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$399+ Cheap flights from Milwaukee (MKE) 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to London Heathrow are usually found in October or April, booked 79 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from Milwaukee to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$602
(Gotogate)

One-way from

$399
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$1,017
From Milwaukee-Mitchell to London Heathrow
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One-way flight from Milwaukee-Mitchell to London Heathrow
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Highest demand for flights based on searches. 14% potential increase in price ($160 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Milwaukee to Heathrow

Cheapest flights from Milwaukee to Heathrow
Explore the most affordable flight options available from Milwaukee to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Gotogate deal was found by Cheapflights users on 7/2. 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 9/310:50 amMKE - LHR
2 stops15h 45mMultiple Airlines
Fri 9/129:00 amLHR - MKE
2 stops19h 41mMultiple Airlines
Deal found 7/2$602
This Billigflug deal was found by Cheapflights users on 7/3. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/44:56 pmMKE - LHR
1 stop12h 14mVirgin Atlantic
Wed 8/201:05 pmLHR - MKE
1 stop13h 26mVirgin Atlantic
Deal found 7/3$629
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Wed 9/311:39 amMKE - LHR
1 stop13h 06mUnited Airlines
Fri 9/122:05 pmLHR - MKE
2 stops26h 50mUnited Airlines
Deal found 7/2$631
This Air Canada deal was found by Cheapflights users on 7/1. 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.
Tue 8/510:45 amMKE - LHR
2 stops17h 15mAir Canada
Fri 8/292:05 pmLHR - MKE
2 stops31h 04mAir Canada
Deal found 7/1$632
This Orbitz deal was found by Cheapflights users on 7/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:49 pmMKE - LHR
1 stop10h 26mBritish Airways
Mon 9/17:25 pmLHR - MKE
2 stops27h 01mBritish Airways
Deal found 7/1$640
This Delta deal was found by Cheapflights users on 7/1. 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.
Sun 8/242:54 pmMKE - LHR
1 stop16h 36mDelta
Wed 9/36:15 amLHR - MKE
2 stops20h 09mDelta
Deal found 7/1$646
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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.
Fri 10/175:41 pmMKE - LHR
2 stops17h 24mLufthansa
Wed 10/229:30 amLHR - MKE
2 stops19h 01mLufthansa
Deal found 7/1$725
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Fri 8/12:50 pmMKE - LHR
1 stop10h 00mAmerican Airlines
Fri 8/83:00 pmLHR - MKE
1 stop14h 04mAmerican Airlines
Deal found 7/2$734

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee 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 July 3, 2025.
Use the filters below to find and compare flights from Milwaukee to London Heathrow Airport that are best for you.

Fly from

Milwaukee

Fly to

Heathrow

Route

Depart

Return

Price

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/3

10:50 am-8:35 am

2 stops15h 45m

London Heathrow

Fri 9/12

9:00 am-10:41 pm

2 stops19h 41m

$602

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 8/4

4:56 pm-11:10 am

1 stop12h 14m

London Heathrow

Wed 8/20

1:05 pm-8:31 pm

1 stop13h 26m

$629

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/3

11:39 am-6:45 am

1 stop13h 06m

London Heathrow

Fri 9/12

2:05 pm-10:55 am

2 stops26h 50m

$631

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 8/5

10:45 am-10:00 am

2 stops17h 15m

London Heathrow

Fri 8/29

2:05 pm-3:09 pm

2 stops31h 04m

$632

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 8/24

7:49 pm-12:15 pm

1 stop10h 26m

London Heathrow

Mon 9/1

7:25 pm-4:26 pm

2 stops27h 01m

$640

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 8/24

2:54 pm-1:30 pm

1 stop16h 36m

London Heathrow

Wed 9/3

6:15 am-8:24 pm

2 stops20h 09m

$646

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 8/1

2:50 pm-6:50 am

1 stop10h 00m

London Heathrow

Fri 8/8

3:00 pm-11:04 pm

1 stop14h 04m

$734

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 8/27

10:50 am-6:20 am

1 stop13h 30m

$399

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 8/27

8:30 am-6:30 am

3 stops16h 00m

$426

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sat 7/26

3:14 pm-6:45 am

1 stop33h 31m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 13 results
1
2

Best time to book a flight from Milwaukee to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Milwaukee 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 Milwaukee to London Heathrow Airport

How far ahead should I book a flight from Milwaukee to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to Heathrow. Price data was last updated on June 27, 2025.

The best time to book flights from Milwaukee to London Heathrow Airport is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $661). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $1,098). 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 MKE to LHR?

Find hourly flight availability from Milwaukee 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 July 3, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% on flights from Milwaukee to London Heathrow Airport by exploring options for tickets in the evening.

How much does it cost to fly round-trip from Milwaukee to London Heathrow Airport?

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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Virgin Atlantic from Milwaukee to London Heathrow Airport to help guide your decision. 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
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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!
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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 Canada
7.1
Good
9,678 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

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 Milwaukee to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Milwaukee to London Heathrow?

    Milwaukee-Mitchell (MKE), located 6.4 mi from the city center, is the airport you fly out of when you book flights from Milwaukee to London Heathrow. 5 airlines have flights from Milwaukee-Mitchell to London Heathrow on a regular basis. Booking flights from Milwaukee-Mitchell to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • What are the cheapest airlines flying from Milwaukee to London Heathrow Airport round-trip?

    Virgin Atlantic, at $629, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include United Airlines and Air Canada. These flights start at 32% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Milwaukee to London Heathrow Airport one-way?

    The cheapest airlines for a one-way flight from Milwaukee to London Heathrow Airport are United Airlines ($399), Delta ($419), and Air Canada ($426).

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

    Yes. In addition to deals on Milwaukee to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Heathrow.

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

    Yes. Cheapflights offers flight deals from Milwaukee 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 Milwaukee to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $661). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $1,098). 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Canterbury
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Dover
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Gatwick
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Northampton
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Alternative routes for Milwaukee to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Milwaukee to Heathrow

Discover the top 5 airlines that operate flights from Milwaukee 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$613Average$797FlexibilityNo cancel feeOn-time71%
DeltaCheapest$613Average$833FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$659Average$988FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$695Average$806FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$703Average$927FlexibilityNo cancel feeOn-time72%

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