San José

$167+ 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
Jan 11 — Jan 181
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1. Tell us where you want to go

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2. Select your favorite providers

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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 January or October, booked 17 days in advance, depart on a Sunday or Wednesday and return on a Tuesday

Cheap 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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/171:50 pmBOI - SJO
2 stops27h 26mUnited Airlines
Mon 12/2912:35 pmSJO - BOI
2 stops22h 26mUnited Airlines
Deal found 12/10$729
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:12 pmBOI - SJO
1 stop27h 48mUnited Airlines
Tue 12/306:30 amSJO - BOI
2 stops32h 06mUnited Airlines
Deal found 12/11$927
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:00 amBOI - SJO
1 stop14h 45mAmerican Airlines
Tue 12/307:00 amSJO - BOI
1 stop16h 59mAmerican Airlines
Deal found 12/11$948
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/215:12 pmBOI - SJO
2 stops24h 04mUnited Airlines
Sat 12/277:30 amSJO - BOI
1 stop14h 56mUnited Airlines
Deal found 12/10$968
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:40 amBOI - SJO
1 stop11h 34mAmerican Airlines
Mon 12/2912:34 amSJO - BOI
1 stop13h 03mAmerican Airlines
Deal found 12/10$1,008
This deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:55 pmBOI - SJO
1 stop12h 37mUnited Airlines
Mon 1/57:30 amSJO - BOI
1 stop11h 33mUnited Airlines
Deal found 12/10$1,087

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$302
(American Airlines)

One-way from

$167
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$968
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flight deals.
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flights.
From Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
One-way flight from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
Highest demand for flights based on searches. 5% potential increase in price ($32 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 12, 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

Thu 3/5

8:16 am-11:15 pm

2 stops13h 59m

San José Juan Santamaria Intl

Wed 3/11

3:05 pm-12:44 pm

2 stops21h 39m

$363

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 1/24

7:02 pm-8:40 am

2 stops12h 38m

San José Juan Santamaria Intl

Sat 1/31

6:00 am-11:02 pm

2 stops18h 02m

$380

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 3/5

5:40 am-12:07 am

2 stops17h 27m

San José Juan Santamaria Intl

Tue 3/10

1:28 am-12:44 pm

1 stop11h 16m

$420

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 1/7

2:37 pm-12:56 pm

2 stops21h 19m

San José Juan Santamaria Intl

Wed 1/14

8:45 am-10:06 am

2 stops26h 21m

$526

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 1/24

10:28 am-12:56 pm

2 stops25h 28m

San José Juan Santamaria Intl

Sun 2/1

6:40 am-11:25 am

2 stops29h 45m

$526

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 1/6

5:16 pm-12:56 pm

2 stops42h 40m

San José Juan Santamaria Intl

Tue 1/13

2:20 pm-10:06 am

2 stops20h 46m

$541

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 1/29

1:58 pm-11:43 pm

1 stop8h 45m

$167

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 1/29

7:05 am-11:15 pm

2 stops15h 10m

$217

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 1/29

2:37 pm-12:56 pm

2 stops21h 19m

$217

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 12/15

5:50 am-10:20 pm

2 stops15h 30m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 13 results
1
2

Compare providers for flights from Boise to San José

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to San José in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-San José flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-San José flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-San José flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-San José flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-San José flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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 December 5, 2025.

The price you pay for your flight from Boise to San José may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Boise to San José (average of $162). Flying from Boise to San José in December is currently the most expensive (average of $575). 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 December 12, 2025.

It’s typically best to fly out from Boise to San José in the evening. Doing so could potentially save you 19% 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?

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 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.

How much does it cost to fly round-trip from Boise to San José?

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 December 12, 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.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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?

    Departing from Boise to San José will take you 17h 27m. The distance from Boise to San José is about 3008 mi.

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

    According to our current data, Delta ($141), United Airlines ($297), and American Airlines ($317) offers the cheapest pricing from Boise to San José. Delta is priced at 75% 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?

    Currently, October is the cheapest month in which you can book a flight from Boise to San José (average of $162). Flying from Boise to San José in December is currently the most expensive (average of $575). 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
Manuel Antonio
Alajuela
Monteverde
Jacó
Heredia
Dominical

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$815FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$303Average$568FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$566FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$376Average$682FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$454Average$752FlexibilityNo cancel feeOn-time63%

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