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Cheap flights from Idaho to La Crosse from $509

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to La Crosse departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Idaho to La Crosse

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:19 pm - 12:22 am
BOI
-
LSE
8h 03m
1 stop
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$509American Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
1:52 pm - 12:20 am
BOI
-
LSE
9h 28m
2 stops
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$514American Airlines
Sat, Sep 12 - Tue, Sep 15
American Airlines Logo
3:21 pm - 12:20 am
BOI
-
LSE
7h 59m
1 stop
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$534American Airlines
Thu, Sep 10 - Sat, Sep 12
American Airlines Logo
1:52 pm - 12:20 am
BOI
-
LSE
9h 28m
2 stops
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$539American Airlines
Thu, Sep 10 - Sat, Sep 12
American Airlines Logo
1:55 pm - 12:22 am
BOI
-
LSE
9h 27m
2 stops
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$565American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
3:21 pm - 12:20 am
BOI
-
LSE
7h 59m
1 stop
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$580American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
1:52 pm - 12:20 am
BOI
-
LSE
9h 28m
2 stops
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$585American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
3:21 pm - 12:20 am
BOI
-
LSE
7h 59m
1 stop
American Airlines Logo
12:26 pm - 10:03 pm
LSE
-
BOI
10h 37m
2 stops
$599American Airlines
Fri, Sep 11 - Sat, Sep 12
American Airlines Logo
3:19 pm - 12:22 am
BOI
-
LSE
8h 03m
1 stop
American Airlines Logo
5:22 pm - 11:41 pm
LSE
-
BOI
31h 19m
2 stops
$629American Airlines
Tue, Sep 8 - Wed, Sep 16
American Airlines Logo
1:52 pm - 12:20 am
BOI
-
LSE
9h 28m
2 stops
American Airlines Logo
5:22 pm - 10:03 pm
LSE
-
BOI
29h 41m
2 stops
$634American Airlines
Sat, Sep 12 - Wed, Sep 16

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American Airlines flights from Idaho to La Crosse

Our best American Airlines deals on Idaho to La Crosse flight tickets
American Airlines
Sep 8
BOI3:19 pmBoise Air Term. Gowen Fld
8h 03m
1 stop
LSE12:22 amLa Crosse
Sep 12
LSE12:26 pmLa Crosse
10h 37m
2 stops
BOI10:03 pmBoise Air Term. Gowen Fld
$509
American Airlines
Sep 12
BOI1:52 pmBoise Air Term. Gowen Fld
9h 28m
2 stops
LSE12:20 amLa Crosse
Sep 15
LSE12:26 pmLa Crosse
10h 37m
2 stops
BOI10:03 pmBoise Air Term. Gowen Fld
$514
American Airlines
Sep 10
BOI3:21 pmBoise Air Term. Gowen Fld
7h 59m
1 stop
LSE12:20 amLa Crosse
Sep 12
LSE12:26 pmLa Crosse
10h 37m
2 stops
BOI10:03 pmBoise Air Term. Gowen Fld
$534

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to La Crosse 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, momondo users made 832,500 searches. Data last updated July 7, 2026.
Use the filters below to find and compare flights from Idaho to La Crosse that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Tue 9/8

3:19 pm-12:22 am

1 stop8h 03m

La Crosse

Sat 9/12

12:26 pm-10:03 pm

2 stops10h 37m

$509

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Sat 9/12

1:52 pm-12:20 am

2 stops9h 28m

La Crosse

Tue 9/15

12:26 pm-10:03 pm

2 stops10h 37m

$514
Quickest round-trip

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Thu 9/10

3:21 pm-12:20 am

1 stop7h 59m

La Crosse

Sat 9/12

12:26 pm-10:03 pm

2 stops10h 37m

$534

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Thu 9/10

1:52 pm-12:20 am

2 stops9h 28m

La Crosse

Sat 9/12

12:26 pm-10:03 pm

2 stops10h 37m

$539

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Tue 9/8

1:55 pm-12:22 am

2 stops9h 27m

La Crosse

Tue 9/15

12:26 pm-10:03 pm

2 stops10h 37m

$565

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Wed 9/9

3:21 pm-12:20 am

1 stop7h 59m

La Crosse

Tue 9/15

12:26 pm-10:03 pm

2 stops10h 37m

$580

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Wed 9/9

1:52 pm-12:20 am

2 stops9h 28m

La Crosse

Tue 9/15

12:26 pm-10:03 pm

2 stops10h 37m

$585

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Fri 9/11

3:21 pm-12:20 am

1 stop7h 59m

La Crosse

Sat 9/12

12:26 pm-10:03 pm

2 stops10h 37m

$599

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Tue 9/8

3:19 pm-12:22 am

1 stop8h 03m

La Crosse

Wed 9/16

5:22 pm-11:41 pm

2 stops31h 19m

$629

BoiseLa Crosse

BOI - LSE

BOILSE

Boise Air Term. Gowen Fld

Sat 9/12

1:52 pm-12:20 am

2 stops9h 28m

La Crosse

Wed 9/16

5:22 pm-10:03 pm

2 stops29h 41m

$634

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Idaho to La Crosse flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to La Crosse

Fastest flight time

7h 59m

Direct flights

None
The fastest flight from Idaho to La Crosse takes 7h 59m
There are no direct flights from Idaho to La Crosse. There are no popular flight routes from Idaho to La Crosse.
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Frequently asked questions about flying from Idaho to La Crosse

  • When did momondo last update prices for flights from Idaho to La Crosse Airport?

    Prices for flights from Idaho to La Crosse Airport refresh daily.

  • How old do you have to be to fly from Idaho to La Crosse Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to La Crosse Airport.

  • What documentation or ID do you need to fly to La Crosse Airport?

    The required travel and health documents for your La Crosse Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at La Crosse Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Idaho to La Crosse

  • How do I get Price Alerts for flights from Idaho to La Crosse?

    Confirm your travel details to search for the latest offers for flights from Idaho to La Crosse. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Idaho to La Crosse with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near La Crosse?

Book flights to La Crosse if you plan to visit one of these locations
Onalaska
Winona
Decorah
Harpers Ferry
Lansing

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to La Crosse?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to La Crosse for you.

Can I find flights from Idaho to La Crosse with flexible booking policies on momondo?

All flight searches from Idaho to La Crosse on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho to La Crosse?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to La Crosse from Idaho.

I’m not ready to book a flight from Idaho to La Crosse right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to La Crosse from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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