£239 Cheap Flights from Milwaukee (MKE) to London (LHR)

View £239 flight on Wed, 19 Aug 2026Opens in a new window

Popular airlines from General Mitchell Intl. Airport (MKE) to Heathrow Airport (LHR)

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Cheap Flights from Milwaukee (MKE) to London (LHR)

Prices were available within the past 7 days and start at £239 for one-way flights and £640 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Sun, 16 Aug - Mon, 31 Aug
MKE
Milwaukee
LHR
London
£640 Return, found 1 day ago
£640
Return
found 1 day ago
Select KLM flight, departing Sun, 16 Aug from Milwaukee to London, returning Mon, 31 Aug, priced at £640 found 1 day ago
British Airways
Wed, 18 Nov - Tue, 24 Nov
MKE
Milwaukee
LHR
London
£640 Return, found 2 days ago
£640
Return
found 2 days ago
Select British Airways flight, departing Wed, 18 Nov from Milwaukee to London, returning Tue, 24 Nov, priced at £640 found 2 days ago
KLM
Wed, 16 Sept - Wed, 16 Dec
MKE
Milwaukee
LHR
London
£642 Return, found 4 days ago
£642
Return
found 4 days ago
Select KLM flight, departing Wed, 16 Sept from Milwaukee to London, returning Wed, 16 Dec, priced at £642 found 4 days ago
Air France
Wed, 18 Nov - Tue, 24 Nov
MKE
Milwaukee
LHR
London
£646 Return, found 2 days ago
£646
Return
found 2 days ago
Select Air France flight, departing Wed, 18 Nov from Milwaukee to London, returning Tue, 24 Nov, priced at £646 found 2 days ago
KLM
Sun, 16 Aug - Mon, 31 Aug
MKE
Milwaukee
LHR
London
£647 Return, found 1 day ago
£647
Return
found 1 day ago
Select KLM flight, departing Sun, 16 Aug from Milwaukee to London, returning Mon, 31 Aug, priced at £647 found 1 day ago
KLM
Sat, 22 Aug - Fri, 28 Aug
MKE
Milwaukee
LHR
London
£649 Return, found 4 days ago
£649
Return
found 4 days ago
Select KLM flight, departing Sat, 22 Aug from Milwaukee to London, returning Fri, 28 Aug, priced at £649 found 4 days ago
Air France
Sat, 22 Aug - Fri, 28 Aug
MKE
Milwaukee
LHR
London
£651 Return, found 4 days ago
£651
Return
found 4 days ago
Select Air France flight, departing Sat, 22 Aug from Milwaukee to London, returning Fri, 28 Aug, priced at £651 found 4 days ago
Iberia
Wed, 18 Nov - Tue, 24 Nov
MKE
Milwaukee
LHR
London
£653 Return, found 2 days ago
£653
Return
found 2 days ago
Select Iberia flight, departing Wed, 18 Nov from Milwaukee to London, returning Tue, 24 Nov, priced at £653 found 2 days ago
Air France
Sun, 16 Aug - Mon, 31 Aug
MKE
Milwaukee
LHR
London
£655 Return, found 1 day ago
£655
Return
found 1 day ago
Select Air France flight, departing Sun, 16 Aug from Milwaukee to London, returning Mon, 31 Aug, priced at £655 found 1 day ago
Virgin Atlantic
Sat, 22 Aug - Fri, 28 Aug
MKE
Milwaukee
LHR
London
£663 Return, found 4 days ago
£663
Return
found 4 days ago
Select Virgin Atlantic flight, departing Sat, 22 Aug from Milwaukee to London, returning Fri, 28 Aug, priced at £663 found 4 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £1,022
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £1,022

Frequently asked questions

What is the cheapest month to fly from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
February is typically the cheapest month to fly from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow), with average return fares of approximately £492. This is about 31% lower than the average price throughout the year. February often sees lower prices because it falls outside of peak holiday seasons, when travel demand tends to decrease. Other cheap months to fly from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) include March and September.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
Based on booking data from the past year, the best time to find a good deal on a return flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) is typically February or September, with average prices around £492. These months often offer a balance of lower fares and good availability, as they fall outside the peak summer travel season. February can be a quieter time to visit London, while September still offers pleasant weather as the summer crowds begin to thin.*Prices based on flights available on Expedia in the last year.
How many flights per day from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
There are approximately 51 connecting flights per day from Milwaukee, WI (MKE-General Mitchell Intl.) (MKE) to London (LHR-Heathrow) (LHR). Some common connection points include O'Hare Intl. (ORD), Logan Intl. (BOS), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
The earliest flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and British Airways. This is a seasonal service, active only in November. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) on a Monday, with around 57 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, United Airlines, and American Airlines. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) are in the afternoon, from 12pm to 3pm. About 34% of passengers prefer this time. Many major carriers, including Delta, United and American Airlines, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in London ready to start your evening.
How long does it take to fly from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
Flights from MKE to LHR with one stop typically take around 12 hours 30 minutes, covering approximately 3,898 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for MKE to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from General Mitchell Intl. (MKE)?
From General Mitchell Intl. (MKE), you can fly into Heathrow (LHR), London City (LCY) and Gatwick (LGW) in London. Some flights may connect through major hubs like O'Hare Intl. (ORD), Detroit Metropolitan Wayne County (DTW), Hartsfield-Jackson Atlanta Intl. (ATL) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow)?
If you booked your Milwaukee, WI (MKE-General Mitchell Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
General Mitchell Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, British Airways, Iberia, JetBlue Airways, KLM, Lufthansa, Virgin Atlantic
Return price
£640
Distance
6235 km

Book with confidence

Compare flights from Milwaukee to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Milwaukee to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from General Mitchell Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from General Mitchell Intl. (MKE) to Heathrow (LHR)

The easiest way to view the best deals on flights from Milwaukee to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from General Mitchell Intl. to Heathrow start at just £640 and range up to £663.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Milwaukee and London
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Milwaukee to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from General Mitchell Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Milwaukee to London easily and book with confidence

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*Available to Expedia members.