$426+ Cheap flights from Louisville (SDF) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
Oct 29 — Nov 51
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 September 29, 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 September 29, 2026.
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/212:36 pm -
1 stop11h 34m
Mon 11/26:20 am -
2 stops15h 31m
Deal found 9/23![Delta logo]()
$806
This Virgin Atlantic deal was found by Cheapflights users on 9/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:59 pm -
1 stop12h 16m
Mon 11/28:55 am -
1 stop20h 04m
Deal found 9/23![Virgin Atlantic logo]()
$813
This Expedia deal was found by Cheapflights users on 9/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:01 am -
1 stop17h 34m
Wed 12/96:15 am -
2 stops20h 21m
Deal found 9/25![Iberia logo]()
$834
This Iberia deal was found by Cheapflights users on 9/28. 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 11/111:14 pm -
1 stop16h 11m
Wed 11/186:15 am -
2 stops20h 21m
Deal found 9/28![Iberia logo]()
$859
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 10/281:45 pm -
1 stop14h 40m
Fri 11/136:50 am -
2 stops16h 42m
Deal found 9/25![United Airlines logo]()
$863
This Expedia deal was found by Cheapflights users on 9/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:30 pm -
1 stop12h 20m
Wed 11/188:55 am -
1 stop12h 59m
Deal found 9/27![KLM logo]()
$869
This Expedia deal was found by Cheapflights users on 9/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:30 pm -
1 stop12h 20m
Mon 11/168:25 pm -
2 stops25h 29m
Deal found 9/27![KLM logo]()
$875
This Travelocity deal was found by Cheapflights users on 9/25. 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.
Sat 11/75:57 pm -
2 stops31h 33m
Wed 11/1811:10 am -
2 stops16h 20m
Deal found 9/25![Multiple Airlines logo]()
$879
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 September 29, 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 September 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:45 pm -
1 stop14h 40m
Fri 11/136:50 am -
2 stops16h 42m
Deal found 9/26![United Airlines logo]()
$882
This Delta deal was found by Cheapflights users on 9/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:06 am -
2 stops16h 39m
Fri 11/136:30 am -
2 stops15h 24m
Deal found 9/26![Delta logo]()
$887
This Finnair deal was found by Cheapflights users on 9/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:21 pm -
1 stop13h 29m
Fri 11/1310:05 am -
1 stop15h 54m
Deal found 9/26![Finnair logo]()
$891
This Virgin Atlantic deal was found by Cheapflights users on 9/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/163:18 pm -
2 stops13h 37m
Tue 12/221:20 pm -
2 stops16h 03m
Deal found 9/27![Virgin Atlantic logo]()
$1,012
This Scandinavian Airlines deal was found by Cheapflights users on 9/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:20 pm -
3 stops20h 15m
Sun 10/256:40 am -
2 stops21h 19m
Deal found 9/25![Scandinavian Airlines logo]()
$1,081
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/610:27 am -
2 stops14h 53m
Fri 11/139:00 am -
2 stops16h 52m
Deal found 9/24![United Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 9/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/285:57 pm -
1 stop32h 58m
Sun 12/611:10 am -
2 stops17h 44m
Deal found 9/26![United Airlines logo]()
$938
This Delta deal was found by Cheapflights users on 9/27. 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 12/167:05 am -
1 stop18h 20m
Mon 12/216:20 am -
2 stops16h 51m
Deal found 9/27![Delta logo]()
$1,035
This United Airlines deal was found by Cheapflights users on 9/28. 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 11/69:55 am -
2 stops15h 25m
Tue 11/109:00 am -
2 stops16h 52m
Deal found 9/28![United Airlines logo]()
$965
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:06 am -
2 stops14h 39m
Sun 10/2510:50 am -
1 stop13h 45m
Deal found 9/24![Delta logo]()
$1,139
This Delta deal was found by Cheapflights users on 9/27. 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.
Tue 10/203:26 pm -
1 stop10h 49m
Fri 11/611:20 am -
1 stop14h 58m
Deal found 9/27![Delta logo]()
$1,146
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:55 pm -
1 stop11h 05m
Tue 10/2011:15 am -
1 stop17h 44m
Deal found 9/24![Delta logo]()
$1,148
Last-minute flights from Louisville to HeathrowDiscover last-minute flight deals from Louisville to Heathrow. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Heathrow. Data last updated September 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/212:36 pm -
1 stop11h 34m
Mon 11/26:20 am -
2 stops15h 31m
Deal found 9/23![Delta logo]()
$806
This Virgin Atlantic deal was found by Cheapflights users on 9/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:59 pm -
1 stop12h 16m
Mon 11/28:55 am -
1 stop20h 04m
Deal found 9/23![Virgin Atlantic logo]()
$813
This Iberia deal was found by Cheapflights users on 9/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:45 pm -
1 stop15h 50m
Tue 11/36:05 am -
2 stops20h 31m
Deal found 9/27![Iberia logo]()
$859
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:10 pm -
2 stops13h 00m
Tue 11/39:00 am -
2 stops16h 52m
Deal found 9/27![United Airlines logo]()
$884
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 10/281:45 pm -
1 stop14h 40m
Fri 11/136:50 am -
2 stops16h 42m
Deal found 9/25![United Airlines logo]()
$863
This Justfly.com deal was found by Cheapflights users on 9/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am -
2 stops35h 00m
Fri 11/139:00 am -
2 stops43h 30m
Deal found 9/25![Air Canada logo]()
$869
This Booking.com deal was found by Cheapflights users on 9/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:27 am -
2 stops16h 43m
Wed 11/1111:10 am -
2 stops16h 20m
Deal found 9/28![Multiple Airlines logo]()
$886
This Delta deal was found by Cheapflights users on 9/28. 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 10/2811:06 am -
2 stops16h 39m
Fri 11/136:30 am -
2 stops15h 24m
Deal found 9/28![Delta logo]()
$887
This Finnair deal was found by Cheapflights users on 9/28. 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.
Wed 10/281:21 pm -
1 stop13h 29m
Wed 11/118:20 am -
1 stop17h 39m
Deal found 9/28![Finnair logo]()
$891
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 September 29, 2026.
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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.
Wed 11/47:30 am -
2 stops19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Aer Lingus logo]()
$426
This Cheapflightsfares deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:29 am -
2 stops20h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Aer Lingus logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:55 am -
3 stops29h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$440
This FlightHub deal was found by Cheapflights users on 9/28. 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.
Sat 10/105:19 pm -
2 stops36h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Aer Lingus logo]()
$448
This Air France deal was found by Cheapflights users on 9/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:59 pm -
1 stop12h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air France logo]()
$460
This Virgin Atlantic deal was found by Cheapflights users on 9/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:06 am -
1 stop15h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Virgin Atlantic logo]()
$461
This Air Canada deal was found by Cheapflights users on 9/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:02 am -
3 stops17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Air Canada logo]()
$471
This Air Canada deal was found by Cheapflights users on 9/24. 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.
Wed 11/49:02 am -
3 stops17h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Air Canada logo]()
$475
This FlightHub deal was found by Cheapflights users on 9/28. 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.
Sat 10/108:19 pm -
1 stop29h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![British Airways logo]()
$482
This Expedia deal was found by Cheapflights users on 9/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:47 pm -
1 stop11h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![British Airways logo]()
$517
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 September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $806 (Delta) |
One-way from | $426 (Cheapflightsfares) |
Popular in | July |
Cheapest in | February |
Average price | $1,058 |
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 7,457,451 searches. Data last updated September 29, 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 Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 11/4
7:30 am-8:05 am
2 stops19h 35m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$426
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Sat 10/10
5:19 pm-11:10 am
2 stops36h 51m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$448
Quickest round-trip
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 11/11
12:57 pm-9:15 am
2 stops15h 18m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$460
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 10/21
7:00 am-6:45 am
1 stop18h 45m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$463
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Sat 10/10
8:19 pm-6:55 am
1 stop29h 36m
London Heathrow
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$482
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 10/28
1:45 pm-8:25 am
1 stop14h 40m
London Heathrow
Fri 11/13
6:50 am-6:32 pm
2 stops16h 42m
$882
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 10/28
11:06 am-7:45 am
2 stops16h 39m
London Heathrow
Fri 11/13
6:30 am-4:54 pm
2 stops15h 24m
$887
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 10/28
1:21 pm-6:50 am
1 stop13h 29m
London Heathrow
Fri 11/13
10:05 am-8:59 pm
1 stop15h 54m
$891
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Fri 11/6
10:27 am-6:20 am
2 stops14h 53m
London Heathrow
Fri 11/13
9:00 am-8:52 pm
2 stops16h 52m
$937
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Sat 11/28
5:57 pm-7:55 am
1 stop32h 58m
London Heathrow
Sun 12/6
11:10 am-11:54 pm
2 stops17h 44m
$938
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 September.
| 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 July is currently the most expensive (average of $1,348). 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?
Airfare is below average for this route at the moment.
Louisville to London Heathrow Airport flights typically cost between $882 and $1,114 in October.The cheapest round-trip price found within the last 5 days was $806 on Delta (Oct 21-Nov 2).
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 September 29, 2026.
See what other customers who have flown with Delta,United Airlines, andVirgin Atlantic 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
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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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
Gatwick
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Harrow
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Basingstoke
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Northampton
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Kingston upon Thames
Eastbourne
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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 7,457,451 searches. Data last updated September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$450 | Average$1,286 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$598 | Average$799 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$606 | Average$1,115 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$676 | Average$1,034 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$705 | Average$1,142 | FlexibilityNo cancel fee | On-time69% |