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

For as low as £682, United Airlines can have you in London Heathrow Airport from Wisconsin in 12h 05m. Wisconsin and London Heathrow Airport are separated by a distance of 3940 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 Milwaukee-Mitchell - 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.

£256+ Cheap Flights from Wisconsin to London Heathrow Airport

Cheap flight deals from Wisconsin to Heathrow

Enter your travel dates to find the best prices.

Cheapest

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 15 November 2026.

Sun 13/1209:55 -

2 stops15h 25m

Wed 23/1212:40 -

1 stop35h 43m

Deal found 13/11£670

Tue 8/1210:18 -

1 stop19h 22m

Tue 15/1208:40 -

2 stops17h 48m

Deal found 10/11£698

Wed 30/1209:53 -

1 stop15h 52m

Tue 26/106:30 -

2 stops17h 11m

Deal found 10/11£701

Fri 11/1207:45 -

1 stop16h 35m

Sun 13/1206:20 -

2 stops17h 42m

Deal found 10/11£726

Wed 2/1209:32 -

1 stop16h 13m

Wed 9/1211:45 -

2 stops15h 46m

Deal found 10/11£736

Tue 17/1110:53 -

2 stops13h 32m

Tue 24/1106:30 -

2 stops14h 49m

Deal found 10/11£739

Wed 2/1210:18 -

1 stop14h 07m

Thu 10/1208:55 -

2 stops17h 33m

Deal found 14/11£741

Wed 2/1205:20 -

1 stop19h 05m

Tue 15/1208:55 -

2 stops17h 33m

Deal found 13/11£741

Tue 29/1217:16 -

1 stop12h 24m

Tue 26/108:40 -

2 stops18h 10m

Deal found 10/11£748

Tue 29/1209:53 -

2 stops15h 27m

Tue 26/110:00 -

2 stops16h 50m

Deal found 11/11£751

Tue 29/1205:00 -

1 stop18h 55m

Tue 26/109:00 -

2 stops19h 18m

Deal found 13/11£762

Mon 28/1217:29 -

1 stop30h 26m

Tue 26/109:00 -

2 stops16h 48m

Deal found 10/11£766

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 15 November 2026.

Sun 28/219:00 -

1 stop30h 55m

Wed 3/306:50 -

2 stops22h 09m

Deal found 10/11£619

Wed 3/307:01 -

1 stop18h 44m

Fri 5/311:45 -

2 stops15h 21m

Deal found 12/11£680

Wed 14/416:00 -

1 stop12h 05m

Wed 21/411:45 -

2 stops17h 10m

Deal found 14/11£682

Wed 14/411:11 -

2 stops28h 29m

Wed 21/407:05 -

3 stops21h 29m

Deal found 11/11£711

Tue 20/410:25 -

1 stop14h 00m

Mon 26/412:25 -

1 stop15h 12m

Deal found 14/11£745

Tue 4/513:00 -

1 stop12h 10m

Tue 11/506:30 -

2 stops15h 37m

Deal found 13/11£682

Wed 24/211:26 -

1 stop12h 59m

Wed 3/309:50 -

1 stop15h 20m

Deal found 10/11£706

Sun 14/205:00 -

1 stop18h 55m

Thu 18/209:00 -

2 stops18h 21m

Deal found 14/11£707

Sun 14/214:40 -

1 stop11h 15m

Thu 18/206:50 -

2 stops20h 09m

Deal found 14/11£708

Tue 20/417:00 -

1 stop14h 05m

Mon 26/406:30 -

2 stops15h 24m

Deal found 15/11£720

Tue 20/412:20 -

1 stop18h 55m

Mon 26/406:30 -

2 stops16h 15m

Deal found 10/11£720

Sun 14/215:50 -

1 stop14h 10m

Thu 18/207:40 -

1 stop13h 23m

Deal found 14/11£735

Wed 2/1210:18 -

1 stop14h 07m

Thu 10/1208:55 -

2 stops17h 33m

Deal found 14/11£741

Wed 2/1206:24 -

1 stop18h 41m

Fri 11/1209:40 -

2 stops16h 42m

Deal found 11/11£763

Thu 3/1212:53 -

1 stop11h 32m

Wed 9/1211:45 -

2 stops15h 46m

Deal found 11/11£775

Tue 8/1212:53 -

1 stop11h 32m

Sun 13/1211:45 -

2 stops14h 37m

Deal found 11/11£775

Sun 29/1110:53 -

1 stop14h 12m

Mon 14/1211:20 -

1 stop12h 42m

Deal found 13/11£796

Find flight deals from Wisconsin to Heathrow

Round-trip from	£598
One-way from	£256
Popular in	December
Cheapest in	January
Average price	£738

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

Search Deals

Delta
20/4-31/12
1 total stop
18h 35m total
Wisconsin to London

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).

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 November 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

£256

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Mon 5/4

17:00-13:05

1 stop14h 05m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£256

Green BayLondon

GRB Green Bay Austin-Straubel - LHR London Heathrow

GRBLHR

Green Bay Austin-Straubel

Sun 21/3

07:00-07:45

1 stop19h 45m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£256

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 30/11

07:40-09:05

2 stops19h 25m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£361

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 30/11

09:35-07:45

1 stop16h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£386

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 30/11

10:53-07:05

1 stop14h 12m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£390

Fastest return journey

MilwaukeeLondon

MKE Milwaukee-Mitchell - LHR London Heathrow

MKELHR

Milwaukee-Mitchell

Mon 30/11

13:16-07:45

1 stop12h 29m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£393

MadisonLondon

MSN Madison Truax Field - LHR London Heathrow

MSNLHR

Madison Truax Field

Mon 4/1

11:26-11:40

1 stop18h 14m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£395

MadisonLondon

MSN Madison Truax Field - LHR London Heathrow

MSNLHR

Madison Truax Field

Tue 5/1

07:00-07:15

2 stops18h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£395

MadisonLondon

MSN Madison Truax Field - LHR London Heathrow

MSNLHR

Madison Truax Field

Wed 6/1

05:30-06:25

1 stop18h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£395

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 35 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

MSN-LHR

MKE-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

MSN-LHR

MKE-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 £549). Flying from Wisconsin to London Heathrow Airport in December is currently the most expensive (average of £1,217). 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.

Related info for your journey

How long is the flight from Wisconsin to London Heathrow Airport?
For as low as £682, United Airlines can have you in London Heathrow Airport from Wisconsin in 12h 05m. Wisconsin and London Heathrow Airport are separated by a distance of 3940 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 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 £549). Flying from Wisconsin to London Heathrow Airport in December is currently the most expensive (average of £1,217). 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 £256

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 15 November 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 15 November 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 15 November 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 15 November 2026.

Last-minute flights from Wisconsin to HeathrowDiscover last-minute flight deals from Wisconsin to Heathrow. Data last updated 15 November 2026 and is based on user searches.

Discover last-minute flight deals from Wisconsin to Heathrow. Data last updated 15 November 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 15 November 2026.

Search for one-way flight options from Wisconsin to Heathrow. Find affordable one-way fares based on user searches. Data last updated 15 November 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?

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

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Direct flights to England

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Search flights from Wisconsin to Heathrow by cabin class

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Other flights 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 15 November 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 15 November 2026.

Last-minute flights from Wisconsin to Heathrow
Discover last-minute flight deals from Wisconsin to Heathrow. Data last updated 15 November 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 15 November 2026.