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Cheap flights from Wisconsin to London Heathrow Airport from £189

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
16 Mar — 23 Mar1
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 14 February 2026.

Mon 4/519:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Tue 12/521:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 10/2£390
Thu 30/419:25
ORD
-
LHR
1 stop18h 55m
Icelandair
Mon 4/521:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 11/2£393
Mon 20/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Thu 30/413:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 10/2£394
Sun 19/422:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Thu 30/413:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 10/2£395
Thu 16/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Mon 20/413:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 10/2£396
Thu 23/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Tue 28/413:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Deal found 11/2£396
Tue 7/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Tue 21/421:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 11/2£397
Fri 17/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Mon 27/421:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 10/2£398
Mon 9/319:30
ORD
-
LHR
1 stop10h 20m
Icelandair
Fri 24/421:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 12/2£398
Thu 23/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Wed 29/421:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 10/2£400
Wed 8/419:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Tue 14/421:25
LHR
-
ORD
1 stop26h 50m
Icelandair
Deal found 13/2£401
Tue 10/305:19
GRB
-
LHR
1 stop21h 31m
KLM
Tue 17/306:30
LHR
-
GRB
2 stops15h 01m
KLM
Deal found 10/2£461

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 14 February 2026.

Round-trip from

£390

One-way from

£189

Popular in

June

Cheapest in

January

Average price

£514
Icelandair
  • Icelandair
  • 4/5-9/5
  • 2 total stops
  • 37h 20m total
  • Wisconsin to London
Search Deals
Delta
  • Delta
  • 20/5
  • 1 total stop
  • 17h 14m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£114 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 14 February 2026.
Use the filters below to find and compare flights from Wisconsin to London Heathrow Airport that are best for you.

Fly from

Wisconsin

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 3/3

17:50-07:55

Nonstop8h 05m

London Heathrow

Tue 10/3

06:50-13:10

1 stop11h 20m

£459

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 1/3

21:15-11:15

Nonstop8h 00m

London Heathrow

Tue 10/3

06:50-13:10

1 stop11h 20m

£460

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 10/3

22:05-11:15

Nonstop8h 10m

London Heathrow

Wed 18/3

06:50-13:10

1 stop11h 20m

£460

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 10/3

05:19-07:50

1 stop21h 31m

London Heathrow

Tue 17/3

06:30-16:31

2 stops15h 01m

£461

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 11/3

16:45-05:55

Nonstop8h 10m

London Heathrow

Mon 16/3

12:05-17:20

1 stop34h 15m

£461

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 10/3

11:12-11:40

2 stops19h 28m

London Heathrow

Tue 17/3

06:30-22:52

2 stops21h 22m

£468

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/4

17:55-07:40

Nonstop7h 45m

London Heathrow

Wed 29/4

07:30-17:50

1 stop16h 20m

£470

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 23/3

18:45-07:55

Nonstop8h 10m

London Heathrow

Tue 21/4

10:50-18:15

1 stop13h 25m

£470

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 4/3

08:30-05:55

1 stop15h 25m

London Heathrow

Tue 10/3

09:00-20:45

2 stops16h 45m

£471

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 24/3

14:10-07:50

1 stop12h 40m

London Heathrow

Wed 1/4

08:40-14:30

1 stop11h 50m

£475

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 60 results
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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 £409). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £813). 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 £459, United Airlines can have you in London Heathrow Airport from Wisconsin in 8h 05m. 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 £409). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £813). 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
Croydon
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

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