$341+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
May 17 — May 241
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Louisville to Heathrow
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Best
Last-minute
One-way
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 April 17, 2026.
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 April 17, 2026.
This FlightHub deal was found by Cheapflights users on 4/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:24 pm
SDF
- LHR
2 stops21h 16m
Scandinavian Airlines
Thu 10/16:40 am
LHR
- SDF
2 stops20h 56m
Scandinavian Airlines
Deal found 4/13![Scandinavian Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 9/295:35 am
SDF
- LHR
2 stops23h 25m
United Airlines
Thu 10/17:25 am
LHR
- SDF
2 stops16h 44m
United Airlines
Deal found 4/13![United Airlines logo]()
$843
This Iberia deal was found by Cheapflights users on 4/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:07 pm
SDF
- LHR
1 stop12h 08m
Iberia
Tue 9/226:15 am
LHR
- SDF
2 stops21h 43m
Iberia
Deal found 4/13![Iberia logo]()
$866
This FlightHub deal was found by Cheapflights users on 4/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:07 pm
SDF
- LHR
1 stop11h 08m
British Airways
Tue 9/226:15 am
LHR
- SDF
2 stops22h 52m
British Airways
Deal found 4/12![British Airways logo]()
$888
This Justfly.com deal was found by Cheapflights users on 4/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:07 pm
SDF
- LHR
1 stop11h 08m
Multiple Airlines
Wed 9/237:30 pm
LHR
- SDF
2 stops26h 39m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$892
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:49 am
SDF
- LHR
1 stop21h 11m
Multiple Airlines
Mon 9/77:25 pm
LHR
- SDF
2 stops32h 36m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$893
This oojo deal was found by Cheapflights users on 4/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:43 pm
SDF
- LHR
1 stop11h 07m
British Airways
Tue 8/259:15 am
LHR
- SDF
1 stop13h 44m
British Airways
Deal found 4/13![British Airways logo]()
$894
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:36 pm
SDF
- LHR
1 stop11h 19m
Multiple Airlines
Tue 8/257:50 am
LHR
- SDF
2 stops18h 41m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$895
Best flights from Louisville to HeathrowDiscover 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 April 17, 2026.
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 April 17, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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.
Wed 9/912:53 pm
SDF
- LHR
2 stops16h 27m
Delta
Tue 9/229:55 am
LHR
- SDF
2 stops15h 57m
Delta
Deal found 4/15![Delta logo]()
$910
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 9/1511:13 am
SDF
- LHR
2 stops14h 17m
United Airlines
Wed 9/236:50 am
LHR
- SDF
2 stops17h 06m
United Airlines
Deal found 4/12![United Airlines logo]()
$968
This Scandinavian Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 9/21:00 pm
SDF
- LHR
3 stops22h 25m
Scandinavian Airlines
Mon 9/77:05 am
LHR
- SDF
3 stops20h 31m
Scandinavian Airlines
Deal found 4/14![Scandinavian Airlines logo]()
$1,129
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 5/69:38 am
SDF
- LHR
1 stop15h 47m
Delta
Wed 5/139:55 am
LHR
- SDF
2 stops16h 23m
Delta
Deal found 4/16![Delta logo]()
$1,052
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 5/206:17 am
SDF
- LHR
1 stop10h 08m
United Airlines
Wed 5/276:50 am
LHR
- SDF
2 stops14h 59m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,058
This Delta deal was found by Cheapflights users on 4/15. 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 5/177:49 pm
SDF
- LHR
1 stop12h 16m
Delta
Tue 6/26:30 am
LHR
- SDF
2 stops15h 42m
Delta
Deal found 4/15![Delta logo]()
$1,059
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Wed 5/206:17 am
SDF
- LHR
1 stop10h 08m
United Airlines
Fri 6/193:20 pm
LHR
- SDF
1 stop12h 30m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,087
This United Airlines deal was found by Cheapflights users on 4/12. 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 5/96:17 am
SDF
- LHR
1 stop10h 08m
United Airlines
Wed 5/134:40 pm
LHR
- SDF
1 stop12h 19m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,129
Last-minute flights from Louisville to HeathrowDiscover last-minute flight deals from Louisville to Heathrow. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Heathrow. Data last updated April 17, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 4/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:16 am
SDF
- LHR
1 stop18h 14m
Iberia
Wed 5/276:15 am
LHR
- SDF
2 stops21h 04m
Iberia
Deal found 4/15![Iberia logo]()
$1,044
This Iberia deal was found by Cheapflights users on 4/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:11 pm
SDF
- LHR
1 stop14h 29m
Iberia
Wed 5/137:50 am
LHR
- SDF
2 stops18h 40m
Iberia
Deal found 4/14![Iberia logo]()
$1,022
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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.
Wed 5/67:40 pm
SDF
- LHR
2 stops16h 00m
Lufthansa
Wed 5/1310:50 am
LHR
- SDF
2 stops18h 09m
Lufthansa
Deal found 4/13![Lufthansa logo]()
$1,047
This Finnair deal was found by Cheapflights users on 4/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:01 pm
SDF
- LHR
1 stop12h 14m
Finnair
Tue 5/2611:10 am
LHR
- SDF
1 stop16h 09m
Finnair
Deal found 4/13![Finnair logo]()
$982
This The Travel House deal was found by Cheapflights users on 4/12. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:06 am
SDF
- LHR
2 stops18h 54m
Air Canada
Tue 5/1910:50 am
LHR
- SDF
2 stops18h 06m
Air Canada
Deal found 4/12![Air Canada logo]()
$936
This oojo deal was found by Cheapflights users on 4/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:35 pm
SDF
- LHR
1 stop12h 00m
British Airways
Tue 5/193:15 pm
LHR
- SDF
1 stop14h 08m
British Airways
Deal found 4/12![British Airways logo]()
$947
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 5/122:00 pm
SDF
- LHR
1 stop14h 00m
United Airlines
Tue 5/196:50 am
LHR
- SDF
2 stops15h 10m
United Airlines
Deal found 4/12![United Airlines logo]()
$964
This oojo deal was found by Cheapflights users on 4/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:35 pm
SDF
- LHR
1 stop10h 25m
British Airways
Sun 5/249:15 am
LHR
- SDF
1 stop12h 57m
British Airways
Deal found 4/14![British Airways logo]()
$1,043
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 5/173:25 pm
SDF
- LHR
1 stop10h 40m
American Airlines
Tue 6/211:10 am
LHR
- SDF
1 stop12h 16m
American Airlines
Deal found 4/16![American Airlines logo]()
$1,009
This oojo deal was found by Cheapflights users on 4/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:35 pm
SDF
- LHR
1 stop10h 25m
British Airways
Thu 5/283:15 pm
LHR
- SDF
1 stop12h 04m
British Airways
Deal found 4/13![British Airways logo]()
$1,010
One-way flights from Louisville to HeathrowSearch for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This oojo deal was found by Cheapflights users on 4/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:05 pm
SDF
- LHR
1 stop30h 15m
British Airways
Deal found 4/13![British Airways logo]()
$341
This United Airlines deal was found by Cheapflights users on 4/13. 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 9/51:48 pm
SDF
- LHR
2 stops39h 12m
United Airlines
Deal found 4/13![United Airlines logo]()
$394
This Justfly.com deal was found by Cheapflights users on 4/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:16 am
SDF
- LHR
2 stops22h 44m
Aer Lingus
Deal found 4/12![Aer Lingus logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:48 pm
SDF
- LHR
3 stops59h 07m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:06 pm
SDF
- LHR
3 stops40h 39m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:33 am
SDF
- LHR
3 stops50h 47m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:13 pm
SDF
- LHR
3 stops35h 52m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$531
This Ovago deal was found by Cheapflights users on 4/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:16 am
SDF
- LHR
2 stops15h 49m
Aer Lingus
Deal found 4/14![Aer Lingus logo]()
$544
This Justfly.com deal was found by Cheapflights users on 4/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2510:47 am
SDF
- LHR
2 stops21h 43m
Aer Lingus
Deal found 4/15![Aer Lingus logo]()
$548
This Justfly.com deal was found by Cheapflights users on 4/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:59 am
SDF
- LHR
2 stops20h 06m
Aer Lingus
Deal found 4/15![Aer Lingus logo]()
$555
Find 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 April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $825 (FlightHub) |
One-way from | $341 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $1,109 |
Cheapflights Fare Finder
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 April 17, 2026.
Use the filters below to find and compare flights from Louisville to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 9/9
12:53 pm-10:20 am
2 stops16h 27m
London Heathrow
Tue 9/22
9:55 am-8:52 pm
2 stops15h 57m
$910
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 9/15
11:13 am-6:30 am
2 stops14h 17m
London Heathrow
Wed 9/23
6:50 am-6:56 pm
2 stops17h 06m
$968
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 5/6
9:38 am-6:25 am
1 stop15h 47m
London Heathrow
Wed 5/13
9:55 am-9:18 pm
2 stops16h 23m
$1,052
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 5/20
6:17 am-9:25 pm
1 stop10h 08m
London Heathrow
Wed 5/27
6:50 am-4:49 pm
2 stops14h 59m
$1,058
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Sun 5/17
7:49 pm-1:05 pm
1 stop12h 16m
London Heathrow
Tue 6/2
6:30 am-5:12 pm
2 stops15h 42m
$1,059
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 5/20
6:17 am-9:25 pm
1 stop10h 08m
London Heathrow
Fri 6/19
3:20 pm-10:50 pm
1 stop12h 30m
$1,087
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 9/2
1:00 pm-4:25 pm
3 stops22h 25m
London Heathrow
Mon 9/7
7:05 am-10:36 pm
3 stops20h 31m
$1,129
Quickest round-trip
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Sat 5/9
6:17 am-9:25 pm
1 stop10h 08m
London Heathrow
Wed 5/13
4:40 pm-11:59 pm
1 stop12h 19m
$1,129
Cheapest one-way
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Sat 9/5
1:48 pm-10:00 am
2 stops39h 12m
$394
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 5/25
10:47 am-1:30 pm
2 stops21h 43m
$550
Showing 1-10 of 19 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
SDF-LHR
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.
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 round-trip flight from Louisville to Heathrow. Price data was last updated on April 10, 2026.
To ensure you get the cheapest price possible for a flight from Louisville to London Heathrow Airport, you should look to book at least 69 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, February is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of $619). Flying from Louisville to London Heathrow Airport in June is currently the most expensive (average of $1,298). 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.
How much does it cost to fly round-trip from Louisville to London Heathrow Airport?
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 April 17, 2026.
See what other customers who have flown with Delta,Virgin Atlantic, andUnited Airlines from Louisville to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$577 | Average$799 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$588 | Average$859 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$930 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$676 | Average$1,107 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$678 | Average$975 | FlexibilityNo cancel fee | On-time69% |