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Idaho

$225+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — BOI
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
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 March 13, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/237:55 am
SJO
-
IDA
2 stops53h 29m
United Airlines
Wed 4/295:20 pm
IDA
-
SJO
2 stops26h 17m
United Airlines
Deal found 3/9$368
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/227:55 am
SJO
-
GEG
2 stops28h 48m
United Airlines
Sat 4/2512:35 pm
GEG
-
SJO
1 stop17h 40m
United Airlines
Deal found 3/8$382
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Tue 10/277:45 am
SJO
-
IDA
2 stops15h 08m
United Airlines
Sat 10/312:35 pm
IDA
-
SJO
2 stops20h 50m
United Airlines
Deal found 3/8$382
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/256:00 am
SJO
-
GEG
2 stops31h 40m
United Airlines
Sat 5/28:55 am
GEG
-
SJO
2 stops19h 35m
United Airlines
Deal found 3/11$390
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 6/212:30 am
SJO
-
GEG
2 stops21h 35m
United Airlines
Tue 7/2112:37 pm
GEG
-
SJO
2 stops20h 34m
United Airlines
Deal found 3/9$474
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:25 pm
SJO
-
IDA
2 stops44h 30m
United Airlines
Thu 5/142:31 pm
IDA
-
SJO
2 stops21h 50m
United Airlines
Deal found 3/10$474
This BusinessClass deal was found by Cheapflights users on 3/8. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:58 pm
SJO
-
GEG
2 stops24h 01m
GOL
Sat 7/1112:49 pm
GEG
-
SJO
2 stops23h 11m
GOL
Deal found 3/8$475
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:30 pm
SJO
-
GEG
1 stop11h 05m
American Airlines
Tue 9/812:42 pm
GEG
-
SJO
2 stops21h 23m
American Airlines
Deal found 3/10$477
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 6/311:59 pm
SJO
-
GEG
1 stop21h 47m
American Airlines
Tue 7/213:00 pm
GEG
-
SJO
2 stops22h 17m
American Airlines
Deal found 3/9$497
This Orbitz deal was found by Cheapflights users on 3/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:53 am
SJO
-
GEG
1 stop15h 36m
Alaska Airlines
Sun 5/244:09 pm
GEG
-
SJO
1 stop30h 24m
Alaska Airlines
Deal found 3/11$513
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 6/48:45 am
SJO
-
GEG
1 stop26h 42m
United Airlines
Tue 7/2112:37 pm
GEG
-
SJO
2 stops20h 34m
United Airlines
Deal found 3/9$516
This Southwest deal was found by Cheapflights users on 3/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/141:10 pm
SJO
-
GEG
2 stops12h 20m
Southwest
Sun 5/245:30 pm
GEG
-
SJO
2 stops17h 40m
Southwest
Deal found 3/11$517

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$368
(United Airlines)

One-way from

$225
(United Airlines)

Popular in

January

Cheapest in

July

Average price

$629
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 ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 13, 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 JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 4/23

1:25 pm-1:24 pm

2 stops47h 59m

Idaho Falls Fanning Field

Wed 4/29

5:20 pm-12:21 pm

2 stops19h 01m

$368

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Wed 4/22

7:55 am-11:43 am

2 stops28h 48m

Spokane

Sat 4/25

12:35 pm-7:15 am

1 stop17h 40m

$382

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 5/7

1:25 pm-9:55 am

2 stops44h 30m

Idaho Falls Fanning Field

Thu 5/14

2:31 pm-12:21 pm

2 stops21h 50m

$474
Quickest round-trip

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 5/7

11:35 pm-1:13 pm

1 stop13h 38m

Idaho Falls Fanning Field

Thu 5/14

1:43 pm-9:36 pm

1 stop7h 53m

$565

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Fri 4/10

7:55 am-9:53 am

2 stops25h 58m

Idaho Falls Fanning Field

Fri 4/17

5:20 pm-12:21 pm

2 stops19h 01m

$596

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Thu 5/7

4:18 pm-10:40 pm

3 stops54h 22m

Idaho Falls Fanning Field

Thu 5/14

4:03 pm-11:33 pm

2 stops31h 30m

$672

San JoséIdaho Falls

SJO - IDA

SJOIDA

San José Juan Santamaria Intl

Sun 7/12

6:00 am-1:25 pm

2 stops31h 25m

Idaho Falls Fanning Field

Sun 7/19

7:00 am-10:11 am

2 stops27h 11m

$740
Cheapest one-way

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Sun 5/24

12:53 am-10:52 pm

1 stop22h 59m

$226

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Tue 4/21

7:55 am-11:43 am

2 stops52h 48m

$230

San JoséSpokane

SJO - GEG

SJOGEG

San José Juan Santamaria Intl

Wed 4/8

12:19 pm-10:21 am

3 stops23h 02m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 14 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 $279). 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 March 13, 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
9,418 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 fly from San José to Idaho in about 47h 59m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 2854 mi.

  • 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 $279). 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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$396FlexibilityNo cancel feeOn-time69%

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