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Cheap flights from Wisconsin to London Heathrow Airport from £170

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
31 Aug — 7 Sep1
1 adult

Cheap flight deals from Wisconsin to Heathrow

Keep the following information in mind while searching for Wisconsin to Heathrow flight deals. Data was last updated 26 August 2025.

Round-trip from

£373

One-way from

£170

Popular in

December

Cheapest in

September

Average price

£625
Icelandair
  • Icelandair
  • 20/9-9/11
  • 2 total stops
  • 21h 35m total
  • Wisconsin to London
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WestJet
  • WestJet
  • 26/10
  • 1 total stop
  • 17h 30m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Wisconsin to Heathrow

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 26 August 2025.

Sat 20/919:25ORD - LHR
1 stop10h 30mIcelandair
Sun 9/1112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 25/8£373
Fri 7/1119:20ORD - LHR
2 stops15h 05mScandinavian Airlines
Thu 13/1107:05LHR - ORD
2 stops15h 40mScandinavian Airlines
Deal found 24/8£374
Mon 22/919:25ORD - LHR
1 stop10h 30mIcelandair
Tue 21/1021:25LHR - ORD
1 stop26h 50mIcelandair
Deal found 24/8£374
Mon 27/1020:20ORD - LHR
1 stop32h 00mScandinavian Airlines
Sun 9/1118:40LHR - ORD
1 stop28h 05mScandinavian Airlines
Deal found 24/8£375
Fri 17/1019:25ORD - LHR
1 stop10h 30mIcelandair
Sun 26/1020:35LHR - ORD
1 stop26h 45mIcelandair
Deal found 25/8£376
Sun 7/919:25ORD - LHR
1 stop10h 30mIcelandair
Fri 19/913:05LHR - ORD
1 stop14h 10mIcelandair
Deal found 25/8£377
Mon 8/919:25ORD - LHR
1 stop10h 30mIcelandair
Tue 16/921:25LHR - ORD
1 stop26h 50mIcelandair
Deal found 24/8£377
Mon 8/919:25ORD - LHR
1 stop10h 30mIcelandair
Mon 15/921:25LHR - ORD
1 stop26h 50mIcelandair
Deal found 24/8£378
Thu 11/922:15ORD - LHR
1 stop16h 05mIcelandair
Thu 18/921:25LHR - ORD
1 stop29h 50mIcelandair
Deal found 24/8£379
Tue 9/919:25ORD - LHR
1 stop10h 30mIcelandair
Wed 17/913:05LHR - ORD
1 stop11h 10mIcelandair
Deal found 24/8£379
Wed 3/922:35ORD - LHR
Nonstop7h 40mIberia
Wed 17/920:00LHR - ORD
1 stop28h 50mIberia
Deal found 25/8£380
Thu 6/1118:30ORD - LHR
1 stop10h 20mIcelandair
Tue 11/1112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 25/8£381

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 26 August 2025.
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 23/9

19:25-11:55

1 stop10h 30m

London Heathrow

Tue 30/9

21:25-18:15

1 stop26h 50m

£374

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 5/9

22:15-11:55

1 stop31h 40m

London Heathrow

Wed 10/9

21:25-18:15

1 stop26h 50m

£382

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 8/9

13:25-06:25

1 stop11h 00m

London Heathrow

Tue 16/9

06:15-15:00

1 stop14h 45m

£382

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 24/9

15:24-07:50

1 stop10h 26m

London Heathrow

Wed 1/10

20:00-14:15

1 stop24h 15m

£383

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 26/11

13:09-06:25

1 stop11h 16m

London Heathrow

Thu 4/12

08:55-15:10

1 stop12h 15m

£385

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 23/11

14:30-08:45

1 stop12h 15m

London Heathrow

Thu 4/12

09:00-15:10

1 stop12h 10m

£385

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 26/11

14:30-08:45

1 stop12h 15m

London Heathrow

Wed 3/12

08:55-15:10

1 stop12h 15m

£385

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 8/9

13:30-06:45

1 stop11h 15m

London Heathrow

Tue 16/9

09:00-15:00

1 stop12h 00m

£385

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/10

13:26-06:45

1 stop11h 19m

London Heathrow

Wed 29/10

09:00-16:10

1 stop12h 10m

£385

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 10/9

13:25-07:15

1 stop11h 50m

London Heathrow

Fri 19/9

06:15-15:00

1 stop14h 45m

£385

Flights are sorted by cheapest return flights first.

Deals found on 25/8

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, January is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £112). Flying from Wisconsin to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

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 £383, Icelandair can have you in London Heathrow Airport from Wisconsin in 10h 26m. Wisconsin and London Heathrow Airport are separated by a distance of 3939 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Wisconsin to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £170 on WestJet. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £171 and Virgin Atlantic from £322 one-way.

  • 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, January is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of £112). Flying from Wisconsin to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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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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Minneapolis to Heathrow flights
San Francisco to Gatwick flights
O'Hare Intl to London City flights
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Boston to Stansted flights
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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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