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Cheap flights from Wisconsin to London from £235

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 14/7. 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
1 adult, Economy, 0 bags
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Find the cheapest flights from Wisconsin to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
15:20 - 12:00
CWA
-
LHR
14h 40m
1 stop
United Airlines Logo
11:05 - 22:45
LHR
-
CWA
41h 40m
2 stops
£558United Airlines
Sun, 6 Dec - Tue, 8 Dec
United Airlines Logo
08:10 - 11:05
CWA
-
LHR
20h 55m
2 stops
United Airlines Logo
11:05 - 22:45
LHR
-
CWA
41h 40m
2 stops
£561United Airlines
Sun, 6 Dec - Tue, 8 Dec
Iberia Logo
20:14 - 12:15
MKE
-
LHR
10h 01m
1 stop
Iberia Logo
06:15 - 20:03
LHR
-
MKE
19h 48m
2 stops
£643Iberia
Tue, 15 Sep - Wed, 23 Sep
Iberia Logo
12:56 - 10:50
MSN
-
LHR
15h 54m
1 stop
Iberia Logo
06:15 - 19:50
LHR
-
MSN
19h 35m
2 stops
£644Iberia
Sun, 20 Sep - Tue, 13 Oct
Delta Logo
07:00 - 07:10
GRB
-
LHR
18h 10m
1 stop
Delta Logo
08:40 - 22:29
LHR
-
GRB
19h 49m
2 stops
£654Delta
Tue, 15 Sep - Fri, 2 Oct
Delta Logo
09:38 - 07:10
MKE
-
LHR
15h 32m
1 stop
Delta Logo
09:55 - 20:10
LHR
-
MKE
16h 15m
2 stops
£654Delta
Tue, 22 Sep - Tue, 29 Sep
British Airways Logo
11:18 - 07:40
LSE
-
LHR
14h 22m
1 stop
British Airways Logo
06:15 - 17:54
LHR
-
LSE
17h 39m
2 stops
£657British Airways
Tue, 6 Oct - Tue, 13 Oct
British Airways Logo
16:35 - 10:25
MSN
-
LHR
11h 50m
1 stop
British Airways Logo
07:35 - 23:33
LHR
-
MSN
21h 58m
2 stops
£659British Airways
Tue, 3 Nov - Wed, 11 Nov
Multiple Airlines Logo
10:05 - 10:50
GRB
-
LHR
18h 45m
1 stop
Multiple Airlines Logo
19:30 - 00:13
LHR
-
GRB
34h 43m
2 stops
£661Multiple Airlines
Sun, 13 Sep - Wed, 23 Sep
Multiple Airlines Logo
13:18 - 12:15
MKE
-
LHR
16h 57m
1 stop
Multiple Airlines Logo
19:25 - 21:59
LHR
-
MKE
32h 34m
2 stops
£662Multiple Airlines
Wed, 23 Sep - Mon, 28 Sep

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JetBlue flights from Wisconsin to London Heathrow Airport

Our best JetBlue deals on Wisconsin to London Heathrow Airport flight tickets
JetBlue
1 Sept
MKE09:36Milwaukee-Mitchell
14h 54m
1 stop
LHR06:30London Heathrow
9 Sept
LHR08:40London Heathrow
31h 55m
1 stop
MKE10:35Milwaukee-Mitchell
£670
JetBlue
8 Sept
MKE09:36Milwaukee-Mitchell
14h 54m
1 stop
LHR06:30London Heathrow
23 Sept
LHR08:40London Heathrow
31h 55m
1 stop
MKE10:35Milwaukee-Mitchell
£676
JetBlue
17 Jul
ORD17:27Chicago O'Hare Intl
21h 18m
1 stop
LHR20:45London Heathrow
31 Aug
LHR08:15London Heathrow
19h 40m
1 stop
ORD21:55Chicago O'Hare Intl
£701

Finnair flights from Wisconsin to London Heathrow Airport

Our best Finnair deals on Wisconsin to London Heathrow Airport flight tickets
Finnair
6 Sept
ORD21:15Chicago O'Hare Intl
8h 00m
LHR11:15London Heathrow
17 Sept
LHR07:30London Heathrow
16h 20m
1 stop
ORD17:50Chicago O'Hare Intl
£692
Finnair
10 Aug
ORD21:15Chicago O'Hare Intl
8h 00m
LHR11:15London Heathrow
19 Aug
LHR15:15London Heathrow
9h 00m
ORD18:15Chicago O'Hare Intl
£707
Finnair
10 Aug
ORD21:15Chicago O'Hare Intl
8h 00m
LHR11:15London Heathrow
19 Aug
LHR15:15London Heathrow
9h 00m
ORD18:15Chicago O'Hare Intl
£708

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 June 2026.
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

Cheapest return flight

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Sun 6/12

15:20-12:00

1 stop14h 40m

London Heathrow

Tue 8/12

11:05-22:45

2 stops41h 40m

£558

WausauLondon

CWA - LHR

CWALHR

Wausau Central Wisconsin

Sun 6/12

08:10-11:05

2 stops20h 55m

London Heathrow

Tue 8/12

11:05-22:45

2 stops41h 40m

£561
Fastest return journey

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 15/9

20:14-12:15

1 stop10h 01m

London Heathrow

Wed 23/9

06:15-20:03

2 stops19h 48m

£643

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Sun 20/9

12:56-10:50

1 stop15h 54m

London Heathrow

Tue 13/10

06:15-19:50

2 stops19h 35m

£644

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Tue 15/9

07:00-07:10

1 stop18h 10m

London Heathrow

Fri 2/10

08:40-22:29

2 stops19h 49m

£654

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 22/9

09:38-07:10

1 stop15h 32m

London Heathrow

Tue 29/9

09:55-20:10

2 stops16h 15m

£654

La CrosseLondon

LSE - LHR

LSELHR

La Crosse

Tue 6/10

11:18-07:40

1 stop14h 22m

London Heathrow

Tue 13/10

06:15-17:54

2 stops17h 39m

£657

MadisonLondon

MSN - LHR

MSNLHR

Madison Truax Field

Tue 3/11

16:35-10:25

1 stop11h 50m

London Heathrow

Wed 11/11

07:35-23:33

2 stops21h 58m

£659

Green BayLondon

GRB - LHR

GRBLHR

Green Bay Austin-Straubel

Sun 13/9

10:05-10:50

1 stop18h 45m

London Heathrow

Wed 23/9

19:30-00:13

2 stops34h 43m

£661

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 23/9

13:18-12:15

1 stop16h 57m

London Heathrow

Mon 28/9

19:25-21:59

2 stops32h 34m

£662

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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, October 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 £424. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Wisconsin averaging around £433.

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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Frequently asked questions about flying 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 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
Wembley
Milton Keynes
Gatwick
Luton
Stratford-upon-Avon
Slough
Southend-on-Sea
Maidstone
Northampton
Ipswich
Swindon
Ilford
Canterbury
Poole
Folkestone
Guildford
Hayes
Bedford
Chichester

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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