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SDF - LON

$191 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 9/10. 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
0 bags
Wed 7/10
Wed 7/17

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London.
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Louisville to London (SDF-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 and deals for you by selecting your travel dates.
Choose your dates
7:03 am - 7:30 amSDF-LGW
19h 27m2 stops
12:30 pm - 2:23 pmLGW-SDF
30h 53m2 stops
$716American Airlines
Find Deal
Fri, Nov 15 - Sat, Nov 23
7:45 am - 10:00 amSDF-LGW
21h 15m1 stop
2:00 pm - 11:50 pmLGW-SDF
14h 50m1 stop
Tue, Jul 9 - Tue, Jul 16
4:48 pm - 10:40 amSDF-LHR
12h 52m1 stop
7:10 pm - 10:45 pmLHR-SDF
32h 35m2 stops
$890British Airways
Find Deal
Mon, Jul 8 - Mon, Jul 15
11:41 am - 10:00 amSDF-LHR
17h 19m2 stops
3:20 pm - 10:44 pmLHR-SDF
12h 24m1 stop
$891United Airlines
Find Deal
Tue, Jul 16 - Tue, Jul 23
10:26 am - 8:05 amSDF-LHR
16h 39m2 stops
10:50 am - 10:49 pmLHR-SDF
16h 59m2 stops
$896Delta
Find Deal
Mon, Jul 15 - Tue, Jul 23
5:13 pm - 1:15 pmSDF-LHR
15h 02m2 stops
7:10 pm - 10:45 pmLHR-SDF
32h 35m2 stops
$902British Airways
Find Deal
Mon, Jul 8 - Mon, Jul 15
8:08 pm - 1:15 pmSDF-LHR
12h 07m1 stop
11:30 am - 10:49 pmLHR-SDF
16h 19m2 stops
$944Delta
Find Deal
Thu, Jul 11 - Thu, Jul 18
3:47 pm - 7:40 amSDF-LHR
34h 53m1 stop
2:05 pm - 2:40 pmLHR-SDF
29h 35m2 stops
$945United Airlines
Find Deal
Mon, Jul 8 - Mon, Jul 15
2:20 pm - 4:25 pmSDF-LCY
21h 05m2 stops
9:15 am - 8:12 pmLCY-SDF
15h 57m2 stops
$1,074Lufthansa
Find Deal
Mon, Jul 15 - Tue, Jul 23
2:20 pm - 6:35 pmSDF-LCY
23h 15m2 stops
7:10 pm - 8:12 pmLCY-SDF
30h 02m2 stops
$1,091Lufthansa
Find Deal
Mon, Jul 8 - Mon, Jul 15

Flights from Louisville to London - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Louisville to London?

The average price of all flights from Louisville to London clicked on KAYAK for each day over the last 12 months.
For Louisville to London, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from London back to Louisville, the best deals are generally found on Thursday, with Sunday being the most expensive.

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 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 February, where tickets cost $720 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,475 and $1,311 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Louisville to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 days before departure.

Which airlines provide the cheapest flights from Louisville to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on American Airlines ($508) and Air Canada ($514). The cheapest round-trip tickets were found on American Airlines ($716) and British Airways ($890).

Good to know

Low season

February

High season

March

Cheapest flight

$191
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 19% 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 $191 for a one-way ticket and $716 for a round-trip.

  • Do I need a passport to fly between Louisville and London?

    Yes

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

    On your way to London, you’ll fly out from Louisville Intl. You’ll be landing in one of London’s 2 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.

  • Which airline alliances offer flights from Louisville to London?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Louisville and London, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Louisville to London, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Louisville to London are Delta and KLM. With an average price for the route of $822 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $826 and an overall rating of 7.8.

  • 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 round-trip 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.

See more FAQs

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.
See more tips

Top 5 airlines serving 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.
8.0
DeltaOverall score based on 10295 reviews
7.4Food
8.6Crew
8.2Boarding
7.9Comfort
8.0Entertainment
Airline reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

2.0 MediocreCraig, Jun 2024CVG - LGA
Read more about Delta reviews

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Missed this flight due to the first AA flight delay

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

They canceled our flight last minute and we had to get another flight with twice the cost

Seats were terribly uncomfortable! Couldn’t sleep! I paid for good seats when scheduled with Lufthansa, got crappy mid-section seats on Air Canada!

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

No refreshments apart from a bottle of water. No pillows. No entertainment. Flight delayed by 52 minutes.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

The seats are much too narrow and the arm rests are hard and awkwardly high, resulting in shoulder cramps. I am an average sized person ( definitely not overweight). The seats are a similar size to car seats with the added discomfort of incorporating hard plastic arm rests, that force average height individuals (I'm 5 ft 7 (f)) to hold their arms uncomfortably for several hours. The seats are much too close to the ones in front and behind making it extremely difficult to allow fellow passengers to get out, especially when the seat in front is declined. The leg room also necessitates knees banging into passengers backs for the entire flight. This used to be a quality airline who now offer mediocre service for premium cost, coupled with charging exorbitant prices for basic needs, like a seat, or luggage. Blatant and unabashed gouging of clients.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

Very bed boarding, there was overbooked and make a lot of problems and noises

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

Book cheap flights from Louisville to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Louisville to London found on KAYAK in the last 72 hours.
9/10Tue
1 stop
18h 58mSDF-LGW
$191
8/27Tue
1 stop
18h 58mSDF-LGW
$359
9/10Tue
2 stops
31h 16mSDF-LGW
$388
8/27Tue
1 stopAmerican Airlines
10h 00mSDF-LHR
$508
8/27Tue
2 stopsAmerican Airlines
15h 24mSDF-LGW
$508
8/27Tue
2 stopsUnited Airlines
21h 00mSDF-LCY
$547
7/12Fri
2 stopsUnited Airlines
17h 25mSDF-LHR
$568
7/12Fri
2 stopsLufthansa
42h 55mSDF-LCY
$782
7/1Mon
2 stopsDelta
14h 40mSDF-LHR
$784
7/1Mon
2 stopsLufthansa
18h 05mSDF-LCY
$870

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Louisville - London Flights

Departure:

Louisville (SDF)United States

Cabin classes: