BOI - SJO

$269 Find Cheap Flights from Boise to San José - Compare and Save

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Everything you should know

Cheapest round-trip
$568
Typical prices: $467-$688
Alaska Airlines
Wed 2/21Thu 3/1
BOI - SJO • 2 stops
Cheapest one-way
$269
Typical prices: $199-$348
American Airlines
Fri 1/26
BOI - SJO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Boise and San José. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
21 weeks
in advance
Our data shows that travelers who book at least 21 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
When to travel
August
Cheapest • 15% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg $523 (round-trip)
Denver Intl (DEN)
Shortest trip • 10h 13m (one-way)
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Insights
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We hope you love your trip to San José!
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Flight Deals

Cheap Flights from Boise to San José (BOI-SJO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to San José

Sun, Feb 21 - Mon, Mar 1
Alaska Airlines Logo
6:00 am - 11:57 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
16h 57m2 stops Portland Los Angeles
Alaska Airlines Logo
1:45 am - 6:19 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
17h 34m1 stop Los Angeles
$568Alaska Airlines
Wed, Apr 7 - Wed, Apr 21
Southwest Logo
8:25 am - 7:00 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
10h 35m2 stops Denver Intl Houston Hobby
Southwest Logo
9:00 am - 10:10 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
13h 10m2 stops Orlando Denver Intl
$571Southwest
Mon, Dec 7 - Thu, Dec 17
United Airlines Logo
4:24 pm - 8:32 amBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
15h 08m1 stop San Francisco
United Airlines Logo
9:40 am - 9:36 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
12h 56m1 stop San Francisco
$581United Airlines
Sun, Jan 17 - Thu, Jan 28
United Airlines Logo
4:10 pm - 8:32 amBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
15h 22m1 stop San Francisco
United Airlines Logo
9:40 am - 9:35 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
12h 55m1 stop San Francisco
$581United Airlines
Wed, Jan 20 - Sat, Jan 30
American Airlines Logo
7:00 am - 7:54 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
11h 54m1 stop Dallas/Fort Worth
American Airlines Logo
6:30 am - 8:06 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
14h 36m1 stop Dallas/Fort Worth
$581American Airlines
Wed, Feb 24 - Sun, Feb 28
American Airlines Logo
12:26 pm - 10:59 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
9h 33m1 stop Dallas/Fort Worth
American Airlines Logo
12:25 am - 11:36 amSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
12h 11m1 stop Dallas/Fort Worth
$581American Airlines
Sun, Feb 21 - Mon, Mar 1
Alaska Airlines Logo
8:47 am - 11:57 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
14h 10m2 stops Seattle/Tacoma Intl Los Angeles
Alaska Airlines Logo
1:45 am - 3:05 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
14h 20m2 stops Los Angeles Seattle/Tacoma Intl
$584Alaska Airlines
Wed, Apr 28 - Sat, May 8
Southwest Logo
4:00 pm - 12:10 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
20h 10m2 stops Phoenix Sky Harbor Intl Orlando
Southwest Logo
9:00 am - 9:35 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
12h 35m2 stops Denver Intl Sacramento Intl
$609Southwest
Sun, Feb 28 - Tue, Mar 16
Southwest Logo
4:15 pm - 12:05 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
18h 50m2 stops Denver Intl Baltimore/Washington
Southwest Logo
1:55 pm - 11:45 amSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
21h 50m2 stops Houston Hobby Los Angeles
$609Southwest
Wed, Feb 24 - Sun, Feb 28
Alaska Airlines Logo
6:00 am - 11:57 pmBOI  Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl
16h 57m2 stops Seattle/Tacoma Intl Los Angeles
Alaska Airlines Logo
1:45 am - 4:11 pmSJO  San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld
15h 26m2 stops Los Angeles Seattle/Tacoma Intl
$623Alaska Airlines
Booking Insights

Price, demand and travel trends for Boise to San José flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boise to San José?

Round-trip flights from Boise to San José typically range from $467 to $688. The lowest price found in the past 5 days was $568, on Alaska Airlines.

What's the cheapest day of the week to fly from Boise to San José?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Boise to San José. It’s 16% cheaper than the average day, while Friday is the most expensive, with prices 19% higher.

What’s the cheapest month to fly from Boise to San José?

•August is the cheapest month to fly from Boise to San José at $474 round-trip.
•December ($1,416) and March ($694) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 198% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boise to San José the cheapest?

Flights from Boise to San José are cheapest 21 weeks before departure. Booking in this window typically costs about 32% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boise to San José flights

Low season

September

Cheapest flight

$269
Beat the crowds with an average 32% drop in travelers.
The most popular month to fly with an average 71% increase in travelers.
One-way flight from Boise to San José

When to book flights from Boise to San José

Are your dates flexible? Find out the best times to travel from Boise to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boise to San José flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boise to San José?

    Three cabin classes are available on flights from Boise to San José:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Boise to San José?

    A nonstop flight from Boise to San José takes 00m, covering 3,008 miles.

  • Do I need a passport to fly from Boise to San José?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boise to San José flight?

    Round-trip flights from Boise to San José range from $467 to $688, with an average of $559 over the past 12 months. Anything below $467 counts as a good deal.

  • How expensive are last-minute Boise to San José flights?

    Last-minute fares on this route (booked within two weeks of departure) run 13% above the $559 route average. Book 21 weeks before departure for the lowest fares.

  • Have flight prices from Boise to San José changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $568 to $5,220. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Boise to San José looking right now?

    One-way fares from Boise to San José are currently higher than usual. Average one-way flight prices are about $296, which is 33% above the typical average for this route.

  • What car rental options are available at San José Juan Santamaria Intl Airport (SJO)?

    San José Juan Santamaria Intl Airport (SJO) hosts 5 major car rental companies, with daily rates averaging $30 for economy cars. Top options include:

    • Priceless
    • Avis
    • Budget
    • Alamo
    • Payless

  • Which airports can I use when flying from Boise to San José?

    Flights from Boise to San José usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at San José Juan Santamaria Intl (SJO).

  • Which airports do connecting flights from Boise to San José pass through?

    One-stop flights from Boise to San José most commonly connect through:

    • San Francisco (SFO) - 60% of one-stop connections
    • Dallas/Fort Worth (DFW) - 32% of one-stop connections
    • Denver Intl (DEN) - 4% of one-stop connections
    • Los Angeles (LAX) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Boise to San José?

    Yes. Flexible dates can save you up to 30% on flights from Boise to San José. Monday is the cheapest departure day at $470 round-trip on average, while Friday is the most expensive at $668, a difference of $198.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Boise to San José?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 10h 13m, compared with 11h 42m via Dallas/Fort Worth (DFW) and 12h 18m via San Francisco (SFO).

  • What is the time difference between Boise and San José?

    San José is 1 hour ahead of Boise (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San José?

    Some of the most popular sights in San José are Parque Metropolitano La Sabana, Estadio Nacional de Costa Rica and Museo de Oro. These are among the most viewed places in San José on KAYAK.

Your guide to booking Boise to San José flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $470, about $198 less than Friday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 32% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boise to San José trip for August. Fares historically average $474 round-trip in that month - typically $942 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Boise to San José

Complete your trip to San José with a hotel stay or car rental

Car rentals in San José
Hotels in San José
Vacations in San José