What airlines fly to London Heathrow Airport?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to London Heathrow Airport from Wisconsin according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 6 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London Heathrow Airport?

On average, it takes 10h 40m to fly from Wisconsin to London Heathrow Airport if you fly out of Milwaukee (the most popular airport in Wisconsin) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Madison and into London Heathrow Airport, then the flight time is around 11h 10m.

What is the cheapest airline that flies from Wisconsin to London Heathrow?

Delta, Air Canada, and Aer Lingus are the most popular carriers operating from Wisconsin to London Heathrow

How many operators does momondo search for flights from Wisconsin to London Heathrow Airport?

As of October 2026, there are 6 operators available to choose from for flights from Wisconsin to London Heathrow Airport.

How old do you have to be to fly from Wisconsin to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin 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.

$334 Cheap Flights from Wisconsin to London Heathrow Airport in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Wisconsin to London

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:20 pm - 12:00 pmMKE Milwaukee-Mitchell-LHR London Heathrow

10h 40m1 stop Chicago O'Hare Intl

6:50 am - 6:53 pmLHR London Heathrow-MKE Milwaukee-Mitchell

18h 03m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$801United Airlines

Mon, Mar 1 - Wed, Mar 3

3:47 pm - 11:55 amATW Appleton Intl-LHR London Heathrow

14h 08m1 stop Chicago O'Hare Intl

6:50 am - 3:10 pmLHR London Heathrow-ATW Appleton Intl

14h 20m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$801United Airlines

Sun, Apr 11 - Tue, Apr 13

12:20 pm - 6:25 amMKE Milwaukee-Mitchell-LHR London Heathrow

12h 05m1 stop Atlanta Hartsfield-Jackson

8:40 am - 9:09 pmLHR London Heathrow-MKE Milwaukee-Mitchell

18h 29m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$884Delta

Wed, Jan 13 - Tue, Jan 19

8:10 am - 7:05 amMKE Milwaukee-Mitchell-LHR London Heathrow

16h 55m1 stop Minneapolis St Paul

8:40 am - 9:09 pmLHR London Heathrow-MKE Milwaukee-Mitchell

17h 29m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$884Delta

Mon, Mar 8 - Tue, Mar 16

1:00 pm - 8:05 amMKE Milwaukee-Mitchell-LHR London Heathrow

13h 05m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

11:45 am - 9:09 pmLHR London Heathrow-MKE Milwaukee-Mitchell

15h 24m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$889Virgin Atlantic

Wed, Jan 13 - Tue, Jan 19

6:50 pm - 5:40 pmMSN Madison Truax Field-LHR London Heathrow

16h 50m2 stops Chicago O'Hare Intl Frankfurt am Main

9:00 am - 8:54 pmLHR London Heathrow-MSN Madison Truax Field

17h 54m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$893Lufthansa

Sun, Apr 4 - Tue, Apr 6

12:06 pm - 1:05 pmATW Appleton Intl-LHR London Heathrow

18h 59m1 stop Minneapolis St Paul

8:55 am - 8:42 pmLHR London Heathrow-ATW Appleton Intl

17h 47m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

$896Virgin Atlantic

Sun, Apr 11 - Fri, Apr 16

5:20 pm - 1:45 pmATW Appleton Intl-LHR London Heathrow

14h 25m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:30 am - 8:42 pmLHR London Heathrow-ATW Appleton Intl

15h 12m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County

$901Air France

Sun, Apr 11 - Fri, Apr 16

11:37 am - 10:25 amCWA Wausau Central Wisconsin-LHR London Heathrow

16h 48m1 stop Chicago O'Hare Intl

4:30 pm - 12:24 amLHR London Heathrow-CWA Wausau Central Wisconsin

13h 54m1 stop Chicago O'Hare Intl

$916American Airlines

Wed, Jan 27 - Tue, Feb 2

11:37 am - 10:25 amCWA Wausau Central Wisconsin-LHR London Heathrow

16h 48m1 stop Chicago O'Hare Intl

4:30 pm - 12:24 amLHR London Heathrow-CWA Wausau Central Wisconsin

13h 54m1 stop Chicago O'Hare Intl

$917American Airlines

Wed, Jan 27 - Tue, Feb 2

Cheap last minute flights

Enter your travel dates to find the best prices.

3:45 pm - 1:05 pmCWA Wausau Central Wisconsin-LHR London Heathrow

15h 20m1 stop Minneapolis St Paul

8:25 pm - 9:00 pmLHR London Heathrow-CWA Wausau Central Wisconsin

30h 35m2 stops Amsterdam Schiphol Minneapolis St Paul

$961KLM

Wed, Oct 21 - Wed, Nov 11

3:45 pm - 1:05 pmCWA Wausau Central Wisconsin-LHR London Heathrow

15h 20m1 stop Minneapolis St Paul

8:40 am - 9:00 pmLHR London Heathrow-CWA Wausau Central Wisconsin

18h 20m2 stops Amsterdam Schiphol Minneapolis St Paul

$961Delta

Wed, Oct 21 - Wed, Nov 11

6:54 am - 7:10 amCWA Wausau Central Wisconsin-LHR London Heathrow

18h 16m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

8:40 am - 9:00 pmLHR London Heathrow-CWA Wausau Central Wisconsin

18h 20m2 stops Amsterdam Schiphol Minneapolis St Paul

$966Delta

Wed, Oct 21 - Wed, Nov 11

3:45 pm - 1:50 pmCWA Wausau Central Wisconsin-LHR London Heathrow

16h 05m2 stops Minneapolis St Paul Amsterdam Schiphol

8:25 pm - 9:00 pmLHR London Heathrow-CWA Wausau Central Wisconsin

30h 35m2 stops Amsterdam Schiphol Minneapolis St Paul

$969KLM

Wed, Oct 21 - Wed, Nov 11

4:42 pm - 12:15 pmCWA Wausau Central Wisconsin-LHR London Heathrow

13h 33m1 stop Chicago O'Hare Intl

3:40 pm - 12:15 amLHR London Heathrow-CWA Wausau Central Wisconsin

14h 35m1 stop Chicago O'Hare Intl

$990American Airlines

Wed, Oct 21 - Wed, Nov 11

12:23 pm - 7:55 amLSE La Crosse-LHR London Heathrow

13h 32m1 stop Chicago O'Hare Intl

4:30 pm - 11:59 pmLHR London Heathrow-LSE La Crosse

12h 29m1 stop Chicago O'Hare Intl

$990American Airlines

Wed, Oct 21 - Tue, Oct 27

7:46 pm - 1:05 pmMSN Madison Truax Field-LHR London Heathrow

11h 19m1 stop Minneapolis St Paul

10:50 am - 11:03 pmLHR London Heathrow-MSN Madison Truax Field

17h 13m1 stop Atlanta Hartsfield-Jackson

$1,145Multiple Airlines

Fri, Oct 16 - Sun, Oct 25

7:04 am - 6:25 amLSE La Crosse-LHR London Heathrow

17h 21m2 stops Chicago O'Hare Intl New York John F Kennedy Intl

8:50 am - 6:20 pmLHR London Heathrow-LSE La Crosse

14h 30m2 stops Dublin Chicago O'Hare Intl

$1,184British Airways

Wed, Oct 21 - Tue, Oct 27

12:23 pm - 7:50 amLSE La Crosse-LHR London Heathrow

13h 27m2 stops Chicago O'Hare Intl Philadelphia

8:25 am - 6:20 pmLHR London Heathrow-LSE La Crosse

14h 55m2 stops Dublin Chicago O'Hare Intl

$1,185British Airways

Wed, Oct 21 - Tue, Oct 27

12:39 pm - 11:50 amMSN Madison Truax Field-LHR London Heathrow

17h 11m3 stops Chicago O'Hare Intl Newark Toronto Pearson Intl

12:05 pm - 9:00 pmLHR London Heathrow-MSN Madison Truax Field

14h 55m2 stops Toronto Pearson Intl Chicago O'Hare Intl

$1,240Multiple Airlines

Fri, Oct 16 - Tue, Oct 20

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United Airlines flights from Wisconsin to London Heathrow Airport

Our best United Airlines deals on Wisconsin to London Heathrow Airport flight tickets

United Airlines

Mar 1

MKE7:20 pmMilwaukee-Mitchell

10h 40m

1 stop

LHR12:00 pmLondon Heathrow

Mar 3

LHR6:50 amLondon Heathrow

18h 03m

2 stops

MKE6:53 pmMilwaukee-Mitchell

$801

United Airlines

Apr 11

ATW1:10 pmAppleton Intl

14h 50m

2 stops

LHR10:00 amLondon Heathrow

Apr 13

LHR6:55 amLondon Heathrow

16h 58m

2 stops

ATW5:53 pmAppleton Intl

$802

United Airlines

Mar 1

MKE3:50 pmMilwaukee-Mitchell

13h 00m

2 stops

LHR10:50 amLondon Heathrow

Mar 3

LHR6:50 amLondon Heathrow

15h 53m

2 stops

MKE4:43 pmMilwaukee-Mitchell

$806

Delta flights from Wisconsin to London Heathrow Airport

Our best Delta deals on Wisconsin to London Heathrow Airport flight tickets

Delta

Jan 13

MKE12:20 pmMilwaukee-Mitchell

12h 05m

1 stop

LHR6:25 amLondon Heathrow

Jan 19

LHR8:40 amLondon Heathrow

18h 29m

2 stops

MKE9:09 pmMilwaukee-Mitchell

$884

Delta

Jan 13

MSN3:30 pmMadison Truax Field

14h 10m

2 stops

LHR11:40 amLondon Heathrow

Jan 19

LHR6:30 amLondon Heathrow

18h 35m

2 stops

MSN7:05 pmMadison Truax Field

$889

Delta

Mar 31

MSN2:00 pmMadison Truax Field

14h 30m

2 stops

LHR10:30 amLondon Heathrow

Apr 7

LHR8:40 amLondon Heathrow

16h 25m

2 stops

MSN7:05 pmMadison Truax Field

$893

momondo Fare Finder

Use the filters below to find and compare flights from Wisconsin to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 3/1

7:20 pm-12:00 pm

1 stop10h 40m

London Heathrow

Wed 3/3

6:50 am-6:53 pm

2 stops18h 03m

$801

Quickest round-trip

AppletonLondon

ATW Appleton Intl - LHR London Heathrow

ATWLHR

Appleton Intl

Sun 4/11

3:47 pm-11:55 am

1 stop14h 08m

London Heathrow

Tue 4/13

6:50 am-3:10 pm

2 stops14h 20m

$801

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Wed 1/13

12:20 pm-6:25 am

1 stop12h 05m

London Heathrow

Tue 1/19

8:40 am-9:09 pm

2 stops18h 29m

$884

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 3/8

8:10 am-7:05 am

1 stop16h 55m

London Heathrow

Tue 3/16

8:40 am-9:09 pm

2 stops17h 29m

$884

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Wed 1/13

1:00 pm-8:05 am

2 stops13h 05m

London Heathrow

Tue 1/19

11:45 am-9:09 pm

2 stops15h 24m

$889

MadisonLondon

MSN Madison Truax Field - LHR London Heathrow

MSNLHR

Madison Truax Field

Sun 4/4

6:50 pm-5:40 pm

2 stops16h 50m

London Heathrow

Tue 4/6

9:00 am-8:54 pm

2 stops17h 54m

$893

AppletonLondon

ATW Appleton Intl - LHR London Heathrow

ATWLHR

Appleton Intl

Sun 4/11

12:06 pm-1:05 pm

1 stop18h 59m

London Heathrow

Fri 4/16

8:55 am-8:42 pm

2 stops17h 47m

$896

AppletonLondon

ATW Appleton Intl - LHR London Heathrow

ATWLHR

Appleton Intl

Sun 4/11

5:20 pm-1:45 pm

2 stops14h 25m

London Heathrow

Fri 4/16

11:30 am-8:42 pm

2 stops15h 12m

$901

WausauLondon

CWA Wausau Central Wisconsin - LHR London Heathrow

CWALHR

Wausau Central Wisconsin

Wed 1/27

11:37 am-10:25 am

1 stop16h 48m

London Heathrow

Tue 2/2

4:30 pm-12:24 am

1 stop13h 54m

$916

WausauLondon

CWA Wausau Central Wisconsin - LHR London Heathrow

CWALHR

Wausau Central Wisconsin

Wed 1/27

11:37 am-10:25 am

1 stop16h 48m

London Heathrow

Tue 2/2

4:30 pm-12:24 am

1 stop13h 54m

$917

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Wisconsin 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

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Wisconsin, with most prices found around $717. If you’re not able to fly to London Heathrow Airport in January, then April is your next best option. Flight prices from Wisconsin to London Heathrow Airport during April average around $803.

Can stopping save me money on Wisconsin to London Heathrow Airport flights?

You could potentially save up to 16% on your flight if you consider stops on a Wisconsin to London Heathrow Airport flight.

Cheap Wisconsin to London Heathrow Airport flight deals and tips

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

Best Price Found	$334
Fastest flight time	7h 45m
Direct flights	None

The best one-way flight to London Heathrow Airport from Wisconsin in the past 72 hours is $334. The best round-trip flight deal from Wisconsin to London Heathrow Airport found on momondo in the last 72 hours is $801.

The fastest flight from Wisconsin to London Heathrow Airport takes 7h 45m

There are no direct flights from Wisconsin to London Heathrow Airport. There are no popular flight routes from Wisconsin to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from Wisconsin to London Heathrow Airport

When did momondo last update prices for flights from Wisconsin to London Heathrow Airport?
Prices for flights from Wisconsin to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Wisconsin to London Heathrow Airport?
As of October 2026, there are 6 operators available to choose from for flights from Wisconsin to London Heathrow Airport.
How old do you have to be to fly from Wisconsin to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin 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.

Best airlines flying from Wisconsin to London Heathrow Airport

Compare and see reviews for airlines that fly from Wisconsin to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $337	Free Cancellation	Rating 7.5 695 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $596	Free Cancellation	Rating 7.8 8,652 reviews	Search Delta flights
British Airways	PriceFrom $624	Free Cancellation	Rating 6.7 8,261 reviews	Search British Airways flights
KLM	PriceFrom $656	Free Cancellation	Rating 7.8 1,588 reviews	Search KLM flights
American Airlines	PriceFrom $663	Free Cancellation	Rating 7.0 12,168 reviews	Search American Airlines flights
United Airlines	PriceFrom $670	Free Cancellation	Rating 7.4 10,366 reviews	Search United Airlines flights

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Gatwick

Croydon

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Stratford-upon-Avon

Milton Keynes

Luton

Stansted

Dover

Kingston upon Thames

Wembley

Richmond

Watford

Worthing

Harrow

Slough

Hook

Ilford

Canterbury

Dunstable

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Wisconsin to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Wisconsin with this policy.

How can momondo help me find flights from Wisconsin to London?

momondo helps you find the best flight between Wisconsin and London 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 Wisconsin to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Wisconsin. 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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Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $421

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Flights to London City Airportfrom $645

Flights to London Luton Airportfrom $419

Flights to Glasgow Intl Airportfrom $535

Flights to London Southend Airportfrom $561

Flights to Belfast Intl Airportfrom $717

Flights to Belfast City Airportfrom $725

Cheap flights from Wisconsin to London from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Wisconsin to London departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Wisconsin to London

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United Airlines flights from Wisconsin to London Heathrow Airport

Our best United Airlines deals on Wisconsin to London Heathrow Airport flight tickets

Delta flights from Wisconsin to London Heathrow Airport

Our best Delta deals on Wisconsin to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Wisconsin to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Wisconsin to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

Can stopping save me money on Wisconsin to London Heathrow Airport flights?

What is the cheapest airline that flies from Wisconsin to London Heathrow?

What airlines fly to London Heathrow Airport?

How long does it take to fly to London Heathrow Airport?

Cheap Wisconsin to London Heathrow Airport flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Wisconsin to London Heathrow Airport

Best airlines flying from Wisconsin to London Heathrow Airport

Compare and see reviews for airlines that fly from Wisconsin to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Wisconsin flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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