11:42 pm

2 stops15h 47m

$330

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 10/25

8:26 pm-11:51 pm

1 stop27h 25m

San José Juan Santamaria Intl

vie. 10/31

12:55 am-5:11 pm

2 stops16h 16m

$339

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

jue. 11/13

11:35 pm-1:06 pm

1 stop12h 31m

San José Juan Santamaria Intl

lun. 11/17

7:00 am-12:09 am

2 stops18h 09m

$341

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

jue. 1/29

7:32 am-11:00 pm

1 stop14h 28m

$133

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

jue. 1/29

3:00 pm-12:55 pm

2 stops20h 55m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 14 results
1
2

Best time to book a flight from Boise to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Boise 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 Boise to San José

How far ahead should I book a flight from Boise to San José, San José Province?

Use this chart to determine the optimal time to book a round-trip flight from Boise to San José. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Boise to San José, San José Province, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boise to San José, San José Province?

Currently, September is the cheapest month in which you can book a flight from Boise to San José, San José Province (average of $398). Flying from Boise to San José, San José Province in March is currently the most expensive (average of $555). 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.

What is the cheapest time of day to fly from BOI to SJO?

Find hourly flight availability from Boise to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

It’s typically best to fly out from Boise to San José, San José Province in the evening. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Boise to San José, San José Province?

Use this chart to determine the cheapest time to fly round-trip from Boise to San José. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to San José, San José Province flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San José. Reviews last updated septiembre 11, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Boise to San José have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Boise to San José. 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 Boise to San José, San José Province?

    For as low as $298, United Airlines can have you in San José, San José Province from Boise in 15h 25m. The distance between Boise and San José, San José Province is about 3008 mi.

  • What are the cheapest airlines flying from Boise to San José, San José Province round-trip?

    Flying on Delta is currently your cheapest option to San José, San José Province, with prices starting at $141. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $404 and $430, respectively. Delta is priced at 77% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Boise to San José that include hotel bookings?

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

  • How can I find direct flights from Boise to San José?

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

  • Can I find deals for business class flights from Boise to San José?

    Yes. Cheapflights offers flight deals from Boise to San José 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 Boise to San José, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Boise to San José, San José Province (average of $398). Flying from Boise to San José, San José Province in March is currently the most expensive (average of $555). 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

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Heredia
Manuel Antonio
Alajuela
Monteverde
Jacó

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Top 5 airlines flying from Boise to San José

Discover the top 5 airlines that operate flights from Boise to San José. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$1,005FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$404Average$651FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$430Average$688FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$439Average$615FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$559Average$723FlexibilityNo cancel feeOn-time63%

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