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Cheap flights from Wisconsin to London Heathrow Airport from £195

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
13 Jul — 20 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 13 June 2026.

Sun 6/1215:20
CWA
-
LHR
1 stop14h 40m
United Airlines
Tue 8/1211:05
LHR
-
CWA
2 stops41h 40m
United Airlines
Deal found 9/6£557
Tue 8/912:26
GRB
-
LHR
1 stop16h 04m
Iberia
Tue 24/1107:30
LHR
-
GRB
2 stops17h 52m
Iberia
Deal found 10/6£642
Tue 22/914:48
MKE
-
LHR
1 stop10h 52m
Iberia
Tue 29/906:15
LHR
-
MKE
2 stops19h 48m
Iberia
Deal found 10/6£642
Mon 14/911:36
ATW
-
LHR
1 stop17h 14m
Iberia
Mon 21/920:00
LHR
-
ATW
2 stops28h 01m
Iberia
Deal found 10/6£650
Tue 15/905:30
GRB
-
LHR
1 stop18h 55m
KLM
Fri 2/1006:30
LHR
-
GRB
2 stops15h 06m
KLM
Deal found 9/6£652
Mon 21/915:59
MKE
-
LHR
1 stop15h 06m
Delta
Fri 25/909:55
LHR
-
MKE
2 stops16h 15m
Delta
Deal found 11/6£652
Mon 30/1107:00
CWA
-
LHR
1 stop18h 05m
Delta
Wed 9/1206:30
LHR
-
CWA
2 stops20h 42m
Delta
Deal found 10/6£652
Tue 22/909:38
MKE
-
LHR
1 stop15h 32m
Delta
Tue 29/909:55
LHR
-
MKE
2 stops16h 15m
Delta
Deal found 12/6£653
Tue 15/914:48
MKE
-
LHR
1 stop10h 52m
Iberia
Wed 23/906:15
LHR
-
MKE
2 stops19h 48m
Iberia
Deal found 8/6£654
Mon 21/917:57
MSN
-
LHR
1 stop13h 08m
Delta
Fri 25/908:40
LHR
-
MSN
2 stops15h 15m
Delta
Deal found 8/6£654
Tue 15/907:00
GRB
-
LHR
2 stops19h 50m
Delta
Fri 2/1009:55
LHR
-
GRB
2 stops18h 34m
Delta
Deal found 10/6£656
Sun 13/920:27
GRB
-
LHR
1 stop9h 48m
British Airways
Wed 23/906:15
LHR
-
GRB
2 stops23h 58m
British Airways
Deal found 10/6£657

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 13 June 2026.

Round-trip from

£557

One-way from

£195

Popular in

June

Cheapest in

January

Average price

£936
United Airlines
  • United Airlines
  • 6/12-8/12
  • 3 total stops
  • 56h 20m total
  • Wisconsin to London
Search Deals
Icelandair
  • Icelandair
  • 25/7
  • 1 total stop
  • 10h 25m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£128 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 13 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

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Sun 6/12

15:20-12:00

1 stop14h 40m

London Heathrow

Tue 8/12

11:05-22:45

2 stops41h 40m

£557

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

£652

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Mon 30/11

07:00-07:05

1 stop18h 05m

London Heathrow

Wed 9/12

06:30-15:48

2 stops15h 18m

£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

£652

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

£653

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 22/9

09:38-07:10

1 stop15h 32m

London Heathrow

Tue 29/9

09:55-20:10

2 stops16h 15m

£653

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 22/9

12:48-10:20

2 stops15h 32m

London Heathrow

Thu 8/10

09:55-21:09

2 stops17h 14m

£657

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 22/9

14:48-06:50

1 stop10h 02m

London Heathrow

Thu 8/10

13:45-23:47

1 stop16h 02m

£667

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Tue 6/10

18:19-11:15

1 stop10h 56m

London Heathrow

Tue 13/10

14:45-23:19

1 stop14h 34m

£668

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 4/10

12:48-07:15

1 stop12h 27m

London Heathrow

Fri 16/10

12:50-20:08

1 stop13h 18m

£675

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 £424). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £807). 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 £668, United Airlines can have you in London Heathrow Airport from Wisconsin in 10h 56m. 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 £424). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £807). 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
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
Romford

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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Newark to Luton flights
Newark to Stansted flights
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Boston to London City flights
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LaGuardia to Stansted flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Boston to Stansted flights
Los Angeles to Gatwick flights
Denver to Heathrow flights
Philadelphia to Heathrow flights
Los Angeles to Stansted flights
Dulles Intl to London City flights
George Bush Intcntl to Heathrow flights
Baltimore to Gatwick flights
Los Angeles to London City flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
Seattle to Gatwick flights
Sky Harbor Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Charlotte to Heathrow flights
O'Hare Intl to Stansted flights
San Francisco to London City flights
Tampa to Heathrow 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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