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$274+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
1 adult, Economy
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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 January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$581
(Cheapflightsfares)

One-way from

$274
(Delta)

Popular in

June

Cheapest in

January

Average price

$657
Provider with most accurate pricing for Milwaukee-Mitchell-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-London Heathrow flights.
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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. 17% potential increase in price ($183 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 6, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/6. 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 1/261:04 pmMKE - LHR
1 stop11h 51mBritish Airways
Mon 2/27:40 pmLHR - MKE
2 stops28h 45mBritish Airways
Deal found 1/6$581
This Cheapflightsfares deal was found by Cheapflights users on 1/5. 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 2/32:46 pmMKE - LHR
1 stop11h 29mBritish Airways
Tue 2/102:10 pmLHR - MKE
1 stop13h 55mBritish Airways
Deal found 1/5$589
This FlightHub deal was found by Cheapflights users on 1/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/34:30 pmMKE - LHR
1 stop9h 45mMultiple Airlines
Tue 2/107:30 amLHR - MKE
2 stops20h 35mMultiple Airlines
Deal found 1/5$601
This Virgin Atlantic deal was found by Cheapflights users on 1/5. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/31:18 pmMKE - LHR
2 stops12h 47mVirgin Atlantic
Tue 2/1011:30 amLHR - MKE
2 stops15h 24mVirgin Atlantic
Deal found 1/5$607
This KLM deal was found by Cheapflights users on 1/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:11 pmMKE - LHR
1 stop14h 39mKLM
Tue 3/249:40 amLHR - MKE
1 stop14h 00mKLM
Deal found 1/6$609
This Delta deal was found by Cheapflights users on 1/6. 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.
Mon 3/21:21 pmMKE - LHR
2 stops12h 44mDelta
Sun 3/86:30 amLHR - MKE
2 stops18h 36mDelta
Deal found 1/6$611
This Cheapflightsfares deal was found by Cheapflights users on 1/5. 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 2/311:29 amMKE - LHR
2 stops19h 31mLufthansa
Tue 2/106:35 amLHR - MKE
2 stops18h 18mLufthansa
Deal found 1/5$617
This Cheapflightsfares deal was found by Cheapflights users on 1/4. 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 1/2611:30 amMKE - LHR
1 stop12h 25mLufthansa
Mon 2/28:15 pmLHR - MKE
2 stops28h 38mLufthansa
Deal found 1/4$619
This Netflights deal was found by Cheapflights users on 1/5. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/611:03 amMKE - LHR
1 stop14h 02mVirgin Atlantic
Sat 2/141:00 pmLHR - MKE
1 stop13h 21mVirgin Atlantic
Deal found 1/5$620
This Justfly.com deal was found by Cheapflights users on 1/6. 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 3/164:47 pmMKE - LHR
2 stops21h 38mBritish Airways
Tue 3/247:40 pmLHR - MKE
2 stops29h 45mBritish Airways
Deal found 1/6$623
This Delta deal was found by Cheapflights users on 1/6. 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 5/312:20 pmMKE - LHR
1 stop12h 05mDelta
Wed 5/1310:45 amLHR - MKE
1 stop11h 22mDelta
Deal found 1/6$625

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 January 6, 2026.
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

Mon 3/2

7:00 am-6:20 am

1 stop17h 20m

London Heathrow

Sun 3/8

8:40 am-9:27 pm

2 stops17h 47m

$607

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 2/3

1:18 pm-8:05 am

2 stops12h 47m

London Heathrow

Tue 2/10

11:30 am-8:54 pm

2 stops15h 24m

$607

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 5/3

12:20 pm-6:25 am

1 stop12h 05m

London Heathrow

Wed 5/13

10:45 am-4:07 pm

1 stop11h 22m

$625

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 2/6

1:18 pm-8:45 am

1 stop13h 27m

London Heathrow

Tue 2/10

11:30 am-8:54 pm

2 stops15h 24m

$627

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 2/20

7:15 am-6:50 am

1 stop17h 35m

London Heathrow

Fri 2/27

6:20 am-4:08 pm

2 stops15h 48m

$627

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 2/6

11:03 am-7:05 am

1 stop14h 02m

London Heathrow

Sat 2/14

6:30 am-6:11 pm

2 stops17h 41m

$631

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sat 3/7

7:00 am-6:20 am

1 stop17h 20m

London Heathrow

Sat 3/14

6:30 am-8:06 pm

2 stops18h 36m

$632

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 2/19

9:31 am-8:45 am

1 stop17h 14m

London Heathrow

Thu 2/26

6:30 am-4:08 pm

2 stops15h 38m

$632

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 3/1

12:20 pm-7:50 am

1 stop13h 30m

London Heathrow

Sun 3/15

10:10 am-8:06 pm

1 stop14h 56m

$634

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 3/2

5:03 pm-8:45 am

1 stop9h 42m

London Heathrow

Sun 3/8

11:05 am-9:27 pm

1 stop15h 22m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

Showing 1-10 of 21 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Milwaukee-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 January 2, 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 $907). 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 January 6, 2026.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and United 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
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
8,018 reviews
Delta
7.9
Good
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
678 reviews
Delta
7.9
Good
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
9,132 reviews
Delta
7.9
Good
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
7.2
Good
11,084 reviews
Delta
7.9
Good
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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
7,657 reviews
Delta
7.9
Good
8,018 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

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 Delta and Virgin Atlantic fly from Milwaukee to London Heathrow Airport in about 12h 47m. The time it takes to get you to your destination can typically vary by up to 4h 33m. There are 3894 mi between Milwaukee and London Heathrow Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Virgin Atlantic, at $632, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include British Airways and American Airlines. These flights start at 29% 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 $907). 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
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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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 January 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$632Average$877FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$691Average$764FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$699Average$1,106FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$708Average$1,054FlexibilityNo cancel feeOn-time69%
DeltaCheapest$744Average$842FlexibilityNo cancel feeOn-timeN/A

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