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SDF - LON

$215 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 7/18. 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
Mon 7/1
Mon 7/8

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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 42,787,818 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Louisville to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Louisville to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Louisville to London.

Recent one-way flight deals from Louisville to London

Only flying one-way? Below are some of the best one-way flight deals from Louisville to London found on KAYAK recently.

Recent last minute flight deals from Louisville to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Louisville to London.

Recent direct flight deals from Louisville to London

The latest deals for direct flights from Louisville to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Louisville to London

Find recent round-trip train or bus tickets from Louisville to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:43 am - 10:00 amSDF-LGW
21h 17m1 stop
2:00 pm - 11:44 pmLGW-SDF
14h 44m1 stop
Wed, Oct 2 - Wed, Oct 9
12:40 pm - 10:00 amSDF-LGW
16h 20m2 stops
12:00 pm - 10:53 pmLGW-SDF
15h 53m2 stops
$616Delta
Find Deal
Tue, Oct 1 - Fri, Oct 11
6:00 am - 10:10 pmSDF-LHR
11h 10m1 stop
7:15 pm - 3:50 pmLHR-SDF
25h 35m2 stops
$628British Airways
Find Deal
Tue, Sep 24 - Mon, Oct 14
10:50 am - 6:30 amSDF-LHR
14h 40m2 stops
12:05 pm - 12:23 pmLHR-SDF
29h 18m2 stops
$631United Airlines
Find Deal
Tue, Oct 1 - Fri, Oct 11
6:56 pm - 10:20 amSDF-LHR
10h 24m1 stop
6:55 am - 10:07 pmLHR-SDF
20h 12m2 stops
$632British Airways
Find Deal
Sun, Sep 29 - Wed, Oct 16
8:17 pm - 12:10 pmSDF-LHR
10h 53m1 stop
9:35 am - 4:56 pmLHR-SDF
12h 21m1 stop
$646American Airlines
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Sun, Sep 29 - Wed, Oct 16
3:37 pm - 12:10 pmSDF-LHR
15h 33m1 stop
8:40 am - 5:34 pmLHR-SDF
13h 54m1 stop
$647American Airlines
Find Deal
Tue, Oct 1 - Fri, Oct 11
2:29 pm - 6:45 amSDF-LHR
11h 16m1 stop
2:05 pm - 1:13 pmLHR-SDF
28h 08m2 stops
$661United Airlines
Find Deal
Tue, Aug 20 - Tue, Aug 27
2:40 pm - 9:25 amSDF-LCY
14h 45m2 stops
10:00 am - 10:18 pmLCY-SDF
17h 18m2 stops
$727Lufthansa
Find Deal
Tue, Oct 29 - Fri, Nov 8
9:48 am - 7:15 amSDF-LCY
16h 27m2 stops
7:10 pm - 8:46 pmLCY-SDF
30h 36m2 stops
$752Lufthansa
Find Deal
Tue, Sep 24 - Mon, Oct 14
7:30 am - 10:00 amSDF-LGW
21h 30m1 stop
Thu, Jul 18
7:30 am - 10:00 amSDF-LGW
21h 30m1 stop
Thu, Jul 18
7:43 am - 10:00 amSDF-LGW
21h 17m1 stop
Tue, Jul 16
11:14 am - 7:50 amSDF-LHR
15h 36m1 stop
$504British Airways
Find Deal
Sun, Jul 14
11:21 am - 9:05 amSDF-LHR
16h 44m1 stop
$507American Airlines
Find Deal
Mon, Jul 15
7:32 am - 6:50 amSDF-LHR
18h 18m2 stops
$508American Airlines
Find Deal
Sun, Aug 18
8:35 pm - 12:40 pmSDF-LHR
35h 05m2 stops
$538British Airways
Find Deal
Sat, Jul 20
10:50 am - 12:30 pmSDF-LCY
20h 40m2 stops
$546United Airlines
Find Deal
Sun, Jul 21
2:20 pm - 5:55 amSDF-LHR
10h 35m1 stop
$608United Airlines
Find Deal
Thu, Aug 15
12:14 pm - 7:15 amSDF-LCY
14h 01m2 stops
$1,012Delta
Find Deal
Thu, Jul 18
2:26 pm - 8:50 amSDF-LCY
13h 24m2 stops
8:40 am - 7:19 pmLCY-SDF
15h 39m2 stops
$5,125Delta
Find Deal
Wed, Jun 5 - Sat, Jun 8

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 Iberia ($495) and British Airways ($504). The cheapest round-trip tickets were found on Delta ($616) and British Airways ($628).

Good to know

Low season

February

High season

March

Cheapest flight

$215
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 $215 for a one-way ticket and $597 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 $824 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 10419 reviews
8.6Crew
7.9Comfort
8.0Entertainment
8.2Boarding
7.4Food
Airline reviews

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

10.0 ExcellentBarb, Jun 2024MSP - JFK
Read more about Delta reviews

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.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Not worth the premium paid for the first class ticket

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

I had a great flight. Everything went smoothly and the flight arrived early.

Well....let's start from the point that I had to stay in airport for 12 hours instead of 2 that was scheduled. Poor company and even worst customer service. Never again....

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

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.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

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.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

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.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

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.
7/18Thu
1 stop
21h 30mSDF-LGW
$215
7/18Thu
1 stop
21h 30mSDF-LGW
$218
7/16Tue
1 stop
21h 17mSDF-LGW
$222
7/14Sun
1 stopBritish Airways
15h 36mSDF-LHR
$504
7/15Mon
1 stopAmerican Airlines
16h 44mSDF-LHR
$507
8/18Sun
2 stopsAmerican Airlines
18h 18mSDF-LHR
$508
7/20Sat
2 stopsBritish Airways
35h 05mSDF-LHR
$538
7/21Sun
2 stopsUnited Airlines
20h 40mSDF-LCY
$546
8/15Thu
1 stopUnited Airlines
10h 35mSDF-LHR
$608
7/18Thu
2 stopsDelta
14h 01mSDF-LCY
$1,012

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Last minute flights from Louisville to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Louisville to London that are departing in the next 10 days.
6/5Wed
multi-stopDelta
13h 24mSDF-LCY
6/8Sat
multi-stopDelta
15h 39mLCY-SDF
$5,125

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Louisville - London Flights

Departure:

Louisville (SDF)United States

Cabin classes: