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Cheap flights from Milwaukee to London Heathrow Airport from £168

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — LHR
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Milwaukee to Heathrow

Enter your travel dates to find the best prices.

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 5 December 2025.

Wed 31/1211:08MKE - LHR
1 stop13h 57mMultiple Airlines
Wed 7/113:00LHR - MKE
1 stop13h 54mMultiple Airlines
Deal found 2/12£470
Wed 31/1208:30MKE - LHR
2 stops16h 40mAir Canada
Wed 7/118:00LHR - MKE
2 stops27h 43mAir Canada
Deal found 2/12£526
Wed 10/1212:04MKE - LHR
1 stop11h 51mUnited Airlines
Wed 17/1213:25LHR - MKE
2 stops14h 55mUnited Airlines
Deal found 3/12£622
Wed 31/1211:08MKE - LHR
1 stop13h 57mDelta
Tue 6/112:40LHR - MKE
1 stop14h 18mDelta
Deal found 3/12£648
Wed 31/1215:48MKE - LHR
1 stop13h 27mLufthansa
Tue 6/120:15LHR - MKE
2 stops32h 41mLufthansa
Deal found 3/12£763
Tue 30/1206:36MKE - LHR
2 stops18h 34mAir Canada
Tue 6/113:25LHR - MKE
2 stops28h 44mAir Canada
Deal found 3/12£779
Wed 31/1211:08MKE - LHR
1 stop13h 57mDelta
Mon 5/113:00LHR - MKE
1 stop29h 29mDelta
Deal found 3/12£782
Tue 30/1208:45MKE - LHR
1 stop15h 35mDelta
Tue 6/110:45LHR - MKE
1 stop15h 13mDelta
Deal found 3/12£815

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 5 December 2025.

Round-trip from

£438

One-way from

£168

Popular in

December

Cheapest in

January

Average price

£1,254
Scandinavian Airlines
  • Scandinavian Airlines
  • 22/4-27/4
  • 4 total stops
  • 48h 54m total
  • Milwaukee to London
Search Deals
KLM
  • KLM
  • 17/3
  • 1 total stop
  • 14h 49m total
  • Milwaukee to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 5 December 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

Thu 5/2

07:05-09:20

2 stops20h 15m

London Heathrow

Wed 11/2

06:40-20:58

2 stops20h 18m

£449

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 8/2

07:05-16:00

2 stops26h 55m

London Heathrow

Tue 17/2

06:40-20:36

2 stops19h 56m

£449

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 15/1

07:15-16:00

2 stops26h 45m

London Heathrow

Mon 26/1

06:40-20:58

2 stops20h 18m

£449

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 10/2

07:15-16:00

2 stops26h 45m

London Heathrow

Tue 17/2

06:40-20:36

2 stops19h 56m

£449

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 8/2

07:00-07:50

1 stop18h 50m

London Heathrow

Tue 17/2

11:45-20:21

2 stops14h 36m

£450

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Thu 22/1

07:15-14:35

3 stops25h 20m

London Heathrow

Wed 28/1

06:40-20:58

2 stops20h 18m

£452

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 23/1

07:15-14:35

3 stops25h 20m

London Heathrow

Wed 28/1

06:40-20:58

2 stops20h 18m

£452

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 17/3

13:11-09:00

1 stop14h 49m

£168

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 17/3

17:00-10:15

2 stops12h 15m

£168

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 20/5

11:15-11:00

1 stop17h 45m

£193

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 19 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 28 November 2025.

Booking 46 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, May is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of £299). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of £679). 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 for a return flight from Milwaukee to London Heathrow Airport?

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.

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

    Airlines like Scandinavian Airlines fly from Milwaukee to London Heathrow Airport in about 20h 15m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3894 mi.

  • 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, May is the cheapest month in which you can book a flight from Milwaukee to London Heathrow Airport (average of £299). Flying from Milwaukee to London Heathrow Airport in June is currently the most expensive (average of £679). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Northampton
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Swindon
Romford
Bedford
Chichester

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Can Cheapflights find flights from Milwaukee to Heathrow with no change fees?

Yes, we can. To see specific flights from Milwaukee to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Milwaukee to Heathrow become cheaper?

Yes! Start tracking prices for Milwaukee to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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