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Cheap flights from Wisconsin to London Heathrow Airport from £241

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
11 Jun — 18 Jun1
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 12 May 2026.

Sun 6/918:00
ORD
-
LHR
1 stop17h 45m
TAP AIR PORTUGAL
Thu 17/919:50
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Deal found 7/5£596
Wed 16/911:25
ORD
-
LHR
1 stop27h 40m
Turkish Airlines
Wed 23/911:20
LHR
-
ORD
1 stop28h 20m
Turkish Airlines
Deal found 7/5£597
Sun 9/819:25
ORD
-
LHR
1 stop18h 55m
Icelandair
Sun 23/821:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 7/5£598
Sun 10/512:59
ORD
-
LHR
1 stop11h 46m
Virgin Atlantic
Tue 19/508:40
LHR
-
ORD
1 stop11h 35m
Virgin Atlantic
Deal found 7/5£599
Wed 9/919:15
ORD
-
LHR
1 stop17h 15m
Scandinavian Airlines
Wed 23/907:05
LHR
-
ORD
2 stops15h 05m
Scandinavian Airlines
Deal found 10/5£602
Mon 7/919:05
ORD
-
LHR
1 stop11h 55m
SWISS
Wed 16/908:40
LHR
-
ORD
1 stop13h 15m
SWISS
Deal found 8/5£602
Mon 7/919:05
ORD
-
LHR
1 stop11h 55m
SWISS
Tue 15/906:00
LHR
-
ORD
1 stop12h 35m
SWISS
Deal found 11/5£603
Tue 1/919:15
ORD
-
LHR
1 stop17h 15m
Scandinavian Airlines
Sat 31/1010:20
LHR
-
ORD
1 stop12h 25m
Scandinavian Airlines
Deal found 10/5£604
Sun 27/919:15
ORD
-
LHR
1 stop20h 25m
Scandinavian Airlines
Mon 5/1006:40
LHR
-
ORD
2 stops15h 30m
Scandinavian Airlines
Deal found 11/5£605
Wed 26/819:05
ORD
-
LHR
1 stop16h 45m
SWISS
Mon 31/818:40
LHR
-
ORD
1 stop23h 55m
SWISS
Deal found 10/5£605
Sat 12/918:05
ORD
-
LHR
1 stop12h 40m
TAP AIR PORTUGAL
Fri 18/906:00
LHR
-
ORD
1 stop16h 00m
TAP AIR PORTUGAL
Deal found 9/5£606
Thu 17/918:00
ORD
-
LHR
1 stop12h 45m
TAP AIR PORTUGAL
Wed 30/908:00
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 9/5£608

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 12 May 2026.

Round-trip from

£596

One-way from

£241

Popular in

June

Cheapest in

January

Average price

£636
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 6/9-17/9
  • 2 total stops
  • 43h 55m total
  • Wisconsin to London
Search Deals
British Airways
  • British Airways
  • 25/8
  • 1 total stop
  • 11h 29m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 12 May 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

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 16/8

19:15-17:40

1 stop16h 25m

London Heathrow

Thu 20/8

19:50-21:52

2 stops32h 02m

£619

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 25/10

22:50-12:00

Nonstop8h 10m

London Heathrow

Thu 12/11

06:50-12:10

1 stop11h 20m

£632

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 6/10

10:30-09:20

2 stops16h 50m

London Heathrow

Tue 20/10

21:05-16:10

2 stops25h 05m

£632

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

07:00-07:10

1 stop18h 10m

London Heathrow

Fri 2/10

08:40-21:58

2 stops19h 18m

£646

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 19/8

13:35-07:10

1 stop11h 35m

London Heathrow

Wed 26/8

06:30-17:48

2 stops17h 18m

£646

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 26/8

17:09-13:15

1 stop14h 06m

London Heathrow

Wed 2/9

08:40-21:57

2 stops19h 17m

£646

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 4/11

06:30-07:05

1 stop18h 35m

London Heathrow

Fri 20/11

10:00-21:35

2 stops17h 35m

£646

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/9

07:00-09:20

2 stops20h 20m

London Heathrow

Mon 21/9

07:05-16:10

2 stops15h 05m

£659

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

09:55-07:40

1 stop15h 45m

London Heathrow

Fri 2/10

09:45-23:07

1 stop19h 22m

£660

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Tue 6/10

11:18-11:15

1 stop17h 57m

London Heathrow

Tue 13/10

11:10-23:19

1 stop18h 09m

£667

Flights are sorted by cheapest return flights first.

Deals found on 11/5

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

How far ahead should I book a flight from Wisconsin to London Heathrow Airport?

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Wisconsin to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £346). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £791). 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?

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 £632, Scandinavian Airlines can have you in London Heathrow Airport from Wisconsin in 8h 10m. 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 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, October is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £346). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £791). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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