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Cheap flights from Wisconsin to London from £152

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 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Air Canada Logo
12:50 - 07:10ORD-LHR
12h 20m1 stop
Air Canada Logo
09:00 - 18:39LHR-ORD
15h 39m2 stops
£370Air Canada
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Wed, 5 Nov - Tue, 11 Nov
Multiple Airlines Logo
12:50 - 07:10ORD-LHR
12h 20m1 stop
Multiple Airlines Logo
09:00 - 18:52LHR-ORD
15h 52m2 stops
£371Multiple Airlines
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Mon, 1 Dec - Tue, 9 Dec
United Airlines Logo
08:40 - 09:35ORD-LHR
18h 55m1 stop
United Airlines Logo
06:50 - 13:10LHR-ORD
11h 20m1 stop
£371United Airlines
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Wed, 22 Oct - Fri, 31 Oct
Austrian Airlines Logo
16:20 - 14:20ORD-LHR
16h 00m1 stop
Austrian Airlines Logo
06:00 - 13:20LHR-ORD
13h 20m1 stop
£374Austrian Airlines
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Mon, 29 Sep - Tue, 21 Oct
Delta Logo
15:50 - 11:25ORD-LHR
13h 35m1 stop
Delta Logo
06:20 - 15:10LHR-ORD
14h 50m1 stop
£375Delta
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Wed, 5 Nov - Thu, 20 Nov
Delta Logo
13:08 - 11:25ORD-LHR
16h 17m1 stop
Delta Logo
08:55 - 16:10LHR-ORD
12h 15m1 stop
£377Delta
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Wed, 8 Oct - Wed, 11 Mar
Iberia Logo
13:43 - 06:20ORD-LHR
10h 37m1 stop
Iberia Logo
14:25 - 17:00LHR-ORD
8h 35mdirect
£379Iberia
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Wed, 8 Oct - Wed, 15 Oct
United Airlines Logo
16:00 - 06:20ORD-LHR
8h 20mdirect
United Airlines Logo
14:10 - 17:20LHR-ORD
9h 10mdirect
£380United Airlines
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Sun, 28 Sep - Tue, 7 Oct
Austrian Airlines Logo
18:00 - 08:20ORD-LHR
8h 20mdirect
Austrian Airlines Logo
15:05 - 13:20LHR-ORD
28h 15m1 stop
£386Austrian Airlines
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Mon, 6 Oct - Mon, 13 Oct
Iberia Logo
15:11 - 08:35MSN-LHR
11h 24m1 stop
Iberia Logo
19:40 - 17:30LHR-MSN
27h 50m2 stops
£555Iberia
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Fri, 20 Feb - Sun, 1 Mar

American Airlines flights from Wisconsin to London Heathrow Airport

Our best American Airlines deals on Wisconsin to London Heathrow Airport flight tickets
American Airlines
25 Sept
ORD13:59Chicago O'Hare Intl
10h 21m
1 stop
LHR06:20London Heathrow
3 Oct
LHR07:40London Heathrow
14h 05m
1 stop
ORD15:45Chicago O'Hare Intl
£396
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American Airlines
16 Oct
MKE16:59Milwaukee-Mitchell
11h 31m
1 stop
LHR10:30London Heathrow
20 Oct
LHR13:10London Heathrow
13h 15m
1 stop
MKE20:25Milwaukee-Mitchell
£515
Find similar

Air Canada flights from Wisconsin to London Heathrow Airport

Our best Air Canada deals on Wisconsin to London Heathrow Airport flight tickets
Air Canada
5 Nov
ORD12:50Chicago O'Hare Intl
12h 20m
1 stop
LHR07:10London Heathrow
11 Nov
LHR09:00London Heathrow
15h 39m
2 stops
ORD18:39Chicago O'Hare Intl
£370
Find similar
Air Canada
28 Sept
ORD10:40Chicago O'Hare Intl
13h 50m
1 stop
LHR06:30London Heathrow
7 Oct
LHR06:50London Heathrow
13h 58m
2 stops
ORD14:48Chicago O'Hare Intl
£372
Find similar
Air Canada
28 Sept
ORD21:25Chicago O'Hare Intl
8h 20m
LHR11:45London Heathrow
7 Oct
LHR14:10London Heathrow
9h 10m
ORD17:20Chicago O'Hare Intl
£374
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momondo Fare Finder

 
Customise your flight search to find flights from Wisconsin to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Wisconsin to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 5/11

12:50-07:10

1 stop12h 20m

London Heathrow

Tue 11/11

09:00-18:39

2 stops15h 39m

£370

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 1/12

12:50-07:10

1 stop12h 20m

London Heathrow

Tue 9/12

09:00-18:52

2 stops15h 52m

£371

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/10

08:40-09:35

1 stop18h 55m

London Heathrow

Fri 31/10

06:50-13:10

1 stop11h 20m

£371

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 29/9

16:20-14:20

1 stop16h 00m

London Heathrow

Tue 21/10

06:00-13:20

1 stop13h 20m

£374

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 5/11

15:50-11:25

1 stop13h 35m

London Heathrow

Thu 20/11

06:20-15:10

1 stop14h 50m

£375

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 8/10

13:08-11:25

1 stop16h 17m

London Heathrow

Wed 11/3

08:55-16:10

1 stop12h 15m

£377

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 8/10

13:43-06:20

1 stop10h 37m

London Heathrow

Wed 15/10

14:25-17:00

Nonstop8h 35m

£379

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 28/9

16:00-06:20

Nonstop8h 20m

London Heathrow

Tue 7/10

14:10-17:20

Nonstop9h 10m

£380

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 6/10

18:00-08:20

Nonstop8h 20m

London Heathrow

Mon 13/10

15:05-13:20

1 stop28h 15m

£386

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Fri 20/2

15:11-08:35

1 stop11h 24m

London Heathrow

Sun 1/3

19:40-17:30

2 stops27h 50m

£555

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

In general, November is the cheapest month to fly from Wisconsin to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £532. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Wisconsin averaging around £555.

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 £671 when searching weeks before you fly. 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 £525 on momondo.

Can stopping save me money on Wisconsin to London Heathrow Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Wisconsin to London Heathrow Airport flight.

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

Fastest flight time

7h 40m

Direct flights

Every day
The fastest flight from Wisconsin to London Heathrow Airport takes 7h 40m
Direct flights go from Wisconsin to London Heathrow Airport every day.
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  • When did momondo last update prices for flights from Wisconsin to London Heathrow Airport?

    Prices for flights from Wisconsin to London Heathrow Airport are updated daily.

  • How many operators does momondo search 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 required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Swanage
Poole
Colchester
Worthing
Salisbury
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Wisconsin to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Wisconsin to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Wisconsin to London with flexible booking policies on momondo?

All flight searches from Wisconsin to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Wisconsin to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Wisconsin.

I’m not ready to book a flight from Wisconsin to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Wisconsin to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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