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Cheap flights from Ontario to La Crosse from $439

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to La Crosse departing on 4/24. 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
0 bags

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Find the cheapest flights from Ontario to La Crosse

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:35 pm - 9:35 am
ONT
-
LSE
12h 00m
2 stops
American Airlines Logo
10:05 am - 6:24 pm
LSE
-
ONT
10h 19m
2 stops
$439American Airlines
dv., abr. 24 - dt., abr. 28
American Airlines Logo
6:15 am - 6:07 pm
ONT
-
LSE
9h 52m
3 stops
American Airlines Logo
10:05 am - 4:22 pm
LSE
-
ONT
8h 17m
2 stops
$1,078American Airlines
dv., abr. 24 - dt., abr. 28

American Airlines flights from Ontario to La Crosse

Our best American Airlines deals on Ontario to La Crosse flight tickets
American Airlines
Apr 24
ONT7:35 pmOntario
12h 00m
2 stops
LSE9:35 amLa Crosse
Apr 28
LSE10:05 amLa Crosse
10h 19m
2 stops
ONT6:24 pmOntario
$439
American Airlines
Apr 19
ONT7:35 pmOntario
12h 00m
2 stops
LSE9:35 amLa Crosse
Apr 30
LSE5:40 amLa Crosse
12h 42m
2 stops
ONT4:22 pmOntario
$615
American Airlines
Apr 19
ONT7:35 pmOntario
12h 00m
2 stops
LSE9:35 amLa Crosse
Apr 30
LSE10:05 amLa Crosse
13h 54m
2 stops
ONT9:59 pmOntario
$804

momondo Fare Finder

 
Customize your flight search to find flights from Ontario 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 abril 13, 2026.
Use the filters below to find and compare flights from Ontario to La Crosse that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLa Crosse

ONT - LSE

ONTLSE

Ontario

dv. 4/24

7:35 pm-9:35 am

2 stops12h 00m

La Crosse

dt. 4/28

10:05 am-6:24 pm

2 stops10h 19m

$439
Quickest round-trip

OntarioLa Crosse

ONT - LSE

ONTLSE

Ontario

dv. 4/24

6:15 am-6:07 pm

3 stops9h 52m

La Crosse

dt. 4/28

10:05 am-4:22 pm

2 stops8h 17m

$1,078

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Ontario to La Crosse

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to La Crosse according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to La Crosse (ONT to LSE) flight deals and tips

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

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Ontario to La Crosse takes 9h 35m
There are no direct flights from Ontario to La Crosse. There are no popular flight routes from Ontario to La Crosse.
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Frequently asked questions about flying from Ontario to La Crosse

  • How far is Ontario to La Crosse by plane?

    There are 1560.7 mi between Ontario and La Crosse. In terms of flight time, this usually takes a little over 9h 35m.

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

    Prices for flights from Ontario Airport to La Crosse Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport 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 Ontario Airport to La Crosse Airport.

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

    The necessary travel and health documents for your La Crosse Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Ontario to La Crosse

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

    Confirm your travel details to search for the latest offers for flights from Ontario 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 Ontario to La Crosse with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 Ontario to La Crosse?

Finding the right flight to La Crosse from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to La Crosse quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to La Crosse from Ontario with this policy.

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

momondo helps you find the best flight between Ontario and La Crosse by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Ontario to La Crosse flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
dc. 5/13
dc. 5/20
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