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

Delta, at $699, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include Air Canada and Virgin Atlantic. These flights start at 23% 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 Delta ($426), Aer Lingus ($457), and British Airways ($466).

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

Travelers 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. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Milwaukee to London Heathrow Airport?

American Airlines, JetBlue and British Airways are the most popular airlines when flying from Milwaukee to London Heathrow Airport.

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

Saturday is generally a great day to depart. Flying on this day could help you save up to 33%.

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

Travelers have found it’s best to book a flight 12 days in advance to save up to 1% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 12 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Milwaukee to London Heathrow Airport 1-2 weeks in advance for as low as $687, or $998 for flights within the next 24 hours.

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

Our data shows that October tends to be the cheapest month to fly to London Heathrow Airport from Milwaukee. Users have commonly found prices around $938 for the month, but tickets can be as low as $611. Due to multiple factors, prepare for potentially higher prices in December.

Most accurate provider : When it comes to deals on Milwaukee-London Heathrow Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Milwaukee-London Heathrow Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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. 6 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.

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.

$426+ Flights from Milwaukee to London Heathrow Airport - Compare & Save Big

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Milwaukee-Mitchell to London Heathrow are usually found in October or February, booked 47 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from Milwaukee to Heathrow

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$699 (Delta)
One-way from	$426 (Delta)
Popular in	December
Cheapest in	October
Average price	$801

Provider with most accurate pricing for Milwaukee-Mitchell-London Heathrow flight deals.

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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-London Heathrow flights.

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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. 7% potential increase in price ($73 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 April 29, 2025.

