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Cheap flights from Wisconsin to London Heathrow Airport from £177

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 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
17 1월 — 24 1월1
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 18 12월 2025.

화 30/1218:30ORD - LHR
1 stop10h 20mIcelandair
토 31/112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 16/12£419
월 29/1218:30ORD - LHR
1 stop19h 00mIcelandair
월 12/112:15LHR - ORD
1 stop35h 05mIcelandair
Deal found 16/12£427
수 31/1213:24ORD - LHR
1 stop11h 16mAustrian Airlines
금 9/116:20LHR - ORD
1 stop32h 17mAustrian Airlines
Deal found 16/12£452
월 29/1215:55ORD - LHR
2 stops22h 40mMultiple Airlines
월 12/120:05LHR - ORD
1 stop22h 40mMultiple Airlines
Deal found 16/12£465
수 31/1213:24ORD - LHR
1 stop11h 16mAustrian Airlines
목 8/112:05LHR - ORD
1 stop12h 32mAustrian Airlines
Deal found 14/12£473
수 31/1216:10ORD - LHR
1 stop18h 10mSWISS
일 11/120:05LHR - ORD
1 stop22h 40mSWISS
Deal found 16/12£479
수 31/1217:50ORD - LHR
Nonstop8h 05mUnited Airlines
금 9/107:25LHR - ORD
Nonstop9h 20mUnited Airlines
Deal found 14/12£479
수 31/1216:10ORD - LHR
1 stop19h 40mSWISS
수 7/120:05LHR - ORD
2 stops48h 05mSWISS
Deal found 17/12£481
화 30/1207:05ORD - LHR
1 stop18h 05mUnited Airlines
금 9/110:25LHR - ORD
Nonstop9h 20mUnited Airlines
Deal found 15/12£482
수 31/1215:46MSN - LHR
2 stops13h 04mUnited Airlines
목 8/107:40LHR - MSN
1 stop13h 12mUnited Airlines
Deal found 16/12£548
수 24/1212:12ATW - LHR
1 stop12h 53mKLM
수 28/106:30LHR - ATW
2 stops15h 10mKLM
Deal found 16/12£593
수 24/1211:00ATW - LHR
2 stops18h 40mDelta
수 28/111:45LHR - ATW
2 stops15h 04mDelta
Deal found 16/12£597

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 18 12월 2025.

Round-trip from

£408

One-way from

£177

Popular in

June

Cheapest in

September

Average price

£794
Icelandair
  • Icelandair
  • 18/3-24/3
  • 2 total stops
  • 21h 25m total
  • Wisconsin to London
Search Deals
WestJet
  • WestJet
  • 18/1
  • 2 total stops
  • 18h 35m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 18 12월 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

목 12/2

19:20-16:00

1 stop14h 40m

London Heathrow

목 19/3

06:40-17:45

1 stop16h 05m

£437

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

일 1/2

19:10-19:55

2 stops18h 45m

London Heathrow

목 5/2

19:30-16:45

1 stop27h 15m

£442

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

금 23/1

19:20-16:25

2 stops15h 05m

London Heathrow

화 27/1

19:50-16:45

2 stops26h 55m

£443

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

일 15/2

19:10-16:00

1 stop14h 50m

London Heathrow

토 14/3

06:40-17:45

1 stop16h 05m

£444

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

수 14/1

12:32-05:55

1 stop11h 23m

London Heathrow

수 21/1

11:10-23:44

2 stops18h 34m

£452

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

화 13/1

11:30-13:00

2 stops19h 30m

London Heathrow

화 20/1

06:35-21:59

2 stops21h 24m

£458

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

금 6/3

19:10-09:35

2 stops32h 25m

London Heathrow

금 13/3

07:05-17:55

2 stops15h 50m

£463

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

일 11/1

21:05-11:15

Nonstop8h 10m

London Heathrow

수 21/1

09:00-16:20

1 stop13h 20m

£464

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

수 14/1

15:45-05:55

Nonstop8h 10m

London Heathrow

금 30/1

11:10-18:25

1 stop13h 15m

£464

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

화 27/1

15:45-05:55

Nonstop8h 10m

London Heathrow

금 27/2

09:00-16:20

1 stop13h 20m

£464

Flights are sorted by cheapest return flights first.

Deals found on 15/12

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 £417). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £828). 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 £452, Scandinavian Airlines can have you in London Heathrow Airport from Wisconsin in 11h 23m. Wisconsin and London Heathrow Airport are separated by a distance of 3940 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 £417). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of £828). 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
Slough
Hounslow
Northampton
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Hayes
Watford
Crawley
Swindon
Winchester
Bedford
Romford
Chichester
Eastbourne

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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Dulles Intl to London City flights
Los Angeles to London City flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
Minneapolis to Heathrow flights
Boston to Stansted flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
San Francisco to Gatwick flights
Austin to Heathrow flights
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San Francisco to London City flights
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Los Angeles to Stansted 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?

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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.

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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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