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$85+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$171
(Mytrip)

One-way from

$85
(Mytrip)

Popular in

March

Cheapest in

June

Average price

$384
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. 13% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:12 pmIDA - SAN
1 stop5h 54mMultiple Airlines
Fri 8/158:16 amSAN - IDA
1 stop9h 25mMultiple Airlines
Deal found 7/26$171
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 10/86:00 amIDA - SAN
1 stop8h 57mAlaska Airlines
Tue 10/148:00 amSAN - IDA
1 stop6h 38mAlaska Airlines
Deal found 7/28$240
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:32 pmIDA - SAN
1 stop7h 32mAmerican Airlines
Sun 8/318:15 amSAN - IDA
2 stops12h 04mAmerican Airlines
Deal found 7/27$246
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/224:15 pmIDA - SAN
1 stop7h 14mUnited Airlines
Sat 12/68:45 amSAN - IDA
1 stop5h 41mUnited Airlines
Deal found 7/28$292

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 July 29, 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 8/11

6:12 pm-11:06 pm

1 stop5h 54m

San Diego

Fri 8/15

8:16 am-6:41 pm

1 stop9h 25m

$171

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 10/8

6:00 am-1:57 pm

1 stop8h 57m

San Diego

Tue 10/14

8:00 am-3:38 pm

1 stop6h 38m

$240

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 8/27

1:32 pm-8:04 pm

1 stop7h 32m

San Diego

Sun 8/31

8:15 am-9:19 pm

2 stops12h 04m

$246

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Sat 11/22

4:15 pm-10:29 pm

1 stop7h 14m

San Diego

Sat 12/6

8:45 am-3:26 pm

1 stop5h 41m

$292

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 8/25

5:41 pm-11:37 pm

1 stop6h 56m

$85

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Tue 9/9

6:52 pm-10:39 pm

1 stop4h 47m

$121

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 8/25

1:17 pm-9:55 pm

2 stops9h 38m

$126

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Mon 8/4

6:03 pm-10:14 pm

1 stop5h 11m

$481

Idaho FallsSan Diego

IDA - SAN

IDASAN

Idaho Falls Fanning Field

Wed 8/6

6:15 am-11:42 pm

2 stops18h 27m

$747

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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 July 29, 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 July 29, 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

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Idaho Falls to San Diego round-trip?

    Flying on Alaska Airlines is currently your cheapest option to San Diego, with prices starting at $240. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $246 and $292, respectively. These flights start at 38% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Idaho Falls to San Diego one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $121. Users have also found prices from $126 and $481 on American Airlines and United Airlines, respectively.

  • 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$184Average$392FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$192Average$373FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$253Average$294FlexibilityNo cancel feeOn-time75%

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