Wed 10/112:20 pmMKE - LHR

1 stop19h 10mDelta

Thu 10/166:15 amLHR - MKE

2 stops17h 48mDelta

Deal found 4/29

$699

Wed 10/87:00 amMKE - LHR

2 stops17h 30mAir Canada

Fri 12/52:30 pmLHR - MKE

2 stops32h 05mAir Canada

Deal found 4/29

$731

Wed 10/81:05 pmMKE - LHR

1 stop13h 50mVirgin Atlantic

Fri 12/58:50 amLHR - MKE

1 stop16h 06mVirgin Atlantic

Deal found 4/29

$735

Wed 10/12:50 pmMKE - LHR

1 stop10h 30mAmerican Airlines

Thu 10/1612:15 pmLHR - MKE

1 stop10h 58mAmerican Airlines

Deal found 4/29

$748

Wed 9/312:05 pmMKE - LHR

2 stops14h 30mMultiple Airlines

Wed 9/1010:50 amLHR - MKE

2 stops17h 51mMultiple Airlines

Deal found 4/28

$764

Wed 10/810:50 amMKE - LHR

1 stop13h 30mUnited Airlines

Fri 12/52:30 pmLHR - MKE

2 stops29h 13mUnited Airlines

Deal found 4/29

$765

Wed 9/32:50 pmMKE - LHR

1 stop15h 25mBritish Airways

Wed 9/107:50 amLHR - MKE

2 stops19h 37mBritish Airways

Deal found 4/28

$767

Wed 9/312:20 pmMKE - LHR

1 stop12h 25mKLM

Wed 9/1011:45 amLHR - MKE

1 stop12h 18mKLM

Deal found 4/28

$788

Sun 8/315:40 pmMKE - LHR

2 stops34h 00mLufthansa

Wed 9/101:30 pmLHR - MKE

2 stops15h 11mLufthansa

Deal found 4/28

$806

Fri 9/57:00 amMKE - LHR

2 stops27h 00mScandinavian Airlines

Sun 9/149:05 pmLHR - MKE

3 stops28h 37mScandinavian Airlines

Deal found 4/28

$916

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

Wed 10/112:20 pmMKE - LHR

1 stop19h 10mDelta

Thu 10/166:15 amLHR - MKE

2 stops17h 48mDelta

Deal found 4/29

$699

Wed 10/87:00 amMKE - LHR

2 stops17h 30mAir Canada

Fri 12/52:30 pmLHR - MKE

2 stops32h 05mAir Canada

Deal found 4/29

$731

Wed 10/81:05 pmMKE - LHR

1 stop13h 50mVirgin Atlantic

Fri 12/58:50 amLHR - MKE

1 stop16h 06mVirgin Atlantic

Deal found 4/29

$735

Wed 10/12:50 pmMKE - LHR

1 stop10h 30mAmerican Airlines

Thu 10/1612:15 pmLHR - MKE

1 stop10h 58mAmerican Airlines

Deal found 4/29

$748

Wed 9/312:05 pmMKE - LHR

2 stops14h 30mMultiple Airlines

Wed 9/1010:50 amLHR - MKE

2 stops17h 51mMultiple Airlines

Deal found 4/28

$764

Wed 10/810:50 amMKE - LHR

1 stop13h 30mUnited Airlines

Fri 12/52:30 pmLHR - MKE

2 stops29h 13mUnited Airlines

Deal found 4/29

$765

Wed 9/32:50 pmMKE - LHR

1 stop15h 25mBritish Airways

Wed 9/107:50 amLHR - MKE

2 stops19h 37mBritish Airways

Deal found 4/28

$767

Wed 9/312:20 pmMKE - LHR

1 stop12h 25mKLM

Wed 9/1011:45 amLHR - MKE

1 stop12h 18mKLM

Deal found 4/28

$788

Sun 8/315:40 pmMKE - LHR

2 stops34h 00mLufthansa

Wed 9/101:30 pmLHR - MKE

2 stops15h 11mLufthansa

Deal found 4/28

$806

Fri 9/57:00 amMKE - LHR

2 stops27h 00mScandinavian Airlines

Sun 9/149:05 pmLHR - MKE

3 stops28h 37mScandinavian Airlines

Deal found 4/28

$916

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

Sat 5/39:58 amMKE - LHR

2 stops16h 02mAer Lingus

Mon 5/58:50 amLHR - MKE

2 stops18h 37mAer Lingus

Deal found 4/29

$1,437

Sun 5/46:37 pmMKE - LHR

1 stop9h 53mBritish Airways

Tue 5/209:15 amLHR - MKE

1 stop10h 47mBritish Airways

Deal found 4/29

$963

Sun 5/48:20 amMKE - LHR

3 stops16h 10mAir Canada

Tue 5/208:30 amLHR - MKE

3 stops19h 45mAir Canada

Deal found 4/29

$1,180

Tue 5/611:32 amMKE - LHR

1 stop13h 08mMultiple Airlines

Wed 5/2111:05 amLHR - MKE

1 stop12h 31mMultiple Airlines

Deal found 4/29

$923

Tue 5/67:00 amMKE - LHR

3 stops23h 55mScandinavian Airlines

Wed 5/217:05 amLHR - MKE

2 stops18h 41mScandinavian Airlines

Deal found 4/29

$2,206

Wed 5/75:47 pmMKE - LHR

1 stop11h 58mLufthansa

Wed 5/148:30 amLHR - MKE

1 stop12h 40mLufthansa

Deal found 4/28

$6,635

Wed 5/73:52 pmMKE - LHR

2 stops12h 08mUnited Airlines

Wed 5/1412:00 pmLHR - MKE

2 stops14h 37mUnited Airlines

Deal found 4/28

$6,950

Fri 5/166:34 pmMKE - LHR

2 stops12h 01mDelta

Tue 5/278:40 amLHR - MKE

2 stops15h 14mDelta

Deal found 4/28

$1,008

Fri 5/166:23 pmMKE - LHR

1 stop10h 37mAmerican Airlines

Tue 5/279:15 amLHR - MKE

1 stop14h 21mAmerican Airlines

Deal found 4/29

$1,018

Sat 5/1711:25 amMKE - LHR

2 stops37h 05mUnited Airlines

Mon 5/266:50 amLHR - MKE

2 stops14h 20mUnited Airlines

Deal found 4/28

$1,012

Mon 5/192:51 pmMKE - LHR

1 stop15h 24mBritish Airways

Mon 5/266:15 amLHR - MKE

2 stops17h 21mBritish Airways

Deal found 4/28

$959

Wed 5/2110:15 amMKE - LHR

2 stops19h 35mMultiple Airlines

Fri 5/306:30 amLHR - MKE

2 stops16h 10mMultiple Airlines

Deal found 4/28

$897

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 April 29, 2025.

