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Cheap flights from Louisville to London Heathrow Airport from £238

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Louisville Intl to London Heathrow are usually found in October or February, booked 69 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Louisville to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 October 2025.

Round-trip from

£420

One-way from

£238

Popular in

June

Cheapest in

October

Average price

£527
Virgin Atlantic
  • Virgin Atlantic
  • 25/11-9/12
  • 2 total stops
  • 32h 51m total
  • Louisville to London
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3/11
  • 3/11
  • 3 total stops
  • 43h 43m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£167 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find flight deals from Louisville to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to Heathrow
Explore the most affordable flight options available from Louisville to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Tue 25/1106:35SDF - LHR
1 stop19h 30mVirgin Atlantic
Tue 9/1208:55LHR - SDF
1 stop13h 21mVirgin Atlantic
Deal found 16/10£420
Mon 24/1115:09SDF - LHR
1 stop11h 41mKLM
Tue 9/1211:45LHR - SDF
2 stops14h 28mKLM
Deal found 16/10£437
Wed 26/1115:09SDF - LHR
1 stop10h 16mDelta
Wed 10/1211:30LHR - SDF
2 stops17h 29mDelta
Deal found 16/10£440
Sun 23/1114:50SDF - LHR
1 stop13h 30mDelta
Wed 10/1211:05LHR - SDF
1 stop12h 40mDelta
Deal found 16/10£442
Wed 29/1012:54SDF - LHR
2 stops15h 51mDelta
Fri 7/1111:30LHR - SDF
2 stops16h 04mDelta
Deal found 15/10£444
Mon 24/1114:22SDF - LHR
2 stops14h 53mVirgin Atlantic
Thu 4/1211:45LHR - SDF
2 stops14h 28mVirgin Atlantic
Deal found 16/10£444
Sat 22/1119:26SDF - LHR
1 stop30h 39mDelta
Thu 11/1210:45LHR - SDF
1 stop13h 07mDelta
Deal found 16/10£446
Tue 25/1109:00SDF - LHR
2 stops17h 10mMultiple Airlines
Tue 9/1211:10LHR - SDF
2 stops17h 22mMultiple Airlines
Deal found 16/10£453
Wed 26/1109:00SDF - LHR
2 stops17h 10mMultiple Airlines
Wed 10/1211:10LHR - SDF
2 stops16h 19mMultiple Airlines
Deal found 16/10£454
Tue 25/1109:55SDF - LHR
2 stops16h 15mUnited Airlines
Tue 9/1206:50LHR - SDF
2 stops17h 32mUnited Airlines
Deal found 16/10£461
Mon 24/1112:37SDF - LHR
1 stop13h 28mDelta
Mon 8/1206:30LHR - SDF
2 stops17h 22mDelta
Deal found 16/10£462

Cheapflights Fare Finder

 
Customise your flight search to find flights from Louisville 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 17 October 2025.
Use the filters below to find and compare flights from Louisville to London Heathrow Airport that are best for you.

Fly from

Louisville

Fly to

Heathrow

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 24/11

15:09-07:50

1 stop11h 41m

London Heathrow

Tue 9/12

11:45-21:13

2 stops14h 28m

£437

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 24/11

10:37-09:00

1 stop17h 23m

London Heathrow

Thu 4/12

11:30-22:58

2 stops16h 28m

£440

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/11

15:09-06:25

1 stop10h 16m

London Heathrow

Wed 10/12

11:30-23:59

2 stops17h 29m

£440

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/11

15:09-09:00

1 stop12h 51m

London Heathrow

Wed 10/12

08:55-19:12

1 stop15h 17m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 25/11

15:09-09:00

1 stop12h 51m

London Heathrow

Wed 10/12

12:30-21:31

1 stop14h 01m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 23/11

14:50-09:20

1 stop13h 30m

London Heathrow

Wed 10/12

11:05-18:45

1 stop12h 40m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 25/11

12:37-07:05

1 stop13h 28m

London Heathrow

Tue 9/12

11:45-21:13

2 stops14h 28m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 23/11

11:43-06:20

1 stop13h 37m

London Heathrow

Thu 11/12

15:50-23:59

1 stop13h 09m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 25/11

12:57-06:25

1 stop12h 28m

London Heathrow

Fri 12/12

10:45-18:52

1 stop13h 07m

£442

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 24/11

12:37-07:05

1 stop13h 28m

London Heathrow

Fri 12/12

13:00-21:13

1 stop13h 13m

£442

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 18 results
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
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 Louisville to London Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from Louisville to Heathrow. Price data was last updated on 10 October 2025.

The best time to book flights from Louisville to London Heathrow Airport is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £393). Flying from Louisville 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.

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

Find hourly flight availability from Louisville 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 17 October 2025.

It’s typically best to fly out from Louisville to London Heathrow Airport at midday. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.

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 17 October 2025.
Read reviews from past customers who have flown with Virgin Atlantic and American Airlines from Louisville to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
American Airlines
7.2
Good
11,040 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Food

6.9

Crew

8.1

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

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

  • 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. 2 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 11h 41m. Fly via KLM or Delta 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.

  • What are the cheapest airlines flying from Louisville to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Louisville to London Heathrow Airport round-trip from £537. Another airline that can offer you cheap pricing is American Airlines. You may be able to fly from Louisville to London Heathrow Airport for 27% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at £296. United Airlines flights start at £297 while deals on Air Canada start at £297 one-way.

  • 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, November is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £393). Flying from Louisville 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
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Wembley
Deal
Ilford
Crawley
Hayes
Watford
Winchester
Swindon
Chichester
Romford
Ipswich
Brentford
Dartford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Louisville to Heathrow

Discover the top 2 airlines that operate flights from Louisville 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£537Average£804FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
American AirlinesCheapest£555Average£836FlexibilityNo 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 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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