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Heathrow

$334+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Cheap 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 March 23, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
Wed 8/197:00 pm
MKE
-
LHR
2 stops18h 40m
Lufthansa
Wed 8/269:00 am
LHR
-
MKE
2 stops17h 55m
Lufthansa
Deal found 3/20$785
This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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.
Tue 4/2112:13 pm
MKE
-
LHR
2 stops18h 27m
Lufthansa
Tue 4/2810:50 am
LHR
-
MKE
2 stops15h 58m
Lufthansa
Deal found 3/22$795
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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.
Mon 4/67:41 pm
MKE
-
LHR
2 stops16h 59m
Lufthansa
Wed 4/158:30 am
LHR
-
MKE
2 stops20h 00m
Lufthansa
Deal found 3/19$805
This Orbitz deal was found by Cheapflights users on 3/19. 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.
Thu 4/167:10 am
MKE
-
LHR
2 stops32h 30m
Scandinavian Airlines
Thu 4/237:05 am
LHR
-
MKE
2 stops19h 20m
Scandinavian Airlines
Deal found 3/19$812
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:10 am
MKE
-
LHR
2 stops28h 30m
Scandinavian Airlines
Fri 4/177:05 am
LHR
-
MKE
2 stops19h 20m
Scandinavian Airlines
Deal found 3/21$815
This Scandinavian Airlines deal was found by Cheapflights users on 3/19. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:10 am
MKE
-
LHR
2 stops28h 30m
Scandinavian Airlines
Wed 4/229:05 pm
LHR
-
MKE
3 stops29h 20m
Scandinavian Airlines
Deal found 3/19$819
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:40 pm
MKE
-
LHR
1 stop11h 35m
Iberia
Tue 4/288:00 pm
LHR
-
MKE
2 stops27h 11m
Iberia
Deal found 3/22$822
This United Airlines deal was found by Cheapflights users on 3/20. 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 4/110:45 am
MKE
-
LHR
2 stops15h 50m
United Airlines
Tue 4/77:25 am
LHR
-
MKE
2 stops15h 22m
United Airlines
Deal found 3/20$823
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Tue 5/58:33 am
MKE
-
LHR
2 stops15h 57m
United Airlines
Tue 5/126:50 am
LHR
-
MKE
2 stops13h 37m
United Airlines
Deal found 3/20$826
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Sun 5/39:37 am
MKE
-
LHR
2 stops15h 18m
United Airlines
Tue 5/196:50 am
LHR
-
MKE
2 stops15h 52m
United Airlines
Deal found 3/20$827
This United Airlines deal was found by Cheapflights users on 3/22. 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 5/65:10 am
MKE
-
LHR
2 stops19h 20m
United Airlines
Wed 5/138:40 am
LHR
-
MKE
2 stops16h 17m
United Airlines
Deal found 3/22$828

Find 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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$738
(Scandinavian Airlines)

One-way from

$334
(Delta)

Popular in

June

Cheapest in

January

Average price

$806
Provider with most accurate pricing for Milwaukee-Mitchell-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-London Heathrow flights.
Search Deals
From Milwaukee-Mitchell to London Heathrow
Search Deals
One-way flight from Milwaukee-Mitchell to London Heathrow
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 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 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 March 23, 2026.
Use the filters below to find and compare flights from Milwaukee to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 4/6

9:43 am-6:45 am

1 stop15h 02m

London Heathrow

Wed 4/15

10:50 am-9:49 pm

2 stops16h 59m

$823

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 9/1

5:05 am-6:45 am

1 stop19h 40m

London Heathrow

Tue 9/8

7:25 am-4:46 pm

2 stops15h 21m

$823

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 4/7

8:30 am-6:45 am

1 stop16h 15m

London Heathrow

Wed 4/15

6:50 am-4:47 pm

2 stops15h 57m

$872

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 4/2

5:37 pm-11:55 am

1 stop12h 18m

London Heathrow

Tue 4/7

10:50 am-9:23 pm

2 stops16h 33m

$873

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 5/7

5:55 am-10:00 am

2 stops22h 05m

London Heathrow

Thu 5/14

6:50 am-2:27 pm

2 stops13h 37m

$876

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 7/13

5:55 am-6:25 am

1 stop18h 30m

London Heathrow

Mon 12/7

8:40 am-9:09 pm

2 stops18h 29m

$908

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 4/24

12:13 pm-11:55 am

1 stop17h 42m

London Heathrow

Sun 5/3

9:00 am-10:03 pm

2 stops19h 03m

$923
Quickest round-trip

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 4/3

2:32 pm-6:45 am

1 stop10h 13m

London Heathrow

Tue 6/2

11:05 am-4:42 pm

1 stop11h 37m

$1,026

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 4/3

2:32 pm-6:45 am

1 stop10h 13m

London Heathrow

Fri 6/5

11:05 am-4:42 pm

1 stop11h 37m

$1,026

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 8/13

1:00 pm-8:50 am

2 stops13h 50m

London Heathrow

Mon 8/17

6:30 am-4:42 pm

2 stops16h 12m

$1,032

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Milwaukee to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Heathrow in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 13, 2026.

The best time to book flights from Milwaukee to London Heathrow Airport is 45 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, May is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $391). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $887). 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.

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 March 23, 2026.
Peruse reviews from past customers who have flown with Delta,Virgin Atlantic, andUnited Airlines 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
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,318 reviews
Delta
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
685 reviews
Delta
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,463 reviews
Delta
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,486 reviews
Delta
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,813 reviews
Delta
7.9
Good
8,318 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Milwaukee to London Heathrow Airport?

    Airlines like United Airlines fly from Milwaukee to London Heathrow Airport in about 19h 40m. The time it takes to get you to your destination can typically vary by up to . There are 3894 mi between Milwaukee and London Heathrow Airport.

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

    Delta, at $596, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include British Airways and Virgin Atlantic. These flights start at 30% lower than the current average price 3 months from now.

  • 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, May is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $391). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $887). 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
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$596Average$851FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$603Average$850FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$629Average$850FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$663Average$1,124FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$708Average$1,054FlexibilityNo cancel feeOn-time69%

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