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Idaho Falls

$238+ Cheap flights from San Diego to Idaho Falls (SAN - IDA)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from San Diego to Idaho Falls

Cheapest flights from San Diego to Idaho Falls
Explore the most affordable flight options available from San Diego to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:45 pm
SAN
-
IDA
1 stop5h 51m
Alaska Airlines
Sat 3/75:20 pm
IDA
-
SAN
1 stop7h 24m
Alaska Airlines
Deal found 1/27$238
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/122:38 pm
SAN
-
IDA
1 stop23h 53m
Multiple Airlines
Mon 2/1610:31 pm
IDA
-
SAN
2 stops22h 53m
Multiple Airlines
Deal found 1/28$263
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:15 am
SAN
-
IDA
1 stop5h 12m
Delta
Thu 3/266:55 pm
IDA
-
SAN
1 stop5h 53m
Delta
Deal found 1/28$290
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:15 am
SAN
-
IDA
1 stop5h 12m
Delta
Sun 3/156:55 pm
IDA
-
SAN
1 stop5h 53m
Delta
Deal found 1/28$293
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 2/278:04 am
SAN
-
IDA
2 stops14h 32m
Alaska Airlines
Mon 3/25:20 pm
IDA
-
SAN
1 stop6h 43m
Alaska Airlines
Deal found 1/26$331
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:18 pm
SAN
-
IDA
2 stops19h 01m
Alaska Airlines
Mon 4/134:59 pm
IDA
-
SAN
1 stop7h 59m
Alaska Airlines
Deal found 1/28$334
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:15 am
SAN
-
IDA
1 stop9h 28m
Alaska Airlines
Thu 3/55:20 pm
IDA
-
SAN
1 stop6h 43m
Alaska Airlines
Deal found 1/28$365

Find flight deals from San Diego to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(Kiwi.com)

Popular in

January

Cheapest in

May

Average price

$1,044
Provider with most accurate pricing for San Diego-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Idaho Falls Fanning Field flights.
Search Deals
From San Diego to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($54 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 Diego 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 29, 2026.
Use the filters below to find and compare flights from San Diego to Idaho Falls that are best for you.

Fly from

San Diego

Fly to

Idaho Falls

Route

Depart

Return

Price

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/5

4:45 pm-11:36 pm

1 stop5h 51m

Idaho Falls Fanning Field

Sat 3/7

5:20 pm-11:44 pm

1 stop7h 24m

$238

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 2/12

2:38 pm-3:31 pm

1 stop23h 53m

Idaho Falls Fanning Field

Mon 2/16

10:31 pm-8:24 pm

2 stops22h 53m

$263

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/12

6:15 am-12:27 pm

1 stop5h 12m

Idaho Falls Fanning Field

Thu 3/26

6:55 pm-11:48 pm

1 stop5h 53m

$290

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/12

6:15 am-12:27 pm

1 stop5h 12m

Idaho Falls Fanning Field

Sun 3/15

6:55 pm-11:48 pm

1 stop5h 53m

$293

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 2/27

8:04 am-11:36 pm

2 stops14h 32m

Idaho Falls Fanning Field

Mon 3/2

5:20 pm-11:03 pm

1 stop6h 43m

$331

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 4/10

8:18 pm-4:19 pm

2 stops19h 01m

Idaho Falls Fanning Field

Mon 4/13

4:59 pm-11:58 pm

1 stop7h 59m

$334

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 2/26

6:15 am-4:43 pm

1 stop9h 28m

Idaho Falls Fanning Field

Thu 3/5

5:20 pm-11:03 pm

1 stop6h 43m

$365

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Sat 3/28

9:55 pm-10:52 pm

2 stops23h 57m

$403

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Sat 3/28

8:45 am-3:40 pm

1 stop5h 55m

$430

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Compare providers for flights from San Diego 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 Diego to Idaho Falls in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 Diego-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 Diego-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub 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 Diego-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 Diego to Idaho Falls

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

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

Currently, November is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $60). Flying from San Diego to Idaho Falls in December is currently the most expensive (average of $223). 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.

How much does it cost to fly round-trip from San Diego to Idaho Falls?

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 29, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from San Diego to Idaho Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,808 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,808 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,127 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 Diego to Idaho Falls?

    Airlines like Alaska Airlines and Delta fly from San Diego to Idaho Falls in about 5h 12m. The time it takes to get you to your destination can typically vary by up to 39m. The distance between San Diego and Idaho Falls is about 795 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Diego to Idaho Falls round-trip?

    Currently priced at $230, Alaska Airlines will fly you from San Diego to Idaho Falls and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $233 and $284, respectively. Alaska Airlines is currently priced 49% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from San Diego 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 Diego to Idaho Falls.

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

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

    Currently, November is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $60). Flying from San Diego to Idaho Falls in December is currently the most expensive (average of $223). 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 3 airlines flying from San Diego to Idaho Falls

Discover the top 3 airlines that operate flights from San Diego 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$230Average$325FlexibilityNo cancel feeOn-time75%
DeltaCheapest$233Average$362FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$284Average$357FlexibilityNo cancel feeOn-time69%

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