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Cheap flights from Wisconsin to London Heathrow Airport from £224

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Wisconsin to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Wisconsin to Heathrow
Explore the most affordable flight options available from Wisconsin to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Mon 21/919:15
ORD
-
LHR
1 stop16h 25m
Scandinavian Airlines
Sat 3/1006:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Deal found 21/7£520
Sun 15/1118:30
ORD
-
LHR
1 stop19h 00m
Icelandair
Fri 20/1120:35
LHR
-
ORD
1 stop26h 45m
Icelandair
Deal found 22/7£520
Wed 7/1022:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Tue 13/1013:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 22/7£522
Wed 28/1019:30
ORD
-
LHR
1 stop10h 20m
Icelandair
Tue 3/1112:15
LHR
-
ORD
1 stop11h 05m
Icelandair
Deal found 20/7£523
Sun 18/1022:25
ORD
-
LHR
1 stop31h 30m
Icelandair
Sun 25/1020:35
LHR
-
ORD
1 stop26h 45m
Icelandair
Deal found 20/7£523
Tue 22/919:25
ORD
-
LHR
1 stop18h 55m
Icelandair
Fri 2/1013:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 22/7£524
Sat 3/1019:25
ORD
-
LHR
1 stop18h 55m
Icelandair
Mon 12/1021:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 19/7£525
Fri 9/1022:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Sun 18/1021:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 21/7£526
Wed 14/1019:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Mon 19/1021:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 18/7£526
Tue 29/919:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Tue 6/1013:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 22/7£527
Fri 30/1019:25
MSP
-
LHR
1 stop10h 25m
Icelandair
Sun 8/1112:15
LHR
-
MSP
1 stop11h 10m
Icelandair
Deal found 21/7£549
Sun 15/1117:18
GRB
-
LHR
1 stop32h 37m
United Airlines
Wed 18/1106:50
LHR
-
GRB
2 stops33h 40m
United Airlines
Deal found 18/7£550

Find flight deals from Wisconsin to Heathrow

Keep the following information in mind while searching for Wisconsin to Heathrow flight deals. Data was last updated 23 July 2026.

Round-trip from

£520

One-way from

£224

Popular in

June

Cheapest in

January

Average price

£807
Scandinavian Airlines
  • Scandinavian Airlines
  • 21/9-3/10
  • 2 total stops
  • 31h 55m total
  • Wisconsin to London
Search Deals
Icelandair
  • Icelandair
  • 10/10
  • 1 total stop
  • 10h 25m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£140 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Wisconsin to Heathrow 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 858,174 searches. Data last updated 23 July 2026.
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

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Sun 15/11

18:45-07:55

1 stop31h 10m

London Heathrow

Wed 18/11

06:50-21:24

2 stops20h 34m

£558

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Mon 11/1

15:57-12:00

1 stop14h 03m

London Heathrow

Wed 13/1

06:50-19:02

2 stops18h 12m

£561

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 1/10

19:15-19:55

2 stops18h 40m

London Heathrow

Thu 5/11

21:05-16:45

2 stops25h 40m

£616

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 22/9

10:25-09:35

2 stops17h 10m

London Heathrow

Fri 2/10

06:40-16:10

2 stops15h 30m

£634

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 15/11

13:11-05:55

1 stop10h 44m

London Heathrow

Wed 18/11

06:50-19:05

2 stops18h 15m

£648

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 2/11

15:00-10:25

1 stop13h 25m

London Heathrow

Fri 6/11

06:50-18:48

2 stops17h 58m

£648

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 15/11

10:37-07:10

2 stops14h 33m

London Heathrow

Fri 20/11

06:50-16:53

2 stops16h 03m

£650
Fastest return journey

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 28/9

21:30-11:55

Nonstop8h 25m

London Heathrow

Tue 6/10

06:50-12:00

1 stop11h 10m

£651

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Mon 30/11

07:00-07:05

1 stop18h 05m

London Heathrow

Wed 9/12

06:30-21:12

2 stops20h 42m

£655

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 21/10

18:50-10:50

1 stop10h 00m

London Heathrow

Tue 27/10

06:05-23:59

2 stops22h 54m

£658

Flights are sorted by cheapest return flights first.

Deals found on 21/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Wisconsin to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Wisconsin with our price prediction graph.
Estimated return 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 Wisconsin to London Heathrow Airport

What is the cheapest month to book a flight from Wisconsin to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £536). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Wisconsin to London Heathrow Airport?

Airfare is typical for this route at the moment.
Wisconsin to London Heathrow Airport flights typically cost between £527 and £916 in October.
The cheapest return price found within the last 5 days was £643 on Lufthansa (21 Oct–28 Oct).

Related info for your journey

Find useful and relevant information for your journey from Wisconsin to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Wisconsin to London Heathrow Airport?

    For as low as £655, United Airlines can have you in London Heathrow Airport from Wisconsin in 18h 05m. Wisconsin and London Heathrow Airport are separated by a distance of 3876 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Wisconsin to London Heathrow Airport?

    When deciding which route to take from Wisconsin to London Heathrow Airport consider Chicago O'Hare Intl - London Heathrow, Minneapolis St Paul - London Heathrow or Milwaukee-Mitchell - London Heathrow as they are the most popular.

  • Can I find deals for flights from Wisconsin to Heathrow that include hotel bookings?

    Yes. In addition to deals on Wisconsin to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Wisconsin to Heathrow?

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

  • Can I find deals for business class flights from Wisconsin to Heathrow?

    Yes. Cheapflights offers flight deals from Wisconsin to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Wisconsin to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £536). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Wisconsin to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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O'Hare Intl to Heathrow flights
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Boston to Gatwick flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Newark to London City flights
Newark to Stansted flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Miami to Heathrow flights
Newark to Luton flights
Boston to London City flights
Hobby to Heathrow flights
Dulles Intl to London City flights
Boston to Stansted flights
Denver to Heathrow flights
Los Angeles to Gatwick flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to Stansted flights
George Bush Intcntl to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to Gatwick flights
San Francisco to London City flights
Sky Harbor Intl to Heathrow flights
Los Angeles to London City flights
O'Hare Intl to Stansted flights
Raleigh to Heathrow flights
Orlando to Gatwick flights
O'Hare Intl to London City flights
Dallas/Fort Worth to Gatwick flights
Charlotte to Heathrow flights
San Francisco to Stansted flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Wisconsin to Heathrow?

Cheapflights helps you search for flights from Wisconsin to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Wisconsin to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Wisconsin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Wisconsin to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Wisconsin to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Wisconsin to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Wisconsin to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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