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$99+ Cheap flights from Idaho to Austin (AUS)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Idaho to Austin

Keep the following information in mind while searching for Idaho to Austin flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$285
(Delta)

One-way from

$99
(Frontier)

Popular in

November

Cheapest in

August

Average price

$365
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Austin Bergstrom flights.
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From Idaho to Austin Bergstrom
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One-way flight from Idaho to Austin Bergstrom
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Highest demand for flights based on searches. 11% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Idaho to Austin

Cheapest flights from Idaho to Austin
Explore the most affordable flight options available from Idaho to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 7/165:45 amGEG - AUS
1 stop5h 19mDelta
Wed 8/68:15 amAUS - GEG
1 stop5h 41mDelta
Deal found 4/30$285
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 6/133:35 pmBOI - AUS
1 stop5h 52mAmerican Airlines
Sun 6/155:00 amAUS - BOI
1 stop6h 56mAmerican Airlines
Deal found 4/30$287
This Trip.com deal was found by Cheapflights users on 5/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2411:48 amGEG - AUS
1 stop9h 36mFrontier
Sun 6/296:00 amAUS - GEG
1 stop7h 03mFrontier
Deal found 5/1$305
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 6/25:34 pmBOI - AUS
2 stops19h 32mAlaska Airlines
Wed 6/49:30 amAUS - BOI
1 stop8h 41mAlaska Airlines
Deal found 4/29$307
This Southwest deal was found by Cheapflights users on 4/30. 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 7/166:50 amGEG - AUS
2 stops7h 45mSouthwest
Wed 8/136:20 amAUS - GEG
1 stop5h 25mSouthwest
Deal found 4/30$312
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/912:16 pmBOI - AUS
1 stop6h 00mMultiple Airlines
Tue 5/207:00 amAUS - BOI
1 stop7h 37mMultiple Airlines
Deal found 4/30$313
This Southwest deal was found by Cheapflights users on 4/29. 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 7/175:25 pmBOI - AUS
1 stop4h 55mSouthwest
Mon 7/217:35 pmAUS - BOI
1 stop6h 30mSouthwest
Deal found 4/29$327
This United Airlines deal was found by Cheapflights users on 4/29. 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 9/2510:45 amBOI - AUS
1 stop5h 08mUnited Airlines
Sun 9/284:40 pmAUS - BOI
2 stops8h 04mUnited Airlines
Deal found 4/29$332
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/283:10 pmGEG - AUS
1 stop6h 30mAmerican Airlines
Mon 6/305:25 pmAUS - GEG
1 stop7h 55mAmerican Airlines
Deal found 4/29$332
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/285:15 amGEG - AUS
1 stop5h 52mUnited Airlines
Mon 6/303:30 pmAUS - GEG
2 stops9h 38mUnited Airlines
Deal found 4/29$352
This Delta deal was found by Cheapflights users on 4/29. 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 11/2011:30 amJAC - AUS
1 stop4h 58mDelta
Tue 12/28:15 amAUS - JAC
1 stop6h 48mDelta
Deal found 4/29$375
This Delta deal was found by Cheapflights users on 4/29. 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 5/216:50 pmIDA - AUS
1 stop4h 41mDelta
Sun 5/257:37 amAUS - IDA
2 stops11h 33mDelta
Deal found 4/29$380

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho to Austin 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 May 1, 2025.
Use the filters below to find and compare flights from Idaho to Austin that are best for you.

Fly from

Idaho

Fly to

Austin

Route

Depart

Return

Price

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 7/16

5:45 am-1:04 pm

1 stop5h 19m

Austin Bergstrom

Wed 8/6

8:15 am-11:56 am

1 stop5h 41m

$285

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 6/13

7:00 am-2:53 pm

1 stop6h 53m

Austin Bergstrom

Sun 6/15

6:05 am-10:56 am

1 stop5h 51m

$287

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 6/24

11:48 am-11:24 pm

1 stop9h 36m

Austin Bergstrom

Sun 6/29

6:00 am-11:03 am

1 stop7h 03m

$305

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 6/2

5:34 pm-2:06 pm

2 stops19h 32m

Austin Bergstrom

Wed 6/4

9:30 am-5:11 pm

1 stop8h 41m

$307

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 7/16

6:50 am-4:35 pm

2 stops7h 45m

Austin Bergstrom

Wed 8/13

6:20 am-9:45 am

1 stop5h 25m

$312

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 5/9

12:16 pm-7:16 pm

1 stop6h 00m

Austin Bergstrom

Tue 5/20

7:00 am-1:37 pm

1 stop7h 37m

$313

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 7/17

5:25 pm-11:20 pm

1 stop4h 55m

Austin Bergstrom

Mon 7/21

7:35 pm-1:05 am

1 stop6h 30m

$327

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 6/28

3:10 pm-11:40 pm

1 stop6h 30m

Austin Bergstrom

Mon 6/30

5:25 pm-11:20 pm

1 stop7h 55m

$332

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 7/3

2:32 pm-10:59 pm

2 stops7h 27m

Austin Bergstrom

Mon 7/7

6:00 pm-10:27 pm

1 stop5h 27m

$352

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 6/28

5:15 am-1:07 pm

1 stop5h 52m

Austin Bergstrom

Mon 6/30

3:30 pm-11:08 pm

2 stops9h 38m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 37 results
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Best time to book a flight from Idaho to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Idaho 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 Idaho to Austin

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $286). Flying from Idaho to Austin in March is currently the most expensive (average of $362). 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 ID to AUS?

Find hourly flight availability from Idaho to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

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

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated May 1, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Idaho to Austin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Austin. 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 into for flights to Austin from Idaho?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly into when you book flights from Idaho to Austin.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Idaho to Austin for a low price.

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

    The most popular route from Idaho to Austin is Boise Air Term. Gowen Fld - Austin Bergstrom. You may also consider Spokane - Austin Bergstrom or Idaho Falls Fanning Field - Austin Bergstrom.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Austin 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 Idaho to Austin?

    Currently, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $286). Flying from Idaho to Austin in March is currently the most expensive (average of $362). 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.

See more FAQs

Traveling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Round Rock
Dripping Springs
Cedar Park
Pflugerville
Bastrop
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Idaho to Austin

Discover the top 6 airlines that operate flights from Idaho to Austin. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$219FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$440FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$531FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$245Average$442FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$249Average$404FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$309Average$471FlexibilityNo cancel feeOn-time63%

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