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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 12/7. 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
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.
Iberia Logo
19:07 - 10:50
SDF
-
LHR
10h 43m
1 stop
Iberia Logo
06:15 - 22:58
LHR
-
SDF
21h 43m
2 stops
£642Iberia
Wed, 9 Sep - Tue, 22 Sep
Iberia Logo
19:07 - 10:50
SDF
-
LHR
10h 43m
1 stop
Iberia Logo
07:50 - 22:58
LHR
-
SDF
20h 08m
2 stops
£642Iberia
Wed, 9 Sep - Tue, 22 Sep
Scandinavian Airlines Logo
15:24 - 17:40
SDF
-
LHR
21h 16m
2 stops
Scandinavian Airlines Logo
06:40 - 22:36
LHR
-
SDF
20h 56m
2 stops
£649Scandinavian Airlines
Mon, 7 Sep - Mon, 21 Sep
British Airways Logo
18:11 - 11:15
SDF
-
LHR
12h 04m
1 stop
British Airways Logo
06:15 - 19:13
LHR
-
SDF
17h 58m
2 stops
£659British Airways
Sun, 23 Aug - Fri, 4 Dec
British Airways Logo
06:49 - 09:00
SDF
-
LHR
21h 11m
1 stop
British Airways Logo
19:30 - 17:09
LHR
-
SDF
26h 39m
2 stops
£662British Airways
Wed, 2 Sep - Wed, 16 Sep
British Airways Logo
17:08 - 08:00
SDF
-
LHR
9h 52m
1 stop
British Airways Logo
14:45 - 23:01
LHR
-
SDF
13h 16m
1 stop
£663British Airways
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
17:08 - 08:00
SDF
-
LHR
9h 52m
1 stop
Multiple Airlines Logo
07:50 - 23:01
LHR
-
SDF
20h 11m
2 stops
£664Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug
American Airlines Logo
14:43 - 06:50
SDF
-
LHR
11h 07m
1 stop
American Airlines Logo
14:45 - 23:01
LHR
-
SDF
13h 16m
1 stop
£667American Airlines
Mon, 17 Aug - Tue, 25 Aug
British Airways Logo
18:11 - 12:15
SDF
-
LHR
13h 04m
1 stop
British Airways Logo
20:00 - 19:42
LHR
-
SDF
28h 42m
2 stops
£668British Airways
Mon, 7 Sep - Mon, 21 Sep
Multiple Airlines Logo
19:48 - 06:20
SDF
-
LGW
29h 32m
2 stops
Multiple Airlines Logo
14:00 - 15:36
LGW
-
SDF
30h 36m
1 stop
£714Multiple Airlines
Mon, 18 May - Wed, 3 Jun

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Iberia flights from Louisville to London

Our best Iberia deals on Louisville to London flight tickets
Iberia
9 Sept
SDF19:07Louisville Intl
10h 43m
1 stop
LHR10:50London Heathrow
22 Sept
LHR06:15London Heathrow
21h 43m
2 stops
SDF22:58Louisville Intl
£642
Iberia
9 Sept
SDF19:07Louisville Intl
10h 43m
1 stop
LHR10:50London Heathrow
22 Sept
LHR07:50London Heathrow
20h 08m
2 stops
SDF22:58Louisville Intl
£642
Iberia
23 Sept
SDF10:31Louisville Intl
16h 09m
1 stop
LHR07:40London Heathrow
1 Oct
LHR07:50London Heathrow
20h 08m
2 stops
SDF22:58Louisville Intl
£687

Delta flights from Louisville to London

Our best Delta deals on Louisville to London flight tickets
Delta
9 Sept
SDF12:53Louisville Intl
16h 27m
2 stops
LHR10:20London Heathrow
22 Sept
LHR09:55London Heathrow
15h 57m
2 stops
SDF20:52Louisville Intl
£674
Delta
22 Sept
SDF13:00Louisville Intl
15h 25m
2 stops
LGW09:25London Gatwick
1 Oct
LGW10:25London Gatwick
16h 12m
2 stops
SDF21:37Louisville Intl
£679
Delta
9 Sept
SDF10:43Louisville Intl
14h 37m
2 stops
LHR06:20London Heathrow
22 Sept
LHR12:50London Heathrow
16h 09m
2 stops
SDF23:59Louisville Intl
£696

momondo Fare Finder

 
Customise your flight search to find flights from Louisville to London 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 April 2026.
Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

19:07-10:50

1 stop10h 43m

London Heathrow

Tue 22/9

06:15-22:58

2 stops21h 43m

£642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

19:07-10:50

1 stop10h 43m

London Heathrow

Tue 22/9

07:50-22:58

2 stops20h 08m

£642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 7/9

15:24-17:40

2 stops21h 16m

London Heathrow

Mon 21/9

06:40-22:36

2 stops20h 56m

£649

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 23/8

18:11-11:15

1 stop12h 04m

London Heathrow

Fri 4/12

06:15-19:13

2 stops17h 58m

£659

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/9

06:49-09:00

1 stop21h 11m

London Heathrow

Wed 16/9

19:30-17:09

2 stops26h 39m

£662
Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/8

17:08-08:00

1 stop9h 52m

London Heathrow

Wed 2/9

14:45-23:01

1 stop13h 16m

£663

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

17:08-08:00

1 stop9h 52m

London Heathrow

Tue 25/8

07:50-23:01

2 stops20h 11m

£664

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

14:43-06:50

1 stop11h 07m

London Heathrow

Tue 25/8

14:45-23:01

1 stop13h 16m

£667

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 7/9

18:11-12:15

1 stop13h 04m

London Heathrow

Mon 21/9

20:00-19:42

2 stops28h 42m

£668

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 18/5

19:48-06:20

2 stops29h 32m

London Gatwick

Wed 3/6

14:00-15:36

1 stop30h 36m

£714

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

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?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in October. Flight prices, which tend to average around £517, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Louisville averaging around £554.

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

You are more likely to see cheaper flights to London from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £671 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Louisville for as low as £568 on momondo.

How have Louisville to London flight prices changed over time?

When to book flights from Louisville to London

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

Cheap Louisville to London (SDF to LON) flight deals and tips

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

Fastest flight time

9h 52m

Direct flights

None
The fastest flight from Louisville to London takes 9h 52m
There are no direct flights from Louisville to London. There are no popular flight routes from Louisville to London.
Search flight deals

Frequently asked questions about flying from Louisville to London

  • How far is Louisville Intl to London by plane?

    There are 4042.6 mi between Louisville Intl and London. By plane, this route typically takes 9h 52m.

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

    Prices for flights from Louisville Intl Airport to London are updated daily.

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

    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.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London 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. 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
Wembley
Southend-on-Sea
Ipswich
Canterbury
Ilford
Guildford
Hayes
Dover
Chelmsford
Folkestone
Chichester
Bedford
Ramsgate
Harlow

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?

momondo does allow users to show only those flights to London from Louisville which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Louisville to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport