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Heathrow

$314+ Cheap flights from Wisconsin to Heathrow (LHR)

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$651
(American Airlines)

One-way from

$314
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$1,157
From Wisconsin to London Heathrow
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One-way flight from Wisconsin to London Heathrow
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Highest demand for flights based on searches. 7% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/93:47 pmMKE - LHR
1 stop11h 18mAmerican Airlines
Fri 9/191:10 pmLHR - MKE
1 stop12h 50mAmerican Airlines
Deal found 6/12$651
This Ovago deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:35 pmGRB - LHR
1 stop11h 55mBritish Airways
Tue 9/307:25 pmLHR - GRB
2 stops28h 31mBritish Airways
Deal found 6/12$657
This Priceline deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:38 pmMKE - LHR
2 stops19h 12mBritish Airways
Fri 9/191:10 pmLHR - MKE
1 stop11h 24mBritish Airways
Deal found 6/12$665
This Booking.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:15 pmORD - LHR
1 stop12h 20mScandinavian Airlines
Tue 9/29:05 pmLHR - ORD
2 stops49h 05mScandinavian Airlines
Deal found 6/12$669
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:25 pmORD - LHR
1 stop10h 30mIcelandair
Thu 8/281:05 pmLHR - ORD
1 stop11h 10mIcelandair
Deal found 6/10$671
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/43:14 pmORD - LHR
1 stop10h 36mIberia
Wed 8/139:15 amLHR - ORD
Nonstop8h 40mIberia
Deal found 6/12$672
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/209:50 pmORD - LHR
1 stop27h 50mUnited Airlines
Tue 7/295:40 pmLHR - ORD
1 stop31h 49mUnited Airlines
Deal found 6/10$673
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:25 amMSP - LHR
2 stops20h 30mScandinavian Airlines
Tue 11/186:40 amLHR - MSP
2 stops19h 32mScandinavian Airlines
Deal found 6/11$674
This SWISS deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:05 pmORD - LHR
2 stops20h 20mSWISS
Fri 11/148:55 amLHR - ORD
1 stop13h 20mSWISS
Deal found 6/12$677
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/610:40 amORD - LHR
1 stop13h 50mAir Canada
Thu 8/145:40 pmLHR - ORD
2 stops27h 15mAir Canada
Deal found 6/11$681
This Gotogate deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:30 pmMSP - LHR
1 stop18h 50mIcelandair
Tue 12/98:40 pmLHR - MSP
1 stop26h 45mIcelandair
Deal found 6/10$683
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/211:26 pmORD - LHR
1 stop11h 49mDelta
Thu 7/319:40 amLHR - ORD
1 stop14h 31mDelta
Deal found 6/10$689

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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 9/9

3:47 pm-9:05 am

1 stop11h 18m

London Heathrow

Fri 9/19

1:10 pm-8:00 pm

1 stop12h 50m

$651

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 9/24

4:35 pm-10:30 am

1 stop11h 55m

London Heathrow

Tue 9/30

7:25 pm-5:56 pm

2 stops28h 31m

$657

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 9/9

4:38 pm-5:50 pm

2 stops19h 12m

London Heathrow

Fri 9/19

1:10 pm-6:34 pm

1 stop11h 24m

$665

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 8/15

7:15 pm-1:35 pm

1 stop12h 20m

London Heathrow

Tue 9/2

9:05 pm-4:10 pm

2 stops49h 05m

$669

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 8/22

7:25 pm-11:55 am

1 stop10h 30m

London Heathrow

Thu 8/28

1:05 pm-6:15 pm

1 stop11h 10m

$671

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 8/4

3:14 pm-7:50 am

1 stop10h 36m

London Heathrow

Wed 8/13

9:15 am-11:55 am

Nonstop8h 40m

$672

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 7/20

9:50 pm-7:40 am

1 stop27h 50m

London Heathrow

Tue 7/29

5:40 pm-7:29 pm

1 stop31h 49m

$673

MinneapolisLondon

MSP - LHR

MSPLHR

Minneapolis St Paul

Tue 11/11

10:25 am-12:55 pm

2 stops20h 30m

London Heathrow

Tue 11/18

6:40 am-8:12 pm

2 stops19h 32m

$674

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/2

7:05 pm-4:40 pm

2 stops15h 35m

London Heathrow

Tue 11/11

6:00 am-4:15 pm

1 stop16h 15m

$677

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 8/6

10:40 am-6:30 am

1 stop13h 50m

London Heathrow

Thu 8/14

5:40 pm-2:55 pm

2 stops27h 15m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 round-trip 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, November is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of $661). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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.

What is the cheapest time of day to fly from WI to LHR?

Find hourly flight availability from Wisconsin to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Wisconsin to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 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. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

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?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $379. Users have also found prices from $380 and $389 on British Airways and Iberia, respectively.

  • What are the most popular routes from Wisconsin to London Heathrow Airport?

    The most popular route from Wisconsin to London Heathrow Airport is Chicago O'Hare Intl - London Heathrow. You may also consider Minneapolis St Paul - London Heathrow or Milwaukee-Mitchell - London Heathrow.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of $661). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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

Traveling to a place near Wisconsin?

Book flights to Wisconsin if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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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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Boston to London City flights
Los Angeles to London City flights
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Los Angeles to Gatwick flights
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Dallas/Fort Worth to Gatwick flights
Seattle to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Detroit to Heathrow flights
O'Hare Intl to London City flights
Newark to Stansted flights
George Bush Intcntl to Heathrow flights
Sky Harbor Intl to Heathrow flights
San Francisco to London City flights
Boston to Stansted flights
Portland to Heathrow flights
Seattle to London City flights
Newark to Luton flights
Charlotte to Heathrow flights
Austin to Heathrow flights

Top 6 airlines flying from Wisconsin to Heathrow

Discover the top 6 airlines that operate flights from Wisconsin to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$555Average$738FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$613Average$1,061FlexibilityNo cancel feeOn-time71%
DeltaCheapest$613Average$953FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$646Average$897FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$695Average$830FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$703Average$927FlexibilityNo cancel feeOn-time72%

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