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Cheap flights from Kentucky to London Heathrow Airport from £185

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kentucky to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Kentucky to Heathrow
Explore the most affordable flight options available from Kentucky to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Wed 8/412:15
SDF
-
LHR
1 stop18h 00m
British Airways
Mon 13/419:25
LHR
-
SDF
2 stops31h 03m
British Airways
Deal found 20/1£441
Tue 31/311:42
TYS
-
LHR
1 stop14h 58m
Iberia
Tue 14/420:50
LHR
-
TYS
2 stops29h 45m
Iberia
Deal found 20/1£441
Wed 15/411:31
TYS
-
LHR
1 stop15h 09m
Iberia
Mon 20/420:50
LHR
-
TYS
2 stops29h 45m
Iberia
Deal found 21/1£442
Tue 14/411:01
LEX
-
LHR
1 stop18h 29m
British Airways
Tue 28/406:15
LHR
-
LEX
2 stops22h 37m
British Airways
Deal found 20/1£442
Tue 17/213:58
LEX
-
LHR
1 stop15h 02m
Finnair
Tue 24/208:20
LHR
-
LEX
1 stop18h 42m
Finnair
Deal found 20/1£444
Wed 18/212:21
TYS
-
LHR
1 stop13h 29m
Finnair
Wed 25/211:55
LHR
-
TYS
1 stop17h 04m
Finnair
Deal found 19/1£445
Tue 21/414:49
TYS
-
LHR
1 stop11h 01m
British Airways
Tue 5/509:15
LHR
-
TYS
2 stops17h 42m
British Airways
Deal found 20/1£447
Wed 18/212:07
SDF
-
LHR
1 stop17h 18m
Multiple Airlines
Wed 25/206:15
LHR
-
SDF
2 stops22h 01m
Multiple Airlines
Deal found 21/1£447
Tue 27/117:30
LEX
-
LHR
1 stop13h 05m
Multiple Airlines
Tue 3/206:05
LHR
-
LEX
2 stops22h 18m
Multiple Airlines
Deal found 20/1£447
Wed 11/217:15
TYS
-
LHR
1 stop13h 20m
British Airways
Wed 18/209:55
LHR
-
TYS
1 stop12h 42m
British Airways
Deal found 21/1£447
Wed 18/216:02
TYS
-
LHR
1 stop11h 13m
British Airways
Wed 25/213:10
LHR
-
TYS
1 stop12h 38m
British Airways
Deal found 20/1£450
Sun 8/218:40
CVG
-
LHR
1 stop11h 40m
Air Canada
Tue 17/218:00
LHR
-
CVG
1 stop29h 00m
Air Canada
Deal found 20/1£450

Find flight deals from Kentucky to Heathrow

Keep the following information in mind while searching for Kentucky to Heathrow flight deals. Data was last updated 22 January 2026.

Round-trip from

£441

One-way from

£185

Popular in

June

Cheapest in

October

Average price

£582
British Airways
  • British Airways
  • 8/4-13/4
  • 3 total stops
  • 49h 03m total
  • Kentucky to London
Search Deals
British Airways
  • British Airways
  • 14/7
  • 1 total stop
  • 14h 00m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kentucky to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Kentucky to London Heathrow Airport that are best for you.

Fly from

Kentucky

Fly to

Heathrow

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

12:07-10:25

1 stop17h 18m

London Heathrow

Wed 25/2

06:15-23:16

2 stops22h 01m

£447

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 18/2

14:01-10:00

1 stop14h 59m

London Heathrow

Wed 25/2

08:20-22:38

1 stop19h 18m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 22/3

18:21-12:15

1 stop13h 54m

London Heathrow

Tue 31/3

08:55-23:20

1 stop19h 25m

£453

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Wed 18/2

15:26-09:20

2 stops12h 54m

London Heathrow

Wed 25/2

10:05-18:43

2 stops13h 38m

£456

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Tue 5/5

22:15-11:10

Nonstop7h 55m

London Heathrow

Tue 19/5

14:15-18:05

Nonstop8h 50m

£459

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 20/4

16:33-08:00

1 stop10h 27m

London Heathrow

Thu 30/4

16:25-10:16

1 stop22h 51m

£461

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Tue 5/5

14:15-10:00

1 stop14h 45m

London Heathrow

Tue 19/5

14:05-13:07

2 stops28h 02m

£462

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

Tue 28/4

16:27-10:30

1 stop13h 03m

London Heathrow

Tue 19/5

09:45-23:24

1 stop18h 39m

£462

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 27/2

13:50-05:55

1 stop11h 05m

London Heathrow

Sat 7/3

06:50-19:29

2 stops17h 39m

£463

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 27/2

13:50-05:55

1 stop11h 05m

London Heathrow

Sun 8/3

06:50-19:47

2 stops17h 57m

£464

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 60 results
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Best time to book a flight from Kentucky to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kentucky with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, April is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £424). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £683). 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.

Related info for your journey

Find useful and relevant information for your journey from Kentucky to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Finnair, American Airlines, and British Airways can get you from Kentucky to London Heathrow Airport in just under 7h 55m. Your travel time can differ by up to 7h 04m. Kentucky and London Heathrow Airport are separated by a distance of 3950 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Kentucky to London Heathrow Airport?

    When deciding which route to take from Kentucky to London Heathrow Airport consider Nashville Intl - London Heathrow, Cincinnati Cinci./N. Kentucky - London Heathrow or Knoxville McGhee Tyson - London Heathrow as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kentucky 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 Kentucky to London Heathrow Airport?

    Currently, April is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £424). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £683). 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
Milton Keynes
Luton
Croydon
Northampton
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Swindon
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kentucky to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Newark to Stansted flights
Newark to Luton flights
Dulles Intl to Gatwick flights
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Los Angeles to Gatwick flights
Reagan-National to Heathrow flights
Philadelphia to Heathrow flights
Boston to Stansted flights
Dulles Intl to London City flights
Tampa to Heathrow flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to London City flights
Reagan-National to Gatwick flights
Los Angeles to Stansted flights
Minneapolis to Heathrow flights
O'Hare Intl to London City flights
San Francisco to London City flights
O'Hare Intl to Stansted flights
George Bush Intcntl to Heathrow flights
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Fly with Cheapflights

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

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

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

Need flexible booking options for your flight to Heathrow from Kentucky? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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