How long is the flight from Wisconsin to London Heathrow Airport?

For as low as £661, United Airlines can have you in London Heathrow Airport from Wisconsin in 13h 45m. Wisconsin and London Heathrow Airport are separated by a distance of 3894 mi. This flight may include one or multiple stops.

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.

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).

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 Madison Truax Field - London Heathrow as they are the most popular.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Wisconsin to London Heathrow Airport as you normally would.

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.

£249+ Cheap Flights from Wisconsin to London Heathrow Airport

Cheap flight deals from Wisconsin to Heathrow

Enter your travel dates to find the best prices.

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Best

Last-minute

One-way

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 23 October 2026.

Wed 18/1107:00 -

1 stop18h 45m

Tue 24/1110:00 -

2 stops18h 29m

Deal found 18/10£681

Mon 23/1109:35 -

1 stop15h 30m

Tue 8/1211:30 -

2 stops18h 29m

Deal found 22/10£681

Tue 17/1107:00 -

1 stop18h 05m

Tue 24/1106:30 -

2 stops18h 37m

Deal found 18/10£681

Wed 18/1112:32 -

1 stop12h 33m

Wed 25/1108:40 -

2 stops18h 47m

Deal found 19/10£681

Mon 23/1109:35 -

2 stops16h 15m

Tue 8/1208:40 -

2 stops15h 22m

Deal found 22/10£692

Wed 18/1112:33 -

1 stop12h 32m

Tue 24/1111:20 -

1 stop12h 06m

Deal found 18/10£703

Tue 17/1113:24 -

1 stop11h 41m

Tue 24/1111:20 -

1 stop12h 15m

Deal found 18/10£703

Tue 3/1106:30 -

1 stop18h 35m

Wed 11/1110:00 -

2 stops17h 01m

Deal found 19/10£718

Wed 25/1110:59 -

1 stop14h 06m

Sat 5/1211:15 -

2 stops16h 09m

Deal found 19/10£718

Wed 11/1106:05 -

1 stop19h 00m

Wed 18/1110:00 -

2 stops18h 17m

Deal found 18/10£718

Thu 19/1108:10 -

1 stop16h 10m

Thu 26/1106:30 -

2 stops18h 56m

Deal found 20/10£719

Sun 15/1109:59 -

2 stops16h 06m

Sun 22/1106:30 -

2 stops18h 37m

Deal found 18/10£721

Best flights from Wisconsin to Heathrow
Discover carefully curated flight deals from Wisconsin to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Mon 1/314:48 -

2 stops13h 17m

Wed 3/309:00 -

2 stops17h 57m

Deal found 22/10£600

Wed 10/215:15 -

1 stop9h 50m

Tue 16/210:00 -

2 stops17h 09m

Deal found 20/10£662

Wed 14/411:00 -

1 stop20h 05m

Wed 21/409:55 -

2 stops16h 50m

Deal found 18/10£664

Wed 17/215:55 -

1 stop13h 45m

Sun 21/211:20 -

1 stop15h 49m

Deal found 18/10£722

Fri 27/1113:42 -

2 stops22h 48m

Sun 20/1206:40 -

2 stops20h 53m

Deal found 22/10£735

Sun 15/1105:30 -

1 stop20h 20m

Sun 22/1112:40 -

1 stop15h 37m

Deal found 18/10£740

Wed 11/1112:32 -

1 stop12h 33m

Wed 18/1112:40 -

1 stop15h 37m

Deal found 18/10£740

Wed 3/306:35 -

1 stop19h 20m

Fri 5/306:50 -

2 stops14h 10m

Deal found 22/10£603

Wed 18/1112:32 -

1 stop12h 33m

Wed 25/1108:40 -

2 stops18h 47m

Deal found 19/10£681

Wed 13/112:20 -

1 stop12h 05m

Thu 21/110:50 -

1 stop12h 55m

Deal found 19/10£713

Tue 20/410:25 -

1 stop14h 00m

Mon 26/412:25 -

1 stop15h 12m

Deal found 22/10£734

Wed 14/411:11 -

2 stops28h 29m

Wed 21/407:05 -

3 stops21h 29m

Deal found 18/10£742

Wed 10/209:20 -

2 stops15h 00m

Tue 16/209:00 -

2 stops15h 53m

Deal found 20/10£694

Tue 20/412:20 -

1 stop13h 05m

Mon 26/406:30 -

2 stops17h 34m

Deal found 18/10£701

Fri 4/1207:00 -

2 stops17h 50m

Fri 11/1208:55 -

1 stop19h 55m

Deal found 20/10£744

Tue 12/105:30 -

1 stop20h 20m

Sun 24/111:20 -

1 stop15h 17m

Deal found 22/10£759

Tue 20/406:45 -

2 stops18h 25m

Mon 26/411:30 -

2 stops15h 07m

Deal found 19/10£710

Thu 3/1210:18 -

1 stop19h 22m

Thu 10/1208:40 -

2 stops17h 48m

Deal found 19/10£718

Fri 4/1213:15 -

2 stops15h 35m

Fri 11/1207:30 -

2 stops17h 35m

Deal found 20/10£825

Tue 3/1106:30 -

1 stop18h 35m

Wed 11/1110:00 -

2 stops17h 01m

Deal found 19/10£718

Wed 11/1107:00 -

2 stops17h 20m

Wed 18/1110:00 -

2 stops18h 17m

Deal found 18/10£721

Thu 18/305:55 -

1 stop19h 30m

Thu 25/316:00 -

1 stop22h 22m

Deal found 18/10£722

Sat 19/1212:22 -

2 stops36h 48m

Sat 26/1211:05 -

2 stops36h 44m

Deal found 19/10£1,053

Mon 7/1212:36 -

1 stop12h 29m

Mon 14/1208:55 -

2 stops19h 55m

Deal found 22/10£724

Mon 2/1105:51 -

1 stop19h 59m

Wed 11/1108:40 -

2 stops16h 27m

Deal found 21/10£726

Wed 18/1105:30 -

2 stops28h 30m

Wed 25/1106:40 -

3 stops33h 48m

Deal found 22/10£1,577

Tue 12/107:00 -

1 stop18h 45m

Sun 24/106:30 -

2 stops15h 58m

Deal found 20/10£727

Wed 11/1109:35 -

2 stops16h 15m

Wed 18/1110:00 -

2 stops17h 01m

Deal found 22/10£729

Thu 19/1111:08 -

2 stops16h 17m

Thu 26/1106:30 -

2 stops17h 30m

Deal found 22/10£734

Mon 16/1109:50 -

1 stop14h 05m

Wed 18/1107:40 -

1 stop17h 28m

Deal found 18/10£1,575

Find flight deals from Wisconsin to Heathrow

Round-trip from	£584
One-way from	£249
Popular in	December
Cheapest in	January
Average price	£747

Lufthansa
3/3-5/3
4 total stops
37h 09m total
Wisconsin to London

Search Deals

Delta
20/4-31/12
2 total stops
17h 40m total
Wisconsin to London

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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 return flight

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Tue 20/4

12:30-13:05

1 stop18h 35m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

Fastest return journey

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Wed 17/3

15:15-07:05

1 stop10h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 22/3

17:00-10:30

2 stops12h 30m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Tue 23/3

07:00-08:05

2 stops20h 05m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Wed 17/3

05:55-07:50

1 stop20h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£253

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Wed 17/3

18:20-15:50

2 stops16h 30m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£263

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Sat 20/3

18:20-07:10

2 stops31h 50m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£267

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Thu 18/3

10:47-07:05

1 stop15h 18m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£287

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Fri 19/3

09:20-07:55

2 stops17h 35m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£287

AppletonLondon

ATW Appleton Intl - LHR London Heathrow

ATWLHR

Appleton Intl

Tue 17/11

08:30-12:50

2 stops46h 20m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£311

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 59 resultsSorted by cheapest first

...

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.

GRB-LHR

MKE-LHR

ATW-LHR

MSN-LHR

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

USWI-LHR

GRB-LHR

MKE-LHR

ATW-LHR

MSN-LHR

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 £535). Flying from Wisconsin to London Heathrow Airport in December is currently the most expensive (average of £1,112). 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?

Airfare is below average for this route at the moment.

Wisconsin to London Heathrow Airport flights typically cost between £629 and £891 in March.
The cheapest return price found within the last 5 days was £598 on United Airlines (1 Mar–3 Mar).

Related info for your journey

How long is the flight from Wisconsin to London Heathrow Airport?
For as low as £661, United Airlines can have you in London Heathrow Airport from Wisconsin in 13h 45m. Wisconsin and London Heathrow Airport are separated by a distance of 3894 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 Madison Truax Field - 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 £535). Flying from Wisconsin to London Heathrow Airport in December is currently the most expensive (average of £1,112). 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.

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

Cheapflights helps you search for flights from Wisconsin to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Wisconsin to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Wisconsin by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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.

Can Cheapflights notify me if prices for flights from Wisconsin to Heathrow become cheaper?

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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Cheap flights from Wisconsin to London Heathrow Airport from £249

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Wisconsin to Heathrow

Cheapest flights from Wisconsin to HeathrowExplore 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 23 October 2026.

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 23 October 2026.

Best flights from Wisconsin to HeathrowDiscover carefully curated flight deals from Wisconsin to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Discover carefully curated flight deals from Wisconsin to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Last-minute flights from Wisconsin to HeathrowDiscover last-minute flight deals from Wisconsin to Heathrow. Data last updated 23 October 2026 and is based on user searches.

Discover last-minute flight deals from Wisconsin to Heathrow. Data last updated 23 October 2026 and is based on user searches.

One-way flights from Wisconsin to HeathrowSearch for one-way flight options from Wisconsin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 23 October 2026.

Search for one-way flight options from Wisconsin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 23 October 2026.

Find flight deals from Wisconsin to Heathrow

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

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.

Cheapflights Insights

What is the cheapest month to book a flight from Wisconsin to London Heathrow Airport?

How much does it cost for a return flight from Wisconsin to London Heathrow Airport?

Airfare is below average for this route at the moment.

Wisconsin to London Heathrow Airport flights typically cost between £629 and £891 in March.The cheapest return price found within the last 5 days was £598 on United Airlines (1 Mar–3 Mar).

Related info for your journey

How long is the flight from Wisconsin to London Heathrow Airport?

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

Can I find deals for flights from Wisconsin to Heathrow that include hotel bookings?

How can I find direct flights from Wisconsin to Heathrow?

Can I find deals for business class flights from Wisconsin to Heathrow?

What is the cheapest month to book a flight from Wisconsin to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Wisconsin to Heathrow

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Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Wisconsin to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 23 October 2026.

Wisconsin and Heathrow flights

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

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Can Cheapflights notify me if prices for flights from Wisconsin to Heathrow become cheaper?

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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 23 October 2026.

Best flights from Wisconsin to Heathrow
Discover carefully curated flight deals from Wisconsin to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Last-minute flights from Wisconsin to Heathrow
Discover last-minute flight deals from Wisconsin to Heathrow. Data last updated 23 October 2026 and is based on user searches.

One-way flights from Wisconsin to Heathrow
Search for one-way flight options from Wisconsin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 23 October 2026.

Wisconsin to London Heathrow Airport flights typically cost between £629 and £891 in March.
The cheapest return price found within the last 5 days was £598 on United Airlines (1 Mar–3 Mar).