HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$158+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2026.

This Expedia deal was found by Cheapflights users on 4/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:55 am
SAN
-
IDA
1 stop5h 11m
Alaska Airlines
Mon 8/314:14 pm
IDA
-
SAN
1 stop5h 10m
Alaska Airlines
Deal found 4/27$276
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 9/38:13 pm
SAN
-
IDA
1 stop15h 53m
Alaska Airlines
Tue 9/86:18 am
IDA
-
SAN
1 stop6h 28m
Alaska Airlines
Deal found 4/28$289
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 5/233:56 pm
SAN
-
IDA
1 stop5h 57m
Alaska Airlines
Wed 5/274:03 pm
IDA
-
SAN
1 stop5h 17m
Alaska Airlines
Deal found 4/25$301
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:17 pm
SAN
-
IDA
1 stop15h 38m
Multiple Airlines
Tue 7/77:34 pm
IDA
-
SAN
1 stop21h 17m
Multiple Airlines
Deal found 4/26$308
This Expedia deal was found by Cheapflights users on 4/25. 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.
Tue 5/197:15 am
SAN
-
IDA
1 stop7h 11m
Alaska Airlines
Sat 5/234:03 pm
IDA
-
SAN
1 stop5h 04m
Alaska Airlines
Deal found 4/25$321
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Thu 8/206:30 am
SAN
-
IDA
1 stop5h 54m
United Airlines
Sat 9/54:10 pm
IDA
-
SAN
1 stop7h 17m
United Airlines
Deal found 4/25$326
This United Airlines deal was found by Cheapflights users on 4/24. 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 9/136:30 am
SAN
-
IDA
1 stop7h 59m
United Airlines
Fri 9/184:10 pm
IDA
-
SAN
1 stop7h 17m
United Airlines
Deal found 4/24$337
This Delta deal was found by Cheapflights users on 4/28. 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.
Tue 5/125:01 pm
SAN
-
IDA
1 stop4h 41m
Delta
Sat 5/1611:30 am
IDA
-
SAN
1 stop5h 26m
Delta
Deal found 4/28$341

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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$276
(Expedia)

One-way from

$158
(Trip.com)

Popular in

October

Cheapest in

May

Average price

$339
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. 14% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 2026.
Use the filters below to find and compare flights from San Diego to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 9/3

8:13 pm-1:06 pm

1 stop15h 53m

Idaho Falls Fanning Field

Tue 9/8

6:18 am-11:46 am

1 stop6h 28m

$291

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Sat 5/23

3:56 pm-10:53 pm

1 stop5h 57m

Idaho Falls Fanning Field

Wed 5/27

4:03 pm-8:20 pm

1 stop5h 17m

$301

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Wed 8/26

6:55 am-1:06 pm

1 stop5h 11m

Idaho Falls Fanning Field

Mon 8/31

4:14 pm-12:20 pm

2 stops21h 06m

$339

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 5/21

9:50 am-2:34 pm

1 stop3h 44m

Idaho Falls Fanning Field

Tue 5/26

6:54 pm-11:43 pm

1 stop5h 49m

$365

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Wed 5/13

5:01 pm-10:42 pm

1 stop4h 41m

Idaho Falls Fanning Field

Sun 5/17

6:54 pm-11:43 pm

1 stop5h 49m

$371
Quickest round-trip

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Mon 5/11

9:50 am-2:34 pm

1 stop3h 44m

Idaho Falls Fanning Field

Fri 5/15

3:16 pm-6:45 pm

1 stop4h 29m

$371
Cheapest one-way
Quickest one-way

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 7/7

6:50 am-1:06 pm

1 stop5h 16m

$158

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 6/23

6:50 am-1:06 pm

1 stop5h 16m

$160

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Sun 9/13

4:12 pm-1:06 pm

1 stop19h 54m

$175

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 6/23

3:30 pm-1:06 pm

3 stops20h 36m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 11 resultsSorted by cheapest first
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 April.
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, May is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $309). Flying from San Diego to Idaho Falls in October is currently the most expensive (average of $648). 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 April 29, 2026.
See what other customers who have flown with Alaska Airlines and Delta 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
7.9
Good
12,314 reviews

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,314 reviews
Alaska Airlines
7.9
Good
12,314 reviews

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.9
Good
8,465 reviews
Alaska Airlines
7.9
Good
12,314 reviews

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 fly from San Diego to Idaho Falls in about 15h 53m. The time it takes to get you to your destination can typically vary by up to . The distance between San Diego and Idaho Falls is about 795 mi.

  • 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. Check Cheapflights for deals on Delta for as low as $233. Alaska Airlines is currently priced 47% 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, May is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $309). Flying from San Diego to Idaho Falls in October is currently the most expensive (average of $648). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from San Diego to Idaho Falls

Discover the top 2 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$230Average$325FlexibilityNo cancel feeOn-time75%
DeltaCheapest$233Average$362FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.