$177+ Cheap flights from Austin to Idaho Falls (AUS - 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IDA
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Austin 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
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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 Austin to Idaho Falls
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Cheapest flights from Austin to Idaho FallsExplore the most affordable flight options available from Austin to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Austin to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 12/312:42 pm -
1 stop25h 09m
Mon 12/147:58 pm -
1 stop14h 47m
Deal found 9/5![Multiple Airlines logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/296:15 pm -
1 stop20h 19m
Mon 11/167:47 pm -
1 stop15h 35m
Deal found 9/4![Multiple Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 9/2. 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 10/236:06 pm -
1 stop5h 04m
Mon 10/266:00 am -
1 stop4h 36m
Deal found 9/2![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/267:00 am -
1 stop5h 45m
Wed 9/302:08 pm -
1 stop6h 28m
Deal found 9/6![American Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/2410:59 pm -
1 stop13h 47m
Mon 11/303:32 pm -
1 stop19h 13m
Deal found 9/4![Multiple Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/265:10 am -
2 stops9h 14m
Wed 9/302:28 pm -
1 stop5h 20m
Deal found 9/6![United Airlines logo]()
$399
Best flights from Austin to Idaho FallsDiscover carefully curated flight deals from Austin to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Austin to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/2. 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 10/236:06 pm -
1 stop5h 04m
Mon 10/266:00 am -
1 stop4h 36m
Deal found 9/2![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 1/63:00 pm -
1 stop7h 52m
Sat 1/97:00 am -
1 stop6h 59m
Deal found 9/2![American Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 1/96:00 am -
2 stops17h 53m
Wed 1/131:56 pm -
1 stop9h 02m
Deal found 9/3![Alaska Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/285:15 am -
2 stops11h 23m
Sat 10/312:35 pm -
2 stops7h 40m
Deal found 9/3![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 9/3. 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 10/282:00 pm -
2 stops9h 10m
Sat 10/311:05 pm -
1 stop7h 37m
Deal found 9/3![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 9/194:24 pm -
1 stop7h 32m
Wed 9/233:57 pm -
1 stop7h 02m
Deal found 9/3![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/165:30 am -
1 stop5h 23m
Mon 10/195:51 pm -
1 stop5h 08m
Deal found 9/5![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 2/181:36 pm -
1 stop10h 03m
Mon 2/224:03 pm -
1 stop7h 06m
Deal found 9/4![Alaska Airlines logo]()
$474
Last-minute flights from Austin to Idaho FallsDiscover last-minute flight deals from Austin to Idaho Falls. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho Falls. Data last updated September 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:30 am -
1 stop5h 23m
Wed 9/235:53 pm -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/267:00 am -
1 stop5h 45m
Wed 9/302:08 pm -
1 stop6h 28m
Deal found 9/6![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/265:10 am -
2 stops9h 14m
Wed 9/302:28 pm -
1 stop5h 20m
Deal found 9/6![United Airlines logo]()
$399
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:07 pm -
1 stop21h 13m
Tue 10/133:57 pm -
1 stop7h 02m
Deal found 9/2![Alaska Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 9/2. 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 10/236:06 pm -
1 stop5h 04m
Mon 10/266:00 am -
1 stop4h 36m
Deal found 9/2![Delta logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/296:15 pm -
1 stop20h 19m
Mon 11/167:47 pm -
1 stop15h 35m
Deal found 9/4![Multiple Airlines logo]()
$284
One-way flights from Austin to Idaho FallsSearch for one-way flight options from Austin to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Austin to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/45:30 am -
1 stop5h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 10/55:30 am -
1 stop5h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 9/226:00 am -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$205
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2212:12 pm -
2 stops10h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$210
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 9/2. 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 10/92:18 pm -
1 stop4h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$250
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:30 pm -
2 stops9h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 9/5. 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.
Mon 10/57:15 am -
2 stops12h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/412:12 pm -
3 stops31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/85:30 am -
1 stop5h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$295
Find flight deals from Austin to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $248 (Kiwi.com) |
One-way from | $177 (United Airlines) |
Popular in | February |
Cheapest in | March |
Average price | $432 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 September 7, 2026.
Use the filters below to find and compare flights from Austin to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Sun 10/4
5:30 am-9:53 am
1 stop5h 23m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$177
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Mon 10/5
5:30 am-9:53 am
1 stop5h 23m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$187
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Tue 9/22
12:12 pm-9:18 pm
2 stops10h 06m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$210
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Tue 9/15
7:00 am-11:45 am
1 stop5h 45m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$240
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Tue 9/15
1:30 pm-10:22 pm
2 stops9h 52m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$255
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Tue 9/15
7:00 am-3:23 pm
2 stops9h 23m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$255
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Mon 10/5
7:15 am-6:17 pm
2 stops12h 02m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$265
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Thu 10/8
5:30 am-9:53 am
1 stop5h 23m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$295
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Fri 10/23
6:06 pm-10:10 pm
1 stop5h 04m
Idaho Falls Fanning Field
Mon 10/26
6:00 am-11:36 am
1 stop4h 36m
$339
AustinIdaho Falls
AUS Austin Bergstrom - IDA Idaho Falls Fanning Field
AUSIDA
Austin Bergstrom
Wed 1/6
3:00 pm-9:52 pm
1 stop7h 52m
Idaho Falls Fanning Field
Sat 1/9
7:00 am-2:59 pm
1 stop6h 59m
$339
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Austin 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 Austin to Idaho Falls in September.
| 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 Austin-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-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 Austin-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 Austin to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Austin with our price prediction graph.
AUS-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 Austin 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 September 7, 2026.
Get a feel of what it's like to fly with Alaska Airlines and United Airlines from Austin to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
2.0
MediocreStephen,Jun 2024
AUS - SAN
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
2.0
MediocreStephen,Jun 2024
AUS - SAN
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Crew
8.5
Reviews
1 / 20
2.0
MediocreStephen,Jun 2024
AUS - SAN
Related info for your journey
Find useful and relevant information for your journey from Austin 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 September 7, 2026.
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Browse other Austin and Idaho Falls flight options. Last updated on September 7, 2026.
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Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Austin to Idaho Falls
Discover the top 2 airlines that operate flights from Austin 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$237 | Average$378 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$298 | Average$479 | FlexibilityNo cancel fee | On-time69% |