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Cheap flights from Wisconsin to London from £189

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 18/1. 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

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TAP AIR PORTUGAL Logo
19:10 - 22:40ORD-LHR
21h 30m1 stop
TAP AIR PORTUGAL Logo
19:55 - 14:45LHR-ORD
24h 50m1 stop
£423TAP AIR PORTUGAL
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Wed, 3 Dec - Sat, 13 Dec
Scandinavian Airlines Logo
19:10 - 16:25ORD-LHR
15h 15m2 stops
Scandinavian Airlines Logo
10:20 - 16:45LHR-ORD
12h 25m1 stop
£424Scandinavian Airlines
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Sun, 11 Jan - Sat, 17 Jan
Icelandair Logo
19:25 - 11:55ORD-LHR
10h 30m1 stop
Icelandair Logo
13:05 - 18:15LHR-ORD
11h 10m1 stop
£426Icelandair
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Wed, 22 Apr - Mon, 27 Apr
Icelandair Logo
18:30 - 10:50ORD-LHR
10h 20m1 stop
Icelandair Logo
20:35 - 17:20LHR-ORD
26h 45m1 stop
£426Icelandair
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Sun, 7 Dec - Tue, 16 Dec
Delta Logo
11:53 - 10:45GRB-LHR
17h 52m2 stops
Delta Logo
10:45 - 22:00LHR-GRB
16h 15m1 stop
£455Delta
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Wed, 11 Mar - Fri, 13 Mar
Lufthansa Logo
15:48 - 11:15MKE-LHR
13h 27m1 stop
Lufthansa Logo
07:40 - 21:59LHR-MKE
20h 19m2 stops
£468Lufthansa
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Wed, 31 Dec - Thu, 15 Jan
Lufthansa Logo
11:29 - 09:10MKE-LHR
15h 41m1 stop
Lufthansa Logo
07:40 - 21:59LHR-MKE
20h 19m2 stops
£473Lufthansa
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Wed, 7 Jan - Thu, 15 Jan
Delta Logo
07:00 - 07:05CWA-LHR
18h 05m1 stop
Delta Logo
06:30 - 21:15LHR-CWA
20h 45m2 stops
£478Delta
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Wed, 4 Feb - Sun, 8 Feb
United Airlines Logo
14:54 - 07:55GRB-LHR
12h 01m1 stop
United Airlines Logo
06:50 - 18:57LHR-GRB
17h 07m2 stops
£484United Airlines
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Tue, 10 Mar - Wed, 18 Mar
United Airlines Logo
06:30 - 05:55MSN-LHR
17h 25m1 stop
United Airlines Logo
06:50 - 22:32LHR-MSN
20h 42m2 stops
£484United Airlines
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Sun, 1 Mar - Fri, 13 Mar

Lufthansa flights from Wisconsin to London Heathrow Airport

Our best Lufthansa deals on Wisconsin to London Heathrow Airport flight tickets
Lufthansa
1 Dec
ORD21:50Chicago O'Hare Intl
15h 45m
1 stop
LHR19:35London Heathrow
24 Dec
LHR11:10London Heathrow
13h 15m
1 stop
ORD18:25Chicago O'Hare Intl
£437
Find similar
Lufthansa
30 Nov
ORD22:35Chicago O'Hare Intl
11h 15m
1 stop
LHR15:50London Heathrow
25 Dec
LHR11:10London Heathrow
13h 15m
1 stop
ORD18:25Chicago O'Hare Intl
£446
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Lufthansa
26 Jan
MKE11:29Milwaukee-Mitchell
16h 56m
1 stop
LHR10:25London Heathrow
6 Feb
LHR06:35London Heathrow
21h 24m
2 stops
MKE21:59Milwaukee-Mitchell
£474
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SWISS flights from Wisconsin to London Heathrow Airport

Our best SWISS deals on Wisconsin to London Heathrow Airport flight tickets
SWISS
24 Nov
ORD21:05Chicago O'Hare Intl
8h 10m
LHR11:15London Heathrow
2 Dec
LHR20:05London Heathrow
26h 15m
1 stop
ORD16:20Chicago O'Hare Intl
£457
Find similar
SWISS
30 Nov
ORD18:50Chicago O'Hare Intl
15h 30m
1 stop
LHR16:20London Heathrow
24 Dec
LHR06:00London Heathrow
16h 20m
1 stop
ORD16:20Chicago O'Hare Intl
£460
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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 20 November 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 3/12

19:10-22:40

1 stop21h 30m

London Heathrow

Sat 13/12

19:55-14:45

1 stop24h 50m

£423

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/1

19:10-16:25

2 stops15h 15m

London Heathrow

Sat 17/1

10:20-16:45

1 stop12h 25m

£424

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/4

19:25-11:55

1 stop10h 30m

London Heathrow

Mon 27/4

13:05-18:15

1 stop11h 10m

£426

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 7/12

18:30-10:50

1 stop10h 20m

London Heathrow

Tue 16/12

20:35-17:20

1 stop26h 45m

£426

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Wed 11/3

11:53-10:45

2 stops17h 52m

London Heathrow

Fri 13/3

10:45-22:00

1 stop16h 15m

£455

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 31/12

15:48-11:15

1 stop13h 27m

London Heathrow

Thu 15/1

07:40-21:59

2 stops20h 19m

£468

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 7/1

11:29-09:10

1 stop15h 41m

London Heathrow

Thu 15/1

07:40-21:59

2 stops20h 19m

£473

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Wed 4/2

07:00-07:05

1 stop18h 05m

London Heathrow

Sun 8/2

06:30-21:15

2 stops20h 45m

£478

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 10/3

14:54-07:55

1 stop12h 01m

London Heathrow

Wed 18/3

06:50-18:57

2 stops17h 07m

£484

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Sun 1/3

06:30-05:55

1 stop17h 25m

London Heathrow

Fri 13/3

06:50-22:32

2 stops20h 42m

£484

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, August 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 £607. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Wisconsin averaging around £612.

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 £802 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 £606 on momondo.

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

You could potentially save up to 21% 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
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Dover
Colchester
Chelmsford
Hayes

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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