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Cheap flights from Kentucky to London Heathrow Airport from £136

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
10 Sep — 17 Sep1
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 11 August 2026.

Wed 2/1219:33 -
2 stops17h 12m
Fri 4/1208:45 -
2 stops18h 45m
Deal found 10/8£572
Mon 16/1111:15 -
1 stop16h 55m
Wed 18/1106:50 -
2 stops15h 47m
Deal found 10/8£574
Mon 19/1017:19 -
1 stop13h 56m
Wed 28/1007:35 -
2 stops18h 00m
Deal found 9/8£619
Tue 22/910:29 -
1 stop19h 21m
Wed 30/906:15 -
2 stops21h 18m
Deal found 10/8£637
Mon 26/1017:35 -
1 stop11h 00m
Fri 6/1106:15 -
2 stops20h 22m
Deal found 11/8£638
Fri 16/1020:55 -
1 stop17h 25m
Tue 20/1014:10 -
3 stops33h 34m
Deal found 8/8£640
Mon 19/1013:21 -
1 stop18h 29m
Wed 28/1008:20 -
1 stop19h 07m
Deal found 9/8£643
Wed 28/1018:30 -
1 stop11h 20m
Mon 9/1114:50 -
3 stops34h 48m
Deal found 8/8£644
Wed 2/1216:04 -
1 stop10h 46m
Fri 4/1216:30 -
1 stop12h 18m
Deal found 10/8£646
Wed 23/920:55 -
2 stops18h 00m
Wed 30/906:30 -
2 stops19h 00m
Deal found 11/8£647
Wed 7/1018:58 -
1 stop10h 52m
Thu 15/1007:50 -
2 stops19h 40m
Deal found 9/8£647
Wed 7/1018:50 -
2 stops20h 10m
Mon 19/1009:30 -
3 stops17h 24m
Deal found 6/8£648

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 11 August 2026.

Round-trip from

£572

One-way from

£136

Popular in

June

Cheapest in

November

Average price

£817
Lufthansa
  • Lufthansa
  • 2/12-4/12
  • 4 total stops
  • 35h 57m total
  • Kentucky to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 8/9
  • 2 total stops
  • 15h 40m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 11 August 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

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 16/11

11:15-09:10

1 stop16h 55m

London Heathrow

Wed 18/11

06:50-17:37

2 stops15h 47m

£574

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 5/10

15:45-11:35

1 stop14h 50m

London Heathrow

Thu 15/10

07:25-20:49

2 stops18h 24m

£656

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 9/11

17:40-12:00

1 stop13h 20m

London Heathrow

Fri 13/11

06:50-20:54

2 stops19h 04m

£670

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Mon 21/9

13:57-06:45

1 stop11h 48m

London Heathrow

Fri 2/10

14:10-23:55

1 stop14h 45m

£677

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Sun 8/11

11:05-05:55

1 stop13h 50m

London Heathrow

Tue 17/11

07:40-17:20

1 stop14h 40m

£677

EvansvilleLondon

EVV Evansville Dress Regional - LHR London Heathrow

EVVLHR

Evansville Dress Regional

Fri 13/11

10:12-06:25

1 stop14h 13m

London Heathrow

Wed 18/11

08:40-22:12

2 stops19h 32m

£686

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 4/11

13:45-06:20

1 stop11h 35m

London Heathrow

Mon 9/11

11:05-23:30

2 stops41h 25m

£688

CincinnatiLondon

CVG Cincinnati Cinci./N. Kentucky - LHR London Heathrow

CVGLHR

Cincinnati Cinci./N. Kentucky

Sun 7/2

11:40-07:55

2 stops15h 15m

London Heathrow

Sat 13/2

08:40-22:36

2 stops18h 56m

£689

EvansvilleLondon

EVV Evansville Dress Regional - LHR London Heathrow

EVVLHR

Evansville Dress Regional

Mon 7/9

06:25-08:50

2 stops20h 25m

London Heathrow

Tue 15/9

06:30-17:17

2 stops16h 47m

£697

CincinnatiLondon

CVG Cincinnati Cinci./N. Kentucky - LHR London Heathrow

CVGLHR

Cincinnati Cinci./N. Kentucky

Tue 15/9

22:40-11:30

Nonstop7h 50m

London Heathrow

Wed 23/9

07:50-21:04

2 stops18h 14m

£700

Flights are sorted by cheapest return flights first.

Deals found on 8/8

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

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

Currently, February is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £466). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £1,090). 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?

Airfare is below average for this route at the moment.
Kentucky to London Heathrow Airport flights typically cost between £689 and £872 in November.
The cheapest return price found within the last 5 days was £574 on United Airlines (16 Nov–18 Nov).

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 7h 50m. Your travel time can differ by up to 9h 05m. 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, February is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £466). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £1,090). 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
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Southend-on-Sea
Swindon
Enfield
Kingston upon Thames
Southall
Poole

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 London City flights
Orlando to Heathrow flights
Boston to Gatwick flights
Atlanta to Heathrow flights
Reagan-National to Heathrow flights
Newark to Luton flights
Dulles Intl to Gatwick flights
Newark to Stansted flights
Philadelphia to Heathrow flights
Miami to Heathrow flights
Denver to Heathrow flights
Hobby to Heathrow flights
Boston to London City flights
Dulles Intl to London City flights
Los Angeles to Gatwick flights
Baltimore to Gatwick flights
Boston to Stansted flights
George Bush Intcntl to Heathrow flights
Reagan-National to Gatwick flights
Los Angeles to Stansted flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
Sky Harbor Intl to Heathrow flights
Los Angeles to London City flights
O'Hare Intl to Stansted flights
O'Hare Intl to London City flights
Tampa to Heathrow flights
Orlando to Gatwick flights
San Francisco to London City flights
Minneapolis to Heathrow flights
San Francisco to Stansted flights
Raleigh to Heathrow flights

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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