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Cheap flights from Wisconsin to London Heathrow Airport from £229

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£479

One-way from

£229

Popular in

December

Cheapest in

February

Average price

£851
British Airways
  • British Airways
  • 19/8-29/8
  • 2 total stops
  • 25h 19m total
  • Wisconsin to London
Search Deals
1/8
  • 1/8
  • 3 total stops
  • 44h 10m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£42 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 June 2025
Search Deals

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 13 June 2025.

Tue 19/816:56MKE - LHR
1 stop11h 34mBritish Airways
Fri 29/812:15LHR - MKE
1 stop13h 45mBritish Airways
Deal found 12/6£479
Sun 10/818:35ATW - LHR
1 stop11h 40mAmerican Airlines
Thu 21/812:00LHR - ATW
1 stop15h 25mAmerican Airlines
Deal found 13/6£480
Wed 24/916:35GRB - LHR
1 stop11h 55mBritish Airways
Tue 30/919:25LHR - GRB
2 stops28h 31mBritish Airways
Deal found 12/6£484
Tue 26/819:15ORD - LHR
2 stops17h 35mScandinavian Airlines
Sat 6/910:20LHR - ORD
1 stop11h 50mScandinavian Airlines
Deal found 12/6£492
Fri 22/819:25ORD - LHR
1 stop10h 30mIcelandair
Thu 28/813:05LHR - ORD
1 stop11h 10mIcelandair
Deal found 10/6£494
Mon 4/815:14ORD - LHR
1 stop10h 36mIberia
Wed 13/809:15LHR - ORD
Nonstop8h 40mIberia
Deal found 12/6£495
Sun 20/721:50ORD - LHR
1 stop27h 50mUnited Airlines
Tue 29/717:40LHR - ORD
1 stop31h 49mUnited Airlines
Deal found 10/6£495
Tue 11/1110:25MSP - LHR
2 stops20h 30mScandinavian Airlines
Tue 18/1106:40LHR - MSP
2 stops19h 32mScandinavian Airlines
Deal found 11/6£496
Sun 2/1119:05ORD - LHR
2 stops15h 35mSWISS
Tue 11/1106:00LHR - ORD
1 stop16h 15mSWISS
Deal found 12/6£498
Wed 6/810:40ORD - LHR
1 stop13h 50mAir Canada
Thu 14/817:40LHR - ORD
2 stops27h 15mAir Canada
Deal found 11/6£501
Wed 1/1019:30MSP - LHR
1 stop18h 50mIcelandair
Wed 8/1021:25LHR - MSP
1 stop26h 55mIcelandair
Deal found 11/6£505
Tue 29/717:20ORD - LHR
1 stop9h 35mKLM
Wed 6/809:20LHR - ORD
1 stop13h 36mKLM
Deal found 12/6£506

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 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

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 19/8

16:56-10:30

1 stop11h 34m

London Heathrow

Fri 29/8

12:15-20:00

1 stop13h 45m

£479

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Sun 10/8

18:35-12:15

1 stop11h 40m

London Heathrow

Thu 21/8

12:00-21:25

1 stop15h 25m

£480

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 24/9

16:35-10:30

1 stop11h 55m

London Heathrow

Tue 30/9

19:25-17:56

2 stops28h 31m

£484

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 26/8

19:15-18:50

2 stops17h 35m

London Heathrow

Sat 6/9

10:20-16:10

1 stop11h 50m

£492

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 4/8

15:14-07:50

1 stop10h 36m

London Heathrow

Wed 13/8

09:15-11:55

Nonstop8h 40m

£495

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 20/7

16:05-06:20

Nonstop8h 15m

London Heathrow

Tue 29/7

14:10-17:20

Nonstop9h 10m

£496

MinneapolisLondon

MSP - LHR

MSPLHR

Minneapolis St Paul

Tue 11/11

10:25-12:55

2 stops20h 30m

London Heathrow

Tue 18/11

06:40-20:12

2 stops19h 32m

£496

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 2/11

19:05-16:40

2 stops15h 35m

London Heathrow

Tue 11/11

06:00-16:15

1 stop16h 15m

£498

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 28/7

07:04-06:30

2 stops17h 26m

London Heathrow

Tue 12/8

09:30-09:52

1 stop30h 22m

£501

MinneapolisLondon

MSP - LHR

MSPLHR

Minneapolis St Paul

Wed 1/10

19:30-11:55

1 stop10h 25m

London Heathrow

Wed 8/10

21:25-18:20

1 stop26h 55m

£505

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 13 June 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Wisconsin to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 £280 on British Airways. Other airlines that offer cheap prices include Iberia from £286 and Scandinavian Airlines from £288 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 Wisconsin?

Book flights to Wisconsin if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Swindon

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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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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