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Cheap flights from Milwaukee to London Heathrow Airport from £229

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

£479

One-way from

£229

Popular in

June

Cheapest in

October

Average price

£1,039
British Airways
  • British Airways
  • 19/8-29/8
  • 2 total stops
  • 25h 19m total
  • Milwaukee to London
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1/8
  • 1/8
  • 3 total stops
  • 44h 10m total
  • Milwaukee to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£91 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return 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 13 June 2025.

Tue 19/816:56MKE - LHR
1 stop11h 34mBritish Airways
Fri 29/812:15LHR - MKE
1 stop13h 45mBritish Airways
Deal found 12/6£479
Mon 6/1017:40MKE - LHR
2 stops30h 50mMultiple Airlines
Thu 16/1009:00LHR - MKE
2 stops19h 31mMultiple Airlines
Deal found 12/6£507
Tue 19/807:30MKE - LHR
2 stops28h 10mScandinavian Airlines
Fri 29/817:30LHR - MKE
2 stops32h 54mScandinavian Airlines
Deal found 12/6£518
Sun 13/717:14MKE - LHR
1 stop11h 16mAmerican Airlines
Wed 23/712:30LHR - MKE
1 stop14h 53mAmerican Airlines
Deal found 12/6£523
Sun 13/718:39MKE - LHR
1 stop12h 51mDelta
Wed 23/710:55LHR - MKE
2 stops17h 03mDelta
Deal found 11/6£528
Wed 29/1008:44MKE - LHR
2 stops17h 26mAir Canada
Thu 13/1118:00LHR - MKE
2 stops25h 58mAir Canada
Deal found 12/6£540
Tue 9/915:44MKE - LHR
2 stops13h 41mUnited Airlines
Fri 19/913:45LHR - MKE
2 stops15h 44mUnited Airlines
Deal found 12/6£542
Wed 17/912:20MKE - LHR
1 stop12h 55mVirgin Atlantic
Fri 26/909:40LHR - MKE
2 stops17h 28mVirgin Atlantic
Deal found 11/6£561
Mon 22/917:50MKE - LHR
1 stop13h 20mKLM
Mon 29/912:25LHR - MKE
1 stop15h 02mKLM
Deal found 11/6£589
Fri 24/1017:40MKE - LHR
2 stops16h 00mLufthansa
Thu 13/1111:10LHR - MKE
2 stops17h 33mLufthansa
Deal found 12/6£595

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 13 June 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 19/8

16:56-10:30

1 stop11h 34m

London Heathrow

Fri 29/8

12:15-20:00

1 stop13h 45m

£479

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 6/10

17:40-06:30

2 stops30h 50m

London Heathrow

Thu 16/10

09:00-22:31

2 stops19h 31m

£507

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 19/8

07:30-17:40

2 stops28h 10m

London Heathrow

Fri 29/8

17:30-20:24

2 stops32h 54m

£518

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 13/7

17:14-10:30

1 stop11h 16m

London Heathrow

Wed 23/7

12:30-21:23

1 stop14h 53m

£523

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 13/7

18:39-13:30

1 stop12h 51m

London Heathrow

Wed 23/7

10:55-21:58

2 stops17h 03m

£528

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 29/10

08:44-07:10

2 stops17h 26m

London Heathrow

Thu 13/11

18:00-13:58

2 stops25h 58m

£540

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 9/9

15:44-11:25

2 stops13h 41m

London Heathrow

Fri 19/9

13:45-23:29

2 stops15h 44m

£542

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 17/9

12:20-07:15

1 stop12h 55m

London Heathrow

Fri 26/9

09:40-21:08

2 stops17h 28m

£561

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 22/9

17:50-13:10

1 stop13h 20m

London Heathrow

Mon 29/9

12:25-21:27

1 stop15h 02m

£589

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 24/10

17:40-15:40

2 stops16h 00m

London Heathrow

Thu 13/11

11:10-22:43

2 stops17h 33m

£595

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 16 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 return 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 return flight from Milwaukee to Heathrow. Price data was last updated on 9 June 2025.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Milwaukee to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £112). Flying from Milwaukee to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

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 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
Read through reviews of airlines operating flights from Milwaukee to London, such as Delta, KLM and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Check prices

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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?

    Located just 6.4 mi from the city center, Milwaukee-Mitchell is the airport most travelers will use when flying to London Heathrow from Milwaukee. Booking flights from Milwaukee-Mitchell (MKE) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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

    Flying on British Airways is currently your cheapest option to London Heathrow Airport, with prices starting at £479. Additional return tickets that might be worth considering are offered by Scandinavian Airlines and American Airlines, with the lowest prices starting at £518 and £523, respectively. British Airways is currently priced 29% below the average price you’ll pay for this route.

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

    The cheapet airlines for a one-way flight from Milwaukee to London Heathrow Airport are British Airways (£308), KLM (£341), and Air Canada (£341).

  • 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 holiday 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 £112). Flying from Milwaukee to London Heathrow Airport in August is currently the most expensive (average of £164). 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

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