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$492+ Cheap flights from La Crosse (LSE) to Idaho

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
LSE — BOI
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from La Crosse to Idaho

Cheapest flights from La Crosse to Idaho
Explore the most affordable flight options available from La Crosse to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This American Airlines deal was found by Cheapflights users on 2/4. 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 2/206:29 pm
LSE
-
IDA
2 stops20h 19m
American Airlines
Tue 2/242:18 pm
IDA
-
LSE
2 stops19h 43m
American Airlines
Deal found 2/4$492
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:15 am
LSE
-
GEG
2 stops32h 25m
United Airlines
Sat 10/317:02 am
GEG
-
LSE
2 stops24h 54m
United Airlines
Deal found 2/1$682
This American Airlines deal was found by Cheapflights users on 2/5. 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 8/15:25 pm
LSE
-
IDA
1 stop20h 48m
American Airlines
Wed 8/512:46 pm
IDA
-
LSE
1 stop9h 32m
American Airlines
Deal found 2/5$716
This United Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 10/209:42 am
LSE
-
IDA
2 stops14h 11m
United Airlines
Sat 10/245:57 pm
IDA
-
LSE
2 stops29h 18m
United Airlines
Deal found 2/4$786
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Mon 5/258:15 pm
LSE
-
IDA
2 stops18h 09m
United Airlines
Sat 5/306:03 pm
IDA
-
LSE
2 stops23h 07m
United Airlines
Deal found 2/3$790
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 2/245:20 am
LSE
-
GEG
1 stop8h 24m
American Airlines
Fri 2/2712:25 pm
GEG
-
LSE
1 stop20h 30m
American Airlines
Deal found 2/3$851
This United Airlines deal was found by Cheapflights users on 2/5. 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 8/19:42 am
LSE
-
IDA
2 stops8h 40m
United Airlines
Wed 8/510:40 am
IDA
-
LSE
3 stops12h 35m
United Airlines
Deal found 2/5$1,241

Find flight deals from La Crosse to Idaho

Keep the following information in mind while searching for La Crosse to Idaho flight deals. Data was last updated February 6, 2026.

Round-trip from

$492
(American Airlines)
From La Crosse to Idaho
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from La Crosse 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 February 6, 2026.
Use the filters below to find and compare flights from La Crosse to Idaho that are best for you.

Fly from

La Crosse

Fly to

Idaho

Route

Depart

Return

Price

La CrosseIdaho Falls

LSE - IDA

LSEIDA

La Crosse

Fri 2/20

6:29 pm-1:48 pm

2 stops20h 19m

Idaho Falls Fanning Field

Tue 2/24

2:18 pm-11:01 am

2 stops19h 43m

$492

La CrosseIdaho Falls

LSE - IDA

LSEIDA

La Crosse

Sat 8/1

5:25 pm-1:13 pm

1 stop20h 48m

Idaho Falls Fanning Field

Wed 8/5

12:46 pm-11:18 pm

1 stop9h 32m

$716

La CrosseIdaho Falls

LSE - IDA

LSEIDA

La Crosse

Mon 5/25

8:15 pm-1:24 pm

2 stops18h 09m

Idaho Falls Fanning Field

Sat 5/30

6:03 pm-6:10 pm

2 stops23h 07m

$790

La CrosseSpokane

LSE - GEG

LSEGEG

La Crosse

Tue 2/24

5:20 am-11:44 am

1 stop8h 24m

Spokane

Fri 2/27

12:25 pm-10:55 am

1 stop20h 30m

$851

La CrosseIdaho Falls

LSE - IDA

LSEIDA

La Crosse

Sat 8/1

9:42 am-9:55 am

2 stops25h 13m

Idaho Falls Fanning Field

Wed 8/5

2:31 pm-6:10 pm

2 stops26h 39m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Best time to book a flight from La Crosse to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from La Crosse 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 La Crosse to Idaho
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from La Crosse 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 La Crosse to Idaho?

    If you book a flight to Idaho from La Crosse, you will be flying from La Crosse, which is the city’s only airport. La Crosse (LSE) is located 5.4 mi from the center of La Crosse.

  • How long is the flight from La Crosse to Idaho?

    American Airlines and United Airlines can get you from La Crosse to Idaho in just under 18h 09m. Your travel time can differ by up to 2h 10m. Airlines will cover a distance of 1036 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from La Crosse to Idaho?

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

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

    Yes. Cheapflights offers flight deals from La Crosse 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.

See more FAQs

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