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SDF - LON

$261 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 10/2. 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
Sat 6/1
Sat 6/8

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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 43,740,974 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
7:43 am - 10:00 amSDF-LGW
21h 17m1 stop
12:00 pm - 7:52 pmLGW-SDF
36h 52m1 stop
Wed, Oct 2 - Thu, Oct 3
7:43 am - 10:00 amSDF-LGW
21h 17m1 stop
2:00 pm - 11:44 pmLGW-SDF
14h 44m1 stop
Tue, Sep 3 - Tue, Sep 17
2:59 pm - 10:00 amSDF-LGW
14h 01m2 stops
12:00 pm - 11:59 pmLGW-SDF
16h 59m2 stops
$684Delta
Find Deal
Mon, Aug 19 - Tue, Aug 27
2:59 pm - 10:00 amSDF-LGW
14h 01m2 stops
12:00 pm - 11:59 pmLGW-SDF
16h 59m2 stops
$685Delta
Find Deal
Mon, Aug 19 - Tue, Aug 27
6:00 am - 6:45 amSDF-LHR
19h 45m1 stop
9:30 am - 12:17 pmLHR-SDF
31h 47m2 stops
$704United Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
3:07 pm - 12:10 pmSDF-LHR
16h 03m1 stop
12:15 pm - 12:30 amLHR-SDF
17h 15m1 stop
$713American Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
10:30 am - 6:45 amSDF-LHR
15h 15m2 stops
8:40 am - 8:18 pmLHR-SDF
16h 38m2 stops
$714United Airlines
Find Deal
Mon, Aug 19 - Tue, Aug 27
3:07 pm - 12:10 pmSDF-LHR
16h 03m1 stop
3:15 pm - 11:47 pmLHR-SDF
13h 32m1 stop
$781American Airlines
Find Deal
Tue, Sep 3 - Tue, Sep 17
6:54 pm - 10:20 amSDF-LHR
10h 26m1 stop
2:25 pm - 9:08 pmLHR-SDF
11h 43m1 stop
$785British Airways
Find Deal
Mon, Sep 2 - Wed, Sep 11
3:39 pm - 12:15 pmSDF-LHR
15h 36m1 stop
7:25 pm - 9:08 pmLHR-SDF
30h 43m2 stops
$802British Airways
Find Deal
Wed, Sep 11 - Tue, Sep 17

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, Wednesday 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 $770 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,412 and $1,362 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 44 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 ($571) and American Airlines ($583). The cheapest round-trip tickets were found on Delta ($684) and United Airlines ($704).

Good to know

Low season

February

High season

May

Cheapest flight

$261
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 6% 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 $261 for a one-way ticket and $587 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, SkyTeam, and Star Alliance 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 $819 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 10858 reviews
8.2Boarding
7.9Comfort
8.6Crew
8.0Entertainment
7.4Food
Airline reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

8.0 ExcellentAnonymous, May 2024ATL - ATW
Read more about Delta reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff were fantastic friendly nice they came round and check we need anything else to eat or drink

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Food was terrible Not many options Stewards dont care Delay

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

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.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Flight from Phoenix to London was very quiet. Excellent space available for comfort, couldn't fault

Food was very average. And top up drinks offer was absent. For a 11 hour long flight that should be the minimum. The crew didn't want to be there. I understand it was new year day but given they had signed up for it

It was my fault choosing the seat nearest the entrance but it was ok.

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Leg room was better than expected. Lavatory’s were easy to access.crew was grea!

Horrible seat allocation. Boarding was slow. Food was average and so was entertainment. The TV terminal didn't work and so had to use remote.

Lost one checked bag.and wasted 30min waiting and filing missing baggage report. Very unsatisfied.

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.
10/2Wed
1 stop
21h 17mSDF-LGW
$261
9/3Tue
1 stop
21h 17mSDF-LGW
$290
9/3Tue
2 stopsAmerican Airlines
14h 09mSDF-LHR
$583
8/27Tue
2 stopsDelta
16h 20mSDF-LGW
$584
10/2Wed
2 stopsVirgin Atlantic
14h 01mSDF-LGW
$587
8/17Sat
1 stopAmerican Airlines
31h 55mSDF-LHR
$595
7/13Sat
2 stopsDelta
14h 26mSDF-LHR
$634
10/10Thu
1 stopVirgin Atlantic
11h 51mSDF-LHR
$637
9/3Tue
2 stopsLufthansa
20h 56mSDF-LCY
$672
8/17Sat
2 stopsLufthansa
18h 55mSDF-LCY
$713

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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.
5/4Sat
multi-stop
37h 28mSDF-LGW
5/10Fri
multi-stop
33h 51mLGW-SDF
$745
5/3Fri
multi-stop
21h 17mSDF-LGW
5/10Fri
multi-stop
33h 51mLGW-SDF
$766
5/4Sat
multi-stop
37h 28mSDF-LGW
5/7Tue
multi-stop
14h 41mLGW-SDF
$783
5/7Tue
multi-stopDelta
16h 23mSDF-LGW
6/7Fri
multi-stopDelta
17h 13mLGW-SDF
$1,149
5/7Tue
multi-stopDelta
11h 19mSDF-LHR
6/7Fri
multi-stopDelta
17h 30mLHR-SDF
$1,173
5/7Tue
multi-stopAmerican Airlines
10h 04mSDF-LHR
6/7Fri
multi-stopAmerican Airlines
16h 37mLHR-SDF
$1,177
5/7Tue
multi-stopAmerican Airlines
15h 01mSDF-LHR
5/14Tue
multi-stopAmerican Airlines
12h 14mLHR-SDF
$1,184
5/6Mon
multi-stopBritish Airways
14h 04mSDF-LHR
5/13Mon
multi-stopBritish Airways
29h 40mLHR-SDF
$1,197
5/6Mon
multi-stopBritish Airways
33h 47mSDF-LGW
5/13Mon
multi-stopBritish Airways
29h 10mLGW-SDF
$1,228
5/7Tue
multi-stopUnited Airlines
18h 20mSDF-LHR
5/14Tue
multi-stopUnited Airlines
18h 33mLHR-SDF
$8,435

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Louisville - London Flights

Departure:

Louisville (SDF)United States

Cabin classes: