$207+ Cheap flights from Louisville (SDF) to London (LON)
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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Louisville to London 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.Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or September, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Thursday
Cheap flight deals from Louisville to London
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to London (LON). 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 junio 12, 2025.
Round-trip from | $640 (Booking.com) |
|---|---|
One-way from | $207 (Trip.com) |
Popular in | June |
Cheapest in | October |
Average price | $1,380 |
Find flight deals from Louisville to London
Cheapest flights from Louisville to LondonExplore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
This Booking.com deal was found by Cheapflights users on 6/11. 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.
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/9. 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.
This Netflights deal was found by Cheapflights users on 6/11. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/11. 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.
This Norse deal was found by Cheapflights users on 6/11. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/10. 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.
This Iberia deal was found by Cheapflights users on 6/11. 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.
This lol.travel deal was found by Cheapflights users on 6/11. 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.
This Delta deal was found by Cheapflights users on 6/9. 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.
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This British Airways deal was found by Cheapflights users on 6/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to London 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 junio 12, 2025.
Use the filters below to find and compare flights from Louisville to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
mié. 7/30
7:00 am-10:00 am
2 stops22h 00m
London Heathrow
vie. 10/3
2:05 pm-12:18 pm
2 stops27h 13m
LouisvilleLondon
SDF - LGW
SDFLGW
Louisville Intl
dom. 8/3
12:50 pm-10:00 am
2 stops16h 10m
London Gatwick
mar. 8/19
12:00 pm-10:46 pm
2 stops15h 46m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
mié. 7/30
3:21 pm-7:15 am
1 stop10h 54m
London Heathrow
vie. 10/3
9:20 am-4:50 pm
1 stop12h 30m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
mié. 7/30
2:10 pm-6:20 am
1 stop11h 10m
London Heathrow
vie. 10/3
2:05 pm-1:21 pm
2 stops28h 16m
LouisvilleLondon
SDF - LGW
SDFLGW
Louisville Intl
lun. 8/18
4:22 pm-3:35 pm
2 stops18h 13m
London Gatwick
vie. 8/22
2:00 pm-8:11 am
1 stop23h 11m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
dom. 8/3
6:50 pm-12:15 pm
1 stop12h 25m
London Heathrow
mar. 8/19
10:30 am-8:02 pm
1 stop14h 32m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
mar. 9/2
10:45 am-1:30 pm
1 stop21h 45m
London Heathrow
jue. 9/11
11:30 am-10:30 pm
2 stops16h 00m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
dom. 8/3
7:41 pm-1:10 pm
1 stop12h 29m
London Heathrow
mar. 8/19
11:45 am-6:30 pm
1 stop11h 45m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
mar. 7/22
2:33 pm-9:05 am
1 stop13h 32m
London Heathrow
mar. 7/29
8:20 am-7:50 pm
1 stop16h 30m
LouisvilleLondon
SDF - LHR
SDFLHR
Louisville Intl
jue. 8/14
12:50 pm-4:00 pm
2 stops22h 10m
London Heathrow
mar. 8/19
5:00 pm-9:14 pm
2 stops33h 14m
Best time to book a flight from Louisville to London
Have a flexible travel schedule? Discover the best time to fly to London from Louisville with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Louisville to London
How far ahead should I book a flight from Louisville to London?
Use this chart to determine the optimal time to book a round-trip flight from Louisville to London. Price data was last updated on June 9, 2025.
To ensure you get the cheapest price possible for a flight from Louisville to London, you should look to book at least 74 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?
Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of $661). Flying from Louisville to London in June is currently the most expensive (average of $1,108). 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 LON?
Find hourly flight availability from Louisville to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.
It’s typically best to fly out from Louisville to London in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Louisville to London?
Use this chart to determine the cheapest time to fly round-trip from Louisville to London. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Louisville to London flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. 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 London. Reviews last updated junio 12, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Louisville to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Louisville to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Louisville to London
Discover the top 5 airlines that operate flights from Louisville to London. 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 junio 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$619 | Average$796 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$692 | Average$906 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$713 | Average$1,034 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$734 | Average$996 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$776 | Average$1,242 | FlexibilityNo cancel fee | On-time72% |