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Idaho Falls

$121+ Cheap flights from San Diego to Idaho Falls (SAN - 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 July 29, 2025.

Round-trip from

$175
(Mytrip)

One-way from

$121
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$362
From San Diego to Idaho Falls Fanning Field
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One-way flight from San Diego to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:16 amSAN - IDA
1 stop9h 25mMultiple Airlines
Mon 8/186:20 pmIDA - SAN
1 stop14h 01mMultiple Airlines
Deal found 7/27$175
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:45 pmSAN - IDA
1 stop18h 35mAlaska Airlines
Mon 9/223:57 pmIDA - SAN
1 stop7h 00mAlaska Airlines
Deal found 7/27$240
This Delta deal was found by Cheapflights users on 7/29. 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 8/265:00 pmSAN - IDA
1 stop4h 27mDelta
Sat 8/306:00 amIDA - SAN
1 stop3h 39mDelta
Deal found 7/29$260
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 8/154:10 pmSAN - IDA
1 stop5h 41mUnited Airlines
Sun 8/315:00 amIDA - SAN
1 stop5h 09mUnited Airlines
Deal found 7/27$362

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 July 29, 2025.
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

Fri 8/15

8:16 am-6:41 pm

1 stop9h 25m

Idaho Falls Fanning Field

Mon 8/18

6:20 pm-7:21 am

1 stop14h 01m

$175

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Mon 9/8

7:45 pm-3:20 pm

1 stop18h 35m

Idaho Falls Fanning Field

Mon 9/22

3:57 pm-9:57 pm

1 stop7h 00m

$240

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 8/26

5:00 pm-10:27 pm

1 stop4h 27m

Idaho Falls Fanning Field

Sat 8/30

6:00 am-8:39 am

1 stop3h 39m

$260

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 8/15

4:10 pm-10:51 pm

1 stop5h 41m

Idaho Falls Fanning Field

Sun 8/31

5:00 am-9:09 am

1 stop5h 09m

$362

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 9/4

12:38 pm-9:25 pm

1 stop7h 47m

$121

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 8/8

6:15 am-11:44 am

1 stop4h 29m

$123

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Sat 8/2

11:27 am-5:22 pm

1 stop4h 55m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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, October is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $380). Flying from San Diego 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.

What is the cheapest time of day to fly from SAN to IDA?

Find hourly flight availability from San Diego to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Idaho Falls in the morning. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight at noon.

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 July 29, 2025.
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
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Currently priced at $240, 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 $260 and $362, respectively. Alaska Airlines is currently priced 37% 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, October is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $380). Flying from San Diego 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 4 airlines flying from San Diego to Idaho Falls

Discover the top 4 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$230Average$325FlexibilityNo cancel feeOn-time75%
DeltaCheapest$233Average$418FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$316Average$387FlexibilityNo cancel feeOn-time69%

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