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$375+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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The best prices from Louisville Intl to London Heathrow are usually found in February or September, booked 64 days in advance, depart on a Wednesday or Monday 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 December 22, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$688
(ResecentrumGruppen)

One-way from

$375
(Gurufare)

Popular in

July

Cheapest in

February

Average price

$1,104
Provider with most accurate pricing for Louisville Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-London Heathrow flights.
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From Louisville Intl to London Heathrow
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One-way flight from Louisville Intl to London Heathrow
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High demand for flights, 10% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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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 December 22, 2024.

This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/288:34 amSDF - LHR
1 stop21h 41mUnited Airlines
Sat 1/46:00 pmLHR - SDF
2 stops24h 11mUnited Airlines
Deal found 12/21$1,810
This KAYAK deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/227:02 pmSDF - LHR
1 stop32h 13mBritish Airways
Tue 12/3111:55 amLHR - SDF
1 stop13h 10mBritish Airways
Deal found 12/21$1,945
This Gurufare deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2511:16 amSDF - LHR
1 stop15h 59mIberia
Wed 1/111:55 amLHR - SDF
1 stop13h 10mIberia
Deal found 12/20$1,954
This Gotogate deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:02 amSDF - LHR
2 stops17h 28mMultiple Airlines
Thu 12/267:30 amLHR - SDF
2 stops18h 22mMultiple Airlines
Deal found 12/20$1,975
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:29 pmSDF - LHR
1 stop11h 06mDelta
Tue 12/3111:45 amLHR - SDF
2 stops15h 42mDelta
Deal found 12/21$2,324
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/236:25 pmSDF - LHR
1 stop9h 55mAmerican Airlines
Thu 1/210:15 amLHR - SDF
1 stop12h 45mAmerican Airlines
Deal found 12/21$2,478
This Virgin Atlantic deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/284:36 pmSDF - LHR
1 stop12h 59mVirgin Atlantic
Sat 1/42:30 pmLHR - SDF
1 stop14h 27mVirgin Atlantic
Deal found 12/21$2,489
This Scandinavian Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/234:36 pmSDF - LHR
2 stops20h 04mScandinavian Airlines
Thu 1/29:05 pmLHR - SDF
3 stops29h 31mScandinavian Airlines
Deal found 12/21$2,564
This business-class.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:00 pmSDF - LHR
1 stop12h 15mLufthansa
Sun 12/2910:25 amLHR - SDF
1 stop16h 51mLufthansa
Deal found 12/21$8,121
This WestJet deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/284:33 pmSDF - LHR
2 stops39h 17mWestJet
Thu 1/22:50 pmLHR - SDF
2 stops31h 54mWestJet
Deal found 12/20$9,216
This Cheapflightsfares deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:37 amSDF - LHR
2 stops22h 38mAer Lingus
Sun 12/299:50 amLHR - SDF
2 stops16h 36mAer Lingus
Deal found 12/21$9,248

Find flights from Louisville to Heathrow within your budget

Customize 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 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 2/9

2:43 pm-4:00 pm

2 stops20h 17m

London Heathrow

Tue 2/25

5:00 pm-11:58 pm

2 stops35h 58m

$688

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 2/9

6:45 pm-11:40 am

1 stop11h 55m

London Heathrow

Tue 2/25

11:00 am-8:14 pm

1 stop14h 14m

$753

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/19

4:55 pm-9:30 am

1 stop11h 35m

London Heathrow

Fri 2/28

1:10 pm-9:46 pm

1 stop13h 36m

$765

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 1/17

2:30 pm-6:40 am

1 stop11h 10m

London Heathrow

Fri 1/24

3:00 pm-2:00 pm

2 stops28h 00m

$803

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 5/6

7:02 am-6:30 am

2 stops18h 28m

London Heathrow

Thu 5/22

5:40 pm-4:49 pm

2 stops28h 09m

$827

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/20

4:45 pm-11:10 am

1 stop13h 25m

London Heathrow

Sun 5/4

1:30 pm-10:32 pm

1 stop14h 02m

$833

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 5/6

2:59 pm-6:25 am

1 stop10h 26m

London Heathrow

Thu 5/22

9:00 am-9:38 pm

2 stops17h 38m

$834

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 5/6

3:59 pm-7:30 am

1 stop10h 31m

London Heathrow

Thu 5/22

1:10 pm-8:45 pm

1 stop12h 35m

$842

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/20

11:04 am-7:15 am

2 stops15h 11m

London Heathrow

Sun 5/4

9:30 am-9:33 pm

2 stops17h 03m

$851

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 2/7

1:25 pm-6:50 am

1 stop12h 25m

London Heathrow

Sat 2/15

2:30 pm-11:58 pm

1 stop14h 28m

$873

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 21 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Heathrow. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from Louisville to London Heathrow Airport, you should look to book at least 64 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 $1,135). 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 December 22, 2024.

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?

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.

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

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

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

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 December 22, 2024.
Peruse reviews from past customers who have flown with Virgin Atlantic, Lufthansa and United Airlines 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
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,597 reviews
Delta
8.0
Very good
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,342 reviews
Delta
8.0
Very good
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
668 reviews
Delta
8.0
Very good
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
9,035 reviews
Delta
8.0
Very good
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Scandinavian Airlines
7.3
Good
1,314 reviews
Delta
8.0
Very good
8,597 reviews

Entertainment

7.9

Crew

8.6

Comfort

8.0

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

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?

    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 $688. Other airlines that can offer you cheap pricing are British Airways, from $753, and United Airlines, from $803. You may be able to fly from Louisville to London Heathrow Airport for 26% 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?

    $375 is the cheapest one-way deal found within the past few days, from Scandinavian Airlines. You may also be able to find cheap deals on WestJet and KLM, with prices starting from $407 and $477, respectively.

  • 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 $1,135). 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

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Top 5 airlines flying from Louisville to Heathrow

Discover the top 5 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 2,558,603 searches. Data last updated December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$601Average$948FlexibilityNo cancel feeOn-time72%
DeltaCheapest$661Average$927FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$669Average$934FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$674Average$1,025FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$716Average$1,039FlexibilityNo cancel feeOn-time69%
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