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Cheap flights from Wisconsin to London Heathrow Airport from £238

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
30 May — 6 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 30 April 2026.

Sat 7/1119:20
ORD
-
LHR
2 stops15h 05m
Scandinavian Airlines
Sun 15/1110:20
LHR
-
ORD
1 stop12h 25m
Scandinavian Airlines
Deal found 26/4£539
Wed 28/1020:20
ORD
-
LHR
1 stop14h 40m
Scandinavian Airlines
Tue 3/1110:20
LHR
-
ORD
1 stop12h 25m
Scandinavian Airlines
Deal found 25/4£548
Sun 8/1119:20
ORD
-
LHR
2 stops15h 05m
Scandinavian Airlines
Sat 14/1106:40
LHR
-
ORD
1 stop16h 05m
Scandinavian Airlines
Deal found 26/4£551
Sat 7/1118:30
ORD
-
LHR
1 stop10h 20m
Icelandair
Wed 18/1112:15
LHR
-
ORD
1 stop11h 05m
Icelandair
Deal found 25/4£553
Fri 6/1118:30
ORD
-
LHR
1 stop10h 20m
Icelandair
Wed 18/1112:15
LHR
-
ORD
1 stop11h 05m
Icelandair
Deal found 25/4£554
Sun 10/522:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Tue 19/513:05
LHR
-
ORD
1 stop14h 20m
Icelandair
Deal found 25/4£555
Fri 6/1118:30
ORD
-
LHR
1 stop10h 20m
Icelandair
Sat 21/1120:35
LHR
-
ORD
1 stop26h 45m
Icelandair
Deal found 26/4£556
Tue 24/1119:20
ORD
-
LHR
1 stop14h 40m
Scandinavian Airlines
Tue 1/1219:30
LHR
-
ORD
1 stop27h 15m
Scandinavian Airlines
Deal found 26/4£556
Wed 4/1119:20
ORD
-
LHR
1 stop17h 10m
Scandinavian Airlines
Mon 9/1119:30
LHR
-
ORD
1 stop27h 15m
Scandinavian Airlines
Deal found 27/4£560
Thu 12/1119:20
ORD
-
LHR
1 stop14h 40m
Scandinavian Airlines
Mon 16/1106:40
LHR
-
ORD
1 stop16h 05m
Scandinavian Airlines
Deal found 28/4£561
Wed 14/1007:00
MKE
-
LHR
2 stops27h 00m
Scandinavian Airlines
Wed 21/1007:05
LHR
-
MKE
2 stops19h 03m
Scandinavian Airlines
Deal found 26/4£636
Sun 13/918:29
GRB
-
LHR
1 stop10h 21m
Iberia
Wed 23/906:15
LHR
-
GRB
2 stops22h 52m
Iberia
Deal found 30/4£639

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 30 April 2026.

Round-trip from

£548

One-way from

£238

Popular in

June

Cheapest in

January

Average price

£694
Scandinavian Airlines
  • Scandinavian Airlines
  • 27/10-3/11
  • 2 total stops
  • 30h 45m total
  • Wisconsin to London
Search Deals
British Airways
  • British Airways
  • 28/7
  • 1 total stop
  • 14h 56m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 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 13/9

17:50-07:40

Nonstop7h 50m

London Heathrow

Tue 22/9

10:20-17:50

1 stop13h 30m

£636

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 17/8

18:15-08:30

Nonstop8h 15m

London Heathrow

Fri 28/8

07:25-14:00

1 stop12h 35m

£636

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 29/9

17:50-07:40

Nonstop7h 50m

London Heathrow

Fri 23/10

07:30-17:50

1 stop16h 20m

£636

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 7/9

18:15-08:05

Nonstop7h 50m

London Heathrow

Wed 16/9

10:20-17:50

1 stop13h 30m

£636

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 11/5

16:25-06:45

Nonstop8h 20m

London Heathrow

Fri 18/9

08:40-15:55

1 stop13h 15m

£637

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 19/8

14:40-13:05

1 stop16h 25m

London Heathrow

Wed 26/8

06:30-16:36

2 stops16h 06m

£650

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 16/8

16:30-06:45

Nonstop8h 15m

London Heathrow

Sun 23/8

07:25-14:00

1 stop12h 35m

£674

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Wed 26/8

17:55-13:50

2 stops13h 55m

London Heathrow

Wed 2/9

06:30-17:04

2 stops16h 34m

£679

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 29/7

10:41-08:35

1 stop15h 54m

London Heathrow

Thu 13/8

14:10-17:15

Nonstop9h 05m

£680

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 14/8

16:30-06:45

Nonstop8h 15m

London Heathrow

Tue 18/8

17:50-12:00

1 stop24h 10m

£684

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 £349). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £798). 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 £636, Finnair can have you in London Heathrow Airport from Wisconsin in 7h 50m. 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 £349). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £798). 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
Hounslow
Luton
Gatwick
Ilford
Slough
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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John F Kennedy Intl to Gatwick flights
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San Francisco to Heathrow flights
O'Hare Intl to Heathrow flights
Newark to Stansted flights
Seattle to Heathrow flights
Boston to Gatwick flights
Dallas/Fort Worth to Heathrow flights
Newark to Luton flights
Orlando to Heathrow flights
Atlanta to Heathrow flights
Hobby to Heathrow flights
Los Angeles to Gatwick flights
Miami to Heathrow flights
Dulles Intl to Gatwick flights
Los Angeles to Stansted flights
Boston to London City flights
Denver to Heathrow flights
Reagan-National to Heathrow flights
Los Angeles to London City flights
Dulles Intl to London City flights
Boston to Stansted flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Orlando to Gatwick flights
O'Hare Intl to Gatwick flights
Philadelphia to Heathrow flights
San Francisco to London City flights
O'Hare Intl to Stansted flights
San Francisco to Gatwick flights
George Bush Intcntl to Heathrow flights
LaGuardia to Stansted flights
O'Hare Intl to London City flights
Seattle to Gatwick flights
San Francisco to Stansted flights
Detroit to Heathrow flights
Minneapolis to Heathrow 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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