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Cheap flights from Boise to San José from $302

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to San José departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boise to San José

Cheap round-trip flights

American Airlines Logo
1:57 pm - 11:12 amBOI-SJO
21h 15m2 stops
American Airlines Logo
6:00 am - 9:48 pmSJO-BOI
15h 48m2 stops
$302American Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
Alaska Airlines Logo
7:30 am - 11:00 pmBOI-SJO
14h 30m1 stop
Alaska Airlines Logo
2:26 am - 12:04 pmSJO-BOI
10h 38m1 stop
$307Alaska Airlines
Find Deal
Wed, Jan 21 - Tue, Jan 27
Alaska Airlines Logo
7:00 pm - 11:00 pmBOI-SJO
27h 00m1 stop
Alaska Airlines Logo
2:26 am - 12:04 pmSJO-BOI
10h 38m1 stop
$313Alaska Airlines
Find Deal
Tue, Jan 20 - Wed, Jan 28
Delta Logo
3:00 pm - 12:55 pmBOI-SJO
20h 55m2 stops
Delta Logo
8:25 am - 11:58 pmSJO-BOI
16h 33m2 stops
$320Delta
Find Deal
Thu, Jan 8 - Sat, Jan 17
Alaska Airlines Logo
10:15 am - 7:04 pmBOI-SJO
56h 49m2 stops
Alaska Airlines Logo
1:11 am - 10:20 pmSJO-BOI
21h 09m2 stops
$323Alaska Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 28
Alaska Airlines Logo
10:15 am - 7:04 pmBOI-SJO
56h 49m2 stops
Alaska Airlines Logo
1:11 am - 1:40 pmSJO-BOI
12h 29m1 stop
$332Alaska Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 28
American Airlines Logo
7:32 am - 2:10 pmBOI-SJO
29h 38m2 stops
American Airlines Logo
3:50 pm - 12:34 pmSJO-BOI
21h 44m2 stops
$362American Airlines
Find Deal
Wed, Jan 14 - Thu, Jan 22
Delta Logo
11:35 pm - 12:08 pmBOI-SJO
12h 33m1 stop
Delta Logo
1:35 pm - 3:04 pmSJO-BOI
25h 29m2 stops
$363Delta
Find Deal
Fri, Sep 12 - Fri, Sep 19
United Airlines Logo
2:45 pm - 7:15 amBOI-SJO
16h 30m1 stop
United Airlines Logo
8:37 am - 7:09 pmSJO-BOI
10h 32m1 stop
$400United Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
United Airlines Logo
2:44 pm - 7:15 amBOI-SJO
16h 31m1 stop
United Airlines Logo
8:40 am - 11:28 pmSJO-BOI
14h 48m1 stop
$408United Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 29

Delta flights from Boise to San José, San José Province

Our best Delta deals on Boise to San José, San José Province flight tickets
Delta
Jan 8
BOI3:00 pmBoise Air Term. Gowen Fld
20h 55m
2 stops
SJO12:55 pmSan José Juan Santamaria Intl
Jan 17
SJO8:25 amSan José Juan Santamaria Intl
16h 33m
2 stops
BOI11:58 pmBoise Air Term. Gowen Fld
$320
Find similar
Delta
Sep 12
BOI11:35 pmBoise Air Term. Gowen Fld
12h 33m
1 stop
SJO12:08 pmSan José Juan Santamaria Intl
Sep 19
SJO1:35 pmSan José Juan Santamaria Intl
25h 29m
2 stops
BOI3:04 pmBoise Air Term. Gowen Fld
$363
Find similar
Delta
Jan 11
BOI3:00 pmBoise Air Term. Gowen Fld
20h 55m
2 stops
SJO12:55 pmSan José Juan Santamaria Intl
Jan 18
SJO7:00 amSan José Juan Santamaria Intl
28h 24m
2 stops
BOI10:24 amBoise Air Term. Gowen Fld
$381
Find similar

American Airlines flights from Boise to San José, San José Province

Our best American Airlines deals on Boise to San José, San José Province flight tickets
American Airlines
Sep 5
BOI1:57 pmBoise Air Term. Gowen Fld
21h 15m
2 stops
SJO11:12 amSan José Juan Santamaria Intl
Sep 9
SJO6:00 amSan José Juan Santamaria Intl
15h 48m
2 stops
BOI9:48 pmBoise Air Term. Gowen Fld
$302
Find similar
American Airlines
Jan 14
BOI7:32 amBoise Air Term. Gowen Fld
29h 38m
2 stops
SJO2:10 pmSan José Juan Santamaria Intl
Jan 22
SJO3:50 pmSan José Juan Santamaria Intl
21h 44m
2 stops
BOI12:34 pmBoise Air Term. Gowen Fld
$362
Find similar
American Airlines
Jan 10
BOI7:32 amBoise Air Term. Gowen Fld
27h 33m
2 stops
SJO12:05 pmSan José Juan Santamaria Intl
Jan 18
SJO8:05 amSan José Juan Santamaria Intl
29h 35m
2 stops
BOI12:40 pmBoise Air Term. Gowen Fld
$367
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to San José, San José Province 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 July 31, 2025.
Use the filters below to find and compare flights from Boise to San José, San José Province that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 9/5

