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Cheap flights from Boise to San José from $307

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 6/29. 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.
Multiple Airlines Logo
7:05 am - 11:15 pm
BOI
-
SJO
16h 10m
2 stops
Multiple Airlines Logo
5:45 am - 11:00 pm
SJO
-
BOI
17h 15m
2 stops
$394Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
Multiple Airlines Logo
6:51 pm - 8:40 am
BOI
-
SJO
12h 49m
2 stops
Multiple Airlines Logo
5:45 am - 10:55 pm
SJO
-
BOI
18h 10m
1 stop
$396Multiple Airlines
Sun, Nov 22 - Mon, Nov 30
Multiple Airlines Logo
7:00 am - 11:15 pm
BOI
-
SJO
15h 15m
2 stops
Multiple Airlines Logo
5:45 am - 10:58 pm
SJO
-
BOI
18h 13m
2 stops
$426Multiple Airlines
Mon, Nov 2 - Tue, Nov 17
Multiple Airlines Logo
8:03 am - 11:40 pm
BOI
-
SJO
15h 37m
2 stops
Multiple Airlines Logo
5:45 am - 11:00 pm
SJO
-
BOI
17h 15m
2 stops
$433Multiple Airlines
Wed, Aug 12 - Thu, Aug 20
Multiple Airlines Logo
6:47 pm - 11:45 am
BOI
-
SJO
16h 58m
3 stops
Multiple Airlines Logo
5:45 am - 11:00 pm
SJO
-
BOI
17h 15m
2 stops
$435Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
Multiple Airlines Logo
8:03 am - 11:15 pm
BOI
-
SJO
15h 12m
2 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$443Multiple Airlines
Tue, Aug 4 - Sat, Aug 15
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
$450United Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
6:51 pm - 11:15 pm
BOI
-
SJO
28h 24m
2 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$451Multiple Airlines
Wed, Aug 5 - Sat, Aug 15
Multiple Airlines Logo
6:51 pm - 11:45 am
BOI
-
SJO
16h 54m
3 stops
Multiple Airlines Logo
5:45 am - 10:45 pm
SJO
-
BOI
17h 00m
2 stops
$452Multiple Airlines
Mon, Aug 3 - Sat, Aug 15
United Airlines Logo
7:05 pm - 7:15 am
BOI
-
SJO
12h 10m
1 stop
United Airlines Logo
6:40 am - 7:16 pm
SJO
-
BOI
13h 36m
2 stops
$455United Airlines
Thu, Aug 6 - Sat, Dec 5

United Airlines flights from Boise to San José

Our best United Airlines deals on Boise to San José flight tickets
United Airlines
Jun 9
BOI7:05 pmBoise Air Term. Gowen Fld
12h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Jun 16
SJO8:45 amSan José Juan Santamaria Intl
12h 55m
1 stop
BOI9:40 pmBoise Air Term. Gowen Fld
$450
United Airlines
Aug 6
BOI7:05 pmBoise Air Term. Gowen Fld
12h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Dec 5
SJO6:40 amSan José Juan Santamaria Intl
13h 36m
2 stops
BOI7:16 pmBoise Air Term. Gowen Fld
$455
United Airlines
Aug 6
BOI7:05 pmBoise Air Term. Gowen Fld
12h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Dec 5
SJO7:30 amSan José Juan Santamaria Intl
11h 25m
1 stop
BOI5:55 pmBoise Air Term. Gowen Fld
$460

Alaska Airlines flights from Boise to San José

Our best Alaska Airlines deals on Boise to San José flight tickets
Alaska Airlines
Nov 4
BOI7:00 amBoise Air Term. Gowen Fld
15h 08m
1 stop
SJO11:08 pmSan José Juan Santamaria Intl
Nov 15
SJO1:43 amSan José Juan Santamaria Intl
12h 57m
1 stop
BOI1:40 pmBoise Air Term. Gowen Fld
$505
Alaska Airlines
Nov 4
BOI7:00 amBoise Air Term. Gowen Fld
15h 08m
1 stop
SJO11:08 pmSan José Juan Santamaria Intl
Nov 15
SJO1:43 amSan José Juan Santamaria Intl
21h 37m
2 stops
BOI10:20 pmBoise Air Term. Gowen Fld
$510
Alaska Airlines
Nov 3
BOI5:57 pmBoise Air Term. Gowen Fld
28h 11m
1 stop
SJO11:08 pmSan José Juan Santamaria Intl
Nov 18
SJO1:43 amSan José Juan Santamaria Intl
23h 08m
2 stops
BOI11:51 pmBoise Air Term. Gowen Fld
$518

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 May 28, 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

Thu 8/20

7:05 am-11:15 pm

2 stops16h 10m

San José Juan Santamaria Intl

Thu 8/27

5:45 am-11:00 pm

2 stops17h 15m

$394

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 11/22

6:51 pm-8:40 am

2 stops12h 49m

San José Juan Santamaria Intl

Mon 11/30

5:45 am-10:55 pm

1 stop18h 10m

$396

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 11/2

7:00 am-11:15 pm

2 stops15h 15m

San José Juan Santamaria Intl

Tue 11/17

5:45 am-10:58 pm

2 stops18h 13m

$426

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 8/12

8:03 am-11:40 pm

2 stops15h 37m

San José Juan Santamaria Intl

Thu 8/20

5:45 am-11:00 pm

2 stops17h 15m

$433

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 8/20

6:47 pm-11:45 am

3 stops16h 58m

San José Juan Santamaria Intl

Thu 8/27

5:45 am-11:00 pm

2 stops17h 15m

$435

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 8/4

8:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Sat 8/15

5:45 am-10:45 pm

2 stops17h 00m

$443
Quickest round-trip

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 6/9

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Tue 6/16

8:45 am-9:40 pm

1 stop12h 55m

$450

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 8/5

6:51 pm-11:15 pm

2 stops28h 24m

San José Juan Santamaria Intl

Sat 8/15

5:45 am-10:45 pm

2 stops17h 00m

$451

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 8/3

6:51 pm-11:45 am

3 stops16h 54m

San José Juan Santamaria Intl

Sat 8/15

5:45 am-10:45 pm

2 stops17h 00m

$452

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 8/6

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Sat 12/5

6:40 am-7:16 pm

2 stops13h 36m

$455

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 $330. 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 from Boise 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 $558 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 $377 on momondo.

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

You could potentially save up to 35% 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
8,423 reviews
Search Delta flights
American AirlinesPriceFrom $279Free CancellationRating
7.1
11,639 reviews
Search American Airlines flights
United AirlinesPriceFrom $315Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $376Free CancellationRating
7.9
12,423 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $477Free CancellationRating
7.9
4,264 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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