Cheap flights from Wisconsin to London from $173
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Wisconsin to London departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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1 adult
Economy
0 bags
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Air Canada flights from Wisconsin to London Heathrow Airport
Our best Air Canada deals on Wisconsin to London Heathrow Airport flight tickets
Air Canada![Air Canada]()
Aug 5![Air Canada]()
Aug 28
MKE5:41 pmMilwaukee-Mitchell
30h 49m
2 stops
LHR6:30 amLondon Heathrow
LHR2:05 pmLondon Heathrow
33h 05m
2 stops
MKE5:10 pmMilwaukee-Mitchell
Air Canada![Air Canada]()
Aug 3![Air Canada]()
Aug 29
MKE7:00 amMilwaukee-Mitchell
17h 35m
2 stops
LHR6:35 amLondon Heathrow
LHR2:05 pmLondon Heathrow
31h 04m
2 stops
MKE3:09 pmMilwaukee-Mitchell
British Airways flights from Wisconsin to London Heathrow Airport
Our best British Airways deals on Wisconsin to London Heathrow Airport flight tickets
British Airways![British Airways]()
Jul 16![British Airways]()
Aug 18
ORD5:40 pmChicago O'Hare Intl
7h 40m
LHR7:20 amLondon Heathrow
LHR7:25 pmLondon Heathrow
24h 05m
1 stop
ORD1:30 pmChicago O'Hare Intl
British Airways![British Airways]()
Aug 24![British Airways]()
Sep 1
MKE7:49 pmMilwaukee-Mitchell
10h 26m
1 stop
LHR12:15 pmLondon Heathrow
LHR7:25 pmLondon Heathrow
27h 01m
2 stops
MKE4:26 pmMilwaukee-Mitchell
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How to get the cheapest flight ticket from Wisconsin to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
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Other information
What is the cheapest month to fly to London Heathrow Airport?
The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Wisconsin, with most prices found around $659. If you’re not able to fly to London Heathrow Airport in October, then April is your next best option. Flight prices from Wisconsin to London Heathrow Airport during April average around $801.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $807. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,077.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Wisconsin to London Heathrow Airport in the evening for as low as $761. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $901.
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Wisconsin when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $925 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Wisconsin for as low as $716 on momondo.
What is the cheapest airline that flies from Wisconsin to London Heathrow?
Icelandair and TAP AIR PORTUGAL are the most popular carriers operating from Wisconsin to London Heathrow
What airlines fly to London Heathrow Airport?
American Airlines, British Airways and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from Wisconsin according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 6 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Wisconsin to London Heathrow Airport on average per week?
346 flights are operational weekly from Wisconsin to London Heathrow Airport as of July 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.
How long does it take to fly to London Heathrow Airport?
On average, it takes 9h 30m to fly from Wisconsin to London Heathrow Airport if you fly out of Appleton (the most popular airport in Wisconsin) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Madison and into London Heathrow Airport, then the flight time is around 9h 50m.
Cheap Wisconsin to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Wisconsin to London Heathrow Airport
When did momondo last update prices for flights from Wisconsin to London Heathrow Airport?
Prices for flights from Wisconsin to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Wisconsin to London Heathrow Airport?
As of July 2025, there are 18 operators available to choose from for flights from Wisconsin to London Heathrow Airport.
How old do you have to be to fly from Wisconsin to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Wisconsin to London Heathrow Airport
Compare and see reviews for airlines that fly from Wisconsin to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $555 | Free Cancellation | Rating 7.8 1,366 reviews | |||
| PriceFrom $613 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $613 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $646 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $695 | Free Cancellation | Rating 6.6 7,089 reviews | |||
| PriceFrom $703 | Free Cancellation | Rating 7.4 654 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsGatwick
Hounslow
Croydon
Luton
Slough
Dover
Dartford
Guildford
Stansted
Hayes
Milton Keynes
Salisbury
Swindon
Ilford
Colchester
Stratford-upon-Avon
Chelmsford
Canterbury
Watford
Richmond
Why use momondo?
Why should I use momondo to find a flight deal from Wisconsin to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Wisconsin to London. momondo saves you time and could save you money on your trip.
Can I find flights from Wisconsin to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Wisconsin with this policy.
How can momondo help me find flights from Wisconsin to London?
momondo helps you find the best flight between Wisconsin and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Wisconsin to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Wisconsin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.
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