MKE - LHR

$342 Find Cheap Flights from Milwaukee to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to Heathrow departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to London, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$795
Typical prices: $739-$695
Lufthansa
Tue 4/21Tue 4/28
MKE - LHR • 2 stops
Cheapest one-way
$342
Virgin Atlantic
Sun 7/12
MKE - LHR • 2 stops
Top airlines
Cheapest • from $795 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Milwaukee and Heathrow. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $618 (round-trip)
Shortest trip • 9h 55m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Milwaukee to Heathrow (MKE-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Milwaukee to Heathrow

Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
12:13 pm - 10:40 am
MKE
-
LHR
16h 27m
2 stops
Lufthansa Logo
10:50 am - 10:30 pm
LHR
-
MKE
17h 40m
2 stops
$795Lufthansa
Mon, Apr 20 - Thu, Apr 30
Scandinavian Airlines Logo
7:10 am - 9:35 pm
MKE
-
LHR
32h 25m
2 stops
Scandinavian Airlines Logo
7:05 am - 8:25 pm
LHR
-
MKE
19h 20m
2 stops
$799Scandinavian Airlines
Wed, Apr 22 - Wed, Apr 29
Lufthansa Logo
7:41 pm - 6:40 pm
MKE
-
LHR
16h 59m
2 stops
Lufthansa Logo
1:30 pm - 10:30 pm
LHR
-
MKE
15h 00m
2 stops
$804Lufthansa
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
7:41 pm - 3:40 pm
MKE
-
LHR
13h 59m
2 stops
Lufthansa Logo
9:00 am - 8:48 pm
LHR
-
MKE
17h 48m
2 stops
$816Lufthansa
Wed, May 6 - Wed, May 13
Iberia Logo
1:53 pm - 10:30 am
MKE
-
LHR
14h 37m
1 stop
Iberia Logo
6:15 am - 5:07 pm
LHR
-
MKE
16h 52m
2 stops
$819Iberia
Tue, Apr 21 - Tue, Apr 28
Iberia Logo
6:40 pm - 12:15 pm
MKE
-
LHR
11h 35m
1 stop
Iberia Logo
8:00 pm - 5:11 pm
LHR
-
MKE
27h 11m
2 stops
$822Iberia
Sun, May 3 - Tue, May 19
United Airlines Logo
3:25 pm - 9:00 am
MKE
-
LHR
11h 35m
1 stop
United Airlines Logo
6:50 am - 2:27 pm
LHR
-
MKE
13h 37m
2 stops
$823United Airlines
Thu, May 7 - Thu, May 14
Scandinavian Airlines Logo
7:15 am - 6:50 pm
MKE
-
LHR
29h 35m
2 stops
Scandinavian Airlines Logo
7:05 am - 9:52 pm
LHR
-
MKE
20h 47m
2 stops
$826Scandinavian Airlines
Sun, May 3 - Tue, May 19
United Airlines Logo
9:37 am - 6:55 am
MKE
-
LHR
15h 18m
2 stops
United Airlines Logo
6:50 am - 2:27 pm
LHR
-
MKE
13h 37m
2 stops
$827United Airlines
Wed, May 6 - Wed, May 13
United Airlines Logo
5:10 am - 6:30 am
MKE
-
LHR
19h 20m
2 stops
United Airlines Logo
8:40 am - 6:57 pm
LHR
-
MKE
16h 17m
2 stops
$828United Airlines
Booking Insights

KAYAK's insights & trends for Milwaukee to Heathrow flights

Get data-powered insights and trends into flights from Milwaukee to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Milwaukee to London Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Milwaukee to London Heathrow Airport departing in April.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Milwaukee to London Heathrow Airport is January, where tickets cost $659 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,330 and $1,085 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Milwaukee to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Milwaukee to London Heathrow Airport, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$342
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Milwaukee to London Heathrow Airport

When to book flights from Milwaukee to Heathrow

Are your dates flexible? Find out the best times to travel from Milwaukee to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Milwaukee to London Heathrow Airport flights

  • What is the cheapest flight from Milwaukee to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Milwaukee to London Heathrow Airport was $342 for a one-way ticket and $795 for a round-trip.

  • Do I need a passport to fly between Milwaukee and London Heathrow Airport?

    A passport is required to fly from Milwaukee to London Heathrow Airport.

  • Which airports will I be using when flying from Milwaukee to London Heathrow Airport?

    On your way to London Heathrow Airport, you’ll fly out from Milwaukee-Mitchell. You’ll be landing at London Heathrow.

  • Which aircraft models fly most regularly from Milwaukee to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Milwaukee to London Heathrow Airport?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Milwaukee and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Milwaukee to London, Delta or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from Milwaukee to London are Delta and Virgin Atlantic. With an average price for the route of $851 and an overall rating of 7.9, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $850 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Milwaukee to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Milwaukee to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Milwaukee to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Milwaukee is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Milwaukee to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Milwaukee to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Milwaukee to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Milwaukee to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8336 reviews
7.9Comfort
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

I took seat 15A in anticipation of window seat, there is no window.

2.0 MediocreDileep, Mar 2026
SMF - ATL
Read more Delta reviews

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

The cabin temperature was nice and cool. The wifi was not working.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

Entertainment is ok! Boarding and seat with zone is terrible. I paid for the seats but you didn’t give me what I paid for which is exit isles.

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Flights were on time. Free Wifi on plane. Everything was well organized.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

British Airways is an excellent travel service. Comfort, food and airline personnel.

Good level of service. Comfortable airplane. However, security is always a hassle at LHR. I always try to avoid that airport at all cost if possible.

Everything smooth. The only thing is that my connecting flight in the US to my final destination was delayed. The time changed 4 times. For the rest, everything on time without issues

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Everything you need to know for your flight from Milwaukee to Heathrow

Information on your arrival and departure airports