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

Flying on Air Canada is currently your cheapest option to London Heathrow Airport, with prices starting at £547. Additional return tickets that might be worth considering are offered by Virgin Atlantic and United Airlines, with the lowest prices starting at £550 and £573, respectively. Air Canada is currently priced 19% 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 Aer Lingus (£342), British Airways (£349), and Air Canada (£354).

What is the cheapest day to fly from Milwaukee to London Heathrow Airport?

Travellers seeking maximum savings on their Milwaukee to London Heathrow Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How far in advance should I book a flight from Milwaukee to London Heathrow Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 12 days in advance, which can save you up to 1% on flights from Milwaukee to London Heathrow Airport compared to booking the week you need them. Waiting 12 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £514. For sooner than that we have options available in the next 3 days from £747.

What is the cheapest month to fly from Milwaukee to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Milwaukee in October are about £702 on average during October, but can be found for as low as £457.

What is the cheapest time of day to fly from MKE to LHR?

When flying from Milwaukee to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£342+ Flights from Milwaukee to London Heathrow Airport

Cheap flight deals from Milwaukee to Heathrow

Round-trip from	£547
One-way from	£342
Popular in	December
Cheapest in	October
Average price	£599

Air Canada
8/10-5/12
4 total stops
49h 35m total
Milwaukee to London

Search Deals

Aer Lingus
27/8
2 total stops
17h 50m total
Milwaukee to London

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£40 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 29 April 2025.

Wed 8/1007:00MKE - LHR

2 stops17h 30mAir Canada

Fri 5/1214:30LHR - MKE

2 stops32h 05mAir Canada

Deal found 29/4£547

Wed 8/1013:05MKE - LHR

1 stop13h 50mVirgin Atlantic

Fri 5/1208:50LHR - MKE

1 stop16h 06mVirgin Atlantic

Deal found 29/4£550

Wed 1/1014:50MKE - LHR

1 stop10h 30mAmerican Airlines

Thu 16/1012:15LHR - MKE

1 stop10h 58mAmerican Airlines

Deal found 29/4£560

Wed 3/912:05MKE - LHR

2 stops14h 30mMultiple Airlines

Wed 10/910:50LHR - MKE

2 stops17h 51mMultiple Airlines

Deal found 28/4£572

Wed 8/1010:50MKE - LHR

1 stop13h 30mUnited Airlines

Fri 5/1214:30LHR - MKE

2 stops29h 13mUnited Airlines

Deal found 29/4£573

Wed 3/914:50MKE - LHR

1 stop15h 25mBritish Airways

Wed 10/907:50LHR - MKE

2 stops19h 37mBritish Airways

Deal found 28/4£574

Wed 3/912:20MKE - LHR

1 stop12h 25mKLM

Wed 10/911:45LHR - MKE

1 stop12h 18mKLM

Deal found 28/4£590

Sun 31/817:40MKE - LHR

2 stops34h 00mLufthansa

Wed 10/913:30LHR - MKE

2 stops15h 11mLufthansa

Deal found 28/4£603

Wed 13/814:45MKE - LHR

1 stop16h 45mDelta

Sat 23/811:45LHR - MKE

2 stops15h 38mDelta

Deal found 28/4£617

Fri 5/907:00MKE - LHR

2 stops27h 00mScandinavian Airlines

Sun 14/921:05LHR - MKE

3 stops28h 37mScandinavian Airlines

Deal found 28/4£686

Sun 1/618:23MKE - LHR

2 stops18h 32mAer Lingus

Sat 7/621:10LHR - MKE

2 stops32h 10mAer Lingus

Deal found 28/4£986

Best flights from Milwaukee to Heathrow
Discover carefully curated flight deals from Milwaukee to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 April 2025.

Wed 8/1007:00MKE - LHR

2 stops17h 30mAir Canada

Fri 5/1214:30LHR - MKE

2 stops32h 05mAir Canada

Deal found 29/4£547

Wed 8/1013:05MKE - LHR

1 stop13h 50mVirgin Atlantic

Fri 5/1208:50LHR - MKE

1 stop16h 06mVirgin Atlantic

Deal found 29/4£550

Wed 3/912:05MKE - LHR

2 stops14h 30mMultiple Airlines

Wed 10/910:50LHR - MKE

2 stops17h 51mMultiple Airlines

Deal found 28/4£572

Wed 8/1010:50MKE - LHR

1 stop13h 30mUnited Airlines

Fri 5/1214:30LHR - MKE

2 stops29h 13mUnited Airlines

Deal found 29/4£573

Wed 3/914:50MKE - LHR

1 stop15h 25mBritish Airways

Wed 10/907:50LHR - MKE

2 stops19h 37mBritish Airways

Deal found 28/4£574

Wed 3/912:20MKE - LHR

1 stop12h 25mKLM

Wed 10/911:45LHR - MKE

1 stop12h 18mKLM

Deal found 28/4£590

Sun 31/817:40MKE - LHR

2 stops34h 00mLufthansa

Wed 10/913:30LHR - MKE

2 stops15h 11mLufthansa

Deal found 28/4£603

Wed 13/814:45MKE - LHR

1 stop16h 45mDelta

Sat 23/811:45LHR - MKE

2 stops15h 38mDelta

Deal found 28/4£617

Fri 5/907:00MKE - LHR

2 stops27h 00mScandinavian Airlines

Sun 14/921:05LHR - MKE

3 stops28h 37mScandinavian Airlines

Deal found 28/4£686

Fri 16/514:51MKE - LHR

1 stop13h 39mAmerican Airlines

Tue 27/513:10LHR - MKE

1 stop14h 17mAmerican Airlines

Deal found 28/4£762

Sun 1/618:23MKE - LHR

2 stops18h 32mAer Lingus

Sat 7/621:10LHR - MKE

2 stops32h 10mAer Lingus

Deal found 28/4£986

Last-minute flights from Milwaukee to Heathrow
Discover last-minute flight deals from Milwaukee to Heathrow. Data last updated 29 April 2025 and is based on user searches.

Sat 3/509:58MKE - LHR

2 stops16h 02mAer Lingus

Mon 5/508:50LHR - MKE

2 stops18h 37mAer Lingus

Deal found 29/4£1,075

Wed 7/517:47MKE - LHR

1 stop11h 58mLufthansa

Wed 14/508:30LHR - MKE

1 stop12h 40mLufthansa

Deal found 28/4£4,966

Wed 7/515:52MKE - LHR

2 stops12h 08mUnited Airlines

Wed 14/512:00LHR - MKE

2 stops14h 37mUnited Airlines

Deal found 28/4£5,201

Wed 7/508:20MKE - LHR

3 stops16h 10mMultiple Airlines

Wed 14/509:30LHR - MKE

2 stops13h 36mMultiple Airlines

Deal found 28/4£5,524

Fri 16/518:34MKE - LHR

2 stops12h 01mDelta

Tue 27/508:40LHR - MKE

2 stops15h 14mDelta

Deal found 28/4£754

Fri 16/518:23MKE - LHR

1 stop10h 37mAmerican Airlines

Tue 27/509:15LHR - MKE

1 stop14h 21mAmerican Airlines

Deal found 29/4£762

Sat 17/511:25MKE - LHR

2 stops37h 05mUnited Airlines

Mon 26/506:50LHR - MKE

2 stops14h 20mUnited Airlines

Deal found 28/4£757

Mon 19/514:51MKE - LHR

1 stop15h 24mBritish Airways

Mon 26/506:15LHR - MKE

2 stops17h 21mBritish Airways

Deal found 28/4£718

Wed 21/510:15MKE - LHR

2 stops19h 35mMultiple Airlines

Fri 30/506:30LHR - MKE

2 stops16h 10mMultiple Airlines

Deal found 28/4£671

Tue 27/507:00MKE - LHR

2 stops20h 35mScandinavian Airlines

Tue 3/607:05LHR - MKE

2 stops18h 41mScandinavian Airlines

Deal found 28/4£692

Wed 28/512:10MKE - LHR

2 stops14h 25mAir Canada

Fri 6/614:05LHR - MKE

2 stops31h 05mAir Canada

Deal found 29/4£790

Thu 29/512:10MKE - LHR

2 stops22h 30mLufthansa

Thu 5/610:50LHR - MKE

2 stops17h 35mLufthansa

Deal found 29/4£867

One-way flights from Milwaukee to Heathrow
Search for one-way flight options from Milwaukee to Heathrow. Find affordable one-way fares based on user searches. Data last updated 29 April 2025.

Wed 27/813:35MKE - LHR

2 stops17h 50mAer Lingus

Deal found 28/4£342

Sun 10/813:07MKE - LHR

1 stop14h 03mBritish Airways

Deal found 28/4£349

Sun 10/808:35MKE - LHR

3 stops15h 55mAir Canada

Deal found 28/4£354

Thu 12/613:12MKE - LHR

3 stops49h 08mMultiple Airlines

Deal found 28/4£383

Fri 10/1017:50MKE - LHR

1 stop13h 20mKLM

Deal found 27/4£386

Wed 7/514:51MKE - LHR

1 stop13h 39mAmerican Airlines

Deal found 28/4£431

Wed 28/507:00MKE - LHR

2 stops27h 25mScandinavian Airlines

Deal found 28/4£490

Sun 11/519:04MKE - LHR

1 stop12h 06mDelta

Deal found 28/4£528

Sun 1/616:56MKE - LHR

1 stop12h 14mVirgin Atlantic

Deal found 28/4£604

Sat 21/617:29MKE - LHR

1 stop32h 51mUnited Airlines

Deal found 28/4£629

Cheapflights Fare Finder

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

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 8/10

07:00-06:30

2 stops17h 30m

London Heathrow

Fri 5/12

14:30-16:35

2 stops32h 05m

£547

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 8/10

13:05-08:55

1 stop13h 50m

London Heathrow

Fri 5/12

08:50-18:56

1 stop16h 06m

£550

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 3/9

12:05-08:35

2 stops14h 30m

London Heathrow

Wed 10/9

10:50-22:41

2 stops17h 51m

£572

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 8/10

10:50-06:20

1 stop13h 30m

London Heathrow

Fri 5/12

14:30-13:43

2 stops29h 13m

£573

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 3/9

14:50-12:15

1 stop15h 25m

London Heathrow

Wed 10/9

07:50-21:27

2 stops19h 37m

£574

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 3/9

12:20-06:45

1 stop12h 25m

London Heathrow

Wed 10/9

11:45-18:03

1 stop12h 18m

£590

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 31/8

17:40-09:40

2 stops34h 00m

London Heathrow

Wed 10/9

13:30-22:41

2 stops15h 11m

£603

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 13/8

14:45-13:30

1 stop16h 45m

London Heathrow

Sat 23/8

11:45-21:23

2 stops15h 38m

£617

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 5/9

07:00-16:00

2 stops27h 00m

London Heathrow

Sun 14/9

21:05-19:42

3 stops28h 37m

£686

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 16/5

14:51-10:30

1 stop13h 39m

London Heathrow

Tue 27/5

13:10-21:27

1 stop14h 17m

£762

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 21 results

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?

Booking 44 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

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

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

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

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,929 reviews

Delta

8.0

Very Good

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very Good

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very Good

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines

7.3

Good

1,349 reviews

Delta

8.0

Very Good

7,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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 Air Canada is currently your cheapest option to London Heathrow Airport, with prices starting at £547. Additional return tickets that might be worth considering are offered by Virgin Atlantic and United Airlines, with the lowest prices starting at £550 and £573, respectively. Air Canada is currently priced 19% 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 Aer Lingus (£342), British Airways (£349), and Air Canada (£354).
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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How does Cheapflights help users find flights from Milwaukee to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Milwaukee today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Milwaukee to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Milwaukee by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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Cheap flights from Milwaukee to London Heathrow Airport from £342

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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Milwaukee to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Milwaukee to Heathrow

Cheapest flights from Milwaukee to HeathrowExplore 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 29 April 2025.

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 29 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Milwaukee to London Heathrow Airport that are best for you.

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.

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 25 April 2025.

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

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

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.

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?

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

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

Can I find deals for flights from Milwaukee to Heathrow that include hotel bookings?

How can I find direct flights from Milwaukee to Heathrow?

Can I find deals for business class flights from Milwaukee to Heathrow?

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

Travelling to a place near Milwaukee?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Milwaukee to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Milwaukee to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Milwaukee to Heathrow?

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

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

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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 29 April 2025.