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Cheap flights from Louisville to London from £236

SDF — LON
20 Sep — 27 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to London

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to London

Mon 16/1111:15 -
1 stop16h 55m
Wed 18/1106:50 -
2 stops15h 47m
Deal found 16/8£569
Wed 4/1113:14 -
1 stop16h 11m
Mon 16/1113:25 -
2 stops37h 11m
Deal found 18/8£622
Mon 21/917:59 -
1 stop13h 16m
Tue 6/1006:15 -
2 stops20h 20m
Deal found 19/8£626
Tue 20/1018:07 -
1 stop13h 08m
Fri 30/1007:30 -
2 stops18h 05m
Deal found 20/8£628
Mon 5/1010:16 -
1 stop16h 49m
Thu 15/1006:15 -
2 stops20h 20m
Deal found 16/8£633
Wed 30/918:03 -
1 stop11h 47m
Tue 6/1006:15 -
2 stops20h 20m
Deal found 19/8£633
Tue 10/1113:22 -
1 stop17h 38m
Tue 17/1111:55 -
1 stop14h 15m
Deal found 21/8£638
Mon 16/1113:14 -
2 stops19h 16m
Wed 25/1106:15 -
2 stops20h 24m
Deal found 21/8£639
Mon 21/910:29 -
2 stops28h 31m
Fri 2/1011:30 -
2 stops28h 16m
Deal found 19/8£655
Tue 10/1114:11 -
2 stops14h 04m
Tue 17/1109:50 -
2 stops15h 49m
Deal found 21/8£668
Sun 20/908:40 -
2 stops17h 15m
Sun 27/914:30 -
2 stops28h 35m
Deal found 21/8£672
Mon 5/1010:00 -
2 stops17h 40m
Thu 15/1009:15 -
2 stops19h 44m
Deal found 16/8£674

Find flight deals from Louisville to London

Round-trip from

£569

One-way from

£236

Popular in

June

Cheapest in

November

Average price

£809
United Airlines
  • United Airlines
  • 16/11-18/11
  • 3 total stops
  • 32h 42m total
  • Louisville to London
Search Deals
British Airways
  • British Airways
  • 2/12
  • 1 total stop
  • 16h 11m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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

Cheapest return flight

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Fri 4/12

15:30-07:40

1 stop35h 10m

London Heathrow

Mon 7/12

06:50-23:49

2 stops21h 59m

£647

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 30/12

14:40-06:40

1 stop11h 00m

London Heathrow

Wed 6/1

11:05-16:49

2 stops34h 44m

£682

LouisvilleLondon

SDF Louisville Intl - LGW London Gatwick

SDFLGW

Louisville Intl

Mon 5/10

13:15-09:40

2 stops15h 25m

London Gatwick

Thu 15/10

10:25-22:37

2 stops17h 12m

£683

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 16/11

06:00-21:20

1 stop10h 20m

London Heathrow

Wed 18/11

10:00-20:33

1 stop15h 33m

£685

LouisvilleLondon

SDF Louisville Intl - LGW London Gatwick

SDFLGW

Louisville Intl

Sat 19/9

09:47-08:40

2 stops17h 53m

London Gatwick

Sat 26/9

14:30-13:00

2 stops27h 30m

£709
Fastest return journey

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Fri 2/10

06:15-21:25

1 stop10h 10m

London Heathrow

Fri 9/10

12:15-19:24

1 stop12h 09m

£709

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sat 21/11

13:45-21:20

1 stop26h 35m

London Heathrow

Sat 5/12

07:30-22:09

2 stops19h 39m

£710

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sun 20/9

12:39-09:15

1 stop15h 36m

London Heathrow

Sat 3/10

06:30-19:30

2 stops18h 00m

£713

LouisvilleLondon

SDF Louisville Intl - LGW London Gatwick

SDFLGW

Louisville Intl

Thu 8/10

13:59-09:25

2 stops14h 26m

London Gatwick

Thu 29/10

10:00-23:59

2 stops17h 59m

£721

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Sat 3/10

13:25-05:55

1 stop11h 30m

London Heathrow

Sat 10/10

06:50-17:40

2 stops15h 50m

£724

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Louisville to London

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 £550). Flying from Louisville to London in June is currently the most expensive (average of £997). 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 for a return flight from Louisville to London?

Airfare is below average for this route at the moment.
Louisville to London flights typically cost between £623 and £773 in November.
The cheapest return price found within the last 5 days was £569 on United Airlines (16 Nov–18 Nov).

How far ahead should I book a flight from Louisville to London?

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing London

Check out reviews from past customers who have flown with British Airways from Louisville to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,181 reviews
Check prices

Crew

7.7

Entertainment

6.5

Food

6.4

Boarding

7.0

Comfort

6.8

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,181 reviews
British Airways
6.7
Okay
8,181 reviews
Check prices

Crew

7.7

Entertainment

6.5

Food

6.4

Boarding

7.0

Comfort

6.8

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

Related info for your journey

  • What airport do you fly from for flights from Louisville to London?

    For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Louisville Intl on a regular basis.

  • How long is the flight from Louisville to London?

    Departing from Louisville to London will take you 15h 25m. Airlines will cover a distance of 4053 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Louisville to London?

    The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.

  • Can I find deals for flights from Louisville to London that include hotel bookings?

    Yes. In addition to deals on Louisville to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Louisville to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to London.

  • Can I find deals for business class flights from Louisville to London?

    Yes. Cheapflights offers flight deals from Louisville to London 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?

    Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of £550). Flying from Louisville to London in June is currently the most expensive (average of £997). 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.

See more FAQs

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