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Cheap flights from Louisville to London from £298

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 18/11. 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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Cheap return flights

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Virgin Atlantic Logo
12:37 - 07:05SDF-LHR
13h 28m1 stop
Virgin Atlantic Logo
11:05 - 18:45LHR-SDF
12h 40m1 stop
£443Virgin Atlantic
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Tue, 25 Nov - Tue, 2 Dec
Delta Logo
10:37 - 07:50SDF-LHR
16h 13m1 stop
Delta Logo
06:20 - 17:36LHR-SDF
16h 16m2 stops
£448Delta
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Tue, 25 Nov - Tue, 9 Dec
KLM Logo
15:09 - 09:00SDF-LHR
12h 51m1 stop
KLM Logo
11:05 - 18:45LHR-SDF
12h 40m1 stop
£453KLM
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Tue, 25 Nov - Tue, 9 Dec
Scandinavian Airlines Logo
12:55 - 17:40SDF-LHR
23h 45m2 stops
Scandinavian Airlines Logo
06:40 - 23:50LHR-SDF
22h 10m2 stops
£454Scandinavian Airlines
Find Deal
Thu, 29 Jan - Mon, 9 Feb
Multiple Airlines Logo
11:00 - 07:10SDF-LHR
15h 10m2 stops
Multiple Airlines Logo
08:45 - 22:29LHR-SDF
18h 44m2 stops
£461Multiple Airlines
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Wed, 26 Nov - Wed, 3 Dec
United Airlines Logo
11:00 - 09:20SDF-LHR
17h 20m2 stops
United Airlines Logo
06:50 - 17:16LHR-SDF
15h 26m2 stops
£469United Airlines
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Wed, 26 Nov - Wed, 3 Dec
Multiple Airlines Logo
09:00 - 07:10SDF-LHR
17h 10m2 stops
Multiple Airlines Logo
11:10 - 22:29LHR-SDF
16h 19m2 stops
£480Multiple Airlines
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Fri, 5 Dec - Tue, 9 Dec
KLM Logo
19:59 - 11:40SDF-LHR
10h 41m1 stop
KLM Logo
11:45 - 21:13LHR-SDF
14h 28m2 stops
£486KLM
Find Deal
Fri, 5 Dec - Tue, 9 Dec
United Airlines Logo
14:35 - 10:50SDF-LHR
15h 15m1 stop
United Airlines Logo
09:00 - 22:29LHR-SDF
18h 29m2 stops
£488United Airlines
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Fri, 28 Nov - Fri, 5 Dec
Scandinavian Airlines Logo
15:09 - 21:40SDF-LHR
25h 31m2 stops
Scandinavian Airlines Logo
06:40 - 23:00LHR-SDF
21h 20m3 stops
£505Scandinavian Airlines
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Mon, 17 Nov - Thu, 20 Nov

Delta flights from Louisville to London Heathrow Airport

Our best Delta deals on Louisville to London Heathrow Airport flight tickets
Delta
25 Nov
SDF10:37Louisville Intl
16h 13m
1 stop
LHR07:50London Heathrow
9 Dec
LHR06:20London Heathrow
16h 16m
2 stops
SDF17:36Louisville Intl
£448
Find similar
Delta
8 Jan
SDF12:36Louisville Intl
18h 04m
1 stop
LHR11:40London Heathrow
17 Jan
LHR11:30London Heathrow
17h 25m
2 stops
SDF23:55Louisville Intl
£516
Find similar
Delta
8 Apr
SDF16:30Louisville Intl
13h 30m
1 stop
LHR11:00London Heathrow
13 Apr
LHR11:45London Heathrow
17h 12m
2 stops
SDF23:57Louisville Intl
£574
Find similar

KLM flights from Louisville to London Heathrow Airport

Our best KLM deals on Louisville to London Heathrow Airport flight tickets
KLM
25 Nov
SDF15:09Louisville Intl
12h 51m
1 stop
LHR09:00London Heathrow
9 Dec
LHR11:05London Heathrow
12h 40m
1 stop
SDF18:45Louisville Intl
£453
Find similar
KLM
5 Dec
SDF19:59Louisville Intl
10h 41m
1 stop
LHR11:40London Heathrow
9 Dec
LHR11:45London Heathrow
14h 28m
2 stops
SDF21:13Louisville Intl
£486
Find similar
KLM
9 Jan
SDF15:37Louisville Intl
12h 23m
1 stop
LHR09:00London Heathrow
16 Jan
LHR11:45London Heathrow
14h 30m
2 stops
SDF21:15Louisville Intl
£492
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 30 October 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

Tue 25/11

12:37-07:05

1 stop13h 28m

London Heathrow

Tue 2/12

11:05-18:45

1 stop12h 40m

£443

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 25/11

10:37-07:50

1 stop16h 13m

London Heathrow

Tue 9/12

06:20-17:36

2 stops16h 16m

£448

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 25/11

15:09-09:00

1 stop12h 51m

London Heathrow

Tue 9/12

11:05-18:45

1 stop12h 40m

£453

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 29/1

12:55-17:40

2 stops23h 45m

London Heathrow

Mon 9/2

06:40-23:50

2 stops22h 10m

£454

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/11

11:00-07:10

2 stops15h 10m

London Heathrow

Wed 3/12

08:45-22:29

2 stops18h 44m

£461

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/11

11:00-09:20

2 stops17h 20m

London Heathrow

Wed 3/12

06:50-17:16

2 stops15h 26m

£469

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 5/12

09:00-07:10

2 stops17h 10m

London Heathrow

Tue 9/12

11:10-22:29

2 stops16h 19m

£480

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 5/12

19:59-11:40

1 stop10h 41m

London Heathrow

Tue 9/12

11:45-21:13

2 stops14h 28m

£486

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 28/11

14:35-10:50

1 stop15h 15m

London Heathrow

Fri 5/12

09:00-22:29

2 stops18h 29m

£488

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/11

15:09-21:40

2 stops25h 31m

London Heathrow

Thu 20/11

06:40-23:00

3 stops21h 20m

£505

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 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 £476. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Louisville averaging around £535.

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 £597. 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 £843.

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 £621. 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 £887 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 £747 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 £632 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

Direct flights

None
There are no direct flights from Louisville to London Heathrow Airport. There are no popular flight routes from Louisville to London Heathrow Airport.
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  • 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 41m.

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

  • 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.

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

Best airlines flying from Louisville to London Heathrow Airport

Compare and see reviews for airlines that fly from Louisville to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £546Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom £564Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights

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
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Colchester
Dover
Hayes
Chelmsford

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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