SDF - LHR

£321 Find Cheap Flights from Louisville to London Heathrow Airport

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 Heathrow departing on 5/5. 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

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

 
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
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Cheap Flight Deals from Louisville to Heathrow (SDF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Louisville to Heathrow 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.

Recent return flight deals from Louisville to Heathrow

KAYAK's recommended return flight deals from the most popular airlines that fly from Louisville to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Delta Logo
11:08 - 07:15SDF-LHR
15h 07m1 stop
Delta Logo
06:30 - 17:10LHR-SDF
15h 40m2 stops
£542Delta
Find Deal
Tue, 6 May - Thu, 22 May
Delta Logo
14:41 - 08:50SDF-LHR
13h 09m2 stops
Delta Logo
06:30 - 17:10LHR-SDF
15h 40m2 stops
£545Delta
Find Deal
Tue, 6 May - Thu, 22 May
KLM Logo
18:00 - 08:55SDF-LHR
9h 55m1 stop
KLM Logo
13:05 - 20:36LHR-SDF
12h 31m1 stop
£552KLM
Find Deal
Tue, 6 May - Thu, 22 May
 Logo
07:00 - 06:30SDF-LHR
18h 30m2 stops
 Logo
09:30 - 21:38LHR-SDF
17h 08m2 stops
Fri, 2 May - Wed, 14 May
 Logo
14:34 - 06:30SDF-LHR
34h 56m2 stops
 Logo
13:45 - 09:00LHR-SDF
24h 15m2 stops
Thu, 1 May - Thu, 8 May
Virgin Atlantic Logo
12:55 - 13:30SDF-LHR
19h 35m1 stop
Virgin Atlantic Logo
11:45 - 21:26LHR-SDF
14h 41m1 stop
£612Virgin Atlantic
Find Deal
Fri, 2 May - Sun, 11 May
KLM Logo
18:56 - 13:10SDF-LHR
13h 14m1 stop
KLM Logo
11:45 - 21:20LHR-SDF
14h 35m1 stop
£737KLM
Find Deal
Mon, 2 Jun - Wed, 11 Jun
American Airlines Logo
16:36 - 07:50SDF-LHR
10h 14m1 stop
American Airlines Logo
13:30 - 21:56LHR-SDF
13h 26m1 stop
£775American Airlines
Find Deal
Wed, 21 May - Mon, 26 May
American Airlines Logo
15:45 - 07:05SDF-LHR
10h 20m1 stop
American Airlines Logo
15:00 - 22:17LHR-SDF
12h 17m1 stop
£783American Airlines
Find Deal
Sun, 8 Jun - Sun, 15 Jun
Virgin Atlantic Logo
10:43 - 06:45SDF-LHR
15h 02m2 stops
Virgin Atlantic Logo
10:55 - 22:49LHR-SDF
16h 54m2 stops
£982Virgin Atlantic
Find Deal
Wed, 25 Jun - Sat, 5 Jul

KAYAK's insights & trends for Louisville to Heathrow flights

Get