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Cheap flights from Louisville to London from $221

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 3/25. 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 round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:05 pm - 11:15 am
SDF
-
LHR
16h 10m1 stop
Lufthansa Logo
7:40 am - 7:43 pm
LHR
-
SDF
17h 03m2 stops
$596Lufthansa
lun., ene. 12 - lun., feb. 2
Lufthansa Logo
2:05 pm - 5:55 am
SDF
-
LHR
10h 50m1 stop
Lufthansa Logo
12:05 pm - 7:43 pm
LHR
-
SDF
12h 38m1 stop
$602Lufthansa
dom., ene. 11 - dom., feb. 1
Lufthansa Logo
2:10 pm - 10:25 am
SDF
-
LHR
15h 15m2 stops
Lufthansa Logo
6:35 am - 7:43 pm
LHR
-
SDF
18h 08m2 stops
$604Lufthansa
lun., ene. 12 - lun., feb. 2
Lufthansa Logo
2:05 pm - 5:55 am
SDF
-
LHR
10h 50m1 stop
Lufthansa Logo
8:30 am - 10:30 pm
LHR
-
SDF
19h 00m2 stops
$606Lufthansa
sáb., ene. 10 - dom., ene. 18
Virgin Atlantic Logo
6:23 am - 7:05 am
SDF
-
LHR
19h 42m1 stop
Virgin Atlantic Logo
11:45 am - 9:15 pm
LHR
-
SDF
14h 30m2 stops
$612Virgin Atlantic
mié., ene. 7 - mié., ene. 14
Multiple Airlines Logo
6:28 am - 8:35 pm
SDF
-
LHR
33h 07m2 stops
Multiple Airlines Logo
11:10 am - 10:30 pm
LHR
-
SDF
16h 20m2 stops
$619Multiple Airlines
mié., ene. 7 - mié., ene. 14
Multiple Airlines Logo
9:50 am - 6:30 am
SDF
-
LHR
15h 40m2 stops
Multiple Airlines Logo
8:45 am - 10:30 pm
LHR
-
SDF
18h 45m2 stops
$625Multiple Airlines
sáb., ene. 24 - sáb., ene. 31
United Airlines Logo
1:50 pm - 8:25 am
SDF
-
LHR
13h 35m1 stop
United Airlines Logo
6:50 am - 10:13 pm
LHR
-
SDF
20h 23m2 stops
$627United Airlines
mié., feb. 11 - dom., feb. 15
British Airways Logo
3:44 pm - 8:45 pm
SDF
-
LCY
24h 01m2 stops
British Airways Logo
2:45 pm - 10:12 pm
LCY
-
SDF
36h 27m2 stops
$1,137British Airways
mié., dic. 31 - jue., ene. 8
British Airways Logo
6:45 am - 8:35 am
SDF
-
LCY
44h 50m2 stops
British Airways Logo
7:00 pm - 5:34 pm
LCY
-
SDF
27h 34m2 stops
$1,160British Airways
jue., jun. 4 - lun., jun. 8

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets
United Airlines
Jan 21
SDF2:10 pmLouisville Intl
14h 10m
2 stops
LHR9:20 amLondon Heathrow
Jan 30
LHR6:50 amLondon Heathrow
15h 47m
2 stops
SDF5:37 pmLouisville Intl
$627
Find similar
United Airlines
Jan 23
SDF1:50 pmLouisville Intl
13h 35m
1 stop
LHR8:25 amLondon Heathrow
Jan 27
LHR6:50 amLondon Heathrow
15h 47m
2 stops
SDF5:37 pmLouisville Intl
$628
Find similar
United Airlines
Feb 11
SDF9:15 amLouisville Intl
16h 05m
2 stops
LHR6:20 amLondon Heathrow
Feb 15
LHR6:50 amLondon Heathrow
17h 52m
2 stops
SDF7:42 pmLouisville Intl
$632
Find similar

Lufthansa flights from Louisville to London

Our best Lufthansa deals on Louisville to London flight tickets
Lufthansa
Jan 11
SDF2:05 pmLouisville Intl
10h 50m
1 stop
LHR5:55 amLondon Heathrow
Feb 1
LHR11:10 amLondon Heathrow
16h 20m
2 stops
SDF10:30 pmLouisville Intl
$596
Find similar
Lufthansa
Jan 11
SDF2:05 pmLouisville Intl
12h 50m
1 stop
LHR7:55 amLondon Heathrow
Feb 1
LHR12:05 pmLondon Heathrow
12h 38m
1 stop
SDF7:43 pmLouisville Intl
$605
Find similar
Lufthansa
Jan 6
SDF2:05 pmLouisville Intl
10h 50m
1 stop
LHR5:55 amLondon Heathrow
Jan 13
LHR7:30 amLondon Heathrow
17h 01m
2 stops
SDF7:31 pmLouisville Intl
$606
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated diciembre 11, 2025.
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

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

lun. 1/12

2:05 pm-11:15 am

1 stop16h 10m

London Heathrow

lun. 2/2

7:40 am-7:43 pm

2 stops17h 03m

$596

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

dom. 1/11

2:05 pm-5:55 am

1 stop10h 50m

London Heathrow

dom. 2/1

12:05 pm-7:43 pm

1 stop12h 38m

$602

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

lun. 1/12

2:10 pm-10:25 am

2 stops15h 15m

London Heathrow

lun. 2/2

6:35 am-7:43 pm

2 stops18h 08m

$604

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

sáb. 1/10

2:05 pm-5:55 am

1 stop10h 50m

London Heathrow

dom. 1/18

8:30 am-10:30 pm

2 stops19h 00m

$606

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mié. 1/7

6:23 am-7:05 am

1 stop19h 42m

London Heathrow

mié. 1/14

11:45 am-9:15 pm

2 stops14h 30m

$612

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mié. 1/7

6:28 am-8:35 pm

2 stops33h 07m

London Heathrow

mié. 1/14

11:10 am-10:30 pm

2 stops16h 20m

$619

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

sáb. 1/24

9:50 am-6:30 am

2 stops15h 40m

London Heathrow

sáb. 1/31

8:45 am-10:30 pm

2 stops18h 45m

$625

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mié. 2/11

1:50 pm-8:25 am

1 stop13h 35m

London Heathrow

dom. 2/15

6:50 am-10:13 pm

2 stops20h 23m

$627

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

mié. 12/31

3:44 pm-8:45 pm

2 stops24h 01m

London City

jue. 1/8

2:45 pm-10:12 pm

2 stops36h 27m

$1,137

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

jue. 6/4

6:45 am-8:35 am

2 stops44h 50m

London City

lun. 6/8

7:00 pm-5:34 pm

2 stops27h 34m

$1,160

Flights are sorted by cheapest round-trip 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

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?

The cheapest month to fly to London from Louisville is in October. Flight prices, which tend to average around $699, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Louisville averaging around $702.

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

The cheapest day to depart from Louisville to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $749. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $949. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Louisville in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $780 when looking at flights departing in the afternoon. Flights to London are more costly at noon, with an average ticket price of $895. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $940 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Louisville for as low as $749 on momondo.

Can stopping save me money on Louisville to London flights?

You could potentially save up to 11% on your flight if you consider stops on a Louisville to London flight.

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 round-trip 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

10h 50m

Direct flights

None
The fastest flight from Louisville to London takes 10h 50m
There are no direct flights from Louisville to London. There are no popular flight routes from Louisville to London.
Search flight deals

  • How far is Louisville Intl to London by plane?

    The straight-line distance from Louisville Intl to London is 4042.6 mi. In terms of flight time, this usually takes a little over 10h 50m.

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

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

  • How many operators does momondo search for flights from Louisville Intl Airport to London?

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

    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 Louisville Intl Airport to London.

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

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to London?

Best airlines flying from Louisville to London

Compare and see reviews for airlines that fly from Louisville to London with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $574Free CancellationRating
7.7
1,432 reviews
Search KLM flights
Virgin AtlanticPriceFrom $580Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $598Free CancellationRating
6.7
7,571 reviews
Search British Airways flights
American AirlinesPriceFrom $665Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
DeltaPriceFrom $675Free CancellationRating
7.9
8,005 reviews
Search Delta flights
United AirlinesPriceFrom $678Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Wembley
Romford
Watford
Ilford
Cobham
Folkestone
Uxbridge
Stansted
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to London for you.

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 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?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Louisville and alert you when they change.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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sáb. 1/10
sáb. 1/17
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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