SDF - LON

£172 Find Cheap Flights from Louisville to London – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to London departing on 22/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£626
Multiple Airlines
Sat 26/9Sat 3/10
SDF - LGW • 2 stops
Cheapest one-way flight
£172
Multiple Airlines
Thu 22/10
SDF - LGW • 1 stop
Top airlines
Cheapest • from £651 (return)
Best reviews • 6.7 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Louisville and London. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £598 (return)
Shortest trip • 10h 49m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to London (SDF-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Louisville to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Louisville to London

Sat, 26 Sep - Sat, 3 Oct
Multiple Airlines Logo
10:56 - 10:00
SDF
-
LGW
42h 04m
2 stops
Multiple Airlines Logo
14:00 - 15:50
LGW
-
SDF
30h 50m
1 stop
£626Multiple Airlines
Mon, 19 Oct - Wed, 28 Oct
Iberia Logo
18:14 - 12:15
SDF
-
LHR
13h 01m
1 stop
Iberia Logo
07:35 - 21:35
LHR
-
SDF
18h 00m
2 stops
£651Iberia
Wed, 21 Oct - Wed, 28 Oct
Iberia Logo
12:41 - 10:35
SDF
-
LHR
16h 54m
2 stops
Iberia Logo
07:35 - 21:35
LHR
-
SDF
18h 00m
2 stops
£656Iberia
Wed, 11 Nov - Mon, 16 Nov
British Airways Logo
13:14 - 06:55
SDF
-
LHR
12h 41m
1 stop
British Airways Logo
16:30 - 10:22
LHR
-
SDF
22h 52m
2 stops
£660British Airways
Mon, 21 Sep - Fri, 2 Oct
Delta Logo
08:09 - 07:15
SDF
-
LHR
18h 06m
1 stop
Delta Logo
08:40 - 20:33
LHR
-
SDF
16h 53m
2 stops
£665Delta
Mon, 21 Sep - Fri, 2 Oct
American Airlines Logo
16:51 - 08:00
SDF
-
LHR
10h 09m
1 stop
American Airlines Logo
09:15 - 19:10
LHR
-
SDF
14h 55m
1 stop
£666American Airlines
Mon, 21 Sep - Fri, 2 Oct
Delta Logo
13:15 - 07:40
SDF
-
LHR
13h 25m
2 stops
Delta Logo
09:55 - 20:33
LHR
-
SDF
15h 38m
2 stops
£671Delta
Mon, 21 Sep - Fri, 2 Oct
British Airways Logo
17:59 - 10:50
SDF
-
LHR
11h 51m
1 stop
British Airways Logo
14:25 - 22:33
LHR
-
SDF
13h 08m
1 stop
£672British Airways
Mon, 21 Sep - Fri, 2 Oct
British Airways Logo
17:59 - 10:50
SDF
-
LHR
11h 51m
1 stop
British Airways Logo
14:25 - 22:33
LHR
-
SDF
13h 08m
1 stop
£673British Airways
Wed, 11 Nov - Sun, 15 Nov
Iberia Logo
13:14 - 10:25
SDF
-
LHR
16h 11m
1 stop
Iberia Logo
06:15 - 21:37
LHR
-
SDF
20h 22m
2 stops
£684Iberia
Booking Insights

KAYAK’s insights & trends for Louisville to London flights

Get data-powered insights and trends into flights from Louisville to London to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Louisville to London?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to London departing in September.

Flight prices are below average for this route right now.

Flights to London from Louisville usually cost between £714 and £882 in September.
The lowest price found in the past 5 days was £626 on Multiple Airlines (26 Sept–3 Oct).

What is the cheapest month to fly from Louisville to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to London is January, where tickets cost £558 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £1,012 and £998 respectively.

Good to know - Cheap tickets from Louisville to London

Low season

November

Cheapest flight

£172
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Louisville to London Gatwick Airport

When to book flights from Louisville to London

Are your dates flexible? Find out the best times to travel from Louisville to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to London

  • Will I pay extra for pre-selecting a seat when flying from Louisville International Airport, Kentucky, to London?

    Virgin Atlantic allows you to select a seat from a seat map. Gold and Silver members can choose any standard seat when booking SDF-LHR flights without a charge. The seat assignment is usually done at check-in unless you're traveling in the Economy Light cabin, in which case you'll pay a small fee for pre-selection.

  • Will my child get a reduced ticket price from Louisville International Airport (SDF) to London?

    All children aged 0 to 23 months sit on adult laps throughout the flight. Older kids up to age 12 are charged less by KLM Airlines. So, when booking your flight through KAYAK, indicate your child's age to see an automatic fare reduction.

  • Are there airlines with fully flat beds on this route?

    The Business class cabin by British Airways has lie-flat seats. With a Club World ticket, you'll enjoy flying in a seat that extends into a flatbed (6 feet long). These seats have lumbar support and a fully adjustable headrest. You may request bedding for added comfort.

  • Can I travel to London with other animals besides cats and dogs?

    Always check the airline's pet policy before planning a trip with any animal. Iberia Airlines allows pets in the passenger cabin (18lb or less, including the cage), in the hold as extra baggage, or cargo compartment. You may bring a cat, dog, tortoise, fish, and bird accompanied by the correct documents. They, however, do not permit dangerous breeds and brachycephalic animals.

  • What is the cheapest flight from Louisville to London?

    In the last 5 days, the lowest price for a flight from Louisville to London was £172 for a one-way ticket and £626 for a return.

  • Which airports will I be using when flying from Louisville to London?

    Louisville is served by only 1 airport and there are 2 airports in London. You will leave Louisville from Louisville Intl and you will be arriving in London at one of these airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from Louisville to London?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Louisville to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Louisville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to London

  • Most carriers operating flights from Louisville International Airport (SDF) to London Heathrow (LHR) have a single stopover. American Airlines stop at Boston Logan (BOS), O'Hare Intl Airport (ORD), or Charlotte Douglas Airport (CLT), while United connects via Dulles Airport (IAD). If you wish to land at London Gatwick (LGW), you might have two stopovers at Atlanta Airport (ATL) and John F. Kennedy Airport (JFK).
  • Suppose your physique prevents you from sitting in a single seat. You can get more personal space for better comfort while on the route SDF-IAD-FRA-LCY, often operated by Lufthansa. Consider reserving an empty adjacent seat with the airline. However, you can only pay the extra fee at the check-in counter on your departure date.
  • You only need a visa to fly to London if you plan to stay in the United Kingdom for over six months. You'll get a visa vignette or sticker on your passport at the airport's immigration office. To extend your business trip or vacation for another six months, complete the UK visa renewal form, pay the applicable fees, and book an appointment at any UKVCAS office for biometrics.
  • British Airways is one of the best airlines for wheelchair users. If you have a mobility issue, you can specify the type of assistance you need when booking your flight. Special assistance includes basic wheelchair assistance and full-service- luggage storage and retrieval, boarding and alighting the aircraft, and chair aid to move around the cabin.
  • Children through age 17 are automatically subject to unaccompanied minor protocols, and the standard unaccompanied minor fee is charged where applicable. With United Airlines, the service is available for kids between 5 and 14 and is optional for the age bracket 15-17. When booking tickets for kids traveling alone, inform the airline who will drop them off at SDF and pick them up from the arrival airport in London.

Reviews of the top airline flying from Louisville to London

 
See real verified KAYAK customer reviews for airlines flying from Louisville to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 8129 reviews
6.5Entertainment
7.7Crew
7.0Boarding
6.8Comfort
6.4Food
Airline reviews

As I remember my last BA flight - mediocre at best. Uncomfortable with poor and minimal food and drinks. Screen broke shortly into flight so didn’t have access to entertainment either.

6.0 GoodPeter, Jul 2026
IAH - LHR
Read more British Airways reviews

As I remember my last BA flight - mediocre at best. Uncomfortable with poor and minimal food and drinks. Screen broke shortly into flight so didn’t have access to entertainment either.

They gave away my business class seat. No explanation and no apology. Told me I had to take the downgrade if I wanted to get to India. Then no WiFi for 10 hours. Just ridiculous. We should not work with this company at Deloitte. They don’t know how to run a business.

Work being done at DIA made it difficult to find BA desk.

The airplane was refreshingly silent in flight than Airbuses, landing was very soft and secure. Food was also warm and light , not a big fan of curry though. Staff was polite, discrete, professional and helpful.

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Meh. Lived the seat. The entertainment unit did not work and had to be reset 3 times. Service was SLOW taking over 90 min to be served. Crew forgot about my meal. Chicken was dry and almost inedible.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

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

Information on your arrival and departure airports