$328+ Cheap flights from Idaho Falls to San Antonio (IDA - SAT)
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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAT
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to San Antonio 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
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Cheapest
Best
Last-minute
Cheapest flights from Idaho Falls to San AntonioExplore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
Explore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 11/97:47 pm
IDA
- SAT
2 stops13h 25m
Multiple Airlines
Thu 11/129:51 pm
SAT
- IDA
1 stop16h 39m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am
IDA
- SAT
1 stop6h 40m
Delta
Mon 9/216:01 pm
SAT
- IDA
1 stop5h 21m
Delta
Deal found 7/27![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 7/23. 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 9/196:00 am
IDA
- SAT
2 stops7h 46m
Delta
Wed 9/236:01 pm
SAT
- IDA
1 stop5h 21m
Delta
Deal found 7/23![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/24. 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 9/186:00 am
IDA
- SAT
2 stops7h 49m
Delta
Wed 9/236:45 am
SAT
- IDA
1 stop6h 30m
Delta
Deal found 7/24![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:35 am
IDA
- SAT
1 stop4h 39m
Delta
Mon 8/176:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/27![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:56 pm
IDA
- SAT
1 stop4h 34m
Delta
Sun 10/116:35 am
SAT
- IDA
1 stop6h 47m
Delta
Deal found 7/26![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 7/23. 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 8/77:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Tue 8/116:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/23![Delta logo]()
$409
Best flights from Idaho Falls to San AntonioDiscover carefully curated flight deals from Idaho Falls to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Idaho Falls to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:05 pm
IDA
- SAT
1 stop7h 01m
Delta
Wed 9/236:01 pm
SAT
- IDA
1 stop5h 21m
Delta
Deal found 7/26![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 7/23. 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 9/306:57 pm
IDA
- SAT
1 stop4h 34m
Delta
Tue 10/66:07 pm
SAT
- IDA
1 stop5h 13m
Delta
Deal found 7/23![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am
IDA
- SAT
1 stop6h 40m
Delta
Mon 9/216:01 pm
SAT
- IDA
1 stop5h 21m
Delta
Deal found 7/27![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:11 pm
IDA
- SAT
2 stops9h 56m
Delta
Mon 12/712:45 pm
SAT
- IDA
1 stop6h 31m
Delta
Deal found 7/27![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/24. 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 9/186:57 pm
IDA
- SAT
1 stop4h 34m
Delta
Wed 9/2312:29 pm
SAT
- IDA
1 stop6h 48m
Delta
Deal found 7/24![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:35 am
IDA
- SAT
1 stop4h 39m
Delta
Tue 8/186:50 am
SAT
- IDA
1 stop5h 00m
Delta
Deal found 7/26![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 7/23. 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 8/77:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Tue 8/116:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/23![Delta logo]()
$409
Last-minute flights from Idaho Falls to San AntonioDiscover last-minute flight deals from Idaho Falls to San Antonio. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to San Antonio. Data last updated July 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/25. 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.
Thu 7/3011:25 am
IDA
- SAT
2 stops11h 29m
Delta
Mon 8/36:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/25![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Fri 7/312:30 pm
IDA
- SAT
1 stop5h 24m
United Airlines
Mon 8/31:39 pm
SAT
- IDA
1 stop4h 40m
United Airlines
Deal found 7/26![United Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 7/23. 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 8/77:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Tue 8/116:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/23![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Fri 8/72:30 pm
IDA
- SAT
1 stop5h 24m
United Airlines
Mon 8/105:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/26![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:17 pm
IDA
- SAT
2 stops7h 39m
Delta
Mon 8/106:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/26![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 8/1110:35 am
IDA
- SAT
2 stops8h 23m
United Airlines
Sat 8/155:30 am
SAT
- IDA
1 stop5h 21m
United Airlines
Deal found 7/27![United Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:35 am
IDA
- SAT
1 stop4h 39m
Delta
Mon 8/176:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/27![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:35 am
IDA
- SAT
2 stops11h 21m
Delta
Tue 8/187:42 am
SAT
- IDA
2 stops7h 53m
Delta
Deal found 7/26![Delta logo]()
$479
Find flight deals from Idaho Falls to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to San Antonio (SAT). 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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (Kiwi.com) |
Popular in | March |
Cheapest in | April |
Average price | $413 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to San Antonio 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 July 28, 2026.
Use the filters below to find and compare flights from Idaho Falls to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sat 9/19
1:05 pm-9:06 pm
1 stop7h 01m
San Antonio
Wed 9/23
6:01 pm-10:22 pm
1 stop5h 21m
$339
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Wed 9/30
6:57 pm-12:31 am
1 stop4h 34m
San Antonio
Tue 10/6
6:07 pm-10:20 pm
1 stop5h 13m
$339
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 9/18
6:00 am-1:40 pm
1 stop6h 40m
San Antonio
Mon 9/21
6:01 pm-10:22 pm
1 stop5h 21m
$339
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 12/4
1:11 pm-12:07 am
2 stops9h 56m
San Antonio
Mon 12/7
12:45 pm-6:16 pm
1 stop6h 31m
$344
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 9/18
6:57 pm-12:31 am
1 stop4h 34m
San Antonio
Wed 9/23
12:29 pm-6:17 pm
1 stop6h 48m
$349
Quickest round-trip
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 8/14
11:35 am-5:14 pm
1 stop4h 39m
San Antonio
Tue 8/18
6:50 am-10:50 am
1 stop5h 00m
$374
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 8/7
7:00 pm-12:26 am
1 stop4h 26m
San Antonio
Tue 8/11
6:03 pm-10:32 pm
1 stop5h 29m
$409
Sorted by cheapest first
Compare providers for flights from Idaho Falls to San Antonio
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 Antonio in July.
| 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 Antonio 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 Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-San Antonio 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 Antonio 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 Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Idaho Falls with our price prediction graph.
IDA-SAT
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 San Antonio
Get insights into the airlines that provide service to San Antonio. 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 Antonio. Reviews last updated July 28, 2026.
Read through reviews of airlines operating flights from Idaho Falls to San Antonio, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to San Antonio. 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 Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Idaho Falls and San Antonio flights
Browse other Idaho Falls and San Antonio flight options. Last updated on July 28, 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 July 28, 2026.
Popular flight searches
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Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Top 2 airlines flying from Idaho Falls to San Antonio
Discover the top 2 airlines that operate flights from Idaho Falls to San Antonio. 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$469 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$362 | Average$450 | FlexibilityNo cancel fee | On-time69% |