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Cheap flights from Kentucky to London Heathrow Airport from £231

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
28 May — 4 Jun1
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 28 April 2026.

Tue 3/1114:20
SDF
-
LHR
1 stop15h 30m
United Airlines
Thu 5/1106:50
LHR
-
SDF
2 stops14h 59m
United Airlines
Deal found 25/4£572
Mon 9/1111:00
TRI
-
LHR
1 stop20h 00m
United Airlines
Wed 11/1106:50
LHR
-
TRI
2 stops14h 50m
United Airlines
Deal found 23/4£573
Tue 10/1109:00
LEX
-
LHR
1 stop17h 55m
United Airlines
Thu 12/1106:50
LHR
-
LEX
2 stops16h 47m
United Airlines
Deal found 24/4£573
Tue 3/1120:14
SDF
-
LHR
1 stop29h 36m
British Airways
Fri 6/1106:15
LHR
-
SDF
2 stops21h 44m
British Airways
Deal found 23/4£577
Wed 11/1111:10
LEX
-
LHR
2 stops14h 30m
United Airlines
Fri 13/1106:35
LHR
-
LEX
2 stops22h 26m
United Airlines
Deal found 24/4£578
Tue 3/1114:20
SDF
-
LHR
2 stops35h 50m
United Airlines
Fri 6/1106:35
LHR
-
SDF
2 stops17h 34m
United Airlines
Deal found 23/4£581
Fri 11/920:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Fri 25/913:05
LHR
-
BNA
1 stop12h 25m
Icelandair
Deal found 24/4£611
Sun 13/920:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Sun 27/921:25
LHR
-
BNA
1 stop28h 05m
Icelandair
Deal found 27/4£612
Sun 20/920:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Sun 27/921:25
LHR
-
BNA
1 stop28h 05m
Icelandair
Deal found 25/4£613
Wed 2/920:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Fri 11/913:05
LHR
-
BNA
1 stop12h 25m
Icelandair
Deal found 24/4£614
Wed 26/820:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Tue 1/921:25
LHR
-
BNA
1 stop28h 05m
Icelandair
Deal found 25/4£615
Mon 4/520:55
BNA
-
LHR
1 stop17h 25m
Icelandair
Tue 12/521:25
LHR
-
BNA
1 stop28h 05m
Icelandair
Deal found 23/4£616

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 28 April 2026.

Round-trip from

£611

One-way from

£231

Popular in

June

Cheapest in

October

Average price

£700
Icelandair
  • Icelandair
  • 11/9-25/9
  • 2 total stops
  • 29h 50m total
  • Kentucky to London
Search Deals
British Airways
  • British Airways
  • 14/10
  • Nonstop
  • 7h 50m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 28 April 2026.
Use the filters below to find and compare flights from Kentucky to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

EvansvilleLondon

EVV - LHR

EVVLHR

Evansville Dress Regional

Sun 23/8

06:00-10:55

1 stop22h 55m

London Heathrow

Fri 4/12

15:00-22:58

1 stop13h 58m

£662

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Mon 7/9

07:24-06:50

1 stop18h 26m

London Heathrow

Wed 16/9

11:10-23:53

1 stop17h 43m

£665

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Wed 23/9

06:24-06:50

1 stop19h 26m

London Heathrow

Fri 16/10

11:10-23:53

1 stop17h 43m

£665

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 30/9

15:40-11:35

1 stop14h 55m

London Heathrow

Tue 6/10

08:45-10:36

2 stops30h 51m

£673

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Fri 16/10

19:59-13:15

1 stop12h 16m

London Heathrow

Fri 30/10

06:30-18:46

2 stops16h 16m

£678

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Mon 7/9

06:00-06:45

1 stop19h 45m

London Heathrow

Wed 16/9

17:50-10:20

2 stops45h 30m

£682

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

Thu 17/9

12:04-11:15

1 stop18h 11m

London Heathrow

Tue 22/9

07:50-23:59

2 stops21h 09m

£683

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 30/9

18:15-13:05

1 stop13h 50m

London Heathrow

Tue 6/10

13:25-21:45

1 stop13h 20m

£690

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 2/9

07:15-07:45

1 stop19h 30m

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

£690

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 12/8

13:35-06:55

1 stop12h 20m

London Heathrow

Fri 21/8

09:30-20:48

2 stops16h 18m

£693

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Kentucky to London Heathrow Airport?

The price you pay for your flight from Kentucky to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £333). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £700). 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 Kentucky to London Heathrow Airport?

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?

    United Airlines, Delta, and British Airways can get you from Kentucky to London Heathrow Airport in just under 12h 16m. Your travel time can differ by up to 5h 55m. 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 Louisville Intl - 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 £333). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £700). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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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Fly with Cheapflights

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

Deals for Kentucky to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Kentucky to Heathrow for you. Better yet — we are completely free to use.

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.

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

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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