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Cheap flights from Wisconsin to London Heathrow Airport from £197

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 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
18 Apr — 25 Apr1
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 19 March 2026.

Sat 9/518:05
ORD
-
LHR
1 stop34h 15m
TAP AIR PORTUGAL
Sat 16/519:50
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Deal found 15/3£443
Thu 5/1119:20
ORD
-
LHR
2 stops56h 15m
Scandinavian Airlines
Mon 9/1106:40
LHR
-
ORD
1 stop16h 05m
Scandinavian Airlines
Deal found 15/3£452
Mon 20/419:15
ORD
-
LHR
1 stop14h 45m
Scandinavian Airlines
Mon 4/506:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Deal found 14/3£453
Sun 11/1019:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Sun 18/1019:50
LHR
-
ORD
2 stops26h 20m
Scandinavian Airlines
Deal found 17/3£456
Sun 11/1019:15
ORD
-
LHR
1 stop16h 25m
Scandinavian Airlines
Sat 24/1015:35
LHR
-
ORD
2 stops32h 10m
Scandinavian Airlines
Deal found 16/3£458
Tue 6/1019:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Tue 13/1009:55
LHR
-
ORD
2 stops36h 15m
Scandinavian Airlines
Deal found 17/3£459
Sat 2/519:15
ORD
-
LHR
1 stop14h 45m
Scandinavian Airlines
Tue 19/506:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Deal found 18/3£460
Sun 18/1019:15
ORD
-
LHR
2 stops15h 10m
Scandinavian Airlines
Fri 23/1006:40
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Deal found 16/3£461
Wed 28/1020:20
ORD
-
LHR
1 stop16h 20m
Scandinavian Airlines
Tue 3/1107:05
LHR
-
ORD
2 stops15h 40m
Scandinavian Airlines
Deal found 15/3£461
Wed 30/919:15
ORD
-
LHR
2 stops20h 20m
Scandinavian Airlines
Sun 4/1017:00
LHR
-
ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 17/3£462
Thu 3/1219:20
ORD
-
LHR
2 stops15h 40m
Scandinavian Airlines
Thu 10/1221:05
LHR
-
ORD
2 stops25h 40m
Scandinavian Airlines
Deal found 17/3£463
Sat 18/418:05
ORD
-
LHR
1 stop12h 40m
TAP AIR PORTUGAL
Fri 24/406:00
LHR
-
ORD
1 stop16h 00m
TAP AIR PORTUGAL
Deal found 15/3£464

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 19 March 2026.

Round-trip from

£443

One-way from

£197

Popular in

June

Cheapest in

January

Average price

£697
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 9/5-16/5
  • 2 total stops
  • 60h 25m total
  • Wisconsin to London
Search Deals
19/4
  • 19/4
  • 2 total stops
  • 19h 50m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 19 March 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

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 23/8

07:30-06:45

1 stop17h 15m

London Heathrow

Tue 8/9

07:25-18:55

2 stops17h 30m

£581

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 19/8

09:26-10:40

2 stops19h 14m

London Heathrow

Wed 26/8

17:40-13:43

2 stops26h 03m

£594

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 19/8

15:44-11:15

1 stop13h 31m

London Heathrow

Wed 26/8

15:15-23:30

1 stop14h 15m

£602

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Mon 13/4

12:34-08:30

1 stop13h 56m

London Heathrow

Mon 20/4

15:30-14:00

2 stops28h 30m

£604

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 27/8

16:30-06:45

Nonstop8h 15m

London Heathrow

Thu 3/9

07:25-14:00

1 stop12h 35m

£605

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 4/4

16:20-10:45

1 stop12h 25m

London Heathrow

Wed 15/4

08:40-14:30

1 stop11h 50m

£612

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 9/8

16:30-06:45

Nonstop8h 15m

London Heathrow

Sun 23/8

16:25-14:00

1 stop27h 35m

£614

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 24/4

14:48-09:00

1 stop12h 12m

London Heathrow

Fri 8/5

06:50-15:10

2 stops14h 20m

£617

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Fri 1/5

10:40-06:45

1 stop14h 05m

London Heathrow

Fri 8/5

06:50-15:10

2 stops14h 20m

£617

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 29/4

19:05-09:05

Nonstop8h 00m

London Heathrow

Fri 8/5

11:10-13:50

Nonstop8h 40m

£626

Flights are sorted by cheapest return flights first.

Deals found on 19/3

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, October is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £401). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £810). 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.

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 £612, Lufthansa can have you in London Heathrow Airport from Wisconsin in 12h 25m. Wisconsin and London Heathrow Airport are separated by a distance of 3939 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 Madison Truax Field - 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, October is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £401). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £810). 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
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Swindon
Bedford

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
Newark to Stansted flights
Newark to Luton flights
Atlanta to Heathrow flights
Newark to London City flights
Orlando to Heathrow flights
Hobby to Heathrow flights
Dulles Intl to Gatwick flights
Boston to London City flights
Miami to Heathrow flights
Reagan-National to Heathrow flights
LaGuardia to Stansted flights
Dulles Intl to London City flights
Boston to Stansted flights
Denver to Heathrow flights
Baltimore to Gatwick flights
Los Angeles to Stansted flights
Reagan-National to Gatwick flights
Philadelphia to Heathrow flights
George Bush Intcntl to Heathrow flights
Los Angeles to London City flights
Los Angeles to Gatwick flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
Minneapolis to Heathrow flights
Charlotte to Heathrow flights
O'Hare Intl to Stansted flights
Tampa to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Raleigh to Heathrow flights

Fly with Cheapflights

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

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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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