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Idaho

$87+ Cheap flights from Austin (AUS) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Austin to Idaho

Keep the following information in mind while searching for Austin to Idaho flight deals. Data was last updated September 11, 2025.

Round-trip from

$165
(KAYAK)

One-way from

$89
(Delta)

Popular in

December

Cheapest in

January

Average price

$340
From Austin Bergstrom to Idaho
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One-way flight from Austin Bergstrom to Idaho
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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Austin to Idaho

Cheapest flights from Austin to Idaho
Explore the most affordable flight options available from Austin to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 9/3012:00 pmAUS - GEG
1 stop8h 45mDelta
Tue 10/142:38 pmGEG - AUS
1 stop7h 18mDelta
Deal found 9/10$177
This Delta deal was found by Cheapflights users on 9/9. 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 9/306:20 amAUS - BOI
1 stop8h 03mDelta
Wed 10/15:43 pmBOI - AUS
1 stop5h 41mDelta
Deal found 9/9$181
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 pmAUS - BOI
1 stop5h 40mSouthwest
Sat 11/155:00 amBOI - AUS
1 stop5h 10mSouthwest
Deal found 9/10$186
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:25 amAUS - BOI
2 stops8h 45mSouthwest
Wed 10/112:20 pmBOI - AUS
1 stop7h 40mSouthwest
Deal found 9/9$189
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:15 amAUS - BOI
1 stop10h 35mSouthwest
Sat 12/62:25 pmBOI - AUS
1 stop4h 50mSouthwest
Deal found 9/11$192
This Delta deal was found by Cheapflights users on 9/11. 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 10/157:20 amAUS - BOI
1 stop8h 45mDelta
Mon 10/205:25 amBOI - AUS
1 stop7h 09mDelta
Deal found 9/11$194
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:40 pmAUS - BOI
1 stop6h 55mSouthwest
Wed 11/192:40 pmBOI - AUS
1 stop6h 15mSouthwest
Deal found 9/8$199
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:20 pmAUS - BOI
1 stop7h 55mSouthwest
Wed 11/1912:55 pmBOI - AUS
2 stops7h 50mSouthwest
Deal found 9/11$202
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:50 amAUS - BOI
1 stop6h 05mSouthwest
Tue 11/112:40 pmBOI - AUS
1 stop6h 15mSouthwest
Deal found 9/9$203
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/131:36 pmAUS - BOI
1 stop9h 44mHawaiian Airlines
Mon 11/1710:05 amBOI - AUS
1 stop7h 13mHawaiian Airlines
Deal found 9/10$206
This Delta deal was found by Cheapflights users on 9/11. 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 10/166:04 pmAUS - BOI
1 stop7h 04mDelta
Sun 10/195:25 amBOI - AUS
1 stop7h 09mDelta
Deal found 9/11$207
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 12/51:33 pmAUS - GEG
1 stop9h 55mAlaska Airlines
Mon 12/87:25 pmGEG - AUS
1 stop19h 20mAlaska Airlines
Deal found 9/10$231

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Idaho 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 September 11, 2025.
Use the filters below to find and compare flights from Austin to Idaho that are best for you.

Fly from

Austin

Fly to

Idaho

Route

Depart

Return

Price

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Tue 9/30

12:00 pm-6:45 pm

1 stop8h 45m

Spokane

Tue 10/14

2:38 pm-11:56 pm

1 stop7h 18m

$177

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 10/8

6:04 pm-12:08 am

1 stop7h 04m

Boise Air Term. Gowen Fld

Wed 10/15

3:00 pm-10:55 pm

1 stop6h 55m

$181

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Tue 9/30

6:20 am-1:23 pm

1 stop8h 03m

Boise Air Term. Gowen Fld

Wed 10/1

5:43 pm-12:24 am

1 stop5h 41m

$181

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Sat 11/15

2:20 pm-9:15 pm

1 stop7h 55m

Boise Air Term. Gowen Fld

Wed 11/19

12:55 pm-9:40 pm

1 stop7h 45m

$186

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 11/12

6:30 pm-11:10 pm

1 stop5h 40m

Boise Air Term. Gowen Fld

Sat 11/15

5:00 am-11:10 am

1 stop5h 10m

$186

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 12/10

7:05 am-12:20 pm

1 stop6h 15m

Boise Air Term. Gowen Fld

Sat 12/13

2:25 pm-8:15 pm

1 stop4h 50m

$186

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 10/15

7:20 am-3:05 pm

1 stop8h 45m

Boise Air Term. Gowen Fld

Mon 10/20

5:25 am-1:34 pm

1 stop7h 09m

$194

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Sun 11/16

5:00 am-10:18 am

1 stop6h 18m

Boise Air Term. Gowen Fld

Wed 11/19

3:54 pm-11:59 pm

1 stop7h 05m

$194

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 12/3

7:23 pm-12:43 am

1 stop6h 20m

Boise Air Term. Gowen Fld

Sun 12/7

5:17 am-1:32 pm

1 stop7h 15m

$194

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 12/3

8:15 am-5:50 pm

1 stop10h 35m

Boise Air Term. Gowen Fld

Sat 12/6

6:00 am-5:05 pm

2 stops10h 05m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Austin to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Austin with our price prediction graph.
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

What is the cheapest month to book a flight from Austin to Idaho?

Currently, October is the cheapest month in which you can book a flight from Austin to Idaho (average of $314). Flying from Austin to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to ID?

Find hourly flight availability from Austin to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Austin to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Austin to Idaho, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Austin to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Austin to Idaho?

    Located just 7.5 mi from the city center, Austin Bergstrom (AUS) is the airport most travelers will use when flying to Idaho from Austin.

  • How long is the flight from Austin to Idaho?

    For as low as $231, Delta can have you in Idaho from Austin in 7h 24m. The distance from Austin to Idaho is about 1599 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Austin to Idaho one-way?

    The cheapest airlines for a one-way flight from Austin to Idaho are Southwest ($87), Delta ($89), and Frontier ($103).

  • What are the most popular routes from Austin to Idaho?

    The most popular flight routes from Austin to Idaho are Austin Bergstrom - Boise Air Term. Gowen Fld, Austin Bergstrom - Jackson Hole and Austin Bergstrom - Spokane.

  • Can I find deals for flights from Austin to Idaho that include hotel bookings?

    Yes. In addition to deals on Austin to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Idaho.

  • Can I find deals for business class flights from Austin to Idaho?

    Yes. Cheapflights offers flight deals from Austin to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Austin to Idaho (average of $314). Flying from Austin to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Austin to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Austin to Idaho

Discover the top 5 airlines that operate flights from Austin to Idaho. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$212Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$350FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$573FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$261Average$412FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$498FlexibilityNo cancel feeOn-time69%

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