1:57 pm-11:12 am

2 stops21h 15m

San José Juan Santamaria Intl

Tue 9/9

6:00 am-9:48 pm

2 stops15h 48m

$302

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 1/21

7:30 am-11:00 pm

1 stop14h 30m

San José Juan Santamaria Intl

Tue 1/27

2:26 am-12:04 pm

1 stop10h 38m

$307

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 1/20

7:00 pm-11:00 pm

1 stop27h 00m

San José Juan Santamaria Intl

Wed 1/28

2:26 am-12:04 pm

1 stop10h 38m

$313

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 1/8

3:00 pm-12:55 pm

2 stops20h 55m

San José Juan Santamaria Intl

Sat 1/17

8:25 am-11:58 pm

2 stops16h 33m

$320

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 10/8

10:15 am-7:04 pm

2 stops56h 49m

San José Juan Santamaria Intl

Tue 10/28

1:11 am-10:20 pm

2 stops21h 09m

$323

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 10/8

10:15 am-7:04 pm

2 stops56h 49m

San José Juan Santamaria Intl

Tue 10/28

1:11 am-1:40 pm

1 stop12h 29m

$332

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 1/14

7:32 am-2:10 pm

2 stops29h 38m

San José Juan Santamaria Intl

Thu 1/22

3:50 pm-12:34 pm

2 stops21h 44m

$362

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 9/12

11:35 pm-12:08 pm

1 stop12h 33m

San José Juan Santamaria Intl

Fri 9/19

1:35 pm-3:04 pm

2 stops25h 29m

$363

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 8/28

2:45 pm-7:15 am

1 stop16h 30m

San José Juan Santamaria Intl

Thu 9/4

8:37 am-7:09 pm

1 stop10h 32m

$400

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 10/8

2:44 pm-7:15 am

1 stop16h 31m

San José Juan Santamaria Intl

Wed 10/29

8:40 am-11:28 pm

1 stop14h 48m

$408

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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, San José Province

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 cheapest month to fly to San José, San José Province?

The month of August is, on average, the cheapest month to fly to San José, San José Province from Boise, with most prices found around $436. If you’re not able to fly to San José, San José Province in August, then September is your next best option. Flight prices from Boise to San José, San José Province during September average around $502.

What is the cheapest day to depart on your flight to San José, San José Province?

The cheapest day to depart from Boise to San José, San José Province is on a Sunday when prices can be found for as low as $605. The most expensive day to fly to San José, San José Province is Friday, with ticket prices averaging around $765.

What is the cheapest time of day to depart on your flight to San José, San José Province?

In the evening is the cheapest time of day to fly from Boise to San José, San José Province when you can find flight prices for as low as $581. Flying to San José, San José Province in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to San José, San José Province, so prices are often more expensive at around $723 per ticket.

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

You are more likely to see cheaper flights to San José, San José Province from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to San José, San José Province for around $628 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José, San José Province from Boise for as low as $525 on momondo.

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

You could potentially save up to 27% on your flight if you consider stops on a Boise to San José, San José Province flight.

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

As of July 2025, prices for Boise to San José, San José Province flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Boise to San José, San José Province

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

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

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

Best Price Found

$362

Fastest flight time

11h 15m

Direct flights

None

Airports in San José, San José Province

1 airport
The best one-way flight to San José, San José Province from Boise in the past 72 hours is $362. The best round-trip flight deal from Boise to San José, San José Province found on momondo in the last 72 hours is $302.
The fastest flight from Boise to San José, San José Province takes 11h 15m
There are no direct flights from Boise to San José, San José Province. Popular non-direct route for this connection is Boise Air Term. Gowen Fld Airport - San José Juan Santamaria Intl Airport.
There is 1 airport near San José, San José Province: San José Juan Santamaria Intl (SJO)
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  • 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 11h 15m.

  • 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, San José Province?

Best airlines flying from Boise to San José, San José Province

Compare and see reviews for airlines that fly from Boise to San José, San José Province with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $436Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $439Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $471Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $557Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Copa AirlinesPriceFrom $591Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines 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
Alajuela
Monteverde
Heredia
Dominical
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, San José Province trip

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