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Cheap flights from La Crosse to London from $739

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from La Crosse to London departing on 4/1. 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 La Crosse to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:29 pm - 11:15 am
LSE
-
LHR
10h 46m
1 stop
Multiple Airlines Logo
7:30 pm - 11:54 pm
LHR
-
LSE
34h 24m
2 stops
$739Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
British Airways Logo
11:34 am - 9:05 am
LSE
-
LHR
15h 31m
1 stop
British Airways Logo
2:45 pm - 11:54 pm
LHR
-
LSE
15h 09m
1 stop
$742British Airways
Wed, Apr 1 - Wed, Apr 8
British Airways Logo
6:37 pm - 6:55 pm
LSE
-
LHR
18h 18m
2 stops
British Airways Logo
6:15 am - 11:54 pm
LHR
-
LSE
23h 39m
2 stops
$750British Airways
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
6:29 pm - 4:20 pm
LSE
-
LHR
15h 51m
2 stops
Multiple Airlines Logo
7:30 pm - 11:54 pm
LHR
-
LSE
34h 24m
2 stops
$751Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
9:42 am - 6:30 am
LSE
-
LHR
38h 48m
2 stops
United Airlines Logo
7:25 am - 1:05 pm
LHR
-
LSE
35h 40m
2 stops
$757United Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
6:29 pm - 12:15 pm
LSE
-
LHR
11h 46m
1 stop
Multiple Airlines Logo
7:30 pm - 11:54 pm
LHR
-
LSE
34h 24m
2 stops
$760Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
British Airways Logo
11:34 am - 7:40 am
LSE
-
LHR
14h 06m
1 stop
British Airways Logo
12:15 pm - 6:07 pm
LHR
-
LSE
11h 52m
1 stop
$762British Airways
Wed, Apr 1 - Wed, Apr 8
British Airways Logo
10:05 am - 10:40 pm
LSE
-
LHR
30h 35m
2 stops
British Airways Logo
6:15 am - 11:54 pm
LHR
-
LSE
23h 39m
2 stops
$768British Airways
Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
11:34 am - 6:15 pm
LSE
-
LHR
24h 41m
2 stops
Multiple Airlines Logo
7:30 pm - 11:54 pm
LHR
-
LSE
34h 24m
2 stops
$769Multiple Airlines
Mon, Mar 30 - Wed, Apr 8
Multiple Airlines Logo
11:34 am - 2:30 pm
LSE
-
LHR
20h 56m
2 stops
Multiple Airlines Logo
7:30 pm - 11:54 pm
LHR
-
LSE
34h 24m
2 stops
$772Multiple Airlines
Wed, Apr 1 - Wed, Apr 8

United Airlines flights from La Crosse to London Heathrow Airport

Our best United Airlines deals on La Crosse to London Heathrow Airport flight tickets
United Airlines
Aug 29
LSE9:42 amLa Crosse
38h 48m
2 stops
LHR6:30 amLondon Heathrow
Sep 5
LHR7:25 amLondon Heathrow
35h 40m
2 stops
LSE1:05 pmLa Crosse
$757
United Airlines
Aug 29
LSE1:41 pmLa Crosse
12h 49m
1 stop
LHR8:30 amLondon Heathrow
Sep 5
LHR6:55 amLondon Heathrow
17h 15m
2 stops
LSE6:10 pmLa Crosse
$814

British Airways flights from La Crosse to London Heathrow Airport

Our best British Airways deals on La Crosse to London Heathrow Airport flight tickets
British Airways
Apr 1
LSE11:34 amLa Crosse
15h 31m
1 stop
LHR9:05 amLondon Heathrow
Apr 8
LHR2:45 pmLondon Heathrow
15h 09m
1 stop
LSE11:54 pmLa Crosse
$742
British Airways
Apr 14
LSE6:37 pmLa Crosse
18h 18m
2 stops
LHR6:55 pmLondon Heathrow
Apr 21
LHR6:15 amLondon Heathrow
23h 39m
2 stops
LSE11:54 pmLa Crosse
$750
British Airways
Apr 1
LSE11:34 amLa Crosse
14h 06m
1 stop
LHR7:40 amLondon Heathrow
Apr 8
LHR12:15 pmLondon Heathrow
11h 52m
1 stop
LSE6:07 pmLa Crosse
$762

momondo Fare Finder

 
Customize your flight search to find flights from La Crosse to London Heathrow Airport 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 March 2, 2026.
Use the filters below to find and compare flights from La Crosse to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

6:29 pm-11:15 am

1 stop10h 46m

London Heathrow

Wed 4/8

7:30 pm-11:54 pm

2 stops34h 24m

$739

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

11:34 am-9:05 am

1 stop15h 31m

London Heathrow

Wed 4/8

2:45 pm-11:54 pm

1 stop15h 09m

$742

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Tue 4/14

6:37 pm-6:55 pm

2 stops18h 18m

London Heathrow

Tue 4/21

6:15 am-11:54 pm

2 stops23h 39m

$750

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

6:29 pm-4:20 pm

2 stops15h 51m

London Heathrow

Wed 4/8

7:30 pm-11:54 pm

2 stops34h 24m

$751

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Sat 8/29

9:42 am-6:30 am

2 stops38h 48m

London Heathrow

Sat 9/5

7:25 am-1:05 pm

2 stops35h 40m

$757

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

6:29 pm-12:15 pm

1 stop11h 46m

London Heathrow

Wed 4/8

7:30 pm-11:54 pm

2 stops34h 24m

$760

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

11:34 am-7:40 am

1 stop14h 06m

London Heathrow

Wed 4/8

12:15 pm-6:07 pm

1 stop11h 52m

$762

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/8

10:05 am-10:40 pm

2 stops30h 35m

London Heathrow

Tue 4/14

6:15 am-11:54 pm

2 stops23h 39m

$768

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Mon 3/30

11:34 am-6:15 pm

2 stops24h 41m

London Heathrow

Wed 4/8

7:30 pm-11:54 pm

2 stops34h 24m

$769

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 4/1

11:34 am-2:30 pm

2 stops20h 56m

London Heathrow

Wed 4/8

7:30 pm-11:54 pm

2 stops34h 24m

$772

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from La Crosse to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to London Heathrow Airport?

British Airways, American Airlines and Delta are the top three most popular airlines that fly to London Heathrow Airport from La Crosse according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from La Crosse to London Heathrow Airport

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

Cheap La Crosse to London Heathrow Airport (LSE to LHR) flight deals and tips

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

Fastest flight time

15h 30m

Direct flights

None
The fastest flight from La Crosse to London Heathrow Airport takes 15h 30m
There are no direct flights from La Crosse to London Heathrow Airport. There are no popular flight routes from La Crosse to London Heathrow Airport.
Search flight deals

  • How far is La Crosse to London Heathrow by plane?

    There are 3979.3 mi between La Crosse and London Heathrow. 15h 30m is a normal flight duration for this route.

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

    Prices for flights from La Crosse Airport to London Heathrow Airport refresh daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from La Crosse Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Stratford-upon-Avon
Crawley
Hayes
Wembley
Dartford
Brentwood
Croydon
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted

Why use momondo?

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

Finding the right flight to London from La Crosse 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 London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for La Crosse to London flights to just show those with flexible booking policies.

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

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 London from La Crosse.

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

Price alerts on flights to London from La Crosse are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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