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

Flying on United Airlines is currently your cheapest option to Louisville, with prices starting at £647. Additional return tickets that might be worth considering are offered by Delta and Scandinavian Airlines, with the lowest prices starting at £704 and £798, respectively.

What is the cheapest day to fly from London Heathrow Airport to Louisville?

Travellers seeking maximum savings on their London Heathrow Airport to Louisville flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Louisville ranges from 79.0 - 135.0 inches per month. May is typically the wettest month, when rainfall can reach 135.0 mm. September is typically the driest time to visit Louisville when rainfall is around 79.0 mm.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

What are the most popular airlines that fly from London Heathrow Airport to Louisville?

The most popular airlines flying from London Heathrow Airport to Louisville are American Airlines, Air France and Finnair. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from London Heathrow Airport to Louisville?

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Louisville. Check prices with Cheapflights to find a great deal for your trip.

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

Find a great deal and save up to 96% by booking at least 56 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Louisville within the next two weeks, with the cheapest ticket starting at £532.

What is the cheapest month to fly from London Heathrow Airport to Louisville?

September is one of the best times of the year to fly to Louisville from London Heathrow Airport. Prices for September average £605 per person but you can even find prices for as low as £432. The most expensive prices can be found in the month of July. Opting for a September flight can save you 45% on your journey compared to booking in July

What airport do you fly into for flights to Louisville from London Heathrow?

Most people fly into Louisville Intl (SDF) if they book a flight to Louisville from London Heathrow. On average, Louisville Intl has 0 inbound flights from London Heathrow per day from 9 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

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

How can I find direct flights from Heathrow to Louisville?

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

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

Yes. Cheapflights offers flight deals from Heathrow to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£311+ Flights from London Heathrow Airport to Louisville

Cheapflights Tip: The best prices from London Heathrow to Louisville Intl are usually found in January or February, booked 56 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Heathrow to Louisville

Round-trip from	£647
One-way from	£311
Popular in	August
Cheapest in	January
Average price	£733

United Airlines
11/7-14/7
4 total stops
36h 36m total
London to Louisville

Search Deals

26/8
2 total stops
51h 03m total
London to Louisville

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£90 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Heathrow to Louisville

Cheapest flights from Heathrow to Louisville
Explore the most affordable flight options available from Heathrow to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Tue 8/707:25LHR - SDF

2 stops18h 01mUnited Airlines

Wed 6/814:50SDF - LHR

1 stop14h 50mUnited Airlines

Deal found 30/6£646

Tue 8/714:10LHR - SDF

1 stop13h 04mLufthansa

Wed 6/819:20SDF - LHR

1 stop11h 25mLufthansa

Deal found 30/6£660

Fri 11/709:15LHR - SDF

1 stop18h 55mMultiple Airlines

Wed 16/716:00SDF - LHR

1 stop10h 20mMultiple Airlines

Deal found 30/6£701

Fri 11/708:40LHR - SDF

2 stops14h 54mDelta

Wed 16/719:41SDF - LHR

1 stop12h 29mDelta

Deal found 30/6£704

Wed 13/806:40LHR - SDF

2 stops19h 34mScandinavian Airlines

Wed 20/812:45SDF - LHR

2 stops22h 15mScandinavian Airlines

Deal found 29/6£798

Wed 13/806:30LHR - SDF

2 stops21h 30mVirgin Atlantic

Wed 20/819:34SDF - LHR

1 stop12h 36mVirgin Atlantic

Deal found 29/6£863

Mon 28/709:15LHR - SDF

1 stop18h 55mFinnair

Mon 4/814:03SDF - LHR

1 stop15h 47mFinnair

Deal found 30/6£871

Wed 13/809:20LHR - SDF

1 stop14h 20mKLM

Wed 20/819:34SDF - LHR

1 stop12h 36mKLM

Deal found 29/6£882

Tue 1/709:20LHR - SDF

1 stop12h 32mAir France

Wed 1/1015:09SDF - LHR

2 stops14h 06mAir France

Deal found 29/6£892

Thu 3/715:30LHR - SDF

1 stop12h 29mBritish Airways

Sat 5/720:02SDF - LHR

1 stop30h 38mBritish Airways

Deal found 29/6£1,166

Best flights from Heathrow to Louisville
Discover carefully curated flight deals from Heathrow to Louisville that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 July 2025.

Fri 11/708:30LHR - SDF

2 stops17h 36mUnited Airlines

Mon 14/710:00SDF - LHR

2 stops19h 00mUnited Airlines

Deal found 1/7£647

Fri 11/709:15LHR - SDF

1 stop18h 55mMultiple Airlines

Wed 16/716:00SDF - LHR

1 stop10h 20mMultiple Airlines

Deal found 30/6£701

Fri 11/708:40LHR - SDF

2 stops14h 54mDelta

Wed 16/719:41SDF - LHR

1 stop12h 29mDelta

Deal found 30/6£704

Wed 13/806:40LHR - SDF

2 stops19h 34mScandinavian Airlines

Wed 20/812:45SDF - LHR

2 stops22h 15mScandinavian Airlines

Deal found 29/6£798

Wed 13/806:30LHR - SDF

2 stops21h 30mVirgin Atlantic

Wed 20/819:34SDF - LHR

1 stop12h 36mVirgin Atlantic

Deal found 29/6£863

Mon 28/709:15LHR - SDF

1 stop18h 55mFinnair

Mon 4/814:03SDF - LHR

1 stop15h 47mFinnair

Deal found 30/6£871

Mon 28/716:40LHR - SDF

2 stops22h 17mLufthansa

Mon 4/811:25SDF - LHR

1 stop13h 55mLufthansa

Deal found 30/6£872

Wed 13/809:20LHR - SDF

1 stop14h 20mKLM

Wed 20/819:34SDF - LHR

1 stop12h 36mKLM

Deal found 29/6£882

Mon 21/711:20LHR - SDF

1 stop12h 49mAir France

Thu 24/715:21SDF - LHR

1 stop10h 24mAir France

Deal found 30/6£1,067

Last-minute flights from Heathrow to Louisville
Discover last-minute flight deals from Heathrow to Louisville. Data last updated 1 July 2025 and is based on user searches.

Tue 1/709:20LHR - SDF

1 stop12h 32mAir France

Wed 1/1015:09SDF - LHR

2 stops14h 06mAir France

Deal found 29/6£892

Thu 3/715:30LHR - SDF

1 stop12h 29mBritish Airways

Sat 5/720:02SDF - LHR

1 stop30h 38mBritish Airways

Deal found 29/6£1,166

Sun 6/709:15LHR - SDF

1 stop18h 01mAmerican Airlines

Wed 6/819:11SDF - LHR

1 stop12h 19mAmerican Airlines

Deal found 30/6£1,113

Tue 8/707:25LHR - SDF

2 stops19h 26mUnited Airlines

Wed 6/811:25SDF - LHR

2 stops14h 05mUnited Airlines

Deal found 30/6£646

Tue 8/714:10LHR - SDF

1 stop13h 04mLufthansa

Wed 6/819:20SDF - LHR

1 stop11h 25mLufthansa

Deal found 30/6£660

Fri 11/709:15LHR - SDF

1 stop18h 55mMultiple Airlines

Wed 16/716:00SDF - LHR

1 stop10h 20mMultiple Airlines

Deal found 30/6£701

Fri 11/708:40LHR - SDF

2 stops14h 54mDelta

Wed 16/719:41SDF - LHR

1 stop12h 29mDelta

Deal found 30/6£704

Fri 11/721:05LHR - SDF

3 stops29h 46mScandinavian Airlines

Mon 14/712:50SDF - LHR

2 stops24h 40mScandinavian Airlines

Deal found 1/7£1,205

Sun 20/711:20LHR - SDF

1 stop15h 01mKLM

Thu 24/712:50SDF - LHR

2 stops12h 55mKLM

Deal found 30/6£1,086

Sun 20/718:40LHR - SDF

2 stops31h 59mScandinavian Airlines

Thu 24/715:21SDF - LHR

2 stops21h 19mScandinavian Airlines

Deal found 30/6£1,152

Mon 21/708:30LHR - SDF

2 stops13h 50mAir Canada

Thu 24/711:25SDF - LHR

2 stops14h 05mAir Canada

Deal found 30/6£1,748

Sun 27/711:20LHR - SDF

1 stop12h 49mVirgin Atlantic

Sun 3/820:14SDF - LHR

1 stop30h 01mVirgin Atlantic

Deal found 29/6£918

One-way flights from Heathrow to Louisville
Search for one-way flight options from Heathrow to Louisville. Find affordable one-way fares based on user searches. Data last updated 1 July 2025.

Tue 26/822:15LHR - SDF

2 stops51h 03mMultiple Airlines

Deal found 29/6£311

Thu 28/809:30LHR - SDF

2 stops16h 32mLufthansa

Deal found 1/7£480

Thu 28/808:50LHR - SDF

2 stops19h 12mAer Lingus

Deal found 29/6£488

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 11/7

08:30-21:06

2 stops17h 36m

Louisville Intl

Mon 14/7

10:00-10:00

2 stops19h 00m

£647

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 11/7

09:15-23:10

1 stop18h 55m

Louisville Intl

Wed 16/7

16:00-07:20

1 stop10h 20m

£701

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 11/7

08:40-18:34

2 stops14h 54m

Louisville Intl

Wed 16/7

19:41-13:10

1 stop12h 29m

£704

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 13/8

06:40-21:14

2 stops19h 34m

Louisville Intl

Wed 20/8

12:45-16:00

2 stops22h 15m

£798

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 13/8

06:30-23:00

2 stops21h 30m

Louisville Intl

Wed 20/8

19:34-13:10

1 stop12h 36m

£863

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 28/7

09:15-23:10

1 stop18h 55m

Louisville Intl

Mon 4/8

14:03-10:50

1 stop15h 47m

£871

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 28/7

16:40-09:57

2 stops22h 17m

Louisville Intl

Mon 4/8

11:25-06:20

1 stop13h 55m

£872

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 13/8

09:20-18:40

1 stop14h 20m

Louisville Intl

Wed 20/8

19:34-13:10

1 stop12h 36m

£882

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 21/7

11:20-19:09

1 stop12h 49m

Louisville Intl

Thu 24/7

15:21-06:45

1 stop10h 24m

£1,067

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 26/8

22:15-20:18

2 stops51h 03m

£311

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 12 results

Best time to book a flight from Heathrow to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Heathrow 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 London Heathrow Airport to Louisville

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of £662). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £1,019). 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 LHR to SDF?

It’s typically best to fly out from London Heathrow Airport to Louisville in the afternoon. Doing so could potentially save you 4% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Louisville

Read reviews from past customers who have flown with Delta, KLM, andFinnair from London Heathrow Airport to Louisville. 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.

Delta

8.0

Very Good

7,973 reviews

Check prices

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

7,973 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

1,366 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

1,301 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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!

Air France

7.5

Good

1,472 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

8,852 reviews

Delta

8.0

Very Good

7,973 reviews

Check prices

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

What airport do you fly into for flights to Louisville from London Heathrow?
Most people fly into Louisville Intl (SDF) if they book a flight to Louisville from London Heathrow. On average, Louisville Intl has 0 inbound flights from London Heathrow per day from 9 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.
What are the cheapest airlines flying from London Heathrow Airport to Louisville round-trip?
Flying on United Airlines is currently your cheapest option to Louisville, with prices starting at £647. Additional return tickets that might be worth considering are offered by Delta and Scandinavian Airlines, with the lowest prices starting at £704 and £798, respectively.
Can I find deals for flights from Heathrow to Louisville that include hotel bookings?
Yes. In addition to deals on Heathrow to Louisville flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Louisville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Louisville.
Can I find deals for business class flights from Heathrow to Louisville?
Yes. Cheapflights offers flight deals from Heathrow to Louisville 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 London Heathrow Airport to Louisville?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of £662). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £1,019). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Louisville

Direct flights to United States

Top 9 airlines flying from Heathrow to Louisville

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£412	Average£503	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£412	Average£545	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£428	Average£557	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
American Airlines	Cheapest£432	Average£640	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£432	Average£569	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
KLM	Cheapest£437	Average£498	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£449	Average£585	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Lufthansa	Cheapest£458	Average£528	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£468	Average£680	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Louisville. 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 Heathrow to Louisville?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Louisville for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Louisville with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Louisville from Heathrow today and book when prices fit your budget.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London Heathrow Airport to Louisville from £311

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Louisville Intl are usually found in January or February, booked 56 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Heathrow to Louisville

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Louisville

Cheapest flights from Heathrow to LouisvilleExplore the most affordable flight options available from Heathrow to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Explore the most affordable flight options available from Heathrow to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Louisville that are best for you.

Best time to book a flight from Heathrow to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Heathrow with our price prediction graph.

Cheapflights Insights

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

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

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

Find hourly flight availability from Heathrow to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 July 2025.

Reviews of airlines servicing Louisville

Read reviews from past customers who have flown with Delta, KLM, andFinnair from London Heathrow Airport to Louisville. 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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Louisville. 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 into for flights to Louisville from London Heathrow?

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

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

How can I find direct flights from Heathrow to Louisville?

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

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

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.

Alternative routes for Heathrow to Louisville

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Heathrow to Louisville

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 Heathrow to Louisville?

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

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

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

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Cheapest flights from Heathrow to Louisville
Explore the most affordable flight options available from Heathrow to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.