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Cheap flights from Boise to San José from $179

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 4/21. 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.
American Airlines Logo
4:05 pm - 1:09 pm
BOI
-
SJO
21h 04m
2 stops
American Airlines Logo
3:08 pm - 3:07 pm
SJO
-
BOI
23h 59m
2 stops
$405American Airlines
Tue, May 26 - Tue, Jun 2
Alaska Airlines Logo
6:54 pm - 11:33 pm
BOI
-
SJO
28h 39m
2 stops
Alaska Airlines Logo
12:53 am - 11:58 pm
SJO
-
BOI
23h 05m
2 stops
$418Alaska Airlines
Wed, May 27 - Tue, Jun 2
United Airlines Logo
7:05 pm - 7:15 am
BOI
-
SJO
12h 10m
1 stop
United Airlines Logo
8:45 am - 9:40 pm
SJO
-
BOI
12h 55m
1 stop
$420United Airlines
Tue, May 26 - Tue, Jun 2
Alaska Airlines Logo
9:02 am - 11:45 pm
BOI
-
SJO
14h 43m
2 stops
Alaska Airlines Logo
12:55 am - 9:42 am
SJO
-
BOI
32h 47m
2 stops
$445Alaska Airlines
Tue, May 5 - Thu, May 7
American Airlines Logo
4:07 pm - 11:56 am
BOI
-
SJO
19h 49m
2 stops
American Airlines Logo
2:12 pm - 11:21 am
SJO
-
BOI
21h 09m
1 stop
$455American Airlines
Mon, Jul 13 - Mon, Jul 20
United Airlines Logo
7:05 pm - 7:15 am
BOI
-
SJO
12h 10m
1 stop
United Airlines Logo
8:45 am - 9:40 pm
SJO
-
BOI
12h 55m
1 stop
$484United Airlines
Wed, May 27 - Wed, Jun 3
United Airlines Logo
7:03 pm - 7:15 am
BOI
-
SJO
12h 12m
1 stop
United Airlines Logo
6:00 am - 9:17 pm
SJO
-
BOI
15h 17m
2 stops
$487United Airlines
Sun, Apr 26 - Sat, May 2
American Airlines Logo
6:00 am - 9:36 pm
BOI
-
SJO
15h 36m
1 stop
American Airlines Logo
11:35 pm - 10:54 pm
SJO
-
BOI
23h 19m
1 stop
$491American Airlines
Thu, Apr 30 - Wed, May 6
Alaska Airlines Logo
6:00 am - 11:45 pm
BOI
-
SJO
17h 45m
2 stops
Alaska Airlines Logo
12:55 am - 11:59 pm
SJO
-
BOI
23h 04m
2 stops
$499Alaska Airlines
Tue, May 5 - Thu, May 7
Alaska Airlines Logo
7:33 pm - 11:33 pm
BOI
-
SJO
28h 00m
1 stop
Alaska Airlines Logo
12:53 am - 11:58 pm
SJO
-
BOI
23h 05m
2 stops
$507Alaska Airlines
Wed, May 27 - Tue, Jun 2

United Airlines flights from Boise to San José

Our best United Airlines deals on Boise to San José flight tickets
United Airlines
May 26
BOI7:05 pmBoise Air Term. Gowen Fld
12h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Jun 2
SJO8:45 amSan José Juan Santamaria Intl
12h 55m
1 stop
BOI9:40 pmBoise Air Term. Gowen Fld
$420
United Airlines
May 27
BOI7:05 pmBoise Air Term. Gowen Fld
12h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Jun 3
SJO8:45 amSan José Juan Santamaria Intl
12h 55m
1 stop
BOI9:40 pmBoise Air Term. Gowen Fld
$484
United Airlines
Apr 26
BOI7:03 pmBoise Air Term. Gowen Fld
12h 12m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
May 2
SJO6:00 amSan José Juan Santamaria Intl
15h 17m
2 stops
BOI9:17 pmBoise Air Term. Gowen Fld
$487

GOL flights from Boise to San José

Our best GOL deals on Boise to San José flight tickets
GOL
Apr 26
BOI1:29 pmBoise Air Term. Gowen Fld
21h 56m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
May 2
SJO12:10 pmSan José Juan Santamaria Intl
34h 44m
2 stops
BOI10:54 pmBoise Air Term. Gowen Fld
$512
GOL
Jun 13
BOI4:06 pmBoise Air Term. Gowen Fld
20h 53m
2 stops
SJO12:59 pmSan José Juan Santamaria Intl
Jun 26
SJO1:59 pmSan José Juan Santamaria Intl
21h 20m
2 stops
BOI11:19 amBoise Air Term. Gowen Fld
$542
GOL
Jun 13
BOI4:06 pmBoise Air Term. Gowen Fld
21h 03m
2 stops
SJO1:09 pmSan José Juan Santamaria Intl
Jun 26
SJO2:09 pmSan José Juan Santamaria Intl
21h 10m
1 stop
BOI11:19 amBoise Air Term. Gowen Fld
$553

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 April 13, 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

Cheapest round-trip

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/26

4:05 pm-1:09 pm

2 stops21h 04m

San José Juan Santamaria Intl

Tue 6/2

3:08 pm-3:07 pm

2 stops23h 59m

$405

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/27

6:54 pm-11:33 pm

2 stops28h 39m

San José Juan Santamaria Intl

Tue 6/2

12:53 am-11:58 pm

2 stops23h 05m

$418
Quickest round-trip

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/26

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Tue 6/2

8:45 am-9:40 pm

1 stop12h 55m

$420

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/5

9:02 am-11:45 pm

2 stops14h 43m

San José Juan Santamaria Intl

Thu 5/7

12:55 am-9:42 am

2 stops32h 47m

$445

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 7/13

4:07 pm-11:56 am

2 stops19h 49m

San José Juan Santamaria Intl

Mon 7/20

2:12 pm-11:21 am

1 stop21h 09m

$455

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/27

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Wed 6/3

8:45 am-9:40 pm

1 stop12h 55m

$484

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 4/26

7:03 pm-7:15 am

1 stop12h 12m

San José Juan Santamaria Intl

Sat 5/2

6:00 am-9:17 pm

2 stops15h 17m

$487

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 4/30

6:00 am-9:36 pm

1 stop15h 36m

San José Juan Santamaria Intl

Wed 5/6

11:35 pm-10:54 pm

1 stop23h 19m

$491

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/5

6:00 am-11:45 pm

2 stops17h 45m

San José Juan Santamaria Intl

Thu 5/7

12:55 am-11:59 pm

2 stops23h 04m

$499

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/27

7:33 pm-11:33 pm

1 stop28h 00m

San José Juan Santamaria Intl

Tue 6/2

12:53 am-11:58 pm

2 stops23h 05m

$507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $331. 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 $399.

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 $543 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 19% 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 10m

Direct flights

None
The fastest flight from Boise to San José takes 12h 10m
There are no direct flights from Boise to San José. There are no popular flight routes from Boise to San José.
Search flight deals

Frequently asked questions about flying from Boise to San José

  • 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 10m.

  • 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
8,410 reviews
Search Delta flights
American AirlinesPriceFrom $279Free CancellationRating
7.1
11,568 reviews
Search American Airlines flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $376Free CancellationRating
7.9
12,230 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $454Free CancellationRating
8.0
4,328 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
Santa Elena
Dominical
San Gerardo de Dota
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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