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Idaho Falls

$128+ Cheap flights from San Jose, CA 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IDA
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 3/102:36 pm
SJC
-
IDA
1 stop8h 00m
Alaska Airlines
Sat 3/145:20 pm
IDA
-
SJC
1 stop6h 39m
Alaska Airlines
Deal found 1/21$255
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 3/94:59 pm
SJC
-
IDA
1 stop5h 37m
Alaska Airlines
Sat 3/145:20 pm
IDA
-
SJC
1 stop6h 39m
Alaska Airlines
Deal found 1/21$258
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 2/282:58 pm
SJC
-
IDA
2 stops31h 38m
Alaska Airlines
Tue 3/38:00 am
IDA
-
SJC
1 stop6h 42m
Alaska Airlines
Deal found 1/21$279
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 3/102:36 pm
SJC
-
IDA
1 stop8h 00m
Alaska Airlines
Fri 3/135:20 pm
IDA
-
SJC
1 stop6h 39m
Alaska Airlines
Deal found 1/21$297
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 3/94:59 pm
SJC
-
IDA
1 stop5h 37m
Alaska Airlines
Fri 3/135:20 pm
IDA
-
SJC
1 stop6h 39m
Alaska Airlines
Deal found 1/21$300
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:42 pm
SJC
-
IDA
1 stop16h 49m
Alaska Airlines
Tue 5/56:00 am
IDA
-
SJC
2 stops13h 51m
Alaska Airlines
Deal found 1/20$309
This Delta deal was found by Cheapflights users on 1/20. 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 2/34:54 pm
SJC
-
IDA
1 stop5h 03m
Delta
Wed 2/46:35 pm
IDA
-
SJC
1 stop6h 23m
Delta
Deal found 1/20$321
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 3/1010:16 am
SJC
-
IDA
1 stop5h 27m
Alaska Airlines
Thu 3/125:20 pm
IDA
-
SJC
1 stop6h 39m
Alaska Airlines
Deal found 1/21$339

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$255
(Delta)

One-way from

$128
(Alaska Airlines)

Popular in

August

Cheapest in

October

Average price

$318
Provider with most accurate pricing for San Jose-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Jose-Idaho Falls Fanning Field flights.
Search Deals
From San Jose to Idaho Falls Fanning Field
Search Deals
One-way flight from San Jose to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 42% potential increase in price ($275 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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

Wed 3/11

4:59 pm-11:36 pm

1 stop5h 37m

Idaho Falls Fanning Field

Sat 3/14

5:20 pm-10:59 pm

1 stop6h 39m

$255

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 3/9

4:59 pm-11:36 pm

1 stop5h 37m

Idaho Falls Fanning Field

Sat 3/14

5:20 pm-10:59 pm

1 stop6h 39m

$258

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 3/10

4:59 pm-11:36 pm

1 stop5h 37m

Idaho Falls Fanning Field

Sat 3/14

8:00 am-2:21 pm

2 stops7h 21m

$279

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Sat 2/28

2:58 pm-11:36 pm

2 stops31h 38m

Idaho Falls Fanning Field

Tue 3/3

8:00 am-1:42 pm

1 stop6h 42m

$279

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Mon 3/9

4:59 pm-11:36 pm

1 stop5h 37m

Idaho Falls Fanning Field

Fri 3/13

5:20 pm-10:59 pm

1 stop6h 39m

$300

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 3/10

10:16 am-4:43 pm

1 stop5h 27m

Idaho Falls Fanning Field

Thu 3/12

5:20 pm-10:59 pm

1 stop6h 39m

$339

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Fri 4/10

7:22 pm-4:19 pm

2 stops19h 57m

Idaho Falls Fanning Field

Tue 4/14

6:00 am-10:02 am

2 stops29h 02m

$347

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Sat 2/7

5:54 am-12:34 pm

1 stop5h 40m

Idaho Falls Fanning Field

Mon 2/9

6:35 pm-11:58 pm

1 stop6h 23m

$356

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Tue 6/30

5:00 pm-10:14 pm

1 stop4h 14m

Idaho Falls Fanning Field

Sat 7/4

6:10 am-8:57 am

1 stop3h 47m

$364

San JoseIdaho Falls

SJC - IDA

SJCIDA

San Jose

Wed 2/25

4:59 pm-11:36 pm

1 stop5h 37m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 14 results
1
2

Compare providers for flights from San Jose to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Jose to Idaho Falls in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Jose, California-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Jose, California-Idaho Falls flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Jose, California-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, California to Idaho Falls?

Currently, August is the cheapest month in which you can book a flight from San Jose, California to Idaho Falls (average of $85). Flying from San Jose, California to Idaho Falls in December is currently the most expensive (average of $307). 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 January 21, 2026.
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
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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
7.9
Good
8,088 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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, California to Idaho Falls?

    A quick flight from San Jose, California to Idaho Falls can take about 5h 37m. Alaska Airlines provides one of the quickest options available for as low as $255. San Jose, California and Idaho Falls are separated by a distance of 669 mi.

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

    Currently priced at $126, Delta will fly you from San Jose, California to Idaho Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. This flight start at 65% lower than the current average price 3 months from now.

  • 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, California to Idaho Falls?

    Currently, August is the cheapest month in which you can book a flight from San Jose, California to Idaho Falls (average of $85). Flying from San Jose, California to Idaho Falls in December is currently the most expensive (average of $307). 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
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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$126Average$344FlexibilityNo cancel feeOn-timeN/A

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