IDA - AUS

$149 Find Cheap Flights from Idaho Falls to Austin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Austin departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Austin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Austin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Austin, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Idaho Falls to Austin (IDA-AUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Austin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to Austin

Fri, Oct 24 - Thu, Oct 30
 Logo
10:57 pm - 3:24 pmIDA-AUS
39h 27m2 stops
 Logo
7:02 pm - 4:14 pmAUS-IDA
22h 12m1 stop
Fri, Oct 24 - Thu, Oct 30
 Logo
10:57 pm - 12:57 pmIDA-AUS
13h 00m1 stop
 Logo
7:02 pm - 4:14 pmAUS-IDA
22h 12m1 stop
Tue, Oct 28 - Wed, Oct 29
Alaska Airlines Logo
6:05 am - 3:14 pmIDA-AUS
8h 09m1 stop
Alaska Airlines Logo
7:00 am - 3:13 pmAUS-IDA
9h 13m1 stop
$298Alaska Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
8:30 am - 5:21 pmIDA-AUS
7h 51m2 stops
United Airlines Logo
12:49 pm - 5:46 pmAUS-IDA
5h 57m1 stop
$304United Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
8:30 am - 5:21 pmIDA-AUS
7h 51m2 stops
United Airlines Logo
9:45 am - 5:46 pmAUS-IDA
9h 01m2 stops
$309United Airlines
Find Deal
Fri, Oct 24 - Sun, Oct 26
 Logo
10:57 pm - 12:57 pmIDA-AUS
13h 00m1 stop
 Logo
6:48 pm - 12:49 pmAUS-IDA
19h 01m1 stop
Sat, Nov 8 - Tue, Nov 11
Delta Logo
1:15 pm - 8:56 pmIDA-AUS
6h 41m1 stop
Delta Logo
8:10 am - 12:39 pmAUS-IDA
5h 29m1 stop
$319Delta
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Tue, Nov 4 - Tue, Nov 11
Alaska Airlines Logo
3:50 pm - 12:14 amIDA-AUS
7h 24m1 stop
Alaska Airlines Logo
7:00 am - 3:13 pmAUS-IDA
9h 13m1 stop
$322Alaska Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Delta Logo
6:53 pm - 9:38 amIDA-AUS
13h 45m2 stops
Delta Logo
8:10 am - 12:39 pmAUS-IDA
5h 29m1 stop
$324Delta
Find Deal
Thu, Oct 30 - Sun, Nov 2
American Airlines Logo
12:55 pm - 6:50 pmIDA-AUS
4h 55m1 stop
American Airlines Logo
8:34 am - 1:27 pmAUS-IDA
5h 53m1 stop
$371American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Idaho Falls to Austin flights

Get data-powered insights and trends into flights from Idaho Falls to Austin to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Idaho Falls to Austin?

What’s the cheapest day of the week to fly from Idaho Falls to Austin?

The average price of all round-trip flights from Idaho Falls to Austin clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Austin on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Idaho Falls to Austin. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Idaho Falls to Austin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Austin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Idaho Falls to Austin is February, where tickets cost $302 (return) on average. On the other hand, the most expensive months are October and December, where the average cost of round-trip tickets is $726 and $653 respectively.

Good to know

Low seasonJuly
Cheapest flight$149
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Idaho Falls to Austin

When to book flights from Idaho Falls to Austin

Are your dates flexible? Find out the best times to travel from Idaho Falls to Austin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Austin

  • What is the cheapest flight from Idaho Falls to Austin?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Austin was $149 for a one-way ticket and $285 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Austin?

    No

  • Which aircraft models fly most regularly from Idaho Falls to Austin?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Austin?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Idaho Falls and Austin, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Austin, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Austin are Alaska Airlines and Delta. With an average price for the route of $423 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $425 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Idaho Falls to Austin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Austin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Austin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Idaho Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Austin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Austin with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and AUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Austin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Austin from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Idaho Falls to Austin

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Austin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Austin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
7.1Food
7.0Entertainment
8.5Crew
8.1Boarding
Airline reviews

I booked a round trip. I ordered a lunch going and a lunch for the return but got both lunches going. Could have been my error. Both lunches were good.

10.0 ExcellentAnonymous, Aug 2025PDX - DFW
Read more Alaska Airlines reviews

I booked a round trip. I ordered a lunch going and a lunch for the return but got both lunches going. Could have been my error. Both lunches were good.

We were singled out, greeted and helped with check-in at the busy airport. They offered to take our bags there and gave no fuss when we said they were carry-on. With United just last week I had to put up a fight just to get onto the flight with my one authorized carry-on.

The flight was jumping between being delayed and closer to schedule about 5 times. Alaska air website showed incorrect times while google had latest info. This panic was horrible to deal with.

More leg room would be nice. Especially for older people

Flight was on time. Staff was polite and efficient. The snacks were good - only an hour and a half flight. No entertainment but didn't expect that. We brought our own things to do.

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Ok. It was uneventful and drama free. Plane was clean and the crew polite.

It was alright other than the changes in the Alaska Lounge. That and the migraine I had were disappointing. Other then that everything went well.

Everything smooth (including the landing) and on time. Easy. Thanks.

My flight was canceled and rebooked about 3 times. Original flight had a 50 minute layover. Flight was canceled and rebooked with a five plus hour layover. I demanded refund

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Everything you need to know for your flight from Idaho Falls to Austin

Information on your arrival and departure airports

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