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Cheap flights from Kentucky to London Heathrow Airport from £149

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
9 lug — 16 lug1
1 adult

Cheap flight deals from Kentucky to Heathrow

Keep the following information in mind while searching for Kentucky to Heathrow flight deals. Data was last updated 4 luglio 2025.

Round-trip from

£418

One-way from

£149

Popular in

June

Cheapest in

August

Average price

£864
Delta
  • Delta
  • 20/8-26/8
  • 3 total stops
  • 34h 21m total
  • Kentucky to London
Search Deals
Icelandair
  • Icelandair
  • 24/9
  • 1 total stop
  • 17h 25m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£122 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Kentucky to Heathrow

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 4 luglio 2025.

dom 3/820:15LEX - LHR
1 stop12h 15mVirgin Atlantic
mar 19/806:15LHR - LEX
2 stops15h 54mVirgin Atlantic
Deal found 3/7£393
mer 13/816:19TYS - LHR
1 stop9h 56mVirgin Atlantic
mer 27/815:15LHR - TYS
1 stop13h 33mVirgin Atlantic
Deal found 3/7£399
mer 20/813:53TYS - LHR
1 stop18h 37mDelta
mer 27/811:30LHR - TYS
2 stops17h 18mDelta
Deal found 3/7£418
mer 27/816:20SDF - LHR
1 stop10h 45mDelta
mer 3/911:30LHR - SDF
2 stops17h 26mDelta
Deal found 3/7£418
mer 27/812:45SDF - LHR
2 stops13h 30mVirgin Atlantic
mer 3/911:30LHR - SDF
2 stops16h 12mVirgin Atlantic
Deal found 3/7£421
mer 20/818:14TYS - LHR
1 stop11h 56mKLM
mer 27/809:20LHR - TYS
1 stop12h 59mKLM
Deal found 4/7£423
mer 27/815:11SDF - LHR
1 stop10h 34mKLM
mer 3/915:15LHR - SDF
1 stop13h 41mKLM
Deal found 3/7£424
mar 23/909:05SDF - LHR
2 stops16h 25mMultiple Airlines
mar 7/1009:30LHR - SDF
2 stops15h 57mMultiple Airlines
Deal found 3/7£454
gio 14/815:40LEX - LHR
1 stop16h 50mDelta
gio 21/806:15LHR - LEX
2 stops17h 51mDelta
Deal found 3/7£454
ven 15/813:21TRI - LHR
1 stop12h 24mKLM
mar 2/915:15LHR - TRI
1 stop12h 20mKLM
Deal found 3/7£461
gio 14/815:40LEX - LHR
1 stop14h 30mKLM
gio 21/809:20LHR - LEX
1 stop12h 49mKLM
Deal found 3/7£461
dom 21/913:00SDF - LHR
2 stops15h 35mUnited Airlines
mar 30/914:05LHR - SDF
2 stops26h 28mUnited Airlines
Deal found 3/7£463

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 4 luglio 2025.
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

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

dom 3/8

20:15-13:30

1 stop12h 15m

London Heathrow

mar 19/8

06:15-17:09

2 stops15h 54m

£393

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mer 20/8

12:25-08:55

1 stop15h 30m

London Heathrow

mar 26/8

06:15-20:06

2 stops18h 51m

£418

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mer 27/8

16:20-08:05

1 stop10h 45m

London Heathrow

mer 3/9

11:30-23:56

2 stops17h 26m

£418

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mer 27/8

12:45-07:15

2 stops13h 30m

London Heathrow

mer 3/9

11:30-22:42

2 stops16h 12m

£421

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mer 20/8

18:14-11:10

1 stop11h 56m

London Heathrow

mar 26/8

11:45-18:22

1 stop11h 37m

£424

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mer 27/8

15:11-06:45

1 stop10h 34m

London Heathrow

mer 3/9

15:15-23:56

1 stop13h 41m

£424

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

mar 23/9

09:05-06:30

2 stops16h 25m

London Heathrow

mar 7/10

09:30-20:27

2 stops15h 57m

£454

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

gio 14/8

15:40-13:30

1 stop16h 50m

London Heathrow

gio 21/8

06:15-19:06

2 stops17h 51m

£454

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

ven 15/8

13:21-06:45

1 stop12h 24m

London Heathrow

mar 2/9

15:15-22:35

1 stop12h 20m

£461

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

dom 21/9

13:00-09:35

2 stops15h 35m

London Heathrow

mar 30/9

14:05-11:33

2 stops26h 28m

£463

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 58 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, January is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £112). Flying from Kentucky to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from KY to LHR?

Find hourly flight availability from Kentucky to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 luglio 2025.

When flying from Kentucky to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 4 luglio 2025.
Read through reviews of airlines operating flights from Kentucky to London Heathrow Airport, such as Delta, KLM, andFinnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,982 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,304 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,844 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Kentucky to London Heathrow Airport one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £149. Users have also found prices from £289 and £301 on Air Canada and British Airways, respectively.

  • 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, January is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £112). Flying from Kentucky to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Kentucky?

Book flights to Kentucky if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

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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O'Hare Intl to Gatwick flights
Newark to Stansted flights
Boston to London City flights
Los Angeles to Gatwick flights
San Francisco to Gatwick flights
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O'Hare Intl to London City flights
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Seattle to Gatwick flights
San Francisco to London City flights
Newark to Luton flights
Minneapolis to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Seattle to London City flights
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Top 2 airlines flying from Kentucky to Heathrow

Discover the top 2 airlines that operate flights from Kentucky to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 luglio 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£529Average£791FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£546Average£823FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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