What airlines fly to San José?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to San José from Boise according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to San José. Keep in mind that there are 3 different airlines that fly to San José on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl?

Southwest, United Airlines, and Delta are the most popular carriers operating from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl

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?

As of September 2026, there are 3 operators available to choose from 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.

$250 Cheap Flights from Boise to San José in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boise to San José

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Enter your travel dates to find the best prices.

7:10 pm - 11:25 amBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

15h 15m2 stops San Francisco Houston George Bush Intcntl

9:40 am - 9:15 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

12h 35m1 stop San Francisco

$540United Airlines

Wed, Nov 4 - Wed, Nov 11

7:10 pm - 8:32 amBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

12h 22m1 stop San Francisco

9:40 am - 9:15 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

12h 35m1 stop San Francisco

$540United Airlines

Wed, Nov 4 - Wed, Nov 11

2:41 pm - 1:01 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

21h 20m2 stops Dallas/Fort Worth Miami

2:01 pm - 11:25 amSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

22h 24m2 stops Miami Dallas/Fort Worth

$545American Airlines

Wed, Nov 4 - Wed, Nov 11

2:41 pm - 1:01 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

21h 20m2 stops Dallas/Fort Worth Miami

3:54 pm - 1:51 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

22h 57m2 stops Miami Dallas/Fort Worth

$545American Airlines

Mon, Nov 9 - Mon, Nov 16

2:41 pm - 1:01 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

21h 20m2 stops Dallas/Fort Worth Miami

3:54 pm - 12:37 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

21h 43m2 stops Miami Chicago O'Hare Intl

$545American Airlines

Tue, Nov 3 - Tue, Nov 10

8:18 am - 11:15 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

13h 57m2 stops Los Angeles Guatemala City La Aurora

5:35 am - 10:55 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

18h 20m2 stops Guatemala City La Aurora Los Angeles

$548Multiple Airlines

Sat, Feb 13 - Sun, Feb 21

8:18 am - 11:15 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

13h 57m2 stops Los Angeles Guatemala City La Aurora

5:35 am - 10:55 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

17h 20m2 stops Guatemala City La Aurora Los Angeles

$548Multiple Airlines

Sat, Mar 6 - Sun, Mar 14

7:10 pm - 8:32 amBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

12h 22m1 stop San Francisco

9:40 am - 11:33 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

14h 53m1 stop San Francisco

$592United Airlines

Tue, Nov 3 - Tue, Nov 10

8:30 pm - 2:25 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

16h 55m2 stops Las Vegas Harry Reid Intl Houston Hobby

3:25 pm - 10:35 amSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

20h 10m2 stops Orlando Denver Intl

$1,087Southwest

Thu, Dec 17 - Tue, Dec 22

8:30 pm - 2:50 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

17h 20m2 stops Las Vegas Harry Reid Intl Denver Intl

2:45 pm - 11:00 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

9h 15m1 stop Denver Intl

$1,584Southwest

Fri, Nov 20 - Sat, Nov 28

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United Airlines flights from Boise to San José

Our best United Airlines deals on Boise to San José flight tickets

United Airlines

Nov 4

BOI7:10 pmBoise Air Term. Gowen Fld

12h 22m

1 stop

SJO8:32 amSan José Juan Santamaria Intl

Nov 11

SJO9:40 amSan José Juan Santamaria Intl

12h 35m

1 stop

BOI9:15 pmBoise Air Term. Gowen Fld

$540

United Airlines

Nov 3

BOI7:10 pmBoise Air Term. Gowen Fld

12h 22m

1 stop

SJO8:32 amSan José Juan Santamaria Intl

Nov 10

SJO9:40 amSan José Juan Santamaria Intl

14h 53m

1 stop

BOI11:33 pmBoise Air Term. Gowen Fld

$592

United Airlines

Oct 29

BOI7:10 pmBoise Air Term. Gowen Fld

12h 22m

1 stop

SJO7:32 amSan José Juan Santamaria Intl

Nov 10

SJO9:40 amSan José Juan Santamaria Intl

12h 35m

1 stop

BOI9:15 pmBoise Air Term. Gowen Fld

$670

American Airlines flights from Boise to San José

Our best American Airlines deals on Boise to San José flight tickets

American Airlines

Nov 3

BOI2:41 pmBoise Air Term. Gowen Fld

21h 20m

2 stops

SJO1:01 pmSan José Juan Santamaria Intl

Nov 10

SJO3:54 pmSan José Juan Santamaria Intl

21h 43m

2 stops

BOI12:37 pmBoise Air Term. Gowen Fld

$545

American Airlines

Nov 3

BOI2:41 pmBoise Air Term. Gowen Fld

21h 20m

2 stops

SJO1:01 pmSan José Juan Santamaria Intl

Nov 10

SJO2:46 pmSan José Juan Santamaria Intl

24h 05m

1 stop

BOI1:51 pmBoise Air Term. Gowen Fld

$556

American Airlines

Jan 24

BOI7:00 amBoise Air Term. Gowen Fld

11h 54m

1 stop

SJO7:54 pmSan José Juan Santamaria Intl

Feb 2

SJO3:56 pmSan José Juan Santamaria Intl

21h 48m

2 stops

BOI12:44 pmBoise Air Term. Gowen Fld

$590

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Wed 11/4

7:10 pm-11:25 am

2 stops15h 15m

San José Juan Santamaria Intl

Wed 11/11

9:40 am-9:15 pm

1 stop12h 35m

$540

Quickest round-trip

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Wed 11/4

7:10 pm-8:32 am

1 stop12h 22m

San José Juan Santamaria Intl

Wed 11/11

9:40 am-9:15 pm

1 stop12h 35m

$540

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Wed 11/4

2:41 pm-1:01 pm

2 stops21h 20m

San José Juan Santamaria Intl

Wed 11/11

2:01 pm-11:25 am

2 stops22h 24m

$545

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Mon 11/9

2:41 pm-1:01 pm

2 stops21h 20m

San José Juan Santamaria Intl

Mon 11/16

3:54 pm-1:51 pm

2 stops22h 57m

$545

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Tue 11/3

2:41 pm-1:01 pm

2 stops21h 20m

San José Juan Santamaria Intl

Tue 11/10

3:54 pm-12:37 pm

2 stops21h 43m

$545

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Sat 2/13

8:18 am-11:15 pm

2 stops13h 57m

San José Juan Santamaria Intl

Sun 2/21

5:35 am-10:55 pm

2 stops18h 20m

$548

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Sat 3/6

8:18 am-11:15 pm

2 stops13h 57m

San José Juan Santamaria Intl

Sun 3/14

5:35 am-10:55 pm

2 stops17h 20m

$548

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Tue 11/3

7:10 pm-8:32 am

1 stop12h 22m

San José Juan Santamaria Intl

Tue 11/10

9:40 am-11:33 pm

1 stop14h 53m

$592

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Thu 12/17

8:30 pm-2:25 pm

2 stops16h 55m

San José Juan Santamaria Intl

Tue 12/22

3:25 pm-10:35 am

2 stops20h 10m

$1,087

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Fri 11/20

8:30 pm-2:50 pm

2 stops17h 20m

San José Juan Santamaria Intl

Sat 11/28

2:45 pm-11:00 pm

1 stop9h 15m

$1,584

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

Prices are currently typical for flights on this route.

Typical prices usually range from $436 to $581.
The lowest price recently found on this route was $540.

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 November to fly from Boise, when ticket prices are also cheap, with an average price of $390.

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 $616 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 $389 on momondo.

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

You could potentially save up to 40% 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

Best Price Found	$250
Fastest flight time	12h 49m
Direct flights	None

The best one-way flight to San José from Boise in the past 72 hours is $250. The best round-trip flight deal from Boise to San José found on momondo in the last 72 hours is $540.

The fastest flight from Boise to San José takes 12h 49m

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 49m.
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?
As of September 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Boise to San José is United Airlines (51% of total bookings). The next most popular airlines are American Airlines (36%) and Southwest (13%).

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
American Airlines	PriceFrom $279	Free Cancellation	Rating 7.0 12,076 reviews	Search American Airlines flights
United Airlines	PriceFrom $345	Free Cancellation	Rating 7.4 10,222 reviews	Search United Airlines flights
Southwest	PriceFrom $454	Free Cancellation	Rating 8.0 4,194 reviews	Search Southwest flights

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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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Cheap flights from Boise to San José from $250

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 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Boise to San José

Our best United Airlines deals on Boise to San José flight tickets

American Airlines flights from Boise to San José

Our best American Airlines deals on Boise to San José flight tickets

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

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?

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

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

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

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl?

What airlines fly to San José?

When to book flights from Boise to San José

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near San José?

Why use momondo?

An easier way to manage your San José trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in San José. Availability may vary depending on flight origin and airline.

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