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Cheap flights from Wisconsin to London from £246

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 7/9. 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

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
07:00 - 09:20
MKE
-
LHR
44h 20m
2 stops
Scandinavian Airlines Logo
07:05 - 20:09
LHR
-
MKE
19h 04m
2 stops
£615Scandinavian Airlines
Fri, 18 Sep - Mon, 21 Sep
Scandinavian Airlines Logo
19:15 - 16:25
ORD
-
LHR
15h 10m
2 stops
Scandinavian Airlines Logo
07:05 - 16:10
LHR
-
ORD
15h 05m
2 stops
£635Scandinavian Airlines
Mon, 21 Sep - Mon, 28 Sep
Scandinavian Airlines Logo
19:15 - 16:25
ORD
-
LHR
15h 10m
2 stops
Scandinavian Airlines Logo
15:35 - 16:10
LHR
-
ORD
30h 35m
2 stops
£636Scandinavian Airlines
Sun, 16 Aug - Sat, 22 Aug
Scandinavian Airlines Logo
19:15 - 18:50
ORD
-
LHR
17h 35m
2 stops
Scandinavian Airlines Logo
15:35 - 16:10
LHR
-
ORD
30h 35m
2 stops
£636Scandinavian Airlines
Sun, 6 Sep - Sat, 19 Sep
Finnair Logo
17:00 - 06:50
ORD
-
LHR
7h 50mdirect
Finnair Logo
10:20 - 17:50
LHR
-
ORD
13h 30m
1 stop
£638Finnair
Sun, 6 Sep - Thu, 17 Sep
SWISS Logo
19:05 - 16:25
ORD
-
LHR
15h 20m
1 stop
SWISS Logo
06:00 - 12:35
LHR
-
ORD
12h 35m
1 stop
£639SWISS
Sun, 30 Aug - Tue, 8 Sep
TAP AIR PORTUGAL Logo
18:00 - 17:45
ORD
-
LHR
17h 45m
1 stop
TAP AIR PORTUGAL Logo
18:45 - 16:00
LHR
-
ORD
27h 15m
1 stop
£642TAP AIR PORTUGAL
Thu, 1 Oct - Tue, 6 Oct
Iberia Logo
20:16 - 12:15
MKE
-
LHR
9h 59m
1 stop
Iberia Logo
06:15 - 17:40
LHR
-
MKE
17h 25m
2 stops
£648Iberia
Wed, 14 Oct - Wed, 21 Oct
Iberia Logo
20:16 - 12:15
MKE
-
LHR
9h 59m
1 stop
Iberia Logo
10:50 - 17:40
LHR
-
MKE
36h 50m
2 stops
£657Iberia
Tue, 6 Oct - Mon, 12 Oct
SWISS Logo
11:32 - 07:55
MSP
-
LHR
14h 23m
2 stops
SWISS Logo
06:00 - 16:13
LHR
-
MSP
16h 13m
2 stops
£787SWISS
Wed, 5 Aug - Fri, 14 Aug

Finnair flights from Wisconsin to London Heathrow Airport

Our best Finnair deals on Wisconsin to London Heathrow Airport flight tickets
Finnair
6 Sept
ORD17:00Chicago O'Hare Intl
7h 50m
LHR06:50London Heathrow
17 Sept
LHR10:20London Heathrow
13h 30m
1 stop
ORD17:50Chicago O'Hare Intl
£638
Finnair
7 Oct
ORD17:55Chicago O'Hare Intl
7h 45m
LHR07:40London Heathrow
21 Oct
LHR10:20London Heathrow
13h 30m
1 stop
ORD17:50Chicago O'Hare Intl
£645
Finnair
2 Sept
ORD20:40Chicago O'Hare Intl
7h 50m
LHR10:30London Heathrow
8 Sept
LHR10:20London Heathrow
13h 30m
1 stop
ORD17:50Chicago O'Hare Intl
£664

Scandinavian Airlines flights from Wisconsin to London Heathrow Airport

Our best Scandinavian Airlines deals on Wisconsin to London Heathrow Airport flight tickets
Scandinavian Airlines
18 Sept
MKE07:00Milwaukee-Mitchell
44h 20m
2 stops
LHR09:20London Heathrow
21 Sept
LHR07:05London Heathrow
19h 04m
2 stops
MKE20:09Milwaukee-Mitchell
£615
Scandinavian Airlines
6 Sept
ORD19:15Chicago O'Hare Intl
17h 35m
2 stops
LHR18:50London Heathrow
19 Sept
LHR15:35London Heathrow
30h 35m
2 stops
ORD16:10Chicago O'Hare Intl
£636
Scandinavian Airlines
6 Sept
ORD19:15Chicago O'Hare Intl
16h 25m
1 stop
LHR17:40London Heathrow
17 Sept
LHR07:05London Heathrow
15h 05m
2 stops
ORD16:10Chicago O'Hare Intl
£639

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 May 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

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Fri 18/9

07:00-09:20

2 stops44h 20m

London Heathrow

Mon 21/9

07:05-20:09

2 stops19h 04m

£615

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 21/9

19:15-16:25

2 stops15h 10m

London Heathrow

Mon 28/9

07:05-16:10

2 stops15h 05m

£635

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 16/8

19:15-16:25

2 stops15h 10m

London Heathrow

Sat 22/8

15:35-16:10

2 stops30h 35m

£636

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 6/9

19:15-18:50

2 stops17h 35m

London Heathrow

Sat 19/9

15:35-16:10

2 stops30h 35m

£636
Fastest return journey

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 6/9

17:00-06:50

Nonstop7h 50m

London Heathrow

Thu 17/9

10:20-17:50

1 stop13h 30m

£638

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 30/8

19:05-16:25

1 stop15h 20m

London Heathrow

Tue 8/9

06:00-12:35

1 stop12h 35m

£639

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 1/10

18:00-17:45

1 stop17h 45m

London Heathrow

Tue 6/10

18:45-16:00

1 stop27h 15m

£642

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Wed 14/10

20:16-12:15

1 stop9h 59m

London Heathrow

Wed 21/10

06:15-17:40

2 stops17h 25m

£648

MilwaukeeLondon

MKE - LHR

MKELHR

Milwaukee-Mitchell

Tue 6/10

20:16-12:15

1 stop9h 59m

London Heathrow

Mon 12/10

10:50-17:40

2 stops36h 50m

£657

MinneapolisLondon

MSP - LHR

MSPLHR

Minneapolis St Paul

Wed 5/8

11:32-07:55

2 stops14h 23m

London Heathrow

Fri 14/8

06:00-16:13

2 stops16h 13m

£787

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 £426. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Wisconsin averaging around £435.

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

You could potentially save up to 16% 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.
Search flight deals

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
Milton Keynes
Luton
Gatwick
Stratford-upon-Avon
Wembley
Slough
Maidstone
Northampton
Swindon
Ipswich
Southend-on-Sea
Canterbury
Ilford
Hayes
Guildford
Poole
Folkestone
Chelmsford
Dover

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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