BOI - AUS

$112 Find Cheap Flights from Boise 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 Boise to Austin departing on 8/21. 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 Boise 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 Boise to Austin, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Austin (BOI-AUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise 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 Boise to Austin

Fri, Dec 5 - Sun, Dec 7
 Logo
10:41 pm - 12:46 pmBOI-AUS
13h 05m1 stop
 Logo
9:36 pm - 11:23 amAUS-BOI
14h 47m1 stop
Thu, Oct 9 - Sun, Oct 12
 Logo
2:16 pm - 12:47 pmBOI-AUS
21h 31m1 stop
 Logo
6:38 pm - 8:03 pmAUS-BOI
26h 25m1 stop
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
12:20 pm - 9:00 pmBOI-AUS
7h 40m1 stop
Southwest Logo
6:50 am - 11:35 amAUS-BOI
5h 45m1 stop
$265Southwest
Find Deal
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
8:45 am - 6:05 pmBOI-AUS
8h 20m2 stops
Southwest Logo
6:50 am - 11:35 amAUS-BOI
5h 45m1 stop
$270Southwest
Find Deal
Fri, Sep 19 - Sun, Sep 21
Delta Logo
3:20 pm - 10:43 pmBOI-AUS
6h 23m1 stop
Delta Logo
6:00 am - 2:15 pmAUS-BOI
9h 15m1 stop
$279Delta
Find Deal
Fri, Oct 10 - Mon, Oct 13
American Airlines Logo
5:20 pm - 11:55 pmBOI-AUS
5h 35m1 stop
American Airlines Logo
2:18 pm - 10:24 pmAUS-BOI
9h 06m1 stop
$324American Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
American Airlines Logo
1:35 pm - 9:18 pmBOI-AUS
6h 43m1 stop
American Airlines Logo
5:42 pm - 10:24 pmAUS-BOI
5h 42m1 stop
$339American Airlines
Find Deal
Mon, Sep 22 - Tue, Sep 30
United Airlines Logo
7:09 pm - 8:51 amBOI-AUS
12h 42m2 stops
United Airlines Logo
5:15 am - 1:30 pmAUS-BOI
9h 15m2 stops
$355United Airlines
Find Deal
Thu, Dec 18 - Sat, Dec 27
Delta Logo
2:00 pm - 11:57 pmBOI-AUS
8h 57m1 stop
Delta Logo
7:30 pm - 11:47 pmAUS-BOI
5h 17m1 stop
$367Delta
Find Deal
Fri, Dec 5 - Sun, Dec 7
United Airlines Logo
2:49 pm - 10:59 pmBOI-AUS
7h 10m2 stops
United Airlines Logo
5:30 am - 1:39 pmAUS-BOI
9h 09m2 stops
$368United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boise to Austin flights

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

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

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

If you are looking for a flight deal from Boise to Austin, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Austin, Saturday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Boise to Austin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise 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 Boise to Austin is January, where tickets cost $330 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $482 and $472 respectively.

How far in advance should I book a flight from Boise to Austin?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to Austin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to Austin, you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$112
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Boise to Austin

When to book flights from Boise to Austin

Are your dates flexible? Find out the best times to travel from Boise 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 Boise to Austin

  • What is the cheapest flight from Boise to Austin?

    In the last 3 days, the lowest price for a flight from Boise to Austin was $112 for a one-way ticket and $193 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Boise to Austin?

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

  • Which airline alliances offer flights from Boise to Austin?

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

  • Which is the best airline for flights from Boise to Austin, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Boise to Austin are Southwest and Delta. With an average price for the route of $471 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $358 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boise 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 Boise to Austin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Austin from Boise 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 Boise 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 Boise with another airline. Booking your flights between Boise 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 Boise 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 Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Boise to Austin

 
See real verified KAYAK customer reviews for airlines flying from Boise 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 Boise 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
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Airline reviews

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.

2.0 MediocreAmit, Aug 2025SAN - AUS
Read more Alaska Airlines reviews

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

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.

I am mobility challenged and ground crew were accommodating to my needs. One must walk up a ramp to board Alaska planes. Terminal to tarmac to ramp to plane.

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.

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

Not good. Didn’t get to our final destination. No reimburseme t for lost time

It was a very smooth fast flight, crew was prompt and comforting. Alaska airlines are the best.

It was a really smooth flight. I hate heights. All made it feel smooth. Thankyou

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

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.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

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.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

Pretty bad gate mgmt upon arrival. No open gates and we had to wait at midnight. Shouldn’t be a surprise that an aircraft is coming in.

Comfortable plane ride however on delays disappointment no real details as to why the delays when other flights are leaving the airport

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Everything you need to know for your flight from Boise to Austin

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.