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$314+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 80 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 June 12, 2025.

Round-trip from

$651
(American Airlines)

One-way from

$314
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$1,412
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. 15% potential increase in price ($170 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 June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 9/93:47 pmMKE - LHR
1 stop11h 18mAmerican Airlines
Fri 9/191:10 pmLHR - MKE
1 stop12h 50mAmerican Airlines
Deal found 6/12$651
This Priceline deal was found by Cheapflights users on 6/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:38 pmMKE - LHR
2 stops19h 12mBritish Airways
Fri 9/191:10 pmLHR - MKE
1 stop11h 24mBritish Airways
Deal found 6/12$665
This Gotogate deal was found by Cheapflights users on 6/12. 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.
Mon 10/65:40 pmMKE - LHR
2 stops30h 50mMultiple Airlines
Thu 10/169:00 amLHR - MKE
2 stops19h 31mMultiple Airlines
Deal found 6/12$689
This KLM deal was found by Cheapflights users on 6/10. 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.
Sun 7/135:50 pmMKE - LHR
1 stop13h 20mKLM
Tue 7/2211:45 amLHR - MKE
1 stop12h 07mKLM
Deal found 6/10$712
This Delta deal was found by Cheapflights users on 6/10. 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 7/137:05 amMKE - LHR
1 stop19h 50mDelta
Wed 7/2310:55 amLHR - MKE
2 stops17h 03mDelta
Deal found 6/10$716
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/1912:05 pmMKE - LHR
1 stop14h 15mUnited Airlines
Fri 8/292:05 pmLHR - MKE
2 stops26h 48mUnited Airlines
Deal found 6/9$728
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Wed 10/298:44 amMKE - LHR
2 stops17h 26mAir Canada
Thu 11/136:00 pmLHR - MKE
2 stops25h 58mAir Canada
Deal found 6/12$734
This Virgin Atlantic deal was found by Cheapflights users on 6/11. 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.
Wed 9/1712:20 pmMKE - LHR
1 stop12h 55mVirgin Atlantic
Fri 9/269:40 amLHR - MKE
2 stops17h 28mVirgin Atlantic
Deal found 6/11$762
This Orbitz deal was found by Cheapflights users on 6/10. 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 10/15:40 pmMKE - LHR
2 stops17h 00mLufthansa
Mon 10/68:25 pmLHR - MKE
2 stops26h 26mLufthansa
Deal found 6/10$770
This Scandinavian Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 8/237:30 amMKE - LHR
2 stops28h 10mScandinavian Airlines
Fri 8/297:50 pmLHR - MKE
2 stops30h 34mScandinavian Airlines
Deal found 6/12$824

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 June 12, 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

Tue 9/9

3:47 pm-9:05 am

1 stop11h 18m

London Heathrow

Fri 9/19

1:10 pm-8:00 pm

1 stop12h 50m

$651

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 9/9

4:38 pm-5:50 pm

2 stops19h 12m

London Heathrow

Fri 9/19

1:10 pm-6:34 pm

1 stop11h 24m

$665

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 10/6

5:40 pm-6:30 am

2 stops30h 50m

London Heathrow

Thu 10/16

9:00 am-10:31 pm

2 stops19h 31m

$689

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 7/13

5:50 pm-1:10 pm

1 stop13h 20m

London Heathrow

Tue 7/22

11:45 am-5:52 pm

1 stop12h 07m

$712

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 7/13

3:14 pm-1:30 pm

1 stop16h 16m

London Heathrow

Tue 7/22

10:55 am-9:58 pm

2 stops17h 03m

$716

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 8/19

12:05 pm-8:20 am

1 stop14h 15m

London Heathrow

Fri 8/29

2:05 pm-10:53 am

2 stops26h 48m

$728

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 10/29

8:44 am-7:10 am

2 stops17h 26m

London Heathrow

Thu 11/13

6:00 pm-1:58 pm

2 stops25h 58m

$734

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 9/17

12:20 pm-7:15 am

1 stop12h 55m

London Heathrow

Fri 9/26

9:40 am-9:08 pm

2 stops17h 28m

$762

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 10/1

5:40 pm-4:40 pm

2 stops17h 00m

London Heathrow

Mon 10/6

8:25 pm-4:51 pm

2 stops26h 26m

$770

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sat 8/23

7:30 am-5:40 pm

2 stops28h 10m

London Heathrow

Fri 8/29

7:50 pm-8:24 pm

2 stops30h 34m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 17 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 9, 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 $1,108). 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 June 12, 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, KLM and United Airlines from Milwaukee to London by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
652 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

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?

    American Airlines, at $651, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include British Airways and KLM. These flights start at 29% 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 British Airways ($419), Air Canada ($470), and Delta ($476).

  • 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 $1,108). 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
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
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Broadway
Sutton
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Chelmsford
Brentwood

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$613Average$797FlexibilityNo cancel feeOn-time71%
DeltaCheapest$613Average$831FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$659Average$957FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$695Average$813FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$703Average$927FlexibilityNo cancel feeOn-time72%

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