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$69+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:20 pmIDA - SAN
1 stop15h 51mMultiple Airlines
Thu 12/251:06 pmSAN - IDA
1 stop26h 06mMultiple Airlines
Deal found 12/2$247
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:55 amIDA - SAN
1 stop5h 40mDelta
Thu 12/255:03 pmSAN - IDA
1 stop4h 49mDelta
Deal found 12/2$261
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:10 pmIDA - SAN
1 stop3h 45mDelta
Thu 12/255:03 pmSAN - IDA
1 stop4h 49mDelta
Deal found 12/2$310
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:20 pmIDA - SAN
1 stop16h 18mMultiple Airlines
Thu 12/251:06 pmSAN - IDA
1 stop26h 06mMultiple Airlines
Deal found 12/2$324
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.
Tue 12/235:00 amIDA - SAN
1 stop5h 39mUnited Airlines
Wed 12/244:10 pmSAN - IDA
1 stop5h 49mUnited Airlines
Deal found 12/2$325
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.
Tue 12/2310:45 amIDA - SAN
1 stop7h 49mUnited Airlines
Thu 12/259:00 amSAN - IDA
1 stop5h 24mUnited Airlines
Deal found 12/2$331
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:20 pmIDA - SAN
1 stop16h 18mMultiple Airlines
Wed 12/244:47 pmSAN - IDA
2 stops42h 49mMultiple Airlines
Deal found 12/2$340
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:39 pmIDA - SAN
1 stop20h 59mMultiple Airlines
Thu 12/113:47 pmSAN - IDA
1 stop20h 29mMultiple Airlines
Deal found 12/2$362
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:39 pmIDA - SAN
1 stop20h 59mMultiple Airlines
Wed 12/106:25 amSAN - IDA
2 stops32h 24mMultiple Airlines
Deal found 12/2$374
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amIDA - SAN
1 stop6h 04mAmerican Airlines
Tue 12/306:15 amSAN - IDA
1 stop15h 06mAmerican Airlines
Deal found 12/2$378
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:57 pmIDA - SAN
1 stop5h 27mDelta
Thu 12/255:03 pmSAN - IDA
1 stop4h 49mDelta
Deal found 12/2$380

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$245
(Alaska Airlines)

One-way from

$69
(Kiwi.com)

Popular in

November

Cheapest in

June

Average price

$333
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. 18% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 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 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 December 4, 2025.
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

Thu 2/5

6:58 pm-7:19 pm

1 stop25h 21m

San Diego

Sun 2/8

6:15 am-6:18 pm

1 stop11h 03m

$245

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-10:07 am

1 stop16h 09m

San Diego

Mon 2/2

7:03 pm-10:59 pm

1 stop26h 56m

$254

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 1/21

9:00 am-3:29 pm

1 stop7h 29m

San Diego

Sun 1/25

6:15 am-10:59 pm

1 stop15h 44m

$254

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 1/21

4:19 pm-8:42 pm

1 stop5h 23m

San Diego

Sun 1/25

9:00 am-3:31 pm

1 stop5h 31m

$255

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Thu 12/25

5:55 am-10:35 am

1 stop5h 40m

San Diego

Thu 12/25

5:03 pm-10:52 pm

1 stop4h 49m

$261

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Thu 1/22

10:51 am-3:04 pm

1 stop5h 13m

San Diego

Sun 1/25

9:00 am-3:31 pm

1 stop5h 31m

$261

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sat 1/3

9:30 pm-10:13 am

1 stop13h 43m

San Diego

Sat 1/10

2:46 pm-12:44 pm

1 stop20h 58m

$263

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-10:55 am

2 stops16h 57m

San Diego

Thu 1/15

2:20 pm-10:59 pm

1 stop7h 39m

$278

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Thu 1/1

5:30 pm-1:15 pm

1 stop20h 45m

San Diego

Thu 1/8

2:50 pm-2:19 pm

1 stop22h 29m

$280

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Tue 1/6

6:44 pm-12:08 pm

1 stop18h 24m

$69

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 16 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 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 Idaho Falls-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-San Diego flight deals on Cheapflights vs. eDreams >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 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 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, March is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $79). Flying from Idaho Falls to San Diego in January is currently the most expensive (average of $151). 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 IDA to SAN?

Find hourly flight availability from Idaho Falls to San Diego. 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.

It’s optimal to fly from Idaho Falls to San Diego in the afternoon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at noon.

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

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 December 4, 2025.
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
11,396 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,396 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,063 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 25h 21m. The distance between Idaho Falls and San Diego is about 795 mi.

  • 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 United Airlines and Alaska Airlines, with the lowest prices starting at $237 and $261, respectively. These flights start at 51% 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, March is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $79). Flying from Idaho Falls to San Diego in January is currently the most expensive (average of $151). 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
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$184Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$237Average$367FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$261Average$340FlexibilityNo cancel feeOn-time75%

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