Find flights
Deals
When to book
FAQs

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
29 Jun — 6 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 30 May 2026.

Wed 11/1109:42
LSE
-
LHR
1 stop20h 18m
United Airlines
Fri 13/1106:50
LHR
-
LSE
2 stops17h 20m
United Airlines
Deal found 27/5£576
Sat 7/1110:45
MSN
-
LHR
1 stop13h 10m
United Airlines
Wed 11/1109:10
LHR
-
MSN
1 stop16h 46m
United Airlines
Deal found 28/5£585
Wed 7/1009:55
ATW
-
LHR
1 stop15h 45m
Iberia
Tue 13/1006:15
LHR
-
ATW
2 stops17h 27m
Iberia
Deal found 26/5£641
Wed 30/909:54
ATW
-
LHR
1 stop15h 46m
Iberia
Mon 9/1110:45
LHR
-
ATW
2 stops38h 26m
Iberia
Deal found 25/5£643
Mon 9/1113:11
GRB
-
LHR
1 stop12h 44m
United Airlines
Fri 13/1106:50
LHR
-
GRB
2 stops18h 15m
United Airlines
Deal found 29/5£645
Mon 9/1113:10
ATW
-
LHR
1 stop12h 45m
United Airlines
Fri 13/1106:50
LHR
-
ATW
2 stops18h 26m
United Airlines
Deal found 29/5£645
Tue 15/914:48
MKE
-
LHR
2 stops13h 47m
Iberia
Tue 22/906:15
LHR
-
MKE
2 stops19h 48m
Iberia
Deal found 27/5£648
Wed 9/913:18
MKE
-
LHR
1 stop11h 32m
British Airways
Tue 15/919:25
LHR
-
MKE
2 stops28h 56m
British Airways
Deal found 27/5£652
Tue 15/911:02
GRB
-
LHR
1 stop14h 08m
KLM
Fri 2/1006:30
LHR
-
GRB
2 stops15h 06m
KLM
Deal found 28/5£652
Wed 2/915:01
MKE
-
LHR
1 stop16h 14m
Virgin Atlantic
Wed 9/906:30
LHR
-
MKE
2 stops15h 37m
Virgin Atlantic
Deal found 26/5£652
Mon 7/915:45
MSN
-
LHR
1 stop11h 30m
Delta
Fri 25/908:40
LHR
-
MSN
2 stops15h 15m
Delta
Deal found 28/5£652
Sun 6/911:09
ATW
-
LHR
1 stop14h 01m
Delta
Fri 18/908:40
LHR
-
ATW
2 stops17h 56m
Delta
Deal found 27/5£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 30 May 2026.

Round-trip from

£576

One-way from

£241

Popular in

June

Cheapest in

January

Average price

£643
United Airlines
  • United Airlines
  • 11/11-13/11
  • 3 total stops
  • 55h 51m total
  • Wisconsin to London
Search Deals
British Airways
  • British Airways
  • 9/9
  • 1 total stop
  • 13h 47m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£96 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 30 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

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 11/11

06:15-12:00

1 stop23h 45m

London Heathrow

Fri 13/11

06:50-08:56

2 stops32h 06m

£576

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 9/11

13:11-07:55

1 stop12h 44m

London Heathrow

Fri 13/11

06:50-19:05

2 stops18h 15m

£645

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Mon 9/11

15:47-11:05

2 stops13h 18m

London Heathrow

Fri 13/11

06:50-16:50

2 stops16h 00m

£648

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

05:30-06:25

1 stop18h 55m

London Heathrow

Fri 2/10

06:30-15:32

2 stops15h 02m

£652

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 1/9

16:13-13:05

1 stop14h 52m

London Heathrow

Tue 15/9

06:30-22:29

2 stops21h 59m

£652

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Mon 19/10

12:06-13:05

1 stop18h 59m

London Heathrow

Fri 23/10

06:30-21:35

2 stops21h 05m

£652

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 6/9

11:09-07:10

1 stop14h 01m

London Heathrow

Fri 18/9

08:40-20:36

2 stops17h 56m

£652

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

07:00-08:50

2 stops19h 50m

London Heathrow

Fri 2/10

08:40-21:35

2 stops18h 55m

£655

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

18:29-11:15

1 stop10h 46m

London Heathrow

Fri 2/10

14:45-09:04

1 stop24h 19m

£665

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 13/9

10:05-07:40

1 stop15h 35m

London Heathrow

Wed 23/9

14:45-09:35

1 stop24h 50m

£666

Flights are sorted by cheapest return flights first.

Deals found on 26/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 £422). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £805). 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 £652, United Airlines can have you in London Heathrow Airport from Wisconsin in 18h 55m. Wisconsin and London Heathrow Airport are separated by a distance of 3833 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 £422). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £805). 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
Northampton
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Ipswich
Watford
Swindon
Romford
Guildford
Borehamwood

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Wisconsin to Heathrow

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.