$325+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
Jun 26 — Jul 31
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Heathrow with Cheapflights
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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
Cheapest
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 May 27, 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 May 27, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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.
Fri 11/61:00 pm
SDF
- LHR
2 stops24h 30m
Scandinavian Airlines
Sun 11/156:40 am
LHR
- SDF
2 stops19h 11m
Scandinavian Airlines
Deal found 5/26![Scandinavian Airlines logo]()
$850
This Iberia deal was found by Cheapflights users on 5/26. 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 9/96:01 pm
SDF
- LHR
1 stop13h 14m
Iberia
Tue 9/226:15 am
LHR
- SDF
2 stops21h 18m
Iberia
Deal found 5/26![Iberia logo]()
$866
This Iberia deal was found by Cheapflights users on 5/23. 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.
Tue 11/105:20 pm
SDF
- LHR
2 stops18h 15m
Iberia
Fri 11/2011:25 am
LHR
- SDF
2 stops16h 34m
Iberia
Deal found 5/23![Iberia logo]()
$874
This FlightHub deal was found by Cheapflights users on 5/26. 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.
Tue 11/101:00 pm
SDF
- LHR
2 stops22h 00m
Scandinavian Airlines
Fri 11/206:40 am
LHR
- SDF
2 stops20h 55m
Scandinavian Airlines
Deal found 5/26![Scandinavian Airlines logo]()
$875
This FlightHub deal was found by Cheapflights users on 5/25. 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 9/227:50 am
LHR
- SDF
2 stops20h 08m
British Airways
Deal found 5/25![British Airways logo]()
$886
This FlightHub deal was found by Cheapflights users on 5/25. 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 9/1410:31 am
SDF
- LHR
1 stop19h 19m
Multiple Airlines
Mon 9/287:25 pm
LHR
- SDF
2 stops26h 44m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$890
This oojo deal was found by Cheapflights users on 5/24. 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 8/265:08 pm
SDF
- LHR
1 stop9h 52m
British Airways
Wed 9/23:00 pm
LHR
- SDF
1 stop13h 17m
British Airways
Deal found 5/24![British Airways logo]()
$891
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 May 27, 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 May 27, 2026.
This Delta deal was found by Cheapflights users on 5/22. 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 8/2612:54 pm
SDF
- LHR
1 stop12h 51m
Delta
Wed 9/29:55 am
LHR
- SDF
2 stops15h 57m
Delta
Deal found 5/22![Delta logo]()
$904
This Scandinavian Airlines deal was found by Cheapflights users on 5/23. 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.
Tue 11/101:00 pm
SDF
- LHR
3 stops24h 50m
Scandinavian Airlines
Fri 11/207:05 am
LHR
- SDF
3 stops20h 30m
Scandinavian Airlines
Deal found 5/23![Scandinavian Airlines logo]()
$1,008
This United Airlines deal was found by Cheapflights users on 5/25. 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 7/216:30 am
SDF
- LHR
1 stop9h 55m
United Airlines
Tue 7/2811:05 am
LHR
- SDF
1 stop12h 51m
United Airlines
Deal found 5/25![United Airlines logo]()
$1,078
This Delta deal was found by Cheapflights users on 5/27. 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 8/58:05 am
SDF
- LHR
1 stop18h 10m
Delta
Thu 8/206:30 am
LHR
- SDF
2 stops15h 30m
Delta
Deal found 5/27![Delta logo]()
$965
This Delta deal was found by Cheapflights users on 5/27. 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 7/297:50 am
SDF
- LHR
1 stop18h 20m
Delta
Tue 8/119:55 am
LHR
- SDF
2 stops16h 38m
Delta
Deal found 5/27![Delta logo]()
$1,050
This Scandinavian Airlines deal was found by Cheapflights users on 5/24. 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 8/1212:54 pm
SDF
- LHR
3 stops24h 56m
Scandinavian Airlines
Sun 8/166:40 am
LHR
- SDF
3 stops22h 54m
Scandinavian Airlines
Deal found 5/24![Scandinavian Airlines logo]()
$1,186
This Delta deal was found by Cheapflights users on 5/22. 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.
Mon 7/2711:17 am
SDF
- LHR
1 stop14h 08m
Delta
Sun 8/26:55 pm
LHR
- SDF
1 stop22h 17m
Delta
Deal found 5/22![Delta logo]()
$1,159
Last-minute flights from Louisville to HeathrowDiscover last-minute flight deals from Louisville to Heathrow. Data last updated May 27, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Heathrow. Data last updated May 27, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/26. 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.
Tue 6/22:10 pm
SDF
- LHR
1 stop16h 45m
Lufthansa
Wed 6/109:30 am
LHR
- SDF
2 stops14h 48m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$1,243
This Delta deal was found by Cheapflights users on 5/23. 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.
Tue 6/211:12 am
SDF
- LHR
2 stops14h 08m
Delta
Wed 6/106:30 am
LHR
- SDF
2 stops15h 16m
Delta
Deal found 5/23![Delta logo]()
$1,268
This Justfly.com deal was found by Cheapflights users on 5/26. 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 6/22:10 pm
SDF
- LHR
2 stops14h 50m
Air Canada
Wed 6/102:05 pm
LHR
- SDF
2 stops34h 13m
Air Canada
Deal found 5/26![Air Canada logo]()
$1,276
This United Airlines deal was found by Cheapflights users on 5/23. 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 6/311:14 am
SDF
- LHR
2 stops14h 16m
United Airlines
Wed 6/107:25 am
LHR
- SDF
2 stops16h 35m
United Airlines
Deal found 5/23![United Airlines logo]()
$1,267
This Cheapflightsfares deal was found by Cheapflights users on 5/23. 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.
Mon 6/810:00 am
SDF
- LHR
2 stops16h 40m
Lufthansa
Tue 6/169:30 am
LHR
- SDF
2 stops14h 48m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$1,265
This Mytrip deal was found by Cheapflights users on 5/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:27 pm
SDF
- LHR
2 stops24h 53m
Multiple Airlines
Sat 6/136:45 pm
LHR
- SDF
3 stops31h 30m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,256
This Travelocity deal was found by Cheapflights users on 5/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:55 pm
SDF
- LHR
2 stops53h 35m
Multiple Airlines
Tue 9/299:30 am
LHR
- SDF
2 stops14h 39m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$1,169
This Cheapflightsfares deal was found by Cheapflights users on 5/24. 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.
Fri 6/2610:05 am
SDF
- LHR
1 stop15h 50m
Lufthansa
Tue 9/297:45 am
LHR
- SDF
1 stop21h 09m
Lufthansa
Deal found 5/24![Lufthansa logo]()
$1,216
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 May 27, 2026.
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 27, 2026.
This oojo deal was found by Cheapflights users on 5/24. 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 9/811:04 am
SDF
- LHR
1 stop17h 01m
British Airways
Deal found 5/24![British Airways logo]()
$325
This oojo deal was found by Cheapflights users on 5/26. 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 10/105:00 pm
SDF
- LHR
1 stop20h 55m
British Airways
Deal found 5/26![British Airways logo]()
$326
This oojo deal was found by Cheapflights users on 5/25. 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 8/317:12 pm
SDF
- LHR
1 stop30h 43m
British Airways
Deal found 5/25![British Airways logo]()
$337
This United Airlines deal was found by Cheapflights users on 5/24. 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 9/89:00 am
SDF
- LHR
2 stops17h 15m
United Airlines
Deal found 5/24![United Airlines logo]()
$348
This Air Canada deal was found by Cheapflights users on 5/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:00 am
SDF
- LHR
3 stops16h 30m
Air Canada
Deal found 5/24![Air Canada logo]()
$360
This Travelocity deal was found by Cheapflights users on 5/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:45 pm
SDF
- LHR
2 stops31h 45m
Air Canada
Deal found 5/25![Air Canada logo]()
$363
This oojo deal was found by Cheapflights users on 5/25. 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.
Fri 9/253:54 pm
SDF
- LHR
1 stop12h 31m
British Airways
Deal found 5/25![British Airways logo]()
$376
This oojo deal was found by Cheapflights users on 5/23. 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.
Fri 9/47:08 pm
SDF
- LHR
1 stop10h 22m
British Airways
Deal found 5/23![British Airways logo]()
$377
This American Airlines deal was found by Cheapflights users on 5/26. 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.
Fri 9/44:34 pm
SDF
- LHR
1 stop12h 01m
American Airlines
Deal found 5/26![American Airlines logo]()
$381
This Iberia deal was found by Cheapflights users on 5/25. 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.
Fri 9/2510:31 am
SDF
- LHR
2 stops20h 29m
Iberia
Deal found 5/25![Iberia logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 5/25. 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.
Fri 9/2510:25 am
SDF
- LHR
3 stops41h 55m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Fri 9/49:00 am
SDF
- LHR
2 stops16h 55m
United Airlines
Deal found 5/24![United Airlines logo]()
$398
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 May 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $850 (Cheapflightsfares) |
One-way from | $325 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $1,172 |
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 May 27, 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 8/26
12:54 pm-6:45 am
1 stop12h 51m
London Heathrow
Wed 9/2
9:55 am-8:52 pm
2 stops15h 57m
$904
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 8/5
8:05 am-7:15 am
1 stop18h 10m
London Heathrow
Thu 8/20
6:30 am-5:00 pm
2 stops15h 30m
$965
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 11/10
1:00 pm-6:50 pm
3 stops24h 50m
London Heathrow
Fri 11/20
7:05 am-10:35 pm
3 stops20h 30m
$1,008
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 7/29
7:50 am-7:10 am
1 stop18h 20m
London Heathrow
Tue 8/11
9:55 am-9:33 pm
2 stops16h 38m
$1,050
Quickest round-trip
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 7/21
6:30 am-9:25 pm
1 stop9h 55m
London Heathrow
Tue 7/28
11:05 am-6:56 pm
1 stop12h 51m
$1,078
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 7/27
11:17 am-6:25 am
1 stop14h 08m
London Heathrow
Sun 8/2
6:55 pm-12:12 pm
1 stop22h 17m
$1,159
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 8/12
12:54 pm-6:50 pm
3 stops24h 56m
London Heathrow
Sun 8/16
6:40 am-12:34 am
3 stops22h 54m
$1,186
Cheapest one-way
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 8/31
7:12 pm-6:55 am
1 stop30h 43m
$337
Quickest one-way
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Fri 9/4
7:08 pm-10:30 am
1 stop10h 22m
$377
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Fri 9/4
4:34 pm-9:35 am
1 stop12h 01m
$381
Showing 1-10 of 17 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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 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?
To ensure you get the cheapest price possible for a flight from Louisville to London Heathrow Airport, you should look to book at least 68 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 $1,310). 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 May 27, 2026.
See what other customers who have flown with Delta,KLM, 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.
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
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Alternative routes for Louisville to Heathrow
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Search flights from Louisville to Heathrow by cabin class
Find flights from Louisville to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 27, 2026.
Louisville and Heathrow flights
Browse other Louisville and Heathrow flight options. Last updated on May 27, 2026.
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Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on May 27, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Louisville to Heathrow
Discover the top 6 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 May 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$574 | Average$716 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$577 | Average$774 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$588 | Average$859 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$948 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$676 | Average$1,066 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$678 | Average$975 | FlexibilityNo cancel fee | On-time69% |