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$284+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap 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 March 16, 2026.

This FlightHub deal was found by Cheapflights users on 3/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 pm
ORD
-
LHR
1 stop22h 55m
TAP AIR PORTUGAL
Tue 5/57:50 pm
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Deal found 3/11$583
This oojo deal was found by Cheapflights users on 3/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:05 pm
ORD
-
LHR
1 stop12h 40m
TAP AIR PORTUGAL
Sat 5/26:00 am
LHR
-
ORD
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 3/11$589
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:00 pm
ORD
-
LHR
1 stop22h 55m
TAP AIR PORTUGAL
Sat 4/188:00 am
LHR
-
ORD
1 stop14h 05m
TAP AIR PORTUGAL
Deal found 3/12$590
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sun 4/266:00 pm
ORD
-
LHR
1 stop12h 45m
TAP AIR PORTUGAL
Tue 5/57:50 pm
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Deal found 3/13$591
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Wed 4/296:00 pm
ORD
-
LHR
1 stop15h 35m
TAP AIR PORTUGAL
Wed 5/68:00 am
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 3/13$592
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Wed 4/226:00 pm
ORD
-
LHR
1 stop22h 55m
TAP AIR PORTUGAL
Tue 4/287:50 pm
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Deal found 3/13$593
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:20 pm
ORD
-
LHR
2 stops37h 15m
Scandinavian Airlines
Sat 11/146:40 am
LHR
-
ORD
1 stop16h 05m
Scandinavian Airlines
Deal found 3/11$594
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:15 pm
ORD
-
LHR
1 stop16h 25m
Scandinavian Airlines
Wed 4/226:40 am
LHR
-
ORD
1 stop15h 30m
Scandinavian Airlines
Deal found 3/12$595
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:05 pm
ORD
-
LHR
1 stop21h 55m
TAP AIR PORTUGAL
Wed 5/138:00 am
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 3/12$596
This Booking.com deal was found by Cheapflights users on 3/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:15 pm
ORD
-
LHR
2 stops31h 40m
Scandinavian Airlines
Sun 9/207:30 pm
LHR
-
ORD
1 stop26h 40m
Scandinavian Airlines
Deal found 3/11$597
This oojo deal was found by Cheapflights users on 3/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:20 pm
ORD
-
LHR
1 stop17h 10m
Scandinavian Airlines
Mon 11/305:30 pm
LHR
-
ORD
2 stops29h 15m
Scandinavian Airlines
Deal found 3/12$601
This Trip.com deal was found by Cheapflights users on 3/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 pm
MSP
-
LHR
1 stop20h 55m
Multiple Airlines
Thu 9/246:20 am
LHR
-
MSP
1 stop16h 40m
Multiple Airlines
Deal found 3/11$689

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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$583
(FlightHub)

One-way from

$284
(KLM)

Popular in

June

Cheapest in

January

Average price

$929
Provider with most accurate pricing for Milwaukee-Mitchell-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-London (LON) flights.
Search Deals
From Wisconsin to London Heathrow
Search Deals
One-way flight from Wisconsin to London Heathrow
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 16, 2026.
Use the filters below to find and compare flights from Wisconsin to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 3/29

10:25 pm-12:15 pm

Nonstop7h 50m

London Heathrow

Tue 4/7

2:45 pm-5:35 pm

Nonstop8h 50m

$740

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 8/11

6:20 pm-8:05 am

Nonstop7h 45m

London Heathrow

Wed 8/19

9:10 am-7:46 pm

1 stop16h 36m

$747

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 9/8

10:10 am-9:20 am

2 stops17h 10m

London Heathrow

Sun 9/13

9:05 pm-4:10 pm

2 stops25h 05m

$766

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 5/6

8:32 pm-1:05 pm

1 stop10h 33m

London Heathrow

Tue 5/12

9:55 am-8:14 pm

2 stops16h 19m

$772

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 8/23

7:30 am-6:45 am

1 stop17h 15m

London Heathrow

Tue 9/8

7:25 am-6:55 pm

2 stops17h 30m

$774

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Sat 9/5

2:45 pm-10:00 am

2 stops37h 15m

London Heathrow

Fri 9/18

6:50 am-2:53 pm

2 stops14h 03m

$782

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 8/10

9:15 pm-11:15 am

Nonstop8h 00m

London Heathrow

Wed 8/19

3:15 pm-6:15 pm

Nonstop9h 00m

$786

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Sat 3/28

5:44 pm-8:00 am

1 stop33h 16m

London Heathrow

Wed 4/8

9:30 am-11:49 pm

2 stops44h 19m

$788

AppletonLondon

ATW - LHR

ATWLHR

Appleton Intl

Tue 5/12

12:33 pm-9:00 am

1 stop14h 27m

London Heathrow

Wed 5/20

2:10 pm-11:05 pm

1 stop14h 55m

$803

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 4/5

9:30 pm-11:55 am

Nonstop8h 25m

London Heathrow

Sun 4/12

7:25 am-2:00 pm

1 stop12h 35m

$807

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 60 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of $534). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of $1,080). 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 to fly round-trip 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 $740, Finnair can have you in London Heathrow Airport from Wisconsin in 7h 50m. The distance from Wisconsin to London Heathrow Airport is about 3939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, October is the cheapest month in which you can book a flight from Wisconsin to London Heathrow Airport (average of $534). Flying from Wisconsin to London Heathrow Airport in June is currently the most expensive (average of $1,080). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Wisconsin to Heathrow

Discover the top 5 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$596Average$966FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$624Average$786FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$629Average$834FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$663Average$1,104FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$670Average$963FlexibilityNo cancel feeOn-time69%

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