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San José

$144+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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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 enero 26, 2026.

This Trip.com deal was found by Cheapflights users on 1/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/98:11 am
BOI
-
SJO
2 stops15h 04m
Multiple Airlines
jue. 5/215:45 am
SJO
-
BOI
2 stops17h 13m
Multiple Airlines
Deal found 1/26$323
This United Airlines deal was found by Cheapflights users on 1/26. 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.
lun. 10/266:55 pm
BOI
-
SJO
1 stop12h 37m
United Airlines
sáb. 10/316:30 am
SJO
-
BOI
2 stops14h 45m
United Airlines
Deal found 1/26$350
This United Airlines deal was found by Cheapflights users on 1/24. 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.
lun. 4/275:29 pm
BOI
-
SJO
2 stops16h 42m
United Airlines
lun. 5/48:45 am
SJO
-
BOI
1 stop10h 28m
United Airlines
Deal found 1/24$353
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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. 5/166:35 am
BOI
-
SJO
2 stops16h 58m
Alaska Airlines
mar. 6/212:53 am
SJO
-
BOI
2 stops16h 16m
Alaska Airlines
Deal found 1/25$364
This United Airlines deal was found by Cheapflights users on 1/25. 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.
mar. 5/194:20 pm
BOI
-
SJO
1 stop14h 55m
United Airlines
mar. 6/28:45 am
SJO
-
BOI
1 stop12h 45m
United Airlines
Deal found 1/25$374
This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/128:11 am
BOI
-
SJO
2 stops15h 04m
Multiple Airlines
mar. 5/195:05 am
SJO
-
BOI
2 stops17h 53m
Multiple Airlines
Deal found 1/26$376
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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. 5/199:00 am
BOI
-
SJO
2 stops14h 33m
Alaska Airlines
mar. 6/212:53 am
SJO
-
BOI
2 stops35h 54m
Alaska Airlines
Deal found 1/26$377
This Avianca deal was found by Cheapflights users on 1/25. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/198:02 am
BOI
-
SJO
2 stops15h 13m
Multiple Airlines
mar. 6/25:45 am
SJO
-
BOI
2 stops17h 13m
Multiple Airlines
Deal found 1/25$382
This Expedia deal was found by Cheapflights users on 1/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/267:14 pm
BOI
-
SJO
2 stops13h 31m
Multiple Airlines
dom. 5/33:10 pm
SJO
-
BOI
2 stops21h 24m
Multiple Airlines
Deal found 1/24$387
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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.
dom. 5/174:19 pm
BOI
-
SJO
2 stops31h 14m
Alaska Airlines
mié. 6/312:53 am
SJO
-
BOI
2 stops38h 34m
Alaska Airlines
Deal found 1/25$390
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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. 5/166:35 am
BOI
-
SJO
2 stops16h 58m
Alaska Airlines
lun. 6/112:53 am
SJO
-
BOI
2 stops16h 48m
Alaska Airlines
Deal found 1/25$393

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 enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$383
(United Airlines)

One-way from

$144
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$344
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San José Juan Santamaria Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
Search Deals
One-way flight from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 26, 2026.
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

lun. 4/27

4:05 pm-7:15 am

1 stop15h 10m

San José Juan Santamaria Intl

lun. 5/4

8:45 am-7:13 pm

1 stop10h 28m

$353

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 5/16

6:35 am-11:33 pm

2 stops16h 58m

San José Juan Santamaria Intl

mié. 6/3

12:53 am-11:02 am

2 stops34h 09m

$377

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

lun. 5/18

9:00 am-11:33 pm

2 stops14h 33m

San José Juan Santamaria Intl

dom. 5/31

12:53 am-12:47 pm

2 stops35h 54m

$377

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

dom. 5/17

4:19 pm-11:33 pm

2 stops31h 14m

San José Juan Santamaria Intl

dom. 5/31

12:53 am-12:47 pm

2 stops35h 54m

$390

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mar. 5/19

6:35 am-11:33 pm

2 stops16h 58m

San José Juan Santamaria Intl

lun. 6/8

12:53 am-11:58 pm

2 stops23h 05m

$393

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

lun. 5/18

6:35 am-11:33 pm

2 stops16h 58m

San José Juan Santamaria Intl

lun. 6/1

12:53 am-3:27 pm

2 stops14h 34m

$393

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

sáb. 4/25

7:03 pm-7:15 am

1 stop12h 12m

San José Juan Santamaria Intl

vie. 5/1

8:45 am-7:13 pm

1 stop10h 28m

$397

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mar. 5/19

6:35 am-11:33 pm

2 stops16h 58m

San José Juan Santamaria Intl

jue. 6/4

12:53 am-5:41 pm

2 stops40h 48m

$406

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

lun. 5/18

9:00 am-11:33 pm

2 stops14h 33m

San José Juan Santamaria Intl

vie. 5/29

12:53 am-12:47 pm

2 stops35h 54m

$406

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mar. 5/19

9:00 am-11:33 pm

2 stops14h 33m

San José Juan Santamaria Intl

vie. 5/29

12:53 am-12:47 pm

2 stops35h 54m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 20 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-San José flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

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 $568). 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.

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 enero 26, 2026.
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
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,792 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,268 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,111 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,199 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,189 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 15h 10m. The distance from Boise to San José is about 3008 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 ($303) 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 $568). 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
Alajuela
Monteverde
Jacó
Heredia
Dominical
Manuel Antonio

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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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$815FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$297Average$544FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$303Average$547FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$376Average$686FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$454Average$710FlexibilityNo cancel feeOn-time63%

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