$321+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
Jul 9 — Jul 161
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
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.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 June 9, 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 June 9, 2026.
This Iberia deal was found by Cheapflights users on 6/8. 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 6/8![Iberia logo]()
$866
This FlightHub deal was found by Cheapflights users on 6/5. 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 12/23:24 pm
SDF
- LHR
2 stops25h 16m
Scandinavian Airlines
Mon 12/76:40 am
LHR
- SDF
2 stops20h 55m
Scandinavian Airlines
Deal found 6/5![Scandinavian Airlines logo]()
$875
This Expedia deal was found by Cheapflights users on 6/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:02 pm
SDF
- LHR
1 stop16h 23m
Iberia
Mon 12/711:25 am
LHR
- SDF
2 stops39h 35m
Iberia
Deal found 6/5![Iberia logo]()
$877
This FlightHub deal was found by Cheapflights users on 6/6. 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 9/912:38 pm
SDF
- LHR
1 stop13h 17m
British Airways
Tue 9/226:15 am
LHR
- SDF
2 stops17h 55m
British Airways
Deal found 6/6![British Airways logo]()
$886
This oojo deal was found by Cheapflights users on 6/8. 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 9/144:19 pm
SDF
- LHR
1 stop15h 31m
British Airways
Wed 9/233:00 pm
LHR
- SDF
1 stop13h 22m
British Airways
Deal found 6/8![British Airways logo]()
$892
This Iberia deal was found by Cheapflights users on 6/6. 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.
Mon 9/1410:29 am
SDF
- LHR
1 stop19h 21m
Iberia
Wed 9/236:15 am
LHR
- SDF
2 stops21h 18m
Iberia
Deal found 6/6![Iberia logo]()
$896
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:59 pm
SDF
- LHR
1 stop11h 51m
Finnair
Wed 10/78:55 am
LHR
- SDF
1 stop19h 11m
Finnair
Deal found 6/8![Finnair logo]()
$899
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 June 9, 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 June 9, 2026.
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Mon 9/1411:00 am
SDF
- LHR
2 stops14h 55m
United Airlines
Wed 9/237:30 am
LHR
- SDF
2 stops16h 37m
United Airlines
Deal found 6/6![United Airlines logo]()
$920
This Delta deal was found by Cheapflights users on 6/4. 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 7/2910:00 am
SDF
- LHR
1 stop16h 15m
Delta
Tue 8/116:30 am
LHR
- SDF
2 stops15h 49m
Delta
Deal found 6/4![Delta logo]()
$1,050
This Delta deal was found by Cheapflights users on 6/8. 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 7/295:28 pm
SDF
- LHR
2 stops13h 37m
Delta
Wed 8/58:40 am
LHR
- SDF
2 stops15h 31m
Delta
Deal found 6/8![Delta logo]()
$1,054
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sun 7/51:05 pm
SDF
- LHR
1 stop11h 50m
United Airlines
Sun 7/127:30 am
LHR
- SDF
2 stops17h 53m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,181
This Delta deal was found by Cheapflights users on 6/7. 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 7/711:17 am
SDF
- LHR
2 stops14h 03m
Delta
Wed 7/226:30 am
LHR
- SDF
2 stops16h 19m
Delta
Deal found 6/7![Delta logo]()
$1,101
This United Airlines deal was found by Cheapflights users on 6/5. 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 7/711:44 am
SDF
- LHR
1 stop14h 31m
United Airlines
Sun 7/197:30 am
LHR
- SDF
2 stops17h 53m
United Airlines
Deal found 6/5![United Airlines logo]()
$1,181
This Delta deal was found by Cheapflights users on 6/8. 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 7/276:00 am
SDF
- LHR
1 stop19h 25m
Delta
Sun 8/212:25 pm
LHR
- SDF
1 stop16h 25m
Delta
Deal found 6/8![Delta logo]()
$1,148
Last-minute flights from Louisville to HeathrowDiscover last-minute flight deals from Louisville to Heathrow. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Heathrow. Data last updated June 9, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 6/8. 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 7/85:10 pm
SDF
- LHR
1 stop11h 25m
British Airways
Wed 7/1512:00 pm
LHR
- SDF
1 stop12h 35m
British Airways
Deal found 6/8![British Airways logo]()
$1,073
This Delta deal was found by Cheapflights users on 6/5. 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 7/1912:49 pm
SDF
- LHR
1 stop12h 56m
Delta
Tue 7/283:15 pm
LHR
- SDF
1 stop14h 11m
Delta
Deal found 6/5![Delta logo]()
$1,079
This lol.travel deal was found by Cheapflights users on 6/4. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:10 pm
SDF
- LHR
1 stop12h 05m
Finnair
Wed 8/1210:05 am
LHR
- SDF
1 stop17h 12m
Finnair
Deal found 6/4![Finnair logo]()
$907
This Iberia deal was found by Cheapflights users on 6/4. 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.
Mon 7/2710:36 am
SDF
- LHR
1 stop18h 54m
Iberia
Wed 8/126:15 am
LHR
- SDF
2 stops20h 10m
Iberia
Deal found 6/4![Iberia logo]()
$994
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:49 pm
SDF
- LHR
2 stops16h 56m
KLM
Wed 8/1211:45 am
LHR
- SDF
2 stops17h 39m
KLM
Deal found 6/4![KLM logo]()
$1,011
This Delta deal was found by Cheapflights users on 6/4. 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
2 stops14h 03m
Delta
Wed 8/126:30 am
LHR
- SDF
2 stops15h 30m
Delta
Deal found 6/4![Delta logo]()
$1,017
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 7/297:55 pm
SDF
- LHR
2 stops15h 45m
Lufthansa
Tue 8/117:30 pm
LHR
- SDF
2 stops28h 37m
Lufthansa
Deal found 6/7![Lufthansa logo]()
$1,041
This Delta deal was found by Cheapflights users on 6/4. 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 7/2910:00 am
SDF
- LHR
1 stop16h 15m
Delta
Tue 8/116:30 am
LHR
- SDF
2 stops15h 49m
Delta
Deal found 6/4![Delta logo]()
$1,050
This Delta deal was found by Cheapflights users on 6/7. 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 7/295:28 pm
SDF
- LHR
2 stops13h 37m
Delta
Wed 8/56:30 am
LHR
- SDF
2 stops17h 41m
Delta
Deal found 6/7![Delta logo]()
$1,054
This oojo deal was found by Cheapflights users on 6/4. 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 7/2910:33 am
SDF
- LHR
1 stop18h 57m
British Airways
Tue 8/119:15 am
LHR
- SDF
1 stop13h 44m
British Airways
Deal found 6/4![British Airways logo]()
$1,056
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 June 9, 2026.
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This TravelUp deal was found by Cheapflights users on 6/8. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:59 pm
SDF
- LHR
1 stop13h 16m
British Airways
Deal found 6/8![British Airways logo]()
$321
This oojo deal was found by Cheapflights users on 6/7. 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 10/35:59 pm
SDF
- LHR
1 stop31h 51m
British Airways
Deal found 6/7![British Airways logo]()
$338
This FlightHub deal was found by Cheapflights users on 6/8. 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 9/167:27 pm
SDF
- LHR
1 stop11h 43m
British Airways
Deal found 6/8![British Airways logo]()
$345
This Delta deal was found by Cheapflights users on 6/8. 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 9/162:42 pm
SDF
- LHR
2 stops14h 38m
Delta
Deal found 6/8![Delta logo]()
$348
This Expedia deal was found by Cheapflights users on 6/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:59 pm
SDF
- LHR
2 stops35h 36m
Iberia
Deal found 6/7![Iberia logo]()
$350
This FlightHub deal was found by Cheapflights users on 6/8. 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 9/166:15 am
SDF
- LHR
2 stops19h 15m
Air Canada
Deal found 6/8![Air Canada logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 6/8![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/38:48 pm
SDF
- LHR
3 stops42h 32m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 10/39:11 pm
SDF
- LHR
3 stops39h 29m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$372
This oojo deal was found by Cheapflights users on 6/8. 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.
Thu 9/174:51 pm
SDF
- LHR
1 stop10h 09m
British Airways
Deal found 6/8![British Airways logo]()
$378
This American Airlines deal was found by Cheapflights users on 6/6. 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 6/6![American Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 9/1810:25 am
SDF
- LHR
3 stops41h 55m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$386
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 June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $866 (Iberia) |
One-way from | $321 (TravelUp) |
Popular in | June |
Cheapest in | February |
Average price | $1,319 |
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 June 9, 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
Mon 9/14
11:00 am-6:55 am
2 stops14h 55m
London Heathrow
Wed 9/23
7:30 am-7:07 pm
2 stops16h 37m
$920
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 7/29
10:00 am-7:15 am
1 stop16h 15m
London Heathrow
Tue 8/11
6:30 am-5:19 pm
2 stops15h 49m
$1,050
Quickest round-trip
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 7/29
5:28 pm-12:05 pm
2 stops13h 37m
London Heathrow
Wed 8/5
8:40 am-7:11 pm
2 stops15h 31m
$1,054
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 7/7
11:17 am-6:20 am
2 stops14h 03m
London Heathrow
Wed 7/22
6:30 am-5:49 pm
2 stops16h 19m
$1,101
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 7/27
6:00 am-6:25 am
1 stop19h 25m
London Heathrow
Sun 8/2
12:25 pm-11:50 pm
1 stop16h 25m
$1,148
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Sun 7/5
1:05 pm-5:55 am
1 stop11h 50m
London Heathrow
Sun 7/12
7:30 am-8:23 pm
2 stops17h 53m
$1,181
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 7/7
11:44 am-7:15 am
1 stop14h 31m
London Heathrow
Sun 7/19
7:30 am-8:23 pm
2 stops17h 53m
$1,181
Cheapest one-way
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 10/13
1:37 pm-10:25 am
1 stop15h 48m
$348
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 10/12
2:15 pm-7:10 am
1 stop11h 55m
$348
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Sat 10/3
9:11 pm-5:40 pm
3 stops39h 29m
$372
Showing 1-10 of 18 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 June.
| 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
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 $630). Flying from Louisville to London Heathrow Airport in June is currently the most expensive (average of $1,345). 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 June 9, 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.
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Crew
8.5
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
Wembley
Harrow
Eastleigh
Dartford
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Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
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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 June 9, 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$982 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$655 | Average$999 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$678 | Average$1,091 | FlexibilityNo cancel fee | On-time69% |