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Idaho Falls

$111+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. 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 12/264:10 pmSAN - IDA
1 stop5h 49mUnited Airlines
Tue 12/305:00 amIDA - SAN
1 stop5h 39mUnited Airlines
Deal found 12/2$367
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/196:30 amSAN - IDA
1 stop7h 52mUnited Airlines
Tue 12/2310:45 amIDA - SAN
1 stop5h 16mUnited Airlines
Deal found 12/3$371
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/177:00 pmSAN - IDA
1 stop25h 14mUnited Airlines
Sun 12/215:00 amIDA - SAN
1 stop5h 39mUnited Airlines
Deal found 12/2$543
This United Airlines deal was found by Cheapflights users on 12/4. 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.
Sun 12/286:30 amSAN - IDA
1 stop15h 29mUnited Airlines
Thu 1/15:00 amIDA - SAN
1 stop5h 39mUnited Airlines
Deal found 12/4$566
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
Sun 12/289:24 pmSAN - IDA
2 stops15h 42mAlaska Airlines
Thu 1/16:00 amIDA - SAN
2 stops18h 07mAlaska Airlines
Deal found 12/4$660
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 12/266:50 amSAN - IDA
2 stops16h 17mAlaska Airlines
Tue 12/302:43 pmIDA - SAN
2 stops10h 24mAlaska Airlines
Deal found 12/2$864
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/1910:02 pmSAN - IDA
2 stops25h 05mAlaska Airlines
Tue 12/236:00 amIDA - SAN
2 stops26h 23mAlaska Airlines
Deal found 12/3$925
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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.
Wed 12/1712:43 pmSAN - IDA
2 stops10h 16mAlaska Airlines
Sun 12/213:09 pmIDA - SAN
2 stops8h 58mAlaska Airlines
Deal found 12/2$1,054

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$258
(Delta)

One-way from

$111
(Kiwi.com)

Popular in

October

Cheapest in

August

Average price

$387
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
One-way flight from San Diego to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 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

Thu 1/8

9:45 am-5:51 pm

1 stop7h 06m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-12:48 pm

2 stops19h 13m

$258

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/12

7:21 pm-3:14 pm

1 stop18h 53m

Idaho Falls Fanning Field

Mon 3/16

10:13 pm-12:38 pm

1 stop15h 25m

$263

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 1/8

9:37 am-6:18 pm

1 stop7h 41m

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-11:55 am

2 stops17h 57m

$278

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/26

2:40 pm-10:35 pm

1 stop6h 55m

Idaho Falls Fanning Field

Tue 3/31

6:15 am-12:47 pm

1 stop7h 32m

$289

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/12

8:26 pm-11:36 pm

1 stop26h 10m

Idaho Falls Fanning Field

Mon 3/16

5:20 pm-11:03 pm

1 stop6h 43m

$315

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 3/26

2:40 pm-10:35 pm

1 stop6h 55m

Idaho Falls Fanning Field

Mon 3/30

4:00 pm-8:37 pm

1 stop5h 37m

$318

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 12/11

3:47 pm-1:16 pm

1 stop20h 29m

$111

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Wed 5/13

7:00 am-2:27 pm

1 stop6h 27m

$130

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 12/12

1:33 pm-11:59 am

1 stop21h 26m

$142

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Fri 12/19

4:10 pm-10:59 pm

1 stop5h 49m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 14 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Idaho Falls flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 February is currently the most expensive (average of $170). 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 December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Idaho Falls in the evening. If you’re flexible enough to do this you can expect to save up to 46% 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 December 4, 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
11,396 reviews

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,396 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
United Airlines
7.4
Good
9,063 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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 Delta and Alaska Airlines fly from San Diego to Idaho Falls in about 7h 06m. The time it takes to get you to your destination can typically vary by up to 35m. 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 $203, Delta will fly you from San Diego to Idaho Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and United Airlines - these airlines can fly you to your destination from $230 and $308, respectively. Delta is currently priced 50% 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 February is currently the most expensive (average of $170). 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$220Average$365FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$230Average$325FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$308Average$357FlexibilityNo cancel feeOn-time69%

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