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Cheap flights from Louisville to London from £248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 1/9. 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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Find the cheapest flights from Louisville to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
18:00 - 12:00
SDF
-
LHR
13h 00m
1 stop
United Airlines Logo
06:50 - 16:49
LHR
-
SDF
14h 59m
2 stops
£628United Airlines
Tue, 10 Nov - Thu, 12 Nov
United Airlines Logo
19:32 - 12:00
SDF
-
LHR
11h 28m
1 stop
United Airlines Logo
06:50 - 16:49
LHR
-
SDF
14h 59m
2 stops
£629United Airlines
Tue, 10 Nov - Thu, 12 Nov
United Airlines Logo
11:00 - 07:10
SDF
-
LHR
15h 10m
2 stops
United Airlines Logo
06:50 - 16:49
LHR
-
SDF
14h 59m
2 stops
£631United Airlines
Tue, 10 Nov - Thu, 12 Nov
Iberia Logo
17:20 - 10:25
SDF
-
LHR
12h 05m
1 stop
Iberia Logo
11:25 - 22:59
LHR
-
SDF
16h 34m
2 stops
£651Iberia
Mon, 2 Nov - Fri, 20 Nov
Iberia Logo
10:31 - 07:40
SDF
-
LHR
16h 09m
1 stop
Iberia Logo
06:15 - 22:58
LHR
-
SDF
21h 43m
2 stops
£652Iberia
Wed, 9 Sep - Tue, 22 Sep
Iberia Logo
19:15 - 12:15
SDF
-
LHR
12h 00m
1 stop
Iberia Logo
19:25 - 21:26
LHR
-
SDF
31h 01m
2 stops
£654Iberia
Sun, 23 Aug - Mon, 7 Sep
Scandinavian Airlines Logo
13:00 - 18:30
SDF
-
LHR
24h 30m
2 stops
Scandinavian Airlines Logo
06:40 - 22:35
LHR
-
SDF
20h 55m
2 stops
£657Scandinavian Airlines
Tue, 10 Nov - Fri, 20 Nov
Scandinavian Airlines Logo
15:24 - 21:40
SDF
-
LHR
25h 16m
2 stops
Scandinavian Airlines Logo
06:40 - 00:02
LHR
-
SDF
22h 22m
2 stops
£660Scandinavian Airlines
Wed, 4 Nov - Wed, 11 Nov
Scandinavian Airlines Logo
15:24 - 18:30
SDF
-
LHR
22h 06m
2 stops
Scandinavian Airlines Logo
07:05 - 22:35
LHR
-
SDF
20h 30m
3 stops
£664Scandinavian Airlines
Mon, 2 Nov - Mon, 9 Nov
Scandinavian Airlines Logo
13:00 - 16:25
SDF
-
LHR
22h 25m
3 stops
Scandinavian Airlines Logo
06:40 - 22:35
LHR
-
SDF
20h 55m
2 stops
£665Scandinavian Airlines
Tue, 10 Nov - Fri, 20 Nov

Air Canada flights from Louisville to London Heathrow Airport

Our best Air Canada deals on Louisville to London Heathrow Airport flight tickets
Air Canada
14 Sept
SDF06:15Louisville Intl
22h 45m
2 stops
LHR10:00London Heathrow
23 Sept
LHR12:40London Heathrow
39h 35m
2 stops
SDF23:15Louisville Intl
£732
Air Canada
19 May
SDF08:47Louisville Intl
16h 43m
2 stops
LHR06:30London Heathrow
28 May
LHR14:05London Heathrow
27h 16m
2 stops
SDF12:21Louisville Intl
£810
Air Canada
19 May
SDF08:47Louisville Intl
16h 43m
2 stops
LHR06:30London Heathrow
28 May
LHR14:05London Heathrow
27h 16m
2 stops
SDF12:21Louisville Intl
£811

British Airways flights from Louisville to London Heathrow Airport

Our best British Airways deals on Louisville to London Heathrow Airport flight tickets
British Airways
9 Sept
SDF15:54Louisville Intl
12h 31m
1 stop
LHR09:25London Heathrow
22 Sept
LHR07:50London Heathrow
20h 08m
2 stops
SDF22:58Louisville Intl
£666
British Airways
9 Sept
SDF20:04Louisville Intl
11h 06m
1 stop
LHR12:10London Heathrow
22 Sept
LHR07:50London Heathrow
20h 08m
2 stops
SDF22:58Louisville Intl
£666
British Airways
17 Aug
SDF19:12Louisville Intl
12h 38m
1 stop
LHR12:50London Heathrow
25 Aug
LHR15:00London Heathrow
13h 17m
1 stop
SDF23:17Louisville Intl
£672

momondo Fare Finder

 
Customise your flight search to find flights from Louisville 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 Louisville to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/11

18:00-12:00

1 stop13h 00m

London Heathrow

Thu 12/11

06:50-16:49

2 stops14h 59m

£628
Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/11

19:32-12:00

1 stop11h 28m

London Heathrow

Thu 12/11

06:50-16:49

2 stops14h 59m

£629

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/11

11:00-07:10

2 stops15h 10m

London Heathrow

Thu 12/11

06:50-16:49

2 stops14h 59m

£631

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 2/11

17:20-10:25

1 stop12h 05m

London Heathrow

Fri 20/11

11:25-22:59

2 stops16h 34m

£651

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

10:31-07:40

1 stop16h 09m

London Heathrow

Tue 22/9

06:15-22:58

2 stops21h 43m

£652

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 23/8

19:15-12:15

1 stop12h 00m

London Heathrow

Mon 7/9

19:25-21:26

2 stops31h 01m

£654

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/11

13:00-18:30

2 stops24h 30m

London Heathrow

Fri 20/11

06:40-22:35

2 stops20h 55m

£657

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/11

15:24-21:40

2 stops25h 16m

London Heathrow

Wed 11/11

06:40-00:02

2 stops22h 22m

£660

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 2/11

15:24-18:30

2 stops22h 06m

London Heathrow

Mon 9/11

07:05-22:35

3 stops20h 30m

£664

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/11

13:00-16:25

3 stops22h 25m

London Heathrow

Fri 20/11

06:40-22:35

2 stops20h 55m

£665

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 Louisville 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 typical price of a round-trip flight between Louisville and London Heathrow Airport?

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

In general, February is the cheapest month to fly from Louisville to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £465. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Louisville averaging around £484.

How far in advance should I book a flight from Louisville to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £688 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 Louisville for as low as £562 on momondo.

When to book flights from Louisville to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Louisville to London Heathrow Airport (SDF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to London Heathrow Airport

Fastest flight time

10h 46m

Direct flights

None
The fastest flight from Louisville to London Heathrow Airport takes 10h 46m
There are no direct flights from Louisville to London Heathrow Airport. There are no popular flight routes from Louisville to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Louisville to London Heathrow Airport

  • How far is Louisville Intl to London Heathrow by plane?

    Louisville Intl and London Heathrow are 4030.3 mi apart from one another. In terms of flight time, this usually takes a little over 10h 46m.

  • When did momondo last update prices for flights from Louisville Intl Airport to London Heathrow Airport?

    Prices for flights from Louisville Intl Airport to London Heathrow Airport refresh daily.

  • How old do you have to be to fly from Louisville Intl Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport 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.

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 Louisville to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Louisville.

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

Yes. All flights to London from Louisville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Louisville to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Louisville to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

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