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San José

$380+ Cheap flights from Boise (BOI) to San José (SJO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SJO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San José Juan Santamaria Intl are usually found in August or September, booked 55 days in advance, depart on a Sunday or Wednesday and return on a Tuesday

Cheap flight deals from Boise to San José

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$380
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$503
From Boise Air Term. Gowen Fld to San José Juan Santamaria Intl
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Highest demand for flights based on searches. 12% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Boise to San José

Cheapest flights from Boise to San José
Explore the most affordable flight options available from Boise to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:15 pmBOI - SJO
2 stops18h 40mAmerican Airlines
Mon 9/226:00 amSJO - BOI
2 stops15h 48mAmerican Airlines
Deal found 6/11$380
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/82:44 pmBOI - SJO
1 stop16h 31mUnited Airlines
Wed 10/298:40 amSJO - BOI
1 stop14h 48mUnited Airlines
Deal found 6/11$416
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/108:18 amBOI - SJO
1 stop15h 12mAlaska Airlines
Fri 8/1512:50 amSJO - BOI
2 stops23h 08mAlaska Airlines
Deal found 6/10$482
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1311:40 pmBOI - SJO
1 stop13h 25mDelta
Sat 6/217:25 amSJO - BOI
2 stops16h 34mDelta
Deal found 6/10$496
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/117:48 pmBOI - SJO
2 stops15h 23mMultiple Airlines
Sun 7/208:14 amSJO - BOI
2 stops34h 38mMultiple Airlines
Deal found 6/10$545
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/57:10 amBOI - SJO
2 stops12h 30mSouthwest
Thu 7/108:45 amSJO - BOI
2 stops15h 45mSouthwest
Deal found 6/10$569
This Copa Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:31 pmBOI - SJO
2 stops16h 30mCopa Airlines
Tue 11/114:13 amSJO - BOI
2 stops19h 32mCopa Airlines
Deal found 6/12$736

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Boise to San José that are best for you.

Fly from

Boise

Fly to

San José

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 9/1

5:15 pm-11:55 am

2 stops18h 40m

San José Juan Santamaria Intl

Mon 9/22

6:00 am-9:48 pm

2 stops15h 48m

$380

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

$416

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sun 8/10

8:18 am-11:30 pm

1 stop15h 12m

San José Juan Santamaria Intl

Fri 8/15

12:50 am-11:58 pm

2 stops23h 08m

$482

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 7/11

7:48 pm-11:11 am

2 stops15h 23m

San José Juan Santamaria Intl

Sun 7/20

8:14 am-6:52 pm

2 stops34h 38m

$545

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 7/5

7:10 am-7:40 pm

2 stops12h 30m

San José Juan Santamaria Intl

Thu 7/10

8:45 am-12:30 am

2 stops15h 45m

$569

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 7/3

11:40 pm-12:00 pm

1 stop12h 20m

San José Juan Santamaria Intl

Sat 7/12

7:25 am-12:03 am

2 stops16h 38m

$575

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 11/5

2:31 pm-8:01 am

2 stops16h 30m

San José Juan Santamaria Intl

Tue 11/11

4:13 am-10:45 pm

2 stops19h 32m

$736

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Boise to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to San José

How far ahead should I book a flight from Boise to San José, San José Province?

Use this chart to determine the optimal time to book a round-trip flight from Boise to San José. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Boise to San José, San José Province, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boise to San José, San José Province?

Currently, September is the cheapest month in which you can book a flight from Boise to San José, San José Province (average of $398). Flying from Boise to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOI to SJO?

Find hourly flight availability from Boise to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Boise to San José, San José Province in the evening. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Boise to San José, San José Province?

Use this chart to determine the cheapest time to fly round-trip from Boise to San José. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to San José, San José Province flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San José by month

Plan your trip to San José by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San José, San José Province ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit San José, San José Province when rainfall is around 0.0 in.

Temperature in San José by month

Plan your trip to San José by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San José, San José Province, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San José. Reviews last updated June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Copa Airlines
7.5
Good
1,451 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Related info for your journey

Find useful and relevant information for your journey from Boise to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boise to San José, San José Province round-trip?

    Flying on American Airlines is currently your cheapest option to San José, San José Province, with prices starting at $380. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $416 and $482, respectively. American Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Boise to San José that include hotel bookings?

    Yes. In addition to deals on Boise to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to San José.

  • Can I find deals for business class flights from Boise to San José?

    Yes. Cheapflights offers flight deals from Boise to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boise to San José, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Boise to San José, San José Province (average of $398). Flying from Boise to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boise?

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Top 6 airlines flying from Boise to San José

Discover the top 6 airlines that operate flights from Boise to San José. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$141Average$625FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$418Average$647FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$439Average$630FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$493Average$686FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$559Average$691FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$591Average$1,197FlexibilityNo cancel feeOn-time70%

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