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Cheap flights from Louisville to London Heathrow Airport from £243

SDF — LHR
30 Oct — 6 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to Heathrow

Mon 2/1110:13 -
1 stop17h 22m
Tue 17/1107:30 -
2 stops19h 06m
Deal found 30/9£648
Wed 11/1113:14 -
1 stop16h 11m
Wed 18/1106:15 -
2 stops20h 21m
Deal found 29/9£649
Wed 4/1113:14 -
1 stop14h 21m
Wed 11/1106:15 -
2 stops20h 21m
Deal found 30/9£650
Wed 11/1113:30 -
1 stop12h 20m
Wed 18/1108:55 -
1 stop12h 59m
Deal found 27/9£657
Mon 9/1113:30 -
1 stop12h 20m
Mon 16/1120:25 -
2 stops25h 29m
Deal found 27/9£661
Sat 7/1117:57 -
2 stops31h 33m
Wed 18/1111:10 -
2 stops16h 20m
Deal found 25/9£664
Mon 2/1118:31 -
1 stop10h 54m
Tue 17/1112:15 -
1 stop14h 12m
Deal found 30/9£666
Wed 28/1011:15 -
1 stop15h 05m
Fri 13/1106:50 -
2 stops15h 47m
Deal found 29/9£667
Tue 27/1014:10 -
2 stops13h 00m
Tue 3/1109:00 -
2 stops16h 52m
Deal found 27/9£668

Find flight deals from Louisville to Heathrow

Round-trip from

£577

One-way from

£243

Popular in

July

Cheapest in

February

Average price

£800
United Airlines
  • United Airlines
  • 2/3-5/3
  • 3 total stops
  • 49h 54m total
  • Louisville to London
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British Airways
  • British Airways
  • 12/1-31/12
  • 1 total stop
  • 15h 13m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£105 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Louisville to London Heathrow Airport that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 13/1

10:12-08:35

1 stop17h 23m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 13/1

10:43-07:15

2 stops15h 32m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251
Fastest return journey

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 22/2

13:55-08:25

2 stops13h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 12/1

08:55-07:10

3 stops17h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£260

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sat 10/10

17:19-11:10

2 stops36h 51m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£339

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 11/11

12:57-09:15

2 stops15h 18m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£348

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 11/11

09:02-07:10

3 stops17h 08m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£356

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sat 10/10

20:19-06:55

1 stop29h 36m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£364

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 28/10

14:10-07:55

1 stop13h 45m

London Heathrow

Fri 13/11

06:50-20:34

2 stops18h 44m

£667

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 10/3

10:26-06:55

1 stop15h 29m

London Heathrow

Wed 14/4

12:55-23:11

1 stop15h 16m

£691

Flights are sorted by cheapest return flights first.

Deals found on 28/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Louisville to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Louisville with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Louisville to London Heathrow Airport

What is the cheapest month to book a flight from Louisville to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £476). Flying from Louisville to London Heathrow Airport in July is currently the most expensive (average of £1,019). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Louisville to London Heathrow Airport?

Airfare is below average for this route at the moment.

Louisville to London Heathrow Airport flights typically cost between £667 and £842 in March.
The cheapest return price found within the last 5 days was £577 on United Airlines (2 Mar–5 Mar).

Related info for your journey

  • What airport do you fly from for flights from Louisville to London Heathrow?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to London Heathrow. 0 airlines have flights from Louisville Intl to London Heathrow on a regular basis. Booking flights from Louisville Intl to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Louisville to London Heathrow Airport?

    There are many flights that can get you from Louisville to London Heathrow Airport in 13h 45m. Fly via United Airlines or British Airways to get the fastest option. The distance between Louisville and London Heathrow Airport is about 4033 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Louisville to Heathrow that include hotel bookings?

    Yes. In addition to deals on Louisville to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Heathrow.

  • Can I find deals for business class flights from Louisville to Heathrow?

    Yes. Cheapflights offers flight deals from Louisville to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £476). Flying from Louisville to London Heathrow Airport in July is currently the most expensive (average of £1,019). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Northampton
Colchester
Eastbourne
Enfield
Brentford
Southend-on-Sea
Barnet
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Louisville to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Louisville to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Louisville.

Can Cheapflights find flights from Louisville to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Louisville to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Louisville to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Louisville to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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