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Cheap flights from Louisville to London from £229

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 21/7. 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 Louisville to London

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
16:00 - 09:35
SDF
-
LHR
12h 35m
1 stop
British Airways Logo
09:15 - 17:22
LHR
-
SDF
13h 07m
1 stop
£593British Airways
Mon, 17 Aug - Tue, 25 Aug
Multiple Airlines Logo
18:11 - 11:15
SDF
-
LHR
12h 04m
1 stop
Multiple Airlines Logo
06:15 - 23:01
LHR
-
SDF
21h 46m
2 stops
£594Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug
British Airways Logo
16:00 - 08:00
SDF
-
LHR
11h 00m
1 stop
British Airways Logo
15:00 - 22:47
LHR
-
SDF
12h 47m
1 stop
£630British Airways
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
16:00 - 08:00
SDF
-
LHR
11h 00m
1 stop
Multiple Airlines Logo
07:50 - 19:36
LHR
-
SDF
16h 46m
2 stops
£631Multiple Airlines
Wed, 26 Aug - Wed, 2 Sep
British Airways Logo
20:06 - 12:50
SDF
-
LHR
11h 44m
1 stop
British Airways Logo
10:05 - 18:45
LHR
-
SDF
13h 40m
1 stop
£632British Airways
Mon, 17 Aug - Tue, 25 Aug
Multiple Airlines Logo
20:06 - 12:50
SDF
-
LHR
11h 44m
1 stop
Multiple Airlines Logo
06:15 - 23:01
LHR
-
SDF
21h 46m
2 stops
£633Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug
Multiple Airlines Logo
16:00 - 09:35
SDF
-
LHR
12h 35m
1 stop
Multiple Airlines Logo
14:45 - 23:01
LHR
-
SDF
13h 16m
1 stop
£635Multiple Airlines
Mon, 17 Aug - Wed, 26 Aug
Multiple Airlines Logo
18:11 - 11:15
SDF
-
LHR
12h 04m
1 stop
Multiple Airlines Logo
14:25 - 23:06
LHR
-
SDF
13h 41m
1 stop
£636Multiple Airlines
Sun, 16 Aug - Tue, 25 Aug
Lufthansa Logo
10:05 - 07:40
SDF
-
LHR
16h 35m
2 stops
Lufthansa Logo
09:30 - 19:19
LHR
-
SDF
14h 49m
2 stops
£639Lufthansa
Mon, 17 Aug - Tue, 25 Aug
Lufthansa Logo
19:43 - 17:40
SDF
-
LHR
16h 57m
2 stops
Lufthansa Logo
07:30 - 19:19
LHR
-
SDF
16h 49m
2 stops
£641Lufthansa
Wed, 26 Aug - Wed, 2 Sep

British Airways flights from Louisville to London Heathrow Airport

Our best British Airways deals on Louisville to London Heathrow Airport flight tickets
British Airways
26 Aug
SDF16:00Louisville Intl
11h 00m
1 stop
LHR08:00London Heathrow
2 Sept
LHR15:00London Heathrow
12h 47m
1 stop
SDF22:47Louisville Intl
£630
British Airways
17 Aug
SDF20:06Louisville Intl
11h 44m
1 stop
LHR12:50London Heathrow
25 Aug
LHR10:05London Heathrow
13h 40m
1 stop
SDF18:45Louisville Intl
£632
British Airways
1 Sept
SDF16:00Louisville Intl
11h 00m
1 stop
LHR08:00London Heathrow
17 Sept
LHR06:15London Heathrow
21h 43m
2 stops
SDF22:58Louisville Intl
£650

Lufthansa flights from Louisville to London Heathrow Airport

Our best Lufthansa deals on Louisville to London Heathrow Airport flight tickets
Lufthansa
26 Aug
SDF19:43Louisville Intl
15h 57m
2 stops
LHR16:40London Heathrow
2 Sept
LHR07:30London Heathrow
16h 49m
2 stops
SDF19:19Louisville Intl
£639
Lufthansa
17 Aug
SDF19:43Louisville Intl
16h 57m
2 stops
LHR17:40London Heathrow
25 Aug
LHR13:30London Heathrow
15h 35m
2 stops
SDF00:05Louisville Intl
£641
Lufthansa
20 Apr
SDF17:48Louisville Intl
20h 52m
2 stops
LHR19:40London Heathrow
30 Apr
LHR19:30London Heathrow
33h 26m
2 stops
SDF23:56Louisville Intl
£647

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 22 March 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

Mon 17/8

16:00-09:35

1 stop12h 35m

London Heathrow

Tue 25/8

09:15-17:22

1 stop13h 07m

£593

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

18:11-11:15

1 stop12h 04m

London Heathrow

Tue 25/8

06:15-23:01

2 stops21h 46m

£594
Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/8

16:00-08:00

1 stop11h 00m

London Heathrow

Wed 2/9

15:00-22:47

1 stop12h 47m

£630

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/8

16:00-08:00

1 stop11h 00m

London Heathrow

Wed 2/9

07:50-19:36

2 stops16h 46m

£631

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

20:06-12:50

1 stop11h 44m

London Heathrow

Tue 25/8

10:05-18:45

1 stop13h 40m

£632

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

20:06-12:50

1 stop11h 44m

London Heathrow

Tue 25/8

06:15-23:01

2 stops21h 46m

£633

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

16:00-09:35

1 stop12h 35m

London Heathrow

Wed 26/8

14:45-23:01

1 stop13h 16m

£635

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 16/8

18:11-11:15

1 stop12h 04m

London Heathrow

Tue 25/8

14:25-23:06

1 stop13h 41m

£636

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

10:05-07:40

2 stops16h 35m

London Heathrow

Tue 25/8

09:30-19:19

2 stops14h 49m

£639

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/8

19:43-17:40

2 stops16h 57m

London Heathrow

Wed 2/9

07:30-19:19

2 stops16h 49m

£641

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 £464. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Louisville averaging around £483.

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 Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £659 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 £516 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

9h 50m

Direct flights

None
The fastest flight from Louisville to London Heathrow Airport takes 9h 50m
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

  • 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 9h 50m.

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

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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