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

Aer Lingus, British Airways, and United Airlines are the most popular carriers operating from Wisconsin to London Heathrow

How many flights depart from Wisconsin to London Heathrow Airport on average per week?

The number of flights available between Wisconsin and London Heathrow Airport is 427 per week as of June 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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

If you’re flying from a popular airport in Wisconsin, such as Green Bay or Appleton, and flying into London Heathrow Airport, then you can expect flight times to average 11h 03m and 12h, respectively.

When did momondo last update prices for flights from Wisconsin to London Heathrow Airport?

Prices for flights from Wisconsin to London Heathrow Airport are updated daily.

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

As of June 2026, there are 8 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 required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£169 Cheap Flights from Wisconsin to London Heathrow Airport in 2026

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Find the cheapest flights from Wisconsin to London

Return

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

15:01 - 13:15

MKE

LHR

16h 14m

1 stop

06:15 - 16:13

LHR

MKE

15h 58m

2 stops

£368Virgin Atlantic

Mon, 10 Aug - Tue, 18 Aug

13:27 - 10:20

MKE

LHR

14h 53m

2 stops

06:15 - 16:13

LHR

MKE

15h 58m

2 stops

£371Virgin Atlantic

Mon, 10 Aug - Tue, 18 Aug

08:20 - 12:00

ATW

LHR

21h 40m

1 stop

11:05 - 15:10

LHR

ATW

34h 05m

2 stops

£557United Airlines

Mon, 7 Dec - Wed, 9 Dec

08:20 - 12:00

ATW

LHR

21h 40m

1 stop

11:05 - 15:10

LHR

ATW

34h 05m

2 stops

£558United Airlines

Mon, 7 Dec - Wed, 9 Dec

16:49 - 09:05

MKE

LHR

10h 16m

1 stop

07:50 - 19:40

LHR

MKE

17h 50m

2 stops

£643British Airways

Wed, 14 Oct - Tue, 20 Oct

07:00 - 07:05

CWA

LHR

18h 05m

1 stop

06:30 - 15:48

LHR

CWA

15h 18m

2 stops

£648Multiple Airlines

Mon, 30 Nov - Wed, 9 Dec

18:18 - 17:05

MKE

LHR

16h 47m

2 stops

08:45 - 22:45

LHR

MKE

20h 00m

2 stops

£649Lufthansa

Sun, 1 Nov - Fri, 6 Nov

18:32 - 15:40

MKE

LHR

15h 08m

2 stops

10:50 - 22:59

LHR

MKE

18h 09m

2 stops

£651Lufthansa

Wed, 14 Oct - Tue, 20 Oct

18:19 - 18:55

LSE

LHR

18h 36m

2 stops

06:00 - 17:54

LHR

LSE

16h 54m

2 stops

£653British Airways

Wed, 21 Oct - Tue, 27 Oct

14:49 - 06:30

MSN

LHR

57h 41m

2 stops

10:50 - 21:00

LHR

MSN

16h 10m

2 stops

£657Multiple Airlines

Fri, 9 Oct - Tue, 20 Oct

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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

7 Dec

ATW08:20Appleton Intl

21h 40m

1 stop

LHR12:00London Heathrow

9 Dec

LHR11:05London Heathrow

34h 05m

2 stops

ATW15:10Appleton Intl

£557

United Airlines

7 Dec

ATW08:20Appleton Intl

21h 40m

1 stop

LHR12:00London Heathrow

9 Dec

LHR11:05London Heathrow

34h 05m

2 stops

ATW15:10Appleton Intl

£558

United Airlines

7 Dec

ATW14:43Appleton Intl

14h 22m

2 stops

LHR11:05London Heathrow

9 Dec

LHR11:05London Heathrow

34h 05m

2 stops

ATW15:10Appleton Intl

£561

KLM flights from Wisconsin to London Heathrow Airport

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

KLM

30 Nov

CWA16:15Wausau Central Wisconsin

15h 35m

2 stops

LHR13:50London Heathrow

9 Dec

LHR06:30London Heathrow

20h 42m

2 stops

CWA21:12Wausau Central Wisconsin

£654

KLM

9 Dec

GRB05:30Green Bay Austin-Straubel

21h 30m

1 stop

LHR09:00London Heathrow

16 Dec

LHR13:00London Heathrow

13h 37m

1 stop

GRB20:37Green Bay Austin-Straubel

£683

KLM

6 Jul

ATW05:31Appleton Intl

18h 54m

1 stop

LHR06:25London Heathrow

20 Aug

LHR09:20London Heathrow

19h 24m

1 stop

ATW22:44Appleton Intl

£825

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 return flight

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 10/8

15:01-13:15

1 stop16h 14m

London Heathrow

Tue 18/8

06:15-16:13

2 stops15h 58m

£368

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 10/8

13:27-10:20

2 stops14h 53m

London Heathrow

Tue 18/8

06:15-16:13

2 stops15h 58m

£371

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Mon 7/12

08:20-12:00

1 stop21h 40m

London Heathrow

Wed 9/12

11:05-15:10

2 stops34h 05m

£557

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Mon 7/12

08:20-12:00

1 stop21h 40m

London Heathrow

Wed 9/12

11:05-15:10

2 stops34h 05m

£558

Fastest return journey

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 14/10

16:49-09:05

1 stop10h 16m

London Heathrow

Tue 20/10

07:50-19:40

2 stops17h 50m

£643

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Mon 30/11

07:00-07:05

1 stop18h 05m

London Heathrow

Wed 9/12

06:30-15:48

2 stops15h 18m

£648

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 1/11

18:18-17:05

2 stops16h 47m

London Heathrow

Fri 6/11

08:45-22:45

2 stops20h 00m

£649

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 14/10

18:32-15:40

2 stops15h 08m

London Heathrow

Tue 20/10

10:50-22:59

2 stops18h 09m

£651

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 21/10

18:19-18:55

2 stops18h 36m

London Heathrow

Tue 27/10

06:00-17:54

2 stops16h 54m

£653

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Fri 9/10

14:49-06:30

2 stops57h 41m

London Heathrow

Tue 20/10

10:50-21:00

2 stops16h 10m

£657

Flights are sorted by cheapest return 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?

In general, October is the cheapest month to fly from Wisconsin to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £430. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Wisconsin averaging around £439.

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

You could potentially save up to 21% 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

Fastest flight time	7h 40m
Direct flights	Every day

The fastest flight from Wisconsin to London Heathrow Airport takes 7h 40m

Direct flights go from Wisconsin to London Heathrow Airport every day.

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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 are updated daily.
How many operators does momondo search for flights from Wisconsin to London Heathrow Airport?
As of June 2026, there are 8 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 required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Eastbourne

Wembley

Milton Keynes

Gatwick

Luton

Stratford-upon-Avon

Slough

Southend-on-Sea

Maidstone

Northampton

Ipswich

Swindon

Ilford

Canterbury

Folkestone

Poole

Guildford

Hayes

Chichester

Bedford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Wisconsin to London . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Wisconsin to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Wisconsin 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 Wisconsin.

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

Yes. momondo can track prices for Wisconsin to London 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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Cheap flights from Wisconsin to London from £191

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 17/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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

KLM flights from Wisconsin to London Heathrow Airport

Our best KLM 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?

How many flights depart from Wisconsin to London Heathrow Airport on average per week?

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

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Wisconsin to London Heathrow Airport

Travelling 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, organise 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

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London Heathrow Airport flight routes

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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