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Idaho

$267+ Cheap flights from San José (SJO) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — BOI
aug. 1 — aug. 81
lør. 8/1
lør. 8/8
1 adult, Economy
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Cheap flight deals from San José to Idaho

Cheapest flights from San José to Idaho
Explore the most affordable flight options available from San José to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juli 2, 2026.

This United Airlines deal was found by Cheapflights users on 6/28. 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.
man. 7/2712:30 am
SJO
-
GEG
2 stops19h 19m
United Airlines
tir. 8/44:13 pm
GEG
-
SJO
2 stops29h 26m
United Airlines
Deal found 6/28$474
This United Airlines deal was found by Cheapflights users on 7/1. 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.
fre. 9/117:55 am
SJO
-
IDA
2 stops25h 58m
United Airlines
ons. 9/164:04 pm
IDA
-
SJO
2 stops44h 17m
United Airlines
Deal found 7/1$474
This United Airlines deal was found by Cheapflights users on 7/1. 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.
tor. 10/18:45 am
SJO
-
GEG
1 stop14h 31m
United Airlines
man. 10/56:00 am
GEG
-
SJO
2 stops29h 21m
United Airlines
Deal found 7/1$487
This United Airlines deal was found by Cheapflights users on 7/1. 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.
tor. 10/151:25 pm
SJO
-
IDA
2 stops20h 28m
United Airlines
man. 10/194:05 pm
IDA
-
SJO
2 stops20h 16m
United Airlines
Deal found 7/1$487
This eDestinos deal was found by Cheapflights users on 6/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tir. 7/285:45 am
SJO
-
GEG
1 stop17h 30m
Multiple Airlines
tir. 8/46:20 am
GEG
-
SJO
1 stop15h 55m
Multiple Airlines
Deal found 6/28$492
This American Airlines deal was found by Cheapflights users on 7/1. 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.
fre. 9/111:00 pm
SJO
-
IDA
1 stop22h 45m
American Airlines
ons. 9/1612:15 pm
IDA
-
SJO
1 stop25h 42m
American Airlines
Deal found 7/1$654
This American Airlines deal was found by Cheapflights users on 6/27. 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.
tor. 8/132:56 pm
SJO
-
IDA
2 stops20h 34m
American Airlines
tor. 8/201:43 pm
IDA
-
SJO
2 stops22h 43m
American Airlines
Deal found 6/27$655
This United Airlines deal was found by Cheapflights users on 6/27. 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.
tir. 8/181:25 pm
SJO
-
IDA
2 stops27h 51m
United Airlines
ons. 8/264:04 pm
IDA
-
SJO
2 stops20h 17m
United Airlines
Deal found 6/27$769
This United Airlines deal was found by Cheapflights users on 6/30. 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.
søn. 7/196:40 am
SJO
-
IDA
1 stop27h 10m
United Airlines
man. 7/272:30 pm
IDA
-
SJO
2 stops19h 41m
United Airlines
Deal found 6/30$815

Find flight deals from San José to Idaho

Keep the following information in mind while searching for San José to Idaho flight deals. Data was last updated juli 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$474
(United Airlines)

One-way from

$267
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$484
Provider with most accurate pricing for San José Juan Santamaria Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From San José Juan Santamaria Intl to Idaho
Search Deals
One-way flight from San José Juan Santamaria Intl to Idaho
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San José to Idaho 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 juli 2, 2026.
Use the filters below to find and compare flights from San José to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

man. 7/27

12:30 am-6:49 pm

2 stops19h 19m

Spokane

tir. 8/4

4:13 pm-10:39 pm

2 stops29h 26m

$474

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

fre. 9/11

7:55 am-9:53 am

2 stops25h 58m

Idaho Falls Fanning Field

ons. 9/16

4:04 pm-12:21 pm

2 stops44h 17m

$474

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

tor. 10/1

8:45 am-10:16 pm

1 stop14h 31m

Spokane

man. 10/5

6:00 am-12:21 pm

2 stops29h 21m

$487

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

tor. 10/15

1:25 pm-9:53 am

2 stops20h 28m

Idaho Falls Fanning Field

man. 10/19

4:05 pm-12:21 pm

2 stops20h 16m

$487
Quickest round-trip

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

tir. 7/28

5:45 am-10:15 pm

1 stop17h 30m

Spokane

tir. 8/4

6:20 am-11:15 pm

1 stop15h 55m

$492

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

tor. 8/13

6:00 am-11:30 am

2 stops29h 30m

Idaho Falls Fanning Field

tor. 8/20

12:06 pm-1:52 pm

1 stop25h 46m

$655

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

søn. 7/19

6:40 am-9:50 am

1 stop27h 10m

Idaho Falls Fanning Field

man. 7/27

2:30 pm-10:11 am

2 stops19h 41m

$815
Cheapest one-way

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

søn. 9/20

8:45 am-10:41 pm

1 stop14h 56m

$271

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

tir. 9/22

1:25 pm-9:14 pm

2 stops32h 49m

$272

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

fre. 7/24

7:55 am-3:12 pm

2 stops32h 17m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from San José to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from San José 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 San José to Idaho

What is the cheapest month to book a flight from San José to Idaho?

Currently, August is the cheapest month in which you can book a flight from San José to Idaho (average of $274). Flying from San José to Idaho in January is currently the most expensive (average of $706). 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.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated juli 2, 2026.
Read reviews from past customers who have flown United Airlines from San José to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,926 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,926 reviews
United Airlines
7.4
Good
9,926 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

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

  • What airport do you fly from for flights from San José to Idaho?

    Most people fly from San José Juan Santamaria Intl (SJO) if they book a flight from San José to Idaho. San José Juan Santamaria Intl is conveniently located just 8.8 mi from San José’s city center.

  • How long is the flight from San José to Idaho?

    Airlines like United Airlines and American Airlines fly from San José to Idaho in about 19h 19m. The time it takes to get you to your destination can typically vary by up to 1h 15m. Airlines will cover a distance of 3240 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San José to Idaho 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 San José to Idaho?

    Currently, August is the cheapest month in which you can book a flight from San José to Idaho (average of $274). Flying from San José to Idaho in January is currently the most expensive (average of $706). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from San José to Idaho

Discover the top airline that operate flights from San José to Idaho. 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 juli 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$301Average$485FlexibilityNo cancel feeOn-time69%

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