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Heathrow

$321+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
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 July 6, 2026.

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.
Tue 11/36:18 pm
MKE
-
LHR
2 stops15h 32m
Lufthansa
Tue 11/107:40 am
LHR
-
MKE
2 stops19h 15m
Lufthansa
Deal found 7/1$858
This Cheapflightsfares deal was found by Cheapflights users on 7/5. 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.
Wed 10/216:32 pm
MKE
-
LHR
2 stops17h 53m
Lufthansa
Wed 10/288:45 am
LHR
-
MKE
2 stops19h 00m
Lufthansa
Deal found 7/5$859
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:58 pm
MKE
-
LHR
1 stop11h 37m
Iberia
Tue 11/176:05 am
LHR
-
MKE
2 stops18h 31m
Iberia
Deal found 7/3$860
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:00 pm
MKE
-
LHR
1 stop11h 25m
United Airlines
Tue 11/106:50 am
LHR
-
MKE
2 stops16h 48m
United Airlines
Deal found 7/1$863
This United Airlines deal was found by Cheapflights users on 7/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:20 pm
MKE
-
LHR
1 stop12h 10m
United Airlines
Wed 10/286:50 am
LHR
-
MKE
2 stops15h 03m
United Airlines
Deal found 7/5$865
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:23 pm
MKE
-
LHR
2 stops14h 02m
United Airlines
Tue 11/176:50 am
LHR
-
MKE
2 stops16h 03m
United Airlines
Deal found 7/3$868
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:58 pm
MKE
-
LHR
1 stop10h 42m
Iberia
Mon 10/267:40 pm
LHR
-
MKE
2 stops27h 56m
Iberia
Deal found 7/3$870
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:51 pm
MKE
-
LHR
1 stop32h 54m
United Airlines
Fri 10/232:05 pm
LHR
-
MKE
2 stops29h 38m
United Airlines
Deal found 7/3$873
This United Airlines deal was found by Cheapflights users on 7/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am
MKE
-
LHR
1 stop19h 15m
United Airlines
Fri 10/237:30 am
LHR
-
MKE
2 stops16h 10m
United Airlines
Deal found 7/4$876

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 July 6, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$858
(Cheapflightsfares)

One-way from

$321
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$1,271
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. 22% potential increase in price ($259 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 6, 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 11/9

11:35 am-6:20 am

1 stop12h 45m

London Heathrow

Mon 11/16

6:50 am-2:58 pm

2 stops14h 08m

$863

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 9/22

8:11 am-6:20 am

1 stop16h 09m

London Heathrow

Tue 9/29

6:30 am-5:52 pm

2 stops17h 22m

$883

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sat 8/15

11:40 am-8:20 am

1 stop14h 40m

London Heathrow

Sat 8/22

9:30 am-6:55 pm

2 stops15h 25m

$896
Quickest round-trip

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 11/2

2:23 pm-7:55 am

1 stop11h 32m

London Heathrow

Mon 11/9

6:50 am-2:58 pm

2 stops14h 08m

$915

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/23

6:37 pm-1:15 pm

1 stop12h 38m

London Heathrow

Mon 9/28

8:40 am-6:18 pm

2 stops15h 38m

$933

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 10/1

11:35 am-10:40 am

1 stop17h 05m

London Heathrow

Wed 10/7

6:30 am-4:23 pm

2 stops15h 53m

$934

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/23

12:44 pm-6:25 am

1 stop11h 41m

London Heathrow

Mon 9/28

9:20 am-5:32 pm

1 stop14h 12m

$963

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/23

8:14 pm-7:45 pm

2 stops17h 31m

London Heathrow

Mon 9/28

8:15 pm-9:54 pm

2 stops31h 39m

$966
Cheapest one-way

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 10/9

11:42 am-7:40 am

1 stop13h 58m

$372

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 10/9

10:42 am-6:55 am

2 stops14h 13m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 12 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Milwaukee-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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

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

Currently, January is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $659). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $1,349). 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.

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 6, 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
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,452 reviews
Delta
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Virgin Atlantic
7.5
Good
691 reviews
Delta
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,940 reviews
Delta
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,783 reviews
Delta
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
British Airways
6.7
Okay
8,096 reviews
Delta
7.8
Good
8,452 reviews

Comfort

7.8

Entertainment

7.8

Overall

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 and Delta fly from Milwaukee to London Heathrow Airport in about 12h 45m. The time it takes to get you to your destination can typically vary by up to 3h 24m. 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 $337, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include Delta and British Airways. These flights start at 62% 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, January is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of $659). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of $1,349). 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Watford
Northampton
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

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 July 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$337Average$834FlexibilityNo cancel feeOn-time72%
DeltaCheapest$596Average$986FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$624Average$794FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$659Average$1,161FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$708Average$1,352FlexibilityNo cancel feeOn-time69%

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