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Fly to
Route
Depart
Return
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Tue 2/3
15:50-07:40
1 stop34h 50m
London Heathrow
Fri 5/3
06:50-18:04
2 stops16h 14m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 27/1
10:12-08:35
1 stop17h 23m
London Heathrow
Tue 2/2
19:40-21:37
2 stops30h 57m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 27/1
10:20-07:10
2 stops15h 50m
London Heathrow
Tue 2/2
08:45-23:44
2 stops19h 59m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Mon 1/2
13:11-10:25
1 stop16h 14m
London Heathrow
Wed 10/2
06:15-21:37
2 stops20h 22m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 3/3
14:20-10:45
2 stops15h 25m
London Heathrow
Wed 17/3
11:10-23:55
2 stops16h 45m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Tue 2/3
09:00-21:00
2 stops31h 00m
London Heathrow
Fri 5/3
06:50-20:14
2 stops18h 24m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Mon 1/2
13:11-11:55
2 stops17h 44m
London Heathrow
Wed 10/2
07:35-21:37
2 stops19h 02m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Wed 27/1
18:29-10:25
1 stop10h 56m
London Heathrow
Tue 2/2
09:55-19:29
1 stop14h 34m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Tue 2/2
08:50-21:00
2 stops31h 10m
London Heathrow
Tue 16/2
13:00-13:02
2 stops29h 02m
LouisvilleLondon
SDF Louisville Intl - LHR London Heathrow
SDFLHR
Louisville Intl
Mon 1/2
13:41-08:25
1 stop13h 44m
London Heathrow
Mon 1/3
16:40-18:04
2 stops30h 24m
See travel insights to London from
How to get the cheapest flight ticket from Louisville to London
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Louisville and London?
Prices are currently low for flights on this route.
Typical prices usually range from £659 to £960.The lowest price recently found on this route was £577.
What is the cheapest month to fly to London?
The cheapest month to fly to London from Louisville is in January. Flight prices, which tend to average around £592, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Louisville averaging around £605.
How have Louisville to London flight prices changed over time?
As of October 2026, prices for Louisville to London flights are approximately 43% cheaper when compared to flights at the same time last year.
When to book flights from Louisville to London
Cheap Louisville to London (SDF to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Louisville to London
Frequently asked questions about flying from Louisville to London
How far is Louisville Intl to London by plane?
There are 4042.6 mi between Louisville Intl and London. By plane, this route typically takes 12h 40m.
When did momondo last update prices for flights from Louisville Intl Airport to London?
Prices for flights from Louisville Intl Airport to London are updated daily.
How old do you have to be to fly from Louisville Intl Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Louisville to London?
Based on momondo bookings for flights between Louisville and London, the leading airline is British Airways, making up 100% of the total bookings.
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Louisville to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Louisville.
Can I find flights from Louisville to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London from Louisville which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Louisville to London?
Once all potential Louisville to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Louisville to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.