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$122+ Cheap flights from Idaho Falls to San Diego (IDA - SAN)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAN
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Idaho Falls to San Diego

Cheapest flights from Idaho Falls to San Diego
Explore the most affordable flight options available from Idaho Falls to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

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.
Sat 3/75:20 pm
IDA
-
SAN
1 stop7h 24m
Alaska Airlines
Tue 3/103:45 pm
SAN
-
IDA
1 stop6h 51m
Alaska Airlines
Deal found 1/26$217
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3010:13 pm
IDA
-
SAN
1 stop16h 00m
Multiple Airlines
Fri 4/311:58 am
SAN
-
IDA
1 stop24h 06m
Multiple Airlines
Deal found 1/26$229
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3010:13 pm
IDA
-
SAN
1 stop16h 00m
Multiple Airlines
Sun 4/59:56 pm
SAN
-
IDA
1 stop16h 16m
Multiple Airlines
Deal found 1/26$230
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:30 pm
IDA
-
SAN
1 stop25h 34m
Multiple Airlines
Fri 4/311:58 am
SAN
-
IDA
1 stop24h 06m
Multiple Airlines
Deal found 1/26$234
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.
Mon 3/25:20 pm
IDA
-
SAN
1 stop6h 43m
Alaska Airlines
Tue 3/103:45 pm
SAN
-
IDA
1 stop6h 51m
Alaska Airlines
Deal found 1/26$239
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:20 pm
IDA
-
SAN
2 stops29h 04m
Multiple Airlines
Sun 3/89:07 pm
SAN
-
IDA
1 stop17h 24m
Multiple Airlines
Deal found 1/26$242
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/610:30 pm
IDA
-
SAN
1 stop15h 43m
Multiple Airlines
Thu 3/129:07 pm
SAN
-
IDA
1 stop17h 07m
Multiple Airlines
Deal found 1/26$246
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2710:13 pm
IDA
-
SAN
1 stop16h 00m
Multiple Airlines
Sun 4/59:56 pm
SAN
-
IDA
1 stop16h 16m
Multiple Airlines
Deal found 1/26$252
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2710:13 pm
IDA
-
SAN
1 stop16h 00m
Multiple Airlines
Mon 4/611:53 am
SAN
-
IDA
1 stop23h 39m
Multiple Airlines
Deal found 1/26$256
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.
Mon 3/25:20 pm
IDA
-
SAN
1 stop6h 43m
Alaska Airlines
Thu 3/124:45 pm
SAN
-
IDA
1 stop5h 51m
Alaska Airlines
Deal found 1/26$261
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 3/65:20 pm
IDA
-
SAN
1 stop6h 43m
Alaska Airlines
Wed 3/113:45 pm
SAN
-
IDA
1 stop6h 51m
Alaska Airlines
Deal found 1/26$263

Find flight deals from Idaho Falls to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to San Diego (SAN). 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 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Alaska Airlines)

One-way from

$122
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$371
Provider with most accurate pricing for Idaho Falls Fanning Field-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-San Diego flights.
Search Deals
From Idaho Falls Fanning Field to San Diego
Search Deals
One-way flight from Idaho Falls Fanning Field to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 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 Idaho Falls to San Diego 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 27, 2026.
Use the filters below to find and compare flights from Idaho Falls to San Diego that are best for you.

Fly from

Idaho Falls

Fly to

San Diego

Route

Depart

Return

Price

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sat 3/7

5:20 pm-11:44 pm

1 stop7h 24m

San Diego

Tue 3/10

3:45 pm-11:36 pm

1 stop6h 51m

$217

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Tue 3/3

5:25 am-8:45 am

1 stop4h 20m

San Diego

Thu 3/12

6:15 am-12:27 pm

1 stop5h 12m

$263

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Fri 3/6

5:20 pm-11:03 pm

1 stop6h 43m

San Diego

Wed 3/11

3:45 pm-11:36 pm

1 stop6h 51m

$263

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Tue 3/3

5:20 pm-11:03 pm

1 stop6h 43m

San Diego

Sat 3/7

4:43 pm-11:36 pm

1 stop5h 53m

$274

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Fri 4/17

6:58 pm-11:42 pm

1 stop5h 44m

San Diego

Tue 4/28

5:00 pm-10:40 pm

1 stop4h 40m

$280

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Thu 6/4

6:03 pm-10:25 pm

1 stop5h 22m

San Diego

Sat 6/6

6:35 am-3:39 pm

1 stop8h 04m

$285

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 4/1

6:00 am-1:41 pm

1 stop8h 41m

San Diego

Wed 4/8

6:15 am-4:19 pm

1 stop9h 04m

$295

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sun 3/8

8:00 am-1:20 pm

1 stop6h 20m

San Diego

Thu 3/12

7:50 am-4:43 pm

1 stop7h 53m

$295

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sat 3/7

5:20 pm-11:44 pm

1 stop7h 24m

San Diego

Mon 3/9

8:26 pm-4:43 pm

1 stop19h 17m

$310

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 2/23

10:31 pm-8:24 pm

2 stops22h 53m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 18 results
1
2

Compare providers for flights from Idaho Falls to San Diego

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

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

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

Currently, May is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $89). Flying from Idaho Falls to San Diego in December is currently the most expensive (average of $183). 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 San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated January 27, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines from Idaho Falls to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,799 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
11,799 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
8,121 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
9,207 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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 Idaho Falls to San Diego. 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 Idaho Falls to San Diego?

    Departing from Idaho Falls to San Diego will take you 4h 20m. The distance between Idaho Falls and San Diego 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 Idaho Falls to San Diego round-trip?

    Flying on Delta is currently your cheapest option to San Diego, with prices starting at $175. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $224 and $237, respectively. These flights start at 54% lower than the current average price 3 months from now.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to San Diego.

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

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

    Currently, May is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $89). Flying from Idaho Falls to San Diego in December is currently the most expensive (average of $183). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Alternative routes for Idaho Falls to San Diego

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Top 3 airlines flying from Idaho Falls to San Diego

Discover the top 3 airlines that operate flights from Idaho Falls to San Diego. 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$175Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$224Average$437FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$237Average$364FlexibilityNo cancel feeOn-time69%

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