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Cheap flights from Wisconsin to London Heathrow Airport from £210

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
6 Jul — 13 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 6 June 2026.

Tue 8/912:26
GRB
-
LHR
1 stop13h 39m
Iberia
Tue 24/1107:30
LHR
-
GRB
2 stops17h 52m
Iberia
Deal found 5/6£643
Wed 21/1020:16
MKE
-
LHR
1 stop9h 59m
Iberia
Fri 30/1007:30
LHR
-
MKE
2 stops17h 10m
Iberia
Deal found 1/6£643
Wed 9/909:40
MSN
-
LHR
1 stop16h 00m
Iberia
Tue 22/906:15
LHR
-
MSN
2 stops24h 02m
Iberia
Deal found 5/6£643
Sun 4/1011:36
ATW
-
LHR
1 stop18h 39m
Iberia
Wed 7/1006:15
LHR
-
ATW
2 stops22h 53m
Iberia
Deal found 5/6£643
Wed 28/1016:49
MKE
-
LHR
1 stop10h 46m
Iberia
Thu 5/1107:30
LHR
-
MKE
2 stops16h 13m
Iberia
Deal found 2/6£644
Tue 22/913:17
GRB
-
LHR
1 stop11h 28m
Lufthansa
Tue 13/1009:00
LHR
-
GRB
2 stops20h 19m
Lufthansa
Deal found 1/6£646
Sun 27/916:04
GRB
-
LHR
1 stop12h 46m
Iberia
Tue 29/920:00
LHR
-
GRB
2 stops29h 56m
Iberia
Deal found 5/6£651
Wed 9/912:56
MSN
-
LHR
1 stop12h 44m
Iberia
Mon 21/920:00
LHR
-
MSN
2 stops34h 17m
Iberia
Deal found 5/6£651
Sun 27/918:31
ATW
-
LHR
1 stop11h 44m
Iberia
Tue 29/920:00
LHR
-
ATW
2 stops28h 01m
Iberia
Deal found 5/6£651
Sun 4/1014:48
MKE
-
LHR
1 stop14h 02m
Iberia
Mon 12/1010:50
LHR
-
MKE
2 stops36h 50m
Iberia
Deal found 3/6£652
Wed 9/910:50
GRB
-
LHR
1 stop14h 20m
Virgin Atlantic
Wed 25/1111:45
LHR
-
GRB
2 stops14h 52m
Virgin Atlantic
Deal found 1/6£654
Tue 15/907:00
GRB
-
LHR
1 stop18h 10m
Delta
Fri 2/1008:40
LHR
-
GRB
2 stops19h 49m
Delta
Deal found 2/6£654

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 6 June 2026.

Round-trip from

£643

One-way from

£210

Popular in

June

Cheapest in

January

Average price

£934
Iberia
  • Iberia
  • 8/9-24/11
  • 3 total stops
  • 31h 31m total
  • Wisconsin to London
Search Deals
Icelandair
  • Icelandair
  • 24/7
  • 1 total stop
  • 10h 25m 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 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 6 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

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/9

10:50-07:10

1 stop14h 20m

London Heathrow

Wed 25/11

11:45-20:37

2 stops14h 52m

£654

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Mon 14/9

07:00-07:10

1 stop18h 10m

London Heathrow

Thu 1/10

08:40-20:27

2 stops17h 47m

£654

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

05:30-06:25

1 stop18h 55m

London Heathrow

Fri 2/10

06:30-15:36

2 stops15h 06m

£654

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

07:00-07:10

1 stop18h 10m

London Heathrow

Fri 2/10

08:40-22:29

2 stops19h 49m

£654

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

£654

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 23/9

12:02-10:50

1 stop16h 48m

London Heathrow

Wed 30/9

07:50-00:20

2 stops22h 30m

£657

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 22/9

07:00-08:50

2 stops19h 50m

London Heathrow

Tue 13/10

08:40-20:37

2 stops17h 57m

£657

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 27/9

08:01-07:10

2 stops17h 09m

London Heathrow

Tue 29/9

09:55-20:10

2 stops16h 15m

£657

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Wed 21/10

11:18-12:15

1 stop18h 57m

London Heathrow

Tue 27/10

11:40-23:19

2 stops16h 39m

£660

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Mon 30/11

16:15-16:05

2 stops17h 50m

London Heathrow

Wed 9/12

06:30-21:12

2 stops20h 42m

£661

Flights are sorted by cheapest return flights first.

Deals found on 2/6

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 £654, Virgin Atlantic can have you in London Heathrow Airport from Wisconsin in 14h 20m. 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 £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
Croydon
Ilford
Slough
Northampton
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Romford
Guildford
Poole

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

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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