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Cheap flights from Wisconsin to London Heathrow Airport from £191

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
21 Jul — 28 Jul1
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 21 June 2026.

Sun 18/1010:00
ATW
-
LHR
1 stop19h 55m
United Airlines
Tue 20/1006:50
LHR
-
ATW
2 stops18h 17m
United Airlines
Deal found 21/6£556
Mon 7/1208:20
ATW
-
LHR
1 stop21h 40m
United Airlines
Wed 9/1211:05
LHR
-
ATW
2 stops34h 05m
United Airlines
Deal found 19/6£557
Sun 6/1215:00
CWA
-
LHR
1 stop15h 00m
United Airlines
Tue 8/1211:05
LHR
-
CWA
2 stops41h 37m
United Airlines
Deal found 18/6£564
Mon 19/1014:41
ATW
-
LHR
2 stops13h 34m
United Airlines
Wed 21/1007:45
LHR
-
ATW
2 stops21h 13m
United Airlines
Deal found 21/6£576
Wed 14/1016:49
MKE
-
LHR
1 stop10h 16m
British Airways
Tue 20/1007:50
LHR
-
MKE
2 stops17h 50m
British Airways
Deal found 19/6£642
Sun 8/1118:18
MKE
-
LHR
2 stops15h 32m
Lufthansa
Sat 14/1107:40
LHR
-
MKE
2 stops19h 15m
Lufthansa
Deal found 21/6£649
Tue 22/916:04
GRB
-
LHR
1 stop14h 11m
Iberia
Tue 13/1006:15
LHR
-
GRB
2 stops19h 33m
Iberia
Deal found 20/6£649
Wed 14/1018:32
MKE
-
LHR
2 stops15h 08m
Lufthansa
Tue 20/1010:50
LHR
-
MKE
2 stops18h 09m
Lufthansa
Deal found 19/6£650
Tue 22/920:14
MKE
-
LHR
1 stop10h 01m
Iberia
Tue 29/907:50
LHR
-
MKE
2 stops18h 13m
Iberia
Deal found 19/6£651
Tue 27/1013:11
MSN
-
LHR
1 stop14h 24m
Iberia
Wed 4/1107:35
LHR
-
MSN
2 stops18h 07m
Iberia
Deal found 18/6£651
Tue 29/918:31
ATW
-
LHR
1 stop11h 44m
Iberia
Tue 13/1006:15
LHR
-
ATW
2 stops17h 27m
Iberia
Deal found 18/6£651
Sat 19/918:31
ATW
-
LHR
1 stop31h 09m
Iberia
Mon 28/919:25
LHR
-
ATW
2 stops28h 36m
Iberia
Deal found 21/6£652

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 21 June 2026.

Round-trip from

£556

One-way from

£191

Popular in

June

Cheapest in

January

Average price

£948
United Airlines
  • United Airlines
  • 18/10-20/10
  • 3 total stops
  • 38h 12m total
  • Wisconsin to London
Search Deals
17/7
  • 17/7
  • 2 total stops
  • 16h 50m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£130 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 June 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 21 June 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

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

£556

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Sun 6/12

15:00-12:00

1 stop15h 00m

London Heathrow

Tue 8/12

11:05-22:42

2 stops41h 37m

£564

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 13/9

13:17-06:45

1 stop11h 28m

London Heathrow

Wed 23/9

06:50-21:04

2 stops20h 14m

£652

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 17/9

06:00-07:15

1 stop19h 15m

London Heathrow

Tue 22/9

06:50-15:11

2 stops14h 21m

£652

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 22/9

11:45-08:20

1 stop14h 35m

London Heathrow

Tue 29/9

06:50-15:11

2 stops14h 21m

£652

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Thu 5/11

09:50-05:55

1 stop14h 05m

London Heathrow

Thu 12/11

06:50-23:02

2 stops22h 12m

£652

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

£660

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 22/9

11:02-07:10

1 stop14h 08m

London Heathrow

Tue 13/10

09:55-20:37

2 stops16h 42m

£661

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Wed 30/9

16:19-13:05

1 stop14h 46m

London Heathrow

Thu 8/10

06:30-21:35

2 stops21h 05m

£661

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

05:30-07:15

1 stop19h 45m

London Heathrow

Fri 2/10

08:40-21:35

2 stops18h 55m

£662

Flights are sorted by cheapest return flights first.

Deals found on 21/6

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 £429). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £817). 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 £663, United Airlines can have you in London Heathrow Airport from Wisconsin in 10h 31m. Wisconsin and London Heathrow Airport are separated by a distance of 3976 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 £429). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £817). 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
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Guildford
Romford
Ipswich

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.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
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Newark to Gatwick flights
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LaGuardia to Gatwick flights
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Baltimore to Heathrow flights
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O'Hare Intl to Heathrow flights
Seattle to Heathrow flights
Boston to Gatwick flights
Orlando to Heathrow flights
LaGuardia to Stansted flights
Newark to London City flights
Atlanta to Heathrow flights
Miami to Heathrow flights
Hobby to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Los Angeles to Gatwick flights
Denver to Heathrow flights
Dulles Intl to London City flights
Boston to London City flights
Los Angeles to Stansted flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to Gatwick flights
Boston to Stansted flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
San Francisco to London City flights
San Francisco to Stansted flights
Sky Harbor Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Orlando to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Stansted flights
Charlotte 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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