$329+ Cheap flights from San Antonio to Idaho Falls (SAT - 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — IDA
Sep 19 — Sep 261
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Idaho Falls 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 San Antonio to Idaho Falls
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Best
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One-way
Cheapest flights from San Antonio to Idaho FallsExplore the most affordable flight options available from San Antonio to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
Explore the most affordable flight options available from San Antonio to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2026.
This Delta deal was found by Cheapflights users on 8/18. 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 10/146:00 pm -
1 stop5h 10m
Sun 10/186:56 pm -
1 stop4h 34m
Deal found 8/18![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 8/18. 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 9/196:45 am -
1 stop6h 30m
Sat 9/266:00 am -
2 stops7h 46m
Deal found 8/18![Delta logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/84:34 pm -
2 stops21h 47m
Tue 10/136:09 am -
2 stops16h 50m
Deal found 8/18![Alaska Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Fri 10/235:30 am -
1 stop5h 23m
Sun 11/12:35 pm -
1 stop5h 18m
Deal found 8/19![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 8/17. 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 12/54:45 pm -
1 stop5h 23m
Tue 12/82:35 pm -
1 stop5h 32m
Deal found 8/17![United Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 8/19. 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 8/205:00 am -
1 stop7h 30m
Thu 8/272:20 pm -
1 stop6h 40m
Deal found 8/19![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 8/205:30 am -
2 stops10h 53m
Thu 8/272:25 pm -
1 stop5h 27m
Deal found 8/19![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 8/205:30 am -
1 stop5h 21m
Sun 8/235:53 pm -
1 stop5h 04m
Deal found 8/19![United Airlines logo]()
$539
Best flights from San Antonio to Idaho FallsDiscover carefully curated flight deals from San Antonio to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
Discover carefully curated flight deals from San Antonio to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
This United Airlines deal was found by Cheapflights users on 8/15. 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 12/54:45 pm -
1 stop5h 23m
Tue 12/82:35 pm -
1 stop5h 32m
Deal found 8/15![United Airlines logo]()
$499
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/194:34 pm -
2 stops23h 46m
Mon 10/263:57 pm -
2 stops23h 07m
Deal found 8/18![Alaska Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/310:24 pm -
1 stop11h 30m
Thu 9/108:20 pm -
2 stops22h 05m
Deal found 8/17![Multiple Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/194:45 pm -
1 stop5h 33m
Sat 9/265:51 pm -
1 stop5h 07m
Deal found 8/20![United Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/25:30 am -
1 stop5h 21m
Sun 9/610:35 am -
2 stops11h 04m
Deal found 8/17![United Airlines logo]()
$601
Last-minute flights from San Antonio to Idaho FallsDiscover last-minute flight deals from San Antonio to Idaho Falls. Data last updated August 20, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Idaho Falls. Data last updated August 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/19. 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 8/205:00 am -
1 stop7h 30m
Thu 8/272:20 pm -
1 stop6h 40m
Deal found 8/19![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 8/205:30 am -
2 stops10h 53m
Thu 8/272:25 pm -
1 stop5h 27m
Deal found 8/19![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 8/205:30 am -
1 stop5h 21m
Sun 8/235:53 pm -
1 stop5h 04m
Deal found 8/19![United Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/25:30 am -
1 stop5h 21m
Sun 9/610:35 am -
1 stop5h 20m
Deal found 8/17![United Airlines logo]()
$596
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/310:24 pm -
1 stop11h 30m
Thu 9/108:20 pm -
2 stops22h 05m
Deal found 8/17![Multiple Airlines logo]()
$607
This Delta deal was found by Cheapflights users on 8/18. 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 9/196:45 am -
1 stop6h 30m
Sat 9/266:00 am -
2 stops7h 46m
Deal found 8/18![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/194:45 pm -
1 stop5h 33m
Sat 9/265:51 pm -
1 stop5h 07m
Deal found 8/18![United Airlines logo]()
$543
One-way flights from San Antonio to Idaho FallsSearch for one-way flight options from San Antonio to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
Search for one-way flight options from San Antonio to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/85:30 am -
1 stop5h 21m
Deal found 8/18![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 9/88:26 pm -
3 stops48h 04m
Deal found 8/18![Multiple Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 9/85:29 pm -
2 stops20h 55m
Deal found 8/18![Alaska Airlines logo]()
$473
Find flight deals from San Antonio to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 August 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Delta) |
One-way from | $329 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $581 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio 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 7,457,451 searches. Data last updated August 20, 2026.
Use the filters below to find and compare flights from San Antonio to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Sat 12/5
4:45 pm-9:08 pm
1 stop5h 23m
Idaho Falls Fanning Field
Tue 12/8
2:35 pm-9:07 pm
1 stop5h 32m
$499
Quickest round-trip
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Sat 9/19
4:45 pm-9:18 pm
1 stop5h 33m
Idaho Falls Fanning Field
Sat 9/26
5:51 pm-11:58 pm
1 stop5h 07m
$543
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Mon 10/19
4:34 pm-3:20 pm
2 stops23h 46m
Idaho Falls Fanning Field
Mon 10/26
3:57 pm-4:04 pm
2 stops23h 07m
$582
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Wed 9/2
5:30 am-9:51 am
1 stop5h 21m
Idaho Falls Fanning Field
Sun 9/6
10:35 am-10:39 pm
2 stops11h 04m
$601
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Thu 9/3
10:24 pm-8:54 am
1 stop11h 30m
Idaho Falls Fanning Field
Thu 9/10
8:20 pm-7:25 pm
2 stops22h 05m
$607
Cheapest one-way
Quickest one-way
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 9/8
5:30 am-9:51 am
1 stop5h 21m
$329
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 9/8
5:29 pm-1:24 pm
2 stops20h 55m
$473
Sorted by cheapest first
Compare providers for flights from San Antonio 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 Antonio to Idaho Falls in August.
| 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 Antonio-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 Antonio-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-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 Antonio-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 Antonio to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from San Antonio with our price prediction graph.
SAT-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 Antonio 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 August 20, 2026.
Read through reviews of airlines operating flights from San Antonio to Idaho Falls, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Food
7.2
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Food
7.2
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentStacey-Ann,Aug 2023
IAH - ATL
Related info for your journey
Find useful and relevant information for your journey from San Antonio 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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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 August 20, 2026.
San Antonio and Idaho Falls flights
Browse other San Antonio and Idaho Falls flight options. Last updated on August 20, 2026.
Other flights from San Antonio
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San Antonio to Idaho Falls
Discover the top 2 airlines that operate flights from San Antonio 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 7,457,451 searches. Data last updated August 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$328 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$357 | Average$473 | FlexibilityNo cancel fee | On-time69% |