Sun 8/101:15 pmMKE - LHR

2 stops14h 00mDelta

Deal found 4/29

$426

Wed 8/277:29 pmMKE - LHR

1 stop9h 26mMultiple Airlines

Deal found 4/29

$446

Wed 8/271:35 pmMKE - LHR

2 stops17h 50mAer Lingus

Deal found 4/28

$457

Sun 8/101:07 pmMKE - LHR

1 stop14h 03mBritish Airways

Deal found 4/28

$466

Sun 8/108:35 amMKE - LHR

3 stops15h 55mAir Canada

Deal found 4/29

$473

Fri 10/105:50 pmMKE - LHR

1 stop13h 20mKLM

Deal found 4/27

$516

Wed 5/72:51 pmMKE - LHR

1 stop13h 39mAmerican Airlines

Deal found 4/28

$576

Wed 5/287:00 amMKE - LHR

2 stops27h 25mScandinavian Airlines

Deal found 4/28

$655

Sun 6/14:56 pmMKE - LHR

1 stop12h 14mVirgin Atlantic

Deal found 4/28

$807

Sat 6/215:29 pmMKE - LHR

1 stop32h 51mUnited Airlines

Deal found 4/28

$840

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 5/21

10:15 am-11:50 am

2 stops19h 35m

London Heathrow

Fri 5/30

6:30 am-4:40 pm

2 stops16h 10m

$897

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 5/27

7:00 am-9:35 am

2 stops20h 35m

London Heathrow

Tue 6/3

7:05 am-7:46 pm

2 stops18h 41m

$924

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 5/19

2:51 pm-12:15 pm

1 stop15h 24m

London Heathrow

Mon 5/26

6:15 am-5:36 pm

2 stops17h 21m

$959

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 5/16

6:34 pm-12:35 pm

2 stops12h 01m

London Heathrow

Tue 5/27

8:40 am-5:54 pm

2 stops15h 14m

$1,008

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sat 5/17

11:25 am-6:30 am

2 stops37h 05m

London Heathrow

Mon 5/26

6:50 am-3:10 pm

2 stops14h 20m

$1,012

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 5/16

6:23 pm-11:00 am

1 stop10h 37m

London Heathrow

Tue 5/27

9:15 am-5:36 pm

1 stop14h 21m

$1,018

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 5/28

12:10 pm-8:35 am

2 stops14h 25m

London Heathrow

Fri 6/6

2:05 pm-3:10 pm

2 stops31h 05m

$1,056

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 7/22

6:05 pm-1:30 pm

1 stop13h 25m

London Heathrow

Sun 7/27

1:05 pm-8:46 pm

1 stop13h 41m

$1,103

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Mon 6/2

5:49 pm-7:40 pm

2 stops19h 51m

London Heathrow

Sun 6/8

8:25 pm-9:00 pm

2 stops30h 35m

$1,156

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Sun 6/1

6:23 pm-6:55 pm

2 stops18h 32m

London Heathrow

Sat 6/7

9:10 pm-11:20 pm

2 stops32h 10m

$1,318

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 20 results

Compare providers for flights from Milwaukee to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Heathrow in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Milwaukee-London Heathrow Airport flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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

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

The best time to book flights from Milwaukee to London Heathrow Airport is 44 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 $1,110). 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?

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

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

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 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

7,929 reviews

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

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

1,334 reviews

Delta

8.0

Very good

7,929 reviews

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

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

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

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?
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. 6 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?
Delta, at $699, was found to be the cheapest airline from Milwaukee to London Heathrow Airport.Alternate airlines to your destination round-trip include Air Canada and Virgin Atlantic. These flights start at 23% 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 Delta ($426), Aer Lingus ($457), and British Airways ($466).
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 $1,110). 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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Top 6 airlines flying from Milwaukee to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$566	Average$1,054	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$613	Average$797	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$613	Average$819	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$659	Average$927	FlexibilityNo cancel fee	On-time69%
British Airways	Cheapest$695	Average$827	FlexibilityNo cancel fee	On-time70%
Virgin Atlantic	Cheapest$703	Average$922	FlexibilityNo cancel fee	On-time72%

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$426+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Milwaukee to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Milwaukee-Mitchell to London Heathrow are usually found in October or February, booked 47 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from Milwaukee to Heathrow

Most accurate provider

Most trusted provider

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 April 29, 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 April 29, 2025.

Cheapflights Fare Finder

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

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 April.

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 round-trip flight from Milwaukee to Heathrow. Price data was last updated on April 25, 2025.

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

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 April 29, 2025.

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

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?

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Alternative routes for Milwaukee to Heathrow

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Top 6 airlines flying from Milwaukee to Heathrow

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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 April 29, 2025.