$108+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — IDA
Apr 11 — Apr 181
Round-trip
1 adult, Economy
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Best
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Cheapest flights from San Diego to Idaho FallsExplore 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 March 12, 2026.
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 March 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Tue 4/287:15 am
SAN
- IDA
1 stop7h 14m
Alaska Airlines
Sat 5/26:00 am
IDA
- SAN
1 stop13h 41m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 6/49:59 pm
SAN
- IDA
1 stop17h 09m
Multiple Airlines
Fri 6/1210:56 pm
IDA
- SAN
1 stop20h 41m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Sun 6/79:59 pm
SAN
- IDA
1 stop17h 09m
Multiple Airlines
Fri 6/1210:56 pm
IDA
- SAN
1 stop20h 41m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$246
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:00 am
SAN
- IDA
1 stop5h 17m
Alaska Airlines
Wed 6/104:14 pm
IDA
- SAN
1 stop5h 07m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 9/310:00 am
SAN
- IDA
1 stop11h 39m
Alaska Airlines
Tue 9/86:15 am
IDA
- SAN
1 stop7h 39m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$280
Best flights from San Diego to Idaho FallsDiscover carefully curated flight deals from San Diego to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
Discover carefully curated flight deals from San Diego to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Tue 4/287:15 am
SAN
- IDA
1 stop7h 14m
Alaska Airlines
Sat 5/26:00 am
IDA
- SAN
1 stop13h 41m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 5/217:58 pm
SAN
- IDA
2 stops16h 19m
Alaska Airlines
Tue 5/264:03 pm
IDA
- SAN
1 stop5h 17m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 3/208:43 pm
SAN
- IDA
1 stop19h 36m
Alaska Airlines
Wed 4/16:00 am
IDA
- SAN
2 stops16h 29m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$392
Last-minute flights from San Diego to Idaho FallsDiscover last-minute flight deals from San Diego to Idaho Falls. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Idaho Falls. Data last updated March 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
SAN
- IDA
1 stop5h 29m
American Airlines
Sat 3/146:05 am
IDA
- SAN
1 stop6h 58m
American Airlines
Deal found 3/8![American Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/204:55 pm
SAN
- IDA
1 stop5h 29m
American Airlines
Wed 4/16:05 am
IDA
- SAN
1 stop6h 58m
American Airlines
Deal found 3/10![American Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 3/269:59 pm
SAN
- IDA
1 stop16h 15m
Multiple Airlines
Mon 3/3010:13 pm
IDA
- SAN
1 stop16h 00m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 4/226:15 am
SAN
- IDA
1 stop5h 11m
Delta
Tue 4/286:58 pm
IDA
- SAN
1 stop5h 44m
Delta
Deal found 3/9![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 4/235:00 pm
SAN
- IDA
1 stop4h 40m
Delta
Tue 4/286:58 pm
IDA
- SAN
1 stop5h 44m
Delta
Deal found 3/9![Delta logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Tue 4/287:15 am
SAN
- IDA
1 stop7h 14m
Alaska Airlines
Sat 5/26:00 am
IDA
- SAN
1 stop13h 41m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$223
One-way flights from San Diego to Idaho FallsSearch for one-way flight options from San Diego to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
Search for one-way flight options from San Diego to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 4/129:56 pm
SAN
- IDA
1 stop16h 31m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/1311:28 am
SAN
- IDA
1 stop25h 04m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$129
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 4/58:43 pm
SAN
- IDA
1 stop18h 36m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$166
This Delta deal was found by Cheapflights users on 3/11. 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 5/25:55 pm
SAN
- IDA
1 stop3h 45m
Delta
Deal found 3/11![Delta logo]()
$175
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 5/28:54 am
SAN
- IDA
1 stop5h 49m
United Airlines
Deal found 3/11![United Airlines logo]()
$181
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 4/46:32 am
SAN
- IDA
1 stop5h 52m
United Airlines
Deal found 3/10![United Airlines logo]()
$196
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 4/46:15 am
SAN
- IDA
1 stop9h 04m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$215
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:32 pm
SAN
- IDA
1 stop6h 07m
American Airlines
Deal found 3/9![American Airlines logo]()
$236
Find 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 March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $223 (Alaska Airlines) |
One-way from | $108 (Kiwi.com) |
Popular in | October |
Cheapest in | May |
Average price | $449 |
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 March 12, 2026.
Use the filters below to find and compare flights from San Diego to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Tue 4/28
7:15 am-3:29 pm
1 stop7h 14m
Idaho Falls Fanning Field
Sat 5/2
6:00 am-6:41 pm
1 stop13h 41m
$223
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Thu 5/21
7:58 pm-1:17 pm
2 stops16h 19m
Idaho Falls Fanning Field
Tue 5/26
4:03 pm-8:20 pm
1 stop5h 17m
$382
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Fri 3/20
8:43 pm-5:19 pm
1 stop19h 36m
Idaho Falls Fanning Field
Wed 4/1
6:00 am-9:29 pm
2 stops16h 29m
$392
Cheapest one-way
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sun 4/12
9:56 pm-9:31 pm
2 stops22h 35m
$148
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sun 4/5
8:43 pm-4:19 pm
1 stop18h 36m
$166
Quickest one-way
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sat 5/2
5:55 pm-10:40 pm
1 stop3h 45m
$175
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sat 5/2
8:54 am-3:43 pm
1 stop5h 49m
$181
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sat 4/4
6:15 am-4:19 pm
1 stop9h 04m
$215
San DiegoIdaho Falls
SAN - IDA
SANIDA
San Diego
Sat 4/4
6:32 am-1:24 pm
1 stop5h 52m
$235
Sorted by cheapest first
Compare providers for flights from San Diego to Idaho Falls
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 San Diego to Idaho Falls in March.
| 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 San Diego-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Idaho Falls 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 San Diego-Idaho Falls 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 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.
SAN-IDA
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, November is the cheapest month in which you can book a flight from San Diego to Idaho Falls (average of $60). Flying from San Diego to Idaho Falls in December is currently the most expensive (average of $223). 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 San Diego to Idaho Falls?
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 March 12, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited 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.
Boarding
8.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Overall
8.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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.
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsRexburg
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Complete your trip
Complete your trip to Idaho Falls by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from San Diego to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Idaho Falls
Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 12, 2026.
San Diego and Idaho Falls flights
Browse other San Diego and Idaho Falls flight options. Last updated on March 12, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on March 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from San Diego to Idaho Falls
Discover the top 3 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 March 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$325 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$284 | Average$390 | FlexibilityNo cancel fee | On-time69% |