Cheap flights from Louisville to London Heathrow Airport from £214
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 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
16 Oct — 23 Oct1
Return
1 adult
Economy
Return
1 adult, Economy
Cheapflights Tip: The best prices from Louisville Intl to London Heathrow are usually found in February or September, booked 69 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
Cheap flight deals from Louisville to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 September 2025.
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 16 September 2025.
Mon 13/1010:30SDF - LHR
1 stop17h 25mDelta
Wed 22/1011:30LHR - SDF
2 stops17h 31mDelta
Deal found 15/9£418
Sun 21/919:33SDF - LHR
1 stop12h 57mDelta
Tue 30/909:55LHR - SDF
2 stops16h 18mDelta
Deal found 14/9£419
Wed 8/1014:33SDF - LHR
2 stops13h 42mDelta
Wed 29/1009:00LHR - SDF
2 stops19h 01mDelta
Deal found 13/9£421
Wed 8/1014:33SDF - LHR
2 stops13h 42mDelta
Tue 14/1006:30LHR - SDF
2 stops15h 54mDelta
Deal found 13/9£422
Mon 13/1018:05SDF - LHR
1 stop9h 50mKLM
Wed 22/1011:45LHR - SDF
1 stop14h 30mKLM
Deal found 15/9£424
Wed 8/1014:33SDF - LHR
2 stops13h 42mVirgin Atlantic
Tue 14/1013:05LHR - SDF
1 stop13h 43mVirgin Atlantic
Deal found 13/9£427
Mon 1/1215:09SDF - LHR
2 stops22h 21mScandinavian Airlines
Fri 5/1206:40LHR - SDF
2 stops22h 25mScandinavian Airlines
Deal found 15/9£444
Thu 13/1115:09SDF - LHR
2 stops21h 31mScandinavian Airlines
Wed 19/1119:30LHR - SDF
2 stops32h 18mScandinavian Airlines
Deal found 14/9£453
Thu 30/1012:39SDF - LHR
1 stop14h 26mVirgin Atlantic
Thu 6/1108:55LHR - SDF
1 stop13h 18mVirgin Atlantic
Deal found 15/9£465
Thu 30/1008:17SDF - LHR
1 stop18h 08mDelta
Thu 6/1111:30LHR - SDF
2 stops16h 04mDelta
Deal found 15/9£484
Sun 9/1112:37SDF - LHR
1 stop13h 28mVirgin Atlantic
Sun 16/1111:45LHR - SDF
2 stops14h 29mVirgin Atlantic
Deal found 14/9£485
Best flights from Louisville to Heathrow
Discover carefully curated flight deals from Louisville to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.
Mon 13/1018:05SDF - LHR
1 stop9h 50mDelta
Wed 22/1011:30LHR - SDF
2 stops17h 31mDelta
Deal found 14/9£418
Tue 11/1118:16SDF - LHR
1 stop12h 24mKLM
Wed 19/1108:55LHR - SDF
1 stop15h 17mKLM
Deal found 15/9£424
Wed 8/1014:33SDF - LHR
2 stops13h 17mVirgin Atlantic
Wed 29/1013:00LHR - SDF
1 stop12h 15mVirgin Atlantic
Deal found 13/9£427
Mon 1/1215:09SDF - LHR
2 stops22h 21mScandinavian Airlines
Fri 5/1221:05LHR - SDF
3 stops29h 25mScandinavian Airlines
Deal found 15/9£450
Wed 8/1014:33SDF - LHR
2 stops13h 42mDelta
Wed 29/1009:00LHR - SDF
2 stops19h 01mDelta
Deal found 13/9£421
Mon 13/1020:15SDF - LHR
1 stop12h 15mKLM
Wed 22/1011:45LHR - SDF
1 stop14h 30mKLM
Deal found 14/9£424
Wed 8/1014:33SDF - LHR
2 stops13h 42mVirgin Atlantic
Tue 14/1013:05LHR - SDF
1 stop13h 43mVirgin Atlantic
Deal found 13/9£427
Thu 12/217:45SDF - LHR
2 stops18h 55mScandinavian Airlines
Wed 20/519:30LHR - SDF
2 stops32h 02mScandinavian Airlines
Deal found 15/9£465
Fri 13/214:59SDF - LHR
1 stop13h 01mDelta
Wed 20/510:55LHR - SDF
1 stop16h 37mDelta
Deal found 15/9£478
Thu 12/214:59SDF - LHR
1 stop10h 26mVirgin Atlantic
Wed 20/510:55LHR - SDF
1 stop16h 37mVirgin Atlantic
Deal found 15/9£478
Fri 13/206:36SDF - LHR
1 stop19h 29mVirgin Atlantic
Wed 20/513:50LHR - SDF
2 stops15h 07mVirgin Atlantic
Deal found 15/9£482
Last-minute flights from Louisville to Heathrow
Discover last-minute flight deals from Louisville to Heathrow. Data last updated 16 September 2025 and is based on user searches.
Sun 21/919:33SDF - LHR
1 stop12h 57mDelta
Tue 30/909:55LHR - SDF
2 stops16h 18mDelta
Deal found 14/9£419
Sat 4/1017:00SDF - LHR
1 stop12h 30mDelta
Sat 11/1012:25LHR - SDF
1 stop15h 29mDelta
Deal found 15/9£497
Wed 8/1014:33SDF - LHR
2 stops13h 42mDelta
Wed 29/1009:00LHR - SDF
2 stops19h 01mDelta
Deal found 13/9£421
Wed 8/1014:33SDF - LHR
2 stops13h 42mDelta
Tue 14/1006:30LHR - SDF
2 stops15h 54mDelta
Deal found 13/9£422
Wed 8/1014:33SDF - LHR
2 stops13h 17mVirgin Atlantic
Wed 29/1013:00LHR - SDF
1 stop12h 15mVirgin Atlantic
Deal found 13/9£427
Mon 13/1010:30SDF - LHR
1 stop17h 25mDelta
Wed 22/1011:30LHR - SDF
2 stops17h 31mDelta
Deal found 15/9£418
Mon 13/1018:05SDF - LHR
1 stop9h 50mKLM
Wed 22/1011:45LHR - SDF
1 stop14h 30mKLM
Deal found 15/9£424
Fri 17/1006:00SDF - LHR
1 stop20h 15mDelta
Fri 24/1011:45LHR - SDF
2 stops17h 16mDelta
Deal found 15/9£493
Thu 30/1012:39SDF - LHR
1 stop14h 26mVirgin Atlantic
Thu 6/1108:55LHR - SDF
1 stop13h 18mVirgin Atlantic
Deal found 15/9£465
Thu 30/1008:17SDF - LHR
1 stop18h 08mDelta
Thu 6/1111:30LHR - SDF
2 stops16h 04mDelta
Deal found 15/9£484
One-way flights from Louisville to Heathrow
Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.
Mon 17/1121:33SDF - LHR
3 stops38h 57mMultiple Airlines
Deal found 15/9£214
Sat 1/1118:58SDF - LHR
3 stops47h 42mMultiple Airlines
Deal found 15/9£255
Wed 24/910:14SDF - LHR
3 stops20h 41mMultiple Airlines
Deal found 14/9£302
Wed 24/917:18SDF - LHR
1 stop14h 12mBritish Airways
Deal found 14/9£308
Wed 24/909:05SDF - LHR
2 stops16h 25mAir Canada
Deal found 14/9£321
Sat 1/1113:07SDF - LHR
2 stops51h 28mAir Canada
Deal found 15/9£334
Sat 1/1118:46SDF - LHR
1 stop33h 49mBritish Airways
Deal found 15/9£336
Fri 26/908:30SDF - LHR
2 stops17h 25mUnited Airlines
Deal found 15/9£343
Fri 26/910:14SDF - LHR
3 stops41h 51mMultiple Airlines
Deal found 15/9£375
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 16 September 2025.
Use the filters below to find and compare flights from Louisville to London Heathrow Airport that are best for you.
Fly from
Louisville
Fly to
Heathrow
Route
Depart
Return
Price
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 13/10
18:05-08:55
1 stop9h 50m
London Heathrow
Wed 22/10
11:30-00:01
2 stops17h 31m
£418
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 8/10
14:33-09:15
2 stops13h 42m
London Heathrow
Wed 29/10
09:00-00:01
2 stops19h 01m
£421
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Tue 11/11
18:16-11:40
1 stop12h 24m
London Heathrow
Wed 19/11
08:55-19:12
1 stop15h 17m
£424
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 13/10
20:15-13:30
1 stop12h 15m
London Heathrow
Wed 22/10
11:45-21:15
1 stop14h 30m
£424
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 8/10
14:33-08:50
2 stops13h 17m
London Heathrow
Wed 29/10
13:00-21:15
1 stop12h 15m
£427
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Wed 8/10
14:33-09:15
2 stops13h 42m
London Heathrow
Tue 14/10
13:05-21:48
1 stop13h 43m
£427
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Mon 1/12
15:09-18:30
2 stops22h 21m
London Heathrow
Fri 5/12
21:05-21:30
3 stops29h 25m
£450
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Thu 12/2
17:45-17:40
2 stops18h 55m
London Heathrow
Wed 20/5
19:30-22:32
2 stops32h 02m
£465
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Fri 13/2
14:59-09:00
1 stop13h 01m
London Heathrow
Wed 20/5
10:55-22:32
1 stop16h 37m
£478
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
Thu 12/2
14:59-06:25
1 stop10h 26m
London Heathrow
Wed 20/5
10:55-22:32
1 stop16h 37m
£478
Flights are sorted by cheapest return flights first.
Deals found on 15/9
Showing 1-10 of 20 results
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Best time to book a flight from Louisville to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Louisville with our price prediction graph.
Estimated return 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
Prices
More
How far ahead should I book a flight from Louisville to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from Louisville to Heathrow. Price data was last updated on 12 September 2025.
The best time to book flights from Louisville to London Heathrow Airport is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Louisville to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £112). Flying from Louisville to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SDF to LHR?
Find hourly flight availability from Louisville to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.
It’s typically best to fly out from Louisville to London Heathrow Airport at midday. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.
How much does it cost for a return flight from Louisville to London Heathrow Airport?
What’s the top stopover airport for flights from Louisville to London Heathrow Airport?
Share of one-stop return flights from Louisville to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of one-stop itineraries from Louisville to London Heathrow Airport on Cheapflights.
What’s the fastest stopover option from Louisville to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from Louisville to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 11h 08m.
What’s the fastest stopover option from Louisville to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from Louisville to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 11h 08m.
Which airport typically offers the quickest stopover for flights from Louisville to London Heathrow Airport?
Average stopover duration for one-stop one-way flights from Louisville to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 2h 14m.
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 16 September 2025.
Read reviews from past customers who have flown with Virgin Atlantic and American Airlines
from Louisville to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Related info for your journey
Find useful and relevant information for your journey from Louisville to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Louisville to London Heathrow?
Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to London Heathrow. 2 airlines have flights from Louisville Intl to London Heathrow on a regular basis. Booking flights from Louisville Intl to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.
How long is the flight from Louisville to London Heathrow Airport?
There are many flights that can get you from Louisville to London Heathrow Airport in 9h 50m. Fly via Delta or KLM to get the fastest option. The distance between Louisville and London Heathrow Airport is about 4033 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Louisville to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Louisville to London Heathrow Airport round-trip from £531. Another airline that can offer you cheap pricing is American Airlines. You may be able to fly from Louisville to London Heathrow Airport for 25% less than the average price by searching for these airlines.
Can I find deals for business class flights from Louisville to Heathrow?
Yes. Cheapflights offers flight deals from Louisville to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Louisville to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £112). Flying from Louisville to London Heathrow Airport in August is currently the most expensive (average of £164). 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.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 16 September 2025.
Discover the top 2 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 858,174 searches. Data last updated 16 September 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Louisville to Heathrow?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Louisville to Heathrow?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Louisville.
Can Cheapflights find flights from Louisville to Heathrow with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Louisville to Heathrow, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Louisville to Heathrow become cheaper?
Not ready to book yet? You can track prices for flights from Louisville to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.
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