$91+ Cheap flights from Idaho Falls to San Diego (IDA - SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAN
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to San Diego
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Best
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Cheapest flights from Idaho Falls to San DiegoExplore 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, 2026.
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, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/267:30 pm -
2 stops39h 41m
Thu 11/58:32 pm -
1 stop15h 58m
Deal found 9/9![Multiple Airlines logo]()
$224
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.
Fri 10/308:28 pm -
2 stops23h 10m
Thu 11/58:32 pm -
1 stop15h 58m
Deal found 9/10![Multiple Airlines logo]()
$252
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.
Tue 10/276:09 am -
1 stop8h 14m
Wed 11/41:48 pm -
1 stop8h 06m
Deal found 9/10![Alaska Airlines logo]()
$261
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.
Wed 11/186:00 am -
1 stop3h 48m
Sat 11/216:15 am -
1 stop5h 00m
Deal found 9/10![Delta logo]()
$271
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.
Tue 10/276:56 pm -
2 stops5h 46m
Sat 10/316:15 am -
1 stop5h 07m
Deal found 9/10![Delta logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/267:30 pm -
2 stops15h 41m
Sun 11/18:32 pm -
1 stop15h 04m
Deal found 9/8![Multiple Airlines logo]()
$283
Best flights from Idaho Falls to San DiegoDiscover carefully curated flight deals from Idaho Falls to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Idaho Falls to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 10/231:58 pm -
1 stop6h 45m
Tue 10/276:15 am -
1 stop8h 05m
Deal found 9/9![Alaska Airlines logo]()
$291
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 10/296:56 pm -
2 stops5h 46m
Sat 10/316:15 am -
1 stop5h 07m
Deal found 9/10![Delta logo]()
$301
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 10/255:40 pm -
1 stop5h 50m
Tue 10/278:45 am -
1 stop5h 53m
Deal found 9/9![United Airlines logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 11/11:53 pm -
1 stop5h 54m
Wed 11/42:48 pm -
1 stop7h 06m
Deal found 9/9![Alaska Airlines logo]()
$342
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.
Mon 11/166:00 am -
2 stops10h 05m
Thu 11/195:13 pm -
1 stop3h 46m
Deal found 9/10![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/6. 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 12/14:10 pm -
1 stop5h 58m
Sat 12/56:45 am -
1 stop5h 52m
Deal found 9/6![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/166:56 pm -
1 stop5h 59m
Mon 10/265:01 pm -
1 stop4h 09m
Deal found 9/9![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 12/14:00 pm -
2 stops16h 19m
Sat 12/511:52 am -
1 stop9h 47m
Deal found 9/6![Alaska Airlines logo]()
$363
Last-minute flights from Idaho Falls to San DiegoDiscover last-minute flight deals from Idaho Falls to San Diego. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to San Diego. Data last updated September 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/267:30 pm -
2 stops39h 41m
Thu 11/58:32 pm -
1 stop15h 58m
Deal found 9/9![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/267:30 pm -
2 stops15h 41m
Sun 11/18:32 pm -
1 stop15h 04m
Deal found 9/8![Multiple Airlines logo]()
$283
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.
Tue 10/276:09 am -
1 stop8h 14m
Wed 11/41:48 pm -
1 stop8h 06m
Deal found 9/10![Alaska Airlines logo]()
$261
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.
Tue 10/276:56 pm -
2 stops5h 46m
Sat 10/316:15 am -
1 stop5h 07m
Deal found 9/10![Delta logo]()
$276
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.
Fri 10/308:28 pm -
2 stops23h 10m
Thu 11/58:32 pm -
1 stop15h 58m
Deal found 9/10![Multiple Airlines logo]()
$252
One-way flights from Idaho Falls to San DiegoSearch for one-way flight options from Idaho Falls to San Diego. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Idaho Falls to San Diego. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/57:42 pm -
1 stop22h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$91
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 10/129:33 pm -
2 stops41h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/910:49 pm -
1 stop19h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$128
This Priceline deal was found by Cheapflights users on 9/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:09 am -
1 stop6h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$131
This Delta deal was found by Cheapflights users on 9/6. 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 10/286:56 pm -
2 stops5h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$151
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.
Fri 10/166:56 pm -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$166
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 10/66:56 pm -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 9/193:57 pm -
1 stop5h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$176
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $224 (Kiwi.com) |
One-way from | $91 (Kiwi.com) |
Popular in | October |
Cheapest in | March |
Average price | $454 |
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 7,457,451 searches. Data last updated September 11, 2026.
Use the filters below to find and compare flights from Idaho Falls to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Wed 10/28
6:09 am-11:50 am
1 stop6h 41m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$131
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Wed 11/18
5:40 pm-10:30 pm
1 stop5h 50m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$131
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Wed 10/28
6:56 pm-11:42 pm
2 stops5h 46m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$151
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Fri 10/9
10:49 pm-1:16 pm
2 stops39h 27m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$161
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Sat 10/17
4:05 pm-8:39 pm
1 stop5h 34m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$171
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Tue 10/6
6:56 pm-11:55 pm
1 stop5h 59m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$171
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Wed 11/25
5:40 pm-10:30 pm
1 stop5h 50m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$171
Quickest round-trip
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Sat 9/19
3:57 pm-8:21 pm
1 stop5h 24m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$176
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Mon 10/19
5:51 pm-10:27 pm
1 stop5h 36m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$201
Idaho FallsSan Diego
IDA Idaho Falls Fanning Field - SAN San Diego
IDASAN
Idaho Falls Fanning Field
Wed 11/25
6:37 pm-7:16 pm
2 stops25h 39m
San Diego
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$211
Showing 1-10 of 19 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
IDA-SAN
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 $340). Flying from Idaho Falls to San Diego in October is currently the most expensive (average of $495). 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.
How much does it cost to fly round-trip from Idaho Falls to San Diego?
Airfare is below average for this route at the moment.
Idaho Falls to San Diego flights typically cost between $411 and $494 in October.The cheapest round-trip price found within the last 5 days was $224 on Multiple Airlines (Oct 26-Nov 5).
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, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andUnited 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.
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Idaho Falls and San Diego flights
Browse other Idaho Falls and San Diego flight options. Last updated on September 11, 2026.
Other flights from Idaho Falls
Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
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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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$360 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$437 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$250 | Average$409 | FlexibilityNo cancel fee | On-timeN/A |