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Idaho Falls

$131+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$209
(Kiwi.com)

One-way from

$131
(American Airlines)

Popular in

September

Cheapest in

August

Average price

$501
From San Diego to Idaho Falls Fanning Field
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One-way flight from San Diego to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 6% potential increase in price ($26 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 September 2025
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Find 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 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.
Thu 9/2512:33 pmSAN - IDA
1 stop26h 32mMultiple Airlines
Mon 9/299:39 pmIDA - SAN
1 stop15h 52mMultiple Airlines
Deal found 9/10$209
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:11 amSAN - IDA
1 stop12h 12mMultiple Airlines
Sun 10/1910:13 pmIDA - SAN
1 stop10h 13mMultiple Airlines
Deal found 9/11$243
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.
Mon 10/275:25 pmSAN - IDA
1 stop5h 34mAlaska Airlines
Tue 11/43:50 pmIDA - SAN
1 stop6h 06mAlaska Airlines
Deal found 9/11$260
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:15 amSAN - IDA
1 stop5h 24mDelta
Tue 12/27:06 pmIDA - SAN
1 stop5h 57mDelta
Deal found 9/10$261
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:15 amSAN - IDA
1 stop5h 24mDelta
Sat 11/156:57 pmIDA - SAN
1 stop4h 50mDelta
Deal found 9/11$285
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 10/295:25 pmSAN - IDA
1 stop5h 34mAlaska Airlines
Wed 11/53:50 pmIDA - SAN
1 stop6h 06mAlaska Airlines
Deal found 9/11$295
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.
Mon 10/275:25 pmSAN - IDA
1 stop5h 34mAlaska Airlines
Sun 11/25:05 amIDA - SAN
1 stop7h 51mAlaska Airlines
Deal found 9/11$296
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:10 pmSAN - IDA
1 stop16h 23mDelta
Tue 11/116:57 pmIDA - SAN
1 stop5h 58mDelta
Deal found 9/11$303
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.
Fri 10/315:25 pmSAN - IDA
1 stop5h 34mAlaska Airlines
Sat 11/83:50 pmIDA - SAN
1 stop8h 09mAlaska Airlines
Deal found 9/11$308
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:30 pmSAN - IDA
1 stop4h 03mDelta
Sun 11/236:00 amIDA - SAN
1 stop3h 48mDelta
Deal found 9/11$309

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 September 11, 2025.
Use the filters below to find and compare flights from San Diego to Idaho Falls that are best for you.

Fly from

San Diego

Fly to

Idaho Falls

Route

Depart

Return

Price

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 3/3

2:40 pm-10:38 pm

1 stop6h 58m

Idaho Falls Fanning Field

Wed 3/4

4:00 pm-8:42 pm

1 stop5h 42m

$260

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 10/28

5:25 pm-11:59 pm

1 stop5h 34m

Idaho Falls Fanning Field

Tue 11/4

3:50 pm-8:56 pm

1 stop6h 06m

$260

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 11/13

5:25 pm-11:59 pm

1 stop5h 34m

Idaho Falls Fanning Field

Thu 11/20

3:50 pm-10:59 pm

1 stop8h 09m

$260

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Mon 11/10

5:10 pm-10:19 pm

1 stop4h 09m

Idaho Falls Fanning Field

Tue 11/18

6:57 pm-11:55 pm

1 stop5h 58m

$261

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 11/27

6:15 am-12:39 pm

1 stop5h 24m

Idaho Falls Fanning Field

Wed 12/3

7:06 pm-12:03 am

1 stop5h 57m

$261

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 11/11

4:58 pm-10:19 pm

1 stop4h 21m

Idaho Falls Fanning Field

Tue 11/18

6:57 pm-11:55 pm

1 stop5h 58m

$261

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Wed 11/5

6:15 am-12:33 pm

1 stop5h 18m

Idaho Falls Fanning Field

Tue 11/11

6:57 pm-11:55 pm

1 stop5h 58m

$261

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Thu 9/25

12:33 pm-4:05 pm

1 stop26h 32m

Idaho Falls Fanning Field

Mon 9/29

9:39 pm-10:24 pm

2 stops25h 45m

$276

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Wed 11/12

5:10 pm-10:19 pm

1 stop4h 09m

Idaho Falls Fanning Field

Wed 11/19

6:57 pm-11:55 pm

1 stop5h 58m

$285

San DiegoIdaho Falls

SAN - IDA

SANIDA

San Diego

Tue 3/3

10:30 am-10:38 pm

2 stops11h 08m

Idaho Falls Fanning Field

Wed 3/4

8:00 am-12:47 pm

1 stop5h 47m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
1
2

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, October is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $380). Flying from San Diego to Idaho Falls in December is currently the most expensive (average of $578). 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 SAN to IDA?

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

A simple way to save on the total cost of your ticket is to fly from San Diego to Idaho Falls in the morning. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight at noon.

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 September 11, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines 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
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

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 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 Hawaiian Airlines, Alaska Airlines, and Delta fly from San Diego to Idaho Falls in about 4h 09m. The time it takes to get you to your destination can typically vary by up to 2h 49m. The distance between San Diego and Idaho Falls 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 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. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $233 and $264, respectively. Alaska Airlines is currently priced 41% 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, October is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $380). Flying from San Diego to Idaho Falls in December is currently the most expensive (average of $578). 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

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Top 4 airlines flying from San Diego to Idaho Falls

Discover the top 4 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$230Average$325FlexibilityNo cancel feeOn-time75%
DeltaCheapest$233Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$264Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$308Average$387FlexibilityNo cancel feeOn-time69%

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