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Cheap flights from Boise to San José from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to San José departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boise to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:03 pm - 10:11 am
BOI
-
SJO
15h 08m
2 stops
United Airlines Logo
8:45 am - 7:53 pm
SJO
-
BOI
11h 08m
1 stop
$360United Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
6:26 pm - 11:35 am
BOI
-
SJO
17h 09m
2 stops
American Airlines Logo
2:22 pm - 1:03 pm
SJO
-
BOI
22h 41m
2 stops
$365American Airlines
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
8:11 am - 11:15 pm
BOI
-
SJO
15h 04m
2 stops
Multiple Airlines Logo
5:45 am - 11:01 pm
SJO
-
BOI
17h 16m
2 stops
$372Multiple Airlines
Tue, Apr 28 - Tue, May 5
American Airlines Logo
6:26 pm - 11:35 am
BOI
-
SJO
17h 09m
2 stops
American Airlines Logo
11:35 pm - 10:54 pm
SJO
-
BOI
23h 19m
1 stop
$379American Airlines
Mon, Apr 20 - Sun, May 10
American Airlines Logo
6:26 pm - 11:25 am
BOI
-
SJO
16h 59m
2 stops
American Airlines Logo
2:22 pm - 12:51 pm
SJO
-
BOI
22h 29m
2 stops
$382American Airlines
Sat, Apr 25 - Mon, May 11
United Airlines Logo
5:29 pm - 10:11 am
BOI
-
SJO
16h 42m
2 stops
United Airlines Logo
8:45 am - 7:53 pm
SJO
-
BOI
11h 08m
1 stop
$386United Airlines
Sat, Apr 11 - Mon, Apr 27
United Airlines Logo
7:03 pm - 10:11 am
BOI
-
SJO
15h 08m
2 stops
United Airlines Logo
8:45 am - 7:11 pm
SJO
-
BOI
10h 26m
1 stop
$389United Airlines
Fri, Apr 24 - Mon, May 11
United Airlines Logo
6:58 pm - 7:15 am
BOI
-
SJO
12h 17m
1 stop
United Airlines Logo
7:55 am - 10:15 pm
SJO
-
BOI
14h 20m
2 stops
$391United Airlines
Wed, Apr 15 - Wed, Apr 29
Alaska Airlines Logo
7:20 pm - 11:45 pm
BOI
-
SJO
28h 25m
2 stops
Alaska Airlines Logo
12:55 am - 11:02 pm
SJO
-
BOI
22h 07m
2 stops
$395Alaska Airlines
Tue, May 5 - Sun, May 10
Alaska Airlines Logo
8:11 am - 11:45 pm
BOI
-
SJO
15h 34m
1 stop
Alaska Airlines Logo
12:35 am - 3:34 pm
SJO
-
BOI
14h 59m
2 stops
$399Alaska Airlines
Wed, May 6 - Tue, May 12

United Airlines flights from Boise to San José

Our best United Airlines deals on Boise to San José flight tickets
United Airlines
Apr 20
BOI7:03 pmBoise Air Term. Gowen Fld
15h 08m
2 stops
SJO10:11 amSan José Juan Santamaria Intl
Apr 27
SJO8:45 amSan José Juan Santamaria Intl
11h 08m
1 stop
BOI7:53 pmBoise Air Term. Gowen Fld
$360
United Airlines
Apr 11
BOI5:29 pmBoise Air Term. Gowen Fld
16h 42m
2 stops
SJO10:11 amSan José Juan Santamaria Intl
Apr 27
SJO8:45 amSan José Juan Santamaria Intl
11h 08m
1 stop
BOI7:53 pmBoise Air Term. Gowen Fld
$386
United Airlines
Apr 24
BOI7:03 pmBoise Air Term. Gowen Fld
15h 08m
2 stops
SJO10:11 amSan José Juan Santamaria Intl
May 11
SJO8:45 amSan José Juan Santamaria Intl
10h 26m
1 stop
BOI7:11 pmBoise Air Term. Gowen Fld
$389

American Airlines flights from Boise to San José

Our best American Airlines deals on Boise to San José flight tickets
American Airlines
Apr 20
BOI6:26 pmBoise Air Term. Gowen Fld
17h 09m
2 stops
SJO11:35 amSan José Juan Santamaria Intl
Apr 27
SJO2:22 pmSan José Juan Santamaria Intl
22h 41m
2 stops
BOI1:03 pmBoise Air Term. Gowen Fld
$365
American Airlines
Apr 20
BOI6:26 pmBoise Air Term. Gowen Fld
17h 09m
2 stops
SJO11:35 amSan José Juan Santamaria Intl
May 10
SJO11:35 pmSan José Juan Santamaria Intl
23h 19m
1 stop
BOI10:54 pmBoise Air Term. Gowen Fld
$379
American Airlines
Apr 25
BOI6:26 pmBoise Air Term. Gowen Fld
16h 59m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
May 11
SJO2:22 pmSan José Juan Santamaria Intl
22h 29m
2 stops
BOI12:51 pmBoise Air Term. Gowen Fld
$382

momondo 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, momondo users made 832,500 searches. Data last updated March 2, 2026.
Use the filters below to find and compare flights from Boise to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 4/20

7:03 pm-10:11 am

2 stops15h 08m

San José Juan Santamaria Intl

Mon 4/27

8:45 am-7:53 pm

1 stop11h 08m

$360

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 4/20

6:26 pm-11:35 am

2 stops17h 09m

San José Juan Santamaria Intl

Mon 4/27

2:22 pm-1:03 pm

2 stops22h 41m

$365

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 4/28

8:11 am-11:15 pm

2 stops15h 04m

San José Juan Santamaria Intl

Tue 5/5

5:45 am-11:01 pm

2 stops17h 16m

$372

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 4/20

6:26 pm-11:35 am

2 stops17h 09m

San José Juan Santamaria Intl

Sun 5/10

11:35 pm-10:54 pm

1 stop23h 19m

$379

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 4/25

6:26 pm-11:25 am

2 stops16h 59m

San José Juan Santamaria Intl

Mon 5/11

2:22 pm-12:51 pm

2 stops22h 29m

$382

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 4/11

5:29 pm-10:11 am

2 stops16h 42m

San José Juan Santamaria Intl

Mon 4/27

8:45 am-7:53 pm

1 stop11h 08m

$386

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 4/24

7:03 pm-10:11 am

2 stops15h 08m

San José Juan Santamaria Intl

Mon 5/11

8:45 am-7:11 pm

1 stop10h 26m

$389

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 4/15

6:58 pm-7:15 am

1 stop12h 17m

San José Juan Santamaria Intl

Wed 4/29

7:55 am-10:15 pm

2 stops14h 20m

$391

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/5

7:20 pm-11:45 pm

2 stops28h 25m

San José Juan Santamaria Intl

Sun 5/10

12:55 am-11:02 pm

2 stops22h 07m

$395

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/6

8:11 am-11:45 pm

1 stop15h 34m

San José Juan Santamaria Intl

Tue 5/12

12:35 am-3:34 pm

2 stops14h 59m

$399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San José from

How to get the cheapest flight ticket from Boise to San José

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boise and San José?

What is the cheapest month to fly to San José?

In general, January is the cheapest month to fly from Boise to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $344. If you don’t want to visit San José in January, then you should wait until October to fly from Boise, when ticket prices are also cheap, with an average price of $431.

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

You are more likely to see cheaper flights to San José from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $568 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Boise for as low as $375 on momondo.

Can stopping save me money on Boise to San José flights?

You could potentially save up to 36% on your flight if you consider stops on a Boise to San José flight.

How have Boise to San José flight prices changed over time?

When to book flights from Boise to San José

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to San José according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to San José (BOI to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to San José

Fastest flight time

12h 48m

Direct flights

None
The fastest flight from Boise to San José takes 12h 48m
There are no direct flights from Boise to San José. There are no popular flight routes from Boise to San José.
Search flight deals

  • How far is Boise Air Term. Gowen Fld to San José Juan Santamaria Intl by plane?

    A flight from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl will travel around 3016.7 mi. In terms of flight time, this usually takes a little over 12h 48m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to San José Juan Santamaria Intl Airport are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to San José Juan Santamaria Intl Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The necessary travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boise to San José?

Best airlines flying from Boise to San José

Compare and see reviews for airlines that fly from Boise to San José with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $141Free CancellationRating
7.9
8,237 reviews
Search Delta flights
American AirlinesPriceFrom $297Free CancellationRating
7.1
11,369 reviews
Search American Airlines flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
9,375 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $376Free CancellationRating
8.0
11,974 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $454Free CancellationRating
8.0
4,306 reviews
Search Southwest flights

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Dominical
San Gerardo de Dota
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Boise to San José?

It is quick and easy to find Boise to San José flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San José that suits you.

Can I find flights from Boise to San José with flexible booking policies on momondo?

momondo does allow users to show only those flights to San José from Boise which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boise to San José?

Once you have performed a search for Boise to San José flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boise to San José right now. Can momondo alert me if prices change?

Price alerts on flights to San José from Boise are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San José trip

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