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Idaho Falls

$130+ Cheap flights from San Jose to Idaho Falls (SJC - IDA)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IDA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from San Jose to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Idaho Falls (IDA). 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 September 15, 2025.

Round-trip from

$301
(Alaska Airlines)

One-way from

$130
(Alaska Airlines)

Popular in

August

Cheapest in

February
From San Jose to Idaho Falls Fanning Field
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One-way flight from San Jose to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 28% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
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Find flight deals from San Jose to Idaho Falls

Cheapest flights from San Jose to Idaho Falls
Explore the most affordable flight options available from San Jose to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 12/113:49 pmSJC - IDA
1 stop7h 13mAlaska Airlines
Sun 12/145:04 pmIDA - SJC
1 stop6h 55mAlaska Airlines
Deal found 9/14$334
This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:15 pmSJC - IDA
1 stop6h 24mAlaska Airlines
Wed 10/16:13 amIDA - SJC
1 stop6h 45mAlaska Airlines
Deal found 9/14$354
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 9/305:00 pmSJC - IDA
1 stop4h 25mDelta
Sat 10/46:00 amIDA - SJC
1 stop4h 02mDelta
Deal found 9/15$410
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/2712:30 pmSJC - IDA
1 stop7h 22mUnited Airlines
Tue 9/305:00 amIDA - SJC
1 stop5h 52mUnited Airlines
Deal found 9/14$421
This KAYAK deal was found by Cheapflights users on 9/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:15 pmSJC - IDA
1 stop6h 24mAlaska Airlines
Wed 10/16:13 amIDA - SJC
1 stop6h 45mAlaska Airlines
Deal found 9/13$435
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 10/45:00 pmSJC - IDA
1 stop4h 25mDelta
Sat 10/116:53 pmIDA - SJC
1 stop3h 38mDelta
Deal found 9/15$511
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/308:45 amSJC - IDA
1 stop7h 33mUnited Airlines
Sat 10/49:41 amIDA - SJC
1 stop25h 11mUnited Airlines
Deal found 9/15$546
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/273:15 pmSJC - IDA
1 stop6h 24mAlaska Airlines
Tue 9/303:57 pmIDA - SJC
2 stops7h 46mAlaska Airlines
Deal found 9/14$549
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/168:45 amSJC - IDA
1 stop5h 26mUnited Airlines
Thu 9/1810:56 amIDA - SJC
1 stop7h 21mUnited Airlines
Deal found 9/14$571
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/309:00 amSJC - IDA
1 stop5h 20mAlaska Airlines
Sat 10/44:15 pmIDA - SJC
2 stops7h 31mAlaska Airlines
Deal found 9/15$574

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to Idaho Falls 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 September 15, 2025.
Use the filters below to find and compare flights from San Jose to Idaho Falls that are best for you.

Fly from

San Jose

Fly to

Idaho Falls

Route

Depart

Return

Price

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 3/2

5:00 pm-10:38 pm

1 stop4h 38m

Idaho Falls Fanning Field

Fri 3/6

8:00 am-12:08 pm

1 stop5h 08m

$301

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 3/2

3:05 pm-10:38 pm

1 stop6h 33m

Idaho Falls Fanning Field

Fri 3/6

8:00 am-12:08 pm

1 stop5h 08m

$301

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 3/2

8:05 pm-12:31 pm

2 stops15h 26m

Idaho Falls Fanning Field

Fri 3/6

6:45 pm-11:59 pm

1 stop6h 14m

$309

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Thu 12/11

7:00 am-12:02 am

2 stops16h 02m

Idaho Falls Fanning Field

Sun 12/14

5:04 pm-10:59 pm

1 stop6h 55m

$338

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 9/30

5:00 pm-10:25 pm

1 stop4h 25m

Idaho Falls Fanning Field

Sat 10/4

6:00 am-9:02 am

1 stop4h 02m

$410

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Sat 9/27

12:30 pm-8:52 pm

1 stop7h 22m

Idaho Falls Fanning Field

Tue 9/30

5:00 am-9:52 am

1 stop5h 52m

$421

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 9/30

3:15 pm-10:39 pm

1 stop6h 24m

Idaho Falls Fanning Field

Wed 10/1

6:13 am-11:58 am

1 stop6h 45m

$435

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Sat 10/4

5:00 pm-10:25 pm

1 stop4h 25m

Idaho Falls Fanning Field

Sat 10/11

6:53 pm-9:31 pm

1 stop3h 38m

$511

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 9/30

8:45 am-5:18 pm

1 stop7h 33m

Idaho Falls Fanning Field

Sat 10/4

9:41 am-9:52 am

1 stop25h 11m

$546

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 10/14

3:44 pm-10:38 pm

1 stop5h 54m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 15 results
1
2

Best time to book a flight from San Jose to Idaho Falls

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

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

Currently, October is the cheapest month in which you can book a flight from San Jose to Idaho Falls (average of $380). Flying from San Jose to Idaho Falls in December is currently the most expensive (average of $578). 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 Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Delta from San Jose to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

  • How long is the flight from San Jose to Idaho Falls?

    A quick flight from San Jose to Idaho Falls can take about 4h 38m. Alaska Airlines provides one of the quickest options available for as low as $301. There are 669 mi between San Jose and Idaho Falls. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from San Jose to Idaho Falls round-trip?

    Cheapflights users have booked flights from San Jose to Idaho Falls round-trip from $240. You may be able to fly from San Jose to Idaho Falls for 47% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose to Idaho Falls 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 Jose to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from San Jose to Idaho Falls (average of $380). Flying from San Jose to Idaho Falls in December is currently the most expensive (average of $578). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top airline flying from San Jose to Idaho Falls

Discover the top airline that operate flights from San Jose to Idaho Falls. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$240Average$344FlexibilityNo cancel feeOn-timeN/A

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