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Cheap flights from Wisconsin to London Heathrow Airport from £202

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
23 Apr — 30 Apr1
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 18 April 2025.

Round-trip from

£452

One-way from

£202

Popular in

December

Cheapest in

October

Average price

£606
Icelandair
  • Icelandair
  • 6/9-6/10
  • 2 total stops
  • 21h 40m total
  • Wisconsin to London
Search Deals
Icelandair
  • Icelandair
  • 4/5
  • 1 total stop
  • 31h 40m total
  • Wisconsin to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£45 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 18 April 2025.

Sat 6/919:25ORD - LHR
1 stop10h 30mIcelandair
Mon 6/1013:05LHR - ORD
1 stop11h 10mIcelandair
Deal found 17/4£452
Sat 27/921:12ORD - LHR
2 stops17h 48mMultiple Airlines
Sat 4/1020:05LHR - ORD
1 stop22h 05mMultiple Airlines
Deal found 17/4£452
Tue 14/1019:15ORD - LHR
1 stop16h 25mScandinavian Airlines
Mon 27/1006:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Deal found 18/4£454
Mon 4/816:00ORD - LHR
1 stop10h 35mAir Canada
Fri 15/809:30LHR - ORD
1 stop11h 21mAir Canada
Deal found 17/4£455
Tue 5/815:16ORD - LHR
1 stop10h 34mIberia
Wed 20/814:25LHR - ORD
Nonstop8h 35mIberia
Deal found 17/4£458
Tue 6/517:40ORD - LHR
Nonstop7h 40mBritish Airways
Tue 13/509:15LHR - ORD
Nonstop8h 30mBritish Airways
Deal found 17/4£459
Wed 7/518:35ORD - LHR
1 stop12h 25mSWISS
Wed 14/520:05LHR - ORD
1 stop25h 50mSWISS
Deal found 16/4£461
Mon 5/521:15ORD - LHR
1 stop10h 10mAer Lingus
Wed 7/507:40LHR - ORD
1 stop12h 20mAer Lingus
Deal found 17/4£467
Sat 3/510:50ORD - LHR
1 stop13h 40mJetBlue
Thu 8/511:55LHR - ORD
1 stop15h 59mJetBlue
Deal found 17/4£489
Tue 26/822:35ORD - LHR
Nonstop7h 40mAmerican Airlines
Tue 16/907:40LHR - ORD
1 stop14h 05mAmerican Airlines
Deal found 18/4£490
Sun 3/817:45ORD - LHR
Nonstop7h 35mFinnair
Thu 21/810:20LHR - ORD
1 stop13h 30mFinnair
Deal found 18/4£491
Tue 6/516:05ORD - LHR
Nonstop8h 15mUnited Airlines
Tue 13/512:10LHR - ORD
1 stop33h 45mUnited Airlines
Deal found 17/4£500

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 April 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

Sat 6/9

19:25-11:55

1 stop10h 30m

London Heathrow

Mon 6/10

13:05-18:15

1 stop11h 10m

£452

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 27/9

21:12-21:00

2 stops17h 48m

London Heathrow

Sat 4/10

20:05-12:10

1 stop22h 05m

£452

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 29/9

19:15-17:40

1 stop16h 25m

London Heathrow

Tue 14/10

10:20-16:10

1 stop11h 50m

£454

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 4/8

16:00-08:35

1 stop10h 35m

London Heathrow

Fri 15/8

09:30-14:51

1 stop11h 21m

£455

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 5/8

15:16-07:50

1 stop10h 34m

London Heathrow

Wed 20/8

14:25-17:00

Nonstop8h 35m

£458

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 6/5

17:40-07:20

Nonstop7h 40m

London Heathrow

Tue 13/5

09:15-11:45

Nonstop8h 30m

£459

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 7/5

18:35-13:00

1 stop12h 25m

London Heathrow

Wed 14/5

20:05-15:55

1 stop25h 50m

£461

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 5/5

21:15-13:25

1 stop10h 10m

London Heathrow

Wed 7/5

07:40-14:00

1 stop12h 20m

£467

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 3/5

10:50-06:30

1 stop13h 40m

London Heathrow

Sat 10/5

08:15-21:54

1 stop19h 39m

£489

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 13/5

18:05-08:20

Nonstop8h 15m

London Heathrow

Wed 21/5

14:10-17:15

Nonstop9h 05m

£489

Flights are sorted by cheapest return flights first.

Deals found on 17/4

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 18 April 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
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,581 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 £202 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £209 and JetBlue from £260 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
Hounslow
Deal
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Wembley
Northampton
Hayes
Crawley
Southend-on-Sea
Maidstone
Swindon
Ipswich
Southall
Ilford
Winchester
Folkestone

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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How does Cheapflights help users find flights from Wisconsin to Heathrow?

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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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