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$146+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$242
(Kiwi.com)

One-way from

$146
(United Airlines)

Popular in

September

Cheapest in

June

Average price

$565
From Idaho Falls Fanning Field to San Diego
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One-way flight from Idaho Falls Fanning Field to San Diego
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Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/67:40 pmIDA - SAN
1 stop4h 37mMultiple Airlines
Fri 10/106:25 amSAN - IDA
1 stop8h 49mMultiple Airlines
Deal found 9/10$242
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:15 pmIDA - SAN
1 stop6h 58mHawaiian Airlines
Wed 10/228:00 amSAN - IDA
1 stop6h 38mHawaiian Airlines
Deal found 9/11$260
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 11/29:13 pmIDA - SAN
1 stop20h 27mMultiple Airlines
Sun 11/93:59 pmSAN - IDA
1 stop20h 08mMultiple Airlines
Deal found 9/10$276
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/254:15 pmIDA - SAN
1 stop7h 50mAlaska Airlines
Tue 10/2811:37 amSAN - IDA
1 stop11h 22mAlaska Airlines
Deal found 9/10$284
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/154:15 pmIDA - SAN
1 stop7h 50mAlaska Airlines
Wed 10/227:15 amSAN - IDA
2 stops14h 23mAlaska Airlines
Deal found 9/11$289
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 10/86:00 amIDA - SAN
2 stops13h 24mAlaska Airlines
Tue 10/142:30 pmSAN - IDA
1 stop7h 08mAlaska Airlines
Deal found 9/10$324
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/85:00 amIDA - SAN
1 stop5h 12mUnited Airlines
Tue 10/1412:52 pmSAN - IDA
1 stop7h 00mUnited Airlines
Deal found 9/10$331
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/85:56 pmIDA - SAN
1 stop5h 19mUnited Airlines
Sat 10/116:53 amSAN - IDA
1 stop5h 40mUnited Airlines
Deal found 9/11$355

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 September 11, 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

Mon 10/6

7:40 pm-11:17 pm

1 stop4h 37m

San Diego

Fri 10/10

6:25 am-4:14 pm

1 stop8h 49m

$242

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 10/15

4:15 pm-10:13 pm

1 stop6h 58m

San Diego

Wed 10/22

2:30 pm-10:38 pm

1 stop7h 08m

$260

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sun 11/2

9:13 pm-4:40 pm

1 stop20h 27m

San Diego

Sun 11/9

3:59 pm-1:07 pm

1 stop20h 08m

$276

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sat 10/25

4:15 pm-11:05 pm

1 stop7h 50m

San Diego

Tue 10/28

11:37 am-11:59 pm

1 stop11h 22m

$284

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 10/15

4:15 pm-8:29 am

2 stops17h 14m

San Diego

Wed 10/22

2:30 pm-10:38 pm

1 stop7h 08m

$289

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 10/8

6:00 am-6:24 pm

2 stops13h 24m

San Diego

Tue 10/14

2:30 pm-10:38 pm

1 stop7h 08m

$324

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 2/25

8:00 am-2:17 pm

1 stop7h 17m

San Diego

Sun 3/1

9:59 pm-10:38 pm

2 stops23h 39m

$326

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 2/16

5:57 pm-10:28 pm

1 stop5h 31m

$146

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 2/16

10:31 pm-10:46 pm

3 stops25h 15m

$237

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 2/16

4:00 pm-4:23 pm

2 stops25h 23m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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, August is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $286). Flying from Idaho Falls to San Diego in March is currently the most expensive (average of $366). 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 September 11, 2025.

It’s optimal to fly from Idaho Falls to San Diego in the afternoon. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

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 September 11, 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
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

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
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

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
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

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 6h 58m. 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 $184. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $192 and $253, respectively. These flights start at 53% 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, August is the cheapest month in which you can book a flight from Idaho Falls to San Diego (average of $286). Flying from Idaho Falls to San Diego in March is currently the most expensive (average of $366). 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$184Average$379FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$192Average$351FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$253Average$303FlexibilityNo cancel feeOn-time75%

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