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 $662. Other airlines that can offer you cheap pricing are United Airlines, from $680, and British Airways, from $694. You may be able to fly from Louisville to London Heathrow Airport for 30% less than the average price by searching for these airlines.

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

Consider American Airlines, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from Louisville to London Heathrow Airport.

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

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

October can be a great time to fly to London Heathrow Airport from Louisville with a flight ticket averaging about $975. Cheapflights users have found deals in the month of October for as cheap as $598. The most expensive prices can be found in the month of July.

Most accurate provider : When it comes to deals on Louisville-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Louisville-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

If you book a flight to London Heathrow from Louisville, you will be flying from Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville. There are 0 flights from Louisville Intl to London Heathrow per day from 5 different airlines.

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 vacation 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.

$397+ Flights from Louisville to London Heathrow Airport

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

To save up to 92% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Louisville to London Heathrow Airport from $875 1-2 weeks out and tickets from $1,196 for flights departing within the next 72 hours.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Louisville to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Louisville Intl to London Heathrow are usually found in February or March, booked 40 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to Heathrow

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$662 (CrystalTravel)
One-way from	$397 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$772

Provider with most accurate pricing for Louisville Intl-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for Louisville Intl-London Heathrow flights.

Search Deals

From Louisville Intl to London Heathrow

Search Deals

One-way flight from Louisville Intl to London Heathrow

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($98 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from Louisville to Heathrow

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 February 22, 2025.

Sun 4/2012:55 pmSDF - LHR

1 stop12h 50mVirgin Atlantic

Thu 5/83:15 pmLHR - SDF

1 stop12h 17mVirgin Atlantic

Deal found 2/21

$662

Wed 4/210:06 amSDF - LHR

2 stops15h 29mMultiple Airlines

Tue 4/89:30 amLHR - SDF

2 stops17h 38mMultiple Airlines

Deal found 2/21

$668

Wed 4/23:25 pmSDF - LHR

1 stop15h 10mUnited Airlines

Tue 4/82:05 pmLHR - SDF

2 stops28h 58mUnited Airlines

Deal found 2/21

$680

Sat 9/208:43 pmSDF - LHR

1 stop29h 42mBritish Airways

Thu 10/211:30 amLHR - SDF

2 stops16h 15mBritish Airways

Deal found 2/21

$687

Sun 4/207:29 amSDF - LHR

2 stops23h 21mAir Canada

Thu 5/89:30 amLHR - SDF

2 stops58h 00mAir Canada

Deal found 2/21

$700

Tue 3/412:46 pmSDF - LHR

1 stop16h 49mDelta

Tue 3/116:30 amLHR - SDF

2 stops19h 05mDelta

Deal found 2/21

$724

Tue 3/42:43 pmSDF - LHR

1 stop12h 12mKLM

Tue 3/1112:30 pmLHR - SDF

1 stop13h 00mKLM

Deal found 2/21

$745

Sat 3/85:00 pmSDF - LHR

2 stops18h 00mScandinavian Airlines

Tue 3/117:30 pmLHR - SDF

2 stops32h 27mScandinavian Airlines

Deal found 2/20

$1,004

Sun 3/21:31 pmSDF - LHR

1 stop13h 24mLufthansa

Sat 3/87:30 pmLHR - SDF

2 stops31h 59mLufthansa

Deal found 2/21

$1,028

Sun 3/91:07 pmSDF - LHR

1 stop14h 48mAir France

Tue 3/112:30 pmLHR - SDF

1 stop13h 27mAir France

Deal found 2/20

$1,675

Best flights from Louisville to Heathrow
Discover carefully curated flight deals from Louisville to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 22, 2025.

Sun 4/2012:55 pmSDF - LHR

1 stop12h 50mVirgin Atlantic

Thu 5/83:15 pmLHR - SDF

1 stop12h 17mVirgin Atlantic

Deal found 2/21

$662

Wed 4/210:06 amSDF - LHR

2 stops15h 29mMultiple Airlines

Tue 4/89:30 amLHR - SDF

2 stops17h 38mMultiple Airlines

Deal found 2/21

$668

Wed 4/23:25 pmSDF - LHR

1 stop15h 10mUnited Airlines

Tue 4/82:05 pmLHR - SDF

2 stops28h 58mUnited Airlines

Deal found 2/21

$680

Sat 3/226:32 pmSDF - LHR

1 stop32h 48mBritish Airways

Mon 5/57:25 pmLHR - SDF

2 stops30h 38mBritish Airways

Deal found 2/21

$694

Sun 4/207:29 amSDF - LHR

2 stops23h 21mAir Canada

Thu 5/89:30 amLHR - SDF

2 stops58h 00mAir Canada

Deal found 2/21

$700

Tue 3/412:46 pmSDF - LHR

1 stop16h 49mDelta

Tue 3/116:30 amLHR - SDF

2 stops19h 05mDelta

Deal found 2/21

$724

Tue 3/42:43 pmSDF - LHR

1 stop12h 12mKLM

Tue 3/1112:30 pmLHR - SDF

1 stop13h 00mKLM

Deal found 2/21

$745

Tue 3/252:05 pmSDF - LHR

3 stops22h 20mScandinavian Airlines

Mon 3/317:05 amLHR - SDF

3 stops21h 54mScandinavian Airlines

Deal found 2/21

$846

Sat 7/196:00 pmSDF - LHR

1 stop31h 20mLufthansa

Sat 7/267:30 pmLHR - SDF

2 stops26h 19mLufthansa

Deal found 2/21

$1,286

Sun 3/91:07 pmSDF - LHR

1 stop14h 48mAir France

Tue 3/112:30 pmLHR - SDF

1 stop13h 27mAir France

Deal found 2/20

$1,675

Last-minute flights from Louisville to Heathrow
Discover last-minute flight deals from Louisville to Heathrow. Data last updated February 22, 2025 and is based on user searches.

Fri 2/2811:21 amSDF - LHR

2 stops19h 29mMultiple Airlines

Fri 3/79:30 amLHR - SDF

2 stops18h 59mMultiple Airlines

Deal found 2/20

$782

Fri 2/286:50 amSDF - LHR

1 stop19h 15mVirgin Atlantic

Fri 3/711:45 amLHR - SDF

2 stops17h 13mVirgin Atlantic

Deal found 2/20

$784

Sat 3/16:45 pmSDF - LHR

1 stop31h 05mBritish Airways

Fri 3/711:55 amLHR - SDF

1 stop11h 48mBritish Airways

Deal found 2/20

$1,808

Sun 3/21:31 pmSDF - LHR

1 stop13h 24mLufthansa

Sat 3/87:30 pmLHR - SDF

2 stops31h 59mLufthansa

Deal found 2/21

$1,028

Tue 3/412:46 pmSDF - LHR

1 stop16h 49mDelta

Tue 3/116:30 amLHR - SDF

2 stops19h 05mDelta

Deal found 2/21

$724

Tue 3/42:43 pmSDF - LHR

1 stop12h 12mKLM

Tue 3/1112:30 pmLHR - SDF

1 stop13h 00mKLM

Deal found 2/21

$745

Fri 3/710:15 amSDF - LHR

2 stops15h 15mAir Canada

Tue 3/113:00 pmLHR - SDF

2 stops27h 43mAir Canada

Deal found 2/20

$1,331

Sat 3/85:00 pmSDF - LHR

2 stops18h 00mScandinavian Airlines

Tue 3/117:30 pmLHR - SDF

2 stops32h 27mScandinavian Airlines

Deal found 2/20

$1,004

Sun 3/91:07 pmSDF - LHR

1 stop14h 48mAir France

Tue 3/112:30 pmLHR - SDF

1 stop13h 27mAir France

Deal found 2/20

$1,675

Wed 3/122:15 pmSDF - LHR

1 stop14h 10mMultiple Airlines

Mon 3/177:30 pmLHR - SDF

2 stops31h 59mMultiple Airlines

Deal found 2/20

$703

Sat 3/226:32 pmSDF - LHR

1 stop32h 48mBritish Airways

Mon 5/57:25 pmLHR - SDF

2 stops30h 38mBritish Airways

Deal found 2/21

$694

Sat 3/225:45 pmSDF - LHR

2 stops33h 25mUnited Airlines

Mon 5/51:30 pmLHR - SDF

2 stops37h 08mUnited Airlines

Deal found 2/21

$711

One-way flights from Louisville to Heathrow
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated February 22, 2025.

Sat 3/16:00 amSDF - LHR

2 stops22h 05mMultiple Airlines

Deal found 2/20

$397

Sat 3/11:58 pmSDF - LHR

2 stops36h 12mUnited Airlines

Deal found 2/20

$483

Sat 3/15:00 pmSDF - LHR

1 stop32h 20mVirgin Atlantic

Deal found 2/20

$484

Find flights from Louisville to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/20

12:55 pm-6:45 am

1 stop12h 50m

London Heathrow

Thu 5/8

3:15 pm-10:32 pm

1 stop12h 17m

$662

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/2

10:06 am-6:35 am

2 stops15h 29m

London Heathrow

Tue 4/8

9:30 am-10:08 pm

2 stops17h 38m

$668

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/2

3:25 pm-11:35 am

1 stop15h 10m

London Heathrow

Tue 4/8

2:05 pm-2:03 pm

2 stops28h 58m

$680

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 3/22

6:32 pm-7:20 am

1 stop32h 48m

London Heathrow

Mon 5/5

7:25 pm-9:03 pm

2 stops30h 38m

$694

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/20

7:29 am-11:50 am

2 stops23h 21m

London Heathrow

Thu 5/8

9:30 am-2:30 pm

2 stops58h 00m

$700

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/4

12:46 pm-10:35 am

1 stop16h 49m

London Heathrow

Tue 3/11

6:30 am-9:35 pm

2 stops19h 05m

$724

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 3/4

2:43 pm-7:55 am

1 stop12h 12m

London Heathrow

Tue 3/11

12:30 pm-9:30 pm

1 stop13h 00m

$745

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 3/8

5:00 pm-4:00 pm

2 stops18h 00m

London Heathrow

Tue 3/11

7:30 pm-11:57 pm

2 stops32h 27m

$1,004

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 3/2

1:31 pm-7:55 am

1 stop13h 24m

London Heathrow

Sat 3/8

7:30 pm-10:29 pm

2 stops31h 59m

$1,028

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 3/9

1:07 pm-7:55 am

1 stop14h 48m

London Heathrow

Tue 3/11

2:30 pm-11:57 pm

1 stop13h 27m

$1,675

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results

Compare providers for flights from Louisville to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Heathrow in February.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Louisville-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Louisville-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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.

Travel insights for flights from Louisville to Heathrow

Get recent, data-driven insights about flights from Louisville to Heathrow including ideal travel times, pricing trends, and more.

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

To ensure you get the cheapest price possible for a flight from Louisville to London Heathrow Airport, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $661). Flying from Louisville to London Heathrow Airport in June is currently the most expensive (average of $1,136). 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?

A simple way to save on the total cost of your ticket is to fly from Louisville to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

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

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

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Delta, KLM and Virgin Atlantic from Louisville to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,212 reviews

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,330 reviews

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.5

Good

653 reviews

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,448 reviews

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,759 reviews

Delta

8.0

Very good

8,212 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from Louisville to London Heathrow?
If you book a flight to London Heathrow from Louisville, you will be flying from Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville. There are 0 flights from Louisville Intl to London Heathrow per day from 5 different airlines.
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 $662. Other airlines that can offer you cheap pricing are United Airlines, from $680, and British Airways, from $694. You may be able to fly from Louisville to London Heathrow Airport for 30% less than the average price by searching for these airlines.
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 vacation 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 $661). Flying from Louisville to London Heathrow Airport in June is currently the most expensive (average of $1,136). 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

Hounslow

Hayes

Thornton Heath

Harrow

Luton

Wembley

Horley

Canterbury

Northampton

Gatwick

Milton Keynes

Dover

Orpington

Watford

Stratford-upon-Avon

Croydon

Borehamwood

Bromley

Folkestone

Ilford

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Louisville to Heathrow

Other flights to Heathrow

Miami to Heathrow flights

Orlando to Heathrow flights

Newark to Heathrow flights

John F Kennedy Intl to Heathrow flights

Boston to Heathrow flights

O'Hare Intl to Heathrow flights

London Heathrow Airport to Paris Orly Airport flights

London Heathrow Airport to Newcastle upon Tyne flights

London Heathrow Airport to Aberdeen flights

London Heathrow Airport to Glasgow Intl Airport flights

London Heathrow Airport to Inverness flights

London Heathrow Airport to Belfast City Airport flights

London Heathrow Airport to Manchester flights

London Heathrow Airport to Edinburgh flights

London Heathrow Airport to Hamburg flights

London Heathrow Airport to Barcelona-El Prat Airport flights

London Heathrow Airport to Geneva flights

London Heathrow Airport to Luxembourg flights

London Heathrow Airport to Paris Orly Airport flights

London Heathrow Airport to Milan Malpensa Airport flights

London Heathrow Airport to Amsterdam flights

London Heathrow Airport to Shannon, Clare flights

London Heathrow Airport to Brussels Bruxelles-National Airport flights

London Heathrow Airport to Paris Charles de Gaulle Airport flights

Top 5 airlines flying from Louisville to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$653	Average$1,029	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$688	Average$935	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$710	Average$950	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$716	Average$996	FlexibilityNo cancel fee	On-time69%
Virgin Atlantic	Cheapest$735	Average$1,175	FlexibilityNo cancel fee	On-time72%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.

$397+ Cheap flights from Louisville (SDF) to Heathrow (LHR)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Louisville Intl to London Heathrow are usually found in February or March, booked 40 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to Heathrow

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Louisville to Heathrow

Cheapest flights from Louisville to HeathrowExplore 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 February 22, 2025.

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 February 22, 2025.

Find flights from Louisville to Heathrow within your budget

Compare providers for flights from Louisville to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Heathrow in February.

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.

Travel insights for flights from Louisville to Heathrow

Get recent, data-driven insights about flights from Louisville to Heathrow including ideal travel times, pricing trends, and more.

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 round-trip flight from Louisville to Heathrow. Price data was last updated on February 14, 2025.

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

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 February 22, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Louisville to Heathrow. Price data was last updated on December 16, 2024.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

Peruse reviews from past customers who have flown with Delta, KLM and Virgin Atlantic from Louisville to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I find direct flights from Louisville to Heathrow?

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

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

Traveling to a place near 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 Louisville to Heathrow

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

Top 5 airlines flying from Louisville to Heathrow

100% Free

Book with Flexibility

Travel Smart

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 February 22, 2025.