$220+ Cheap flights from San Antonio to Idaho Falls (SAT - IDA)
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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — IDA
Nov 29 — Dec 61
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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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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. 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 12/36:08 pm -
1 stop4h 59m
Sun 12/65:35 am -
1 stop7h 04m
Deal found 10/29![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:56 am -
1 stop5h 32m
Sat 11/142:35 pm -
1 stop5h 18m
Deal found 10/26![United Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:00 am -
1 stop6h 13m
Tue 12/18:00 am -
1 stop15h 06m
Deal found 10/26![American Airlines logo]()
$585
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/278:56 am -
1 stop5h 32m
Mon 11/302:35 pm -
1 stop5h 18m
Deal found 10/29![United Airlines logo]()
$657
This Delta deal was found by Cheapflights users on 10/29. 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 11/2612:45 pm -
1 stop6h 49m
Sun 11/296:57 pm -
1 stop4h 31m
Deal found 10/29![Delta logo]()
$659
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. 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 12/36:08 pm -
1 stop4h 59m
Sun 12/65:35 am -
1 stop7h 04m
Deal found 10/29![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:56 am -
1 stop5h 32m
Sat 11/142:35 pm -
1 stop5h 18m
Deal found 10/26![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/29. 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 1/238:59 am -
1 stop7h 32m
Tue 1/267:00 am -
1 stop4h 58m
Deal found 10/29![United Airlines logo]()
$469
Last-minute flights from San Antonio to Idaho FallsDiscover last-minute flight deals from San Antonio to Idaho Falls. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Idaho Falls. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:56 am -
1 stop5h 32m
Mon 11/22:35 pm -
2 stops7h 16m
Deal found 10/27![United Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:56 am -
1 stop7h 42m
Mon 11/22:35 pm -
2 stops7h 16m
Deal found 10/27![United Airlines logo]()
$669
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:30 am -
2 stops8h 58m
Sun 11/82:35 pm -
1 stop5h 18m
Deal found 10/27![United Airlines logo]()
$685
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:56 am -
1 stop5h 32m
Sat 11/142:35 pm -
1 stop5h 18m
Deal found 10/26![United Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:00 am -
1 stop6h 13m
Tue 12/18:00 am -
1 stop15h 06m
Deal found 10/26![American Airlines logo]()
$585
This Delta deal was found by Cheapflights users on 10/29. 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 11/2612:45 pm -
1 stop6h 49m
Sun 11/296:57 pm -
1 stop4h 31m
Deal found 10/29![Delta logo]()
$659
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:01 am -
2 stops31h 27m
Tue 12/14:10 pm -
2 stops15h 19m
Deal found 10/26![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/278:56 am -
1 stop5h 32m
Mon 11/302:35 pm -
1 stop5h 18m
Deal found 10/29![United Airlines logo]()
$657
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 October 30, 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 October 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/125:29 pm -
1 stop22h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Alaska Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:20 pm -
2 stops18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 10/25. 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 1/53:35 pm -
2 stops24h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Alaska Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 10/25. 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 1/57:35 am -
1 stop5h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 1/57:35 am -
3 stops32h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$728
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Delta) |
One-way from | $220 (Alaska Airlines) |
Popular in | May |
Cheapest in | September |
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 October 30, 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
Thu 11/12
5:29 pm-3:18 pm
1 stop22h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$220
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Thu 11/12
8:20 pm-1:30 pm
2 stops18h 10m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$236
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 1/5
3:35 pm-3:21 pm
2 stops24h 46m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$331
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Thu 12/3
6:08 pm-10:07 pm
1 stop4h 59m
Idaho Falls Fanning Field
Sun 12/6
5:35 am-1:39 pm
1 stop7h 04m
$359
Quickest round-trip
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 1/5
7:35 am-12:24 pm
1 stop5h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$370
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 11/10
8:56 am-1:28 pm
1 stop5h 32m
Idaho Falls Fanning Field
Sat 11/14
2:35 pm-8:53 pm
1 stop5h 18m
$429
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Sat 1/23
8:59 am-3:31 pm
1 stop7h 32m
Idaho Falls Fanning Field
Tue 1/26
7:00 am-12:58 pm
1 stop4h 58m
$469
San AntonioIdaho Falls
SAT San Antonio - IDA Idaho Falls Fanning Field
SATIDA
San Antonio
Tue 1/5
7:35 am-3:21 pm
3 stops32h 46m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$728
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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.
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 October 30, 2026.
Read through reviews of airlines operating flights from San Antonio to Idaho Falls, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.1
Comfort
7.3
Boarding
7.7
Food
6.7
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Entertainment
7.1
Crew
8.1
Comfort
7.3
Boarding
7.7
Food
6.7
Overall
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
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.
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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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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 October 30, 2026.
San Antonio and Idaho Falls flights
Browse other San Antonio and Idaho Falls flight options. Last updated on October 30, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Antonio to Idaho Falls
Discover the top airline 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$450 | FlexibilityNo cancel fee | On-time69% |