SDF - LON

£244 Find Cheap Flights from Louisville to London

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 24/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£642
Typical prices: £650-£513
Iberia
Wed 9/9Tue 22/9
SDF - LHR • 1 stop
Cheapest one-way flight
£244
British Airways
Mon 24/8
SDF - LHR • 1 stop
Top airlines
Cheapest • from £642 (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
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Top stopover airports
Cheapest • Avg £589 (return)
Shortest trip • 10h 49m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 39% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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

Wed, 9 Sep - Tue, 22 Sep
Iberia Logo
19:07 - 12:15
SDF
-
LHR
12h 08m
1 stop
Iberia Logo
07:50 - 22:58
LHR
-
SDF
20h 08m
2 stops
£642Iberia
Wed, 9 Sep - Tue, 22 Sep
Iberia Logo
19:07 - 12:15
SDF
-
LHR
12h 08m
1 stop
Iberia Logo
07:50 - 22:58
LHR
-
SDF
20h 08m
2 stops
£643Iberia
Wed, 14 Oct - Wed, 21 Oct
Virgin Atlantic Logo
12:53 - 07:15
SDF
-
LHR
13h 22m
1 stop
Virgin Atlantic Logo
12:25 - 22:55
LHR
-
SDF
15h 30m
1 stop
£645Virgin Atlantic
Fri, 17 Jul - Wed, 26 Aug
Multiple Airlines Logo
15:31 - 10:00
SDF
-
LGW
13h 29m
1 stop
Multiple Airlines Logo
14:00 - 08:46
LGW
-
SDF
47h 46m
2 stops
£650Multiple Airlines
Tue, 20 Oct - Mon, 26 Oct
Iberia Logo
19:14 - 10:50
SDF
-
LHR
10h 36m
1 stop
Iberia Logo
19:40 - 22:55
LHR
-
SDF
31h 15m
2 stops
£650Iberia
Tue, 20 Oct - Tue, 27 Oct
Scandinavian Airlines Logo
15:24 - 16:00
SDF
-
LHR
19h 36m
2 stops
Scandinavian Airlines Logo
19:30 - 00:02
LHR
-
SDF
32h 32m
2 stops
£653Scandinavian Airlines
Sun, 23 Aug - Fri, 4 Dec
British Airways Logo
14:43 - 10:30
SDF
-
LHR
14h 47m
1 stop
British Airways Logo
07:30 - 19:13
LHR
-
SDF
16h 43m
2 stops
£657British Airways
Sun, 23 Aug - Fri, 4 Dec
British Airways Logo
16:55 - 09:05
SDF
-
LHR
11h 10m
1 stop
British Airways Logo
07:30 - 19:13
LHR
-
SDF
16h 43m
2 stops
£658British Airways
Tue, 20 Oct - Sat, 24 Oct
Scandinavian Airlines Logo
12:53 - 21:40
SDF
-
LHR
27h 47m
2 stops
Scandinavian Airlines Logo
06:40 - 00:02
LHR
-
SDF
22h 22m
2 stops
£662Scandinavian Airlines
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
17:08 - 08:00
SDF
-
LHR
9h 52m
1 stop
Multiple Airlines Logo
06:15 - 23:17
LHR
-
SDF
22h 02m
2 stops
£662Multiple Airlines
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.

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 April, where tickets cost £334 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £702 and £513 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from Louisville to London, you should book around 2 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know - Cheap tickets from Louisville to London

Low seasonNovember
Cheapest flight£244
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 22% lower on average.
Flight from Louisville to London Heathrow 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 3 days, the lowest price for a flight from Louisville to London was £244 for a one-way ticket and £642 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 7937 reviews
6.9Boarding
6.4Food
6.4Entertainment
6.8Comfort
7.7Crew
Airline reviews

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

10.0 ExcellentAnonymous, Apr 2026
SFO - LHR
Read more British Airways reviews

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Overall ok. Best part has always been the sundae dessert.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

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

Information on your arrival and departure airports