$329+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAT
Aug 16 — Aug 231
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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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 Antonio
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Best
Last-minute
One-way
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
IDA
- SAT
1 stop6h 40m
Delta
Sun 10/116:35 am
SAT
- IDA
1 stop6h 47m
Delta
Deal found 7/15![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/192:25 pm
IDA
- SAT
2 stops7h 19m
United Airlines
Wed 9/235:30 am
SAT
- IDA
1 stop5h 21m
United Airlines
Deal found 7/14![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:05 pm
IDA
- SAT
2 stops10h 03m
Delta
Sun 10/116:35 am
SAT
- IDA
1 stop6h 47m
Delta
Deal found 7/15![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Tue 8/46:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/15![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 7/16. 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 7/306:00 am
IDA
- SAT
2 stops7h 53m
Delta
Mon 8/36:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/16![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/16. 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 7/302:30 pm
IDA
- SAT
1 stop5h 24m
United Airlines
Mon 8/35:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/16![United Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 7/14. 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 9/237:05 am
SAT
- IDA
2 stops12h 12m
Delta
Deal found 7/14![Delta logo]()
$474
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Mon 8/36:50 am
SAT
- IDA
1 stop5h 00m
Delta
Deal found 7/15![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 7/14. 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 1/82:35 pm
IDA
- SAT
1 stop5h 32m
United Airlines
Sat 1/91:35 pm
SAT
- IDA
1 stop4h 47m
United Airlines
Deal found 7/14![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Tue 8/46:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/15![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:05 pm
IDA
- SAT
2 stops10h 03m
Delta
Sun 10/116:35 am
SAT
- IDA
1 stop6h 47m
Delta
Deal found 7/15![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/35:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/16![United Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/192:25 pm
IDA
- SAT
2 stops7h 19m
United Airlines
Wed 9/235:30 am
SAT
- IDA
2 stops10h 53m
United Airlines
Deal found 7/14![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 7/15. 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 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 9/237:05 am
SAT
- IDA
2 stops12h 12m
Delta
Deal found 7/15![Delta logo]()
$474
This Delta deal was found by Cheapflights users on 7/16. 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.
Sun 12/276:45 pm
IDA
- SAT
1 stop5h 00m
Delta
Sat 1/28:00 am
SAT
- IDA
1 stop5h 27m
Delta
Deal found 7/16![Delta logo]()
$534
Last-minute flights from Idaho Falls to San AntonioDiscover last-minute flight deals from Idaho Falls to San Antonio. Data last updated July 17, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to San Antonio. Data last updated July 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/12. 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 7/167:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Mon 7/206:30 am
SAT
- IDA
1 stop5h 13m
Delta
Deal found 7/12![Delta logo]()
$504
This United Airlines deal was found by Cheapflights users on 7/17. 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 7/185:54 pm
IDA
- SAT
1 stop5h 05m
United Airlines
Mon 7/205:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/17![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 pm
IDA
- SAT
1 stop4h 26m
Delta
Mon 8/36:50 am
SAT
- IDA
1 stop5h 00m
Delta
Deal found 7/15![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:00 am
IDA
- SAT
2 stops7h 53m
Delta
Tue 8/46:03 pm
SAT
- IDA
1 stop5h 29m
Delta
Deal found 7/15![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 7/16. 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 7/302:30 pm
IDA
- SAT
1 stop5h 24m
United Airlines
Mon 8/35:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/16![United Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 7/16. 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 7/3012:53 pm
IDA
- SAT
1 stop10h 17m
American Airlines
Mon 8/35:35 pm
SAT
- IDA
1 stop5h 36m
American Airlines
Deal found 7/16![American Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/35:40 am
SAT
- IDA
1 stop5h 10m
United Airlines
Deal found 7/16![United Airlines logo]()
$491
One-way flights from Idaho Falls to San AntonioSearch for one-way flight options from Idaho Falls to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
Search for one-way flight options from Idaho Falls to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
This Delta deal was found by Cheapflights users on 7/16. 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.
Sun 12/276:45 pm
IDA
- SAT
1 stop5h 00m
Delta
Deal found 7/16![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Thu 7/302:30 pm
IDA
- SAT
1 stop5h 24m
United Airlines
Deal found 7/15![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 7/15. 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 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
Deal found 7/15![Delta logo]()
$423
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Sun 12/277:03 am
IDA
- SAT
2 stops14h 56m
American Airlines
Deal found 7/16![American Airlines logo]()
$703
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:14 pm
IDA
- SAT
3 stops31h 12m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$715
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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (Delta) |
Popular in | March |
Cheapest in | April |
Average price | $394 |
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 17, 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
Quickest round-trip
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Thu 7/30
7:00 pm-12:26 am
1 stop4h 26m
San Antonio
Mon 8/3
6:50 am-10:50 am
1 stop5h 00m
$399
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Thu 7/30
7:00 pm-12:26 am
1 stop4h 26m
San Antonio
Tue 8/4
6:03 pm-10:32 pm
1 stop5h 29m
$399
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 1/8
2:35 pm-9:07 pm
1 stop5h 32m
San Antonio
Sat 1/9
1:35 pm-5:22 pm
1 stop4h 47m
$419
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 10/9
1:05 pm-12:08 am
2 stops10h 03m
San Antonio
Sun 10/11
6:35 am-12:22 pm
1 stop6h 47m
$429
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sat 9/19
6:00 am-2:46 pm
2 stops7h 46m
San Antonio
Wed 9/23
7:05 am-6:17 pm
2 stops12h 12m
$474
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Fri 7/31
2:30 pm-8:54 pm
1 stop5h 24m
San Antonio
Mon 8/3
5:40 am-9:50 am
1 stop5h 10m
$491
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sat 9/19
2:25 pm-10:44 pm
2 stops7h 19m
San Antonio
Wed 9/23
5:30 am-3:23 pm
2 stops10h 53m
$499
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sun 12/27
6:45 pm-12:45 am
1 stop5h 00m
San Antonio
Sat 1/2
8:00 am-12:27 pm
1 stop5h 27m
$534
Cheapest one-way
Quickest one-way
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Sun 12/27
6:45 pm-12:45 am
1 stop5h 00m
$374
Idaho FallsSan Antonio
IDA - SAT
IDASAT
Idaho Falls Fanning Field
Thu 7/30
11:25 am-11:54 pm
2 stops11h 29m
$423
Showing 1-10 of 12 resultsSorted 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.
Cheapflights Insights
Everything you need to know about your flight from Idaho Falls to San Antonio
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 17, 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.
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
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 17, 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 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 17, 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$469 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$362 | Average$455 | FlexibilityNo cancel fee | On-time69% |