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Cheap flights from Louisville to London from £165

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 25/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Lufthansa Logo
14:05 - 11:15
SDF
-
LHR
16h 10m1 stop
Lufthansa Logo
07:40 - 19:43
LHR
-
SDF
17h 03m2 stops
£445Lufthansa
Mon, 12 Jan - Mon, 2 Feb
Lufthansa Logo
14:05 - 05:55
SDF
-
LHR
10h 50m1 stop
Lufthansa Logo
12:05 - 19:43
LHR
-
SDF
12h 38m1 stop
£450Lufthansa
Sun, 11 Jan - Sun, 1 Feb
Lufthansa Logo
14:10 - 10:25
SDF
-
LHR
15h 15m2 stops
Lufthansa Logo
06:35 - 19:43
LHR
-
SDF
18h 08m2 stops
£451Lufthansa
Mon, 12 Jan - Mon, 2 Feb
Lufthansa Logo
14:05 - 05:55
SDF
-
LHR
10h 50m1 stop
Lufthansa Logo
08:30 - 22:30
LHR
-
SDF
19h 00m2 stops
£453Lufthansa
Sat, 10 Jan - Sun, 18 Jan
Virgin Atlantic Logo
06:23 - 07:05
SDF
-
LHR
19h 42m1 stop
Virgin Atlantic Logo
11:45 - 21:15
LHR
-
SDF
14h 30m2 stops
£457Virgin Atlantic
Wed, 7 Jan - Wed, 14 Jan
Lufthansa Logo
14:05 - 09:45
SDF
-
LHR
14h 40m2 stops
Lufthansa Logo
11:10 - 23:23
LHR
-
SDF
17h 13m2 stops
£459Lufthansa
Sun, 11 Jan - Sun, 1 Feb
Multiple Airlines Logo
06:28 - 20:35
SDF
-
LHR
33h 07m2 stops
Multiple Airlines Logo
11:10 - 22:30
LHR
-
SDF
16h 20m2 stops
£462Multiple Airlines
Wed, 7 Jan - Wed, 14 Jan
Lufthansa Logo
14:05 - 12:50
SDF
-
LHR
17h 45m2 stops
Lufthansa Logo
06:30 - 19:42
LHR
-
SDF
18h 12m2 stops
£466Lufthansa
Wed, 11 Feb - Sun, 15 Feb
Multiple Airlines Logo
09:50 - 06:30
SDF
-
LHR
15h 40m2 stops
Multiple Airlines Logo
08:45 - 22:30
LHR
-
SDF
18h 45m2 stops
£467Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
13:50 - 08:25
SDF
-
LHR
13h 35m1 stop
United Airlines Logo
06:50 - 22:13
LHR
-
SDF
20h 23m2 stops
£468United Airlines
Wed, 11 Feb - Sun, 15 Feb

Lufthansa flights from Louisville to London Heathrow Airport

Our best Lufthansa deals on Louisville to London Heathrow Airport flight tickets
Lufthansa
12 Jan
SDF14:05Louisville Intl
16h 10m
1 stop
LHR11:15London Heathrow
2 Feb
LHR07:40London Heathrow
17h 03m
2 stops
SDF19:43Louisville Intl
£445
Find similar
Lufthansa
11 Jan
SDF14:05Louisville Intl
10h 50m
1 stop
LHR05:55London Heathrow
1 Feb
LHR12:05London Heathrow
12h 38m
1 stop
SDF19:43Louisville Intl
£450
Find similar
Lufthansa
12 Jan
SDF14:10Louisville Intl
15h 15m
2 stops
LHR10:25London Heathrow
2 Feb
LHR06:35London Heathrow
18h 08m
2 stops
SDF19:43Louisville Intl
£451
Find similar

Delta flights from Louisville to London Heathrow Airport

Our best Delta deals on Louisville to London Heathrow Airport flight tickets
Delta
13 Jan
SDF17:45Louisville Intl
12h 55m
1 stop
LHR11:40London Heathrow
3 Feb
LHR10:00London Heathrow
16h 19m
2 stops
SDF21:19Louisville Intl
£470
Find similar
Delta
9 Jan
SDF15:00Louisville Intl
10h 50m
1 stop
LHR06:50London Heathrow
4 Feb
LHR08:55London Heathrow
15h 44m
1 stop
SDF19:39Louisville Intl
£490
Find similar
Delta
8 Apr
SDF16:26Louisville Intl
15h 44m
1 stop
LHR13:10London Heathrow
28 Apr
LHR11:45London Heathrow
17h 14m
2 stops
SDF23:59Louisville Intl
£529
Find similar

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 12 December 2025.
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

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 12/1

14:05-11:15

1 stop16h 10m

London Heathrow

Mon 2/2

07:40-19:43

2 stops17h 03m

£445

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 11/1

14:05-05:55

1 stop10h 50m

London Heathrow

Sun 1/2

12:05-19:43

1 stop12h 38m

£450

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 12/1

14:10-10:25

2 stops15h 15m

London Heathrow

Mon 2/2

06:35-19:43

2 stops18h 08m

£451

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 10/1

14:05-05:55

1 stop10h 50m

London Heathrow

Sun 18/1

08:30-22:30

2 stops19h 00m

£453

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 7/1

06:23-07:05

1 stop19h 42m

London Heathrow

Wed 14/1

11:45-21:15

2 stops14h 30m

£457

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 11/1

14:05-09:45

2 stops14h 40m

London Heathrow

Sun 1/2

11:10-23:23

2 stops17h 13m

£459

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 7/1

06:28-20:35

2 stops33h 07m

London Heathrow

Wed 14/1

11:10-22:30

2 stops16h 20m

£462

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 11/2

14:05-12:50

2 stops17h 45m

London Heathrow

Sun 15/2

06:30-19:42

2 stops18h 12m

£466

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 24/1

09:50-06:30

2 stops15h 40m

London Heathrow

Sat 31/1

08:45-22:30

2 stops18h 45m

£467

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 11/2

13:50-08:25

1 stop13h 35m

London Heathrow

Sun 15/2

06:50-22:13

2 stops20h 23m

£468

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 £470. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Louisville averaging around £518.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Louisville is on a Sunday. momondo users have found tickets for Sunday departures for as low as £589. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Wednesday is £832.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Louisville to London Heathrow Airport at midday for as low as £613. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £876 on average. Flights to London Heathrow Airport from Louisville in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £702 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 £559 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 59m

Direct flights

None
The fastest flight from Louisville to London Heathrow Airport takes 10h 59m
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 10h 59m.

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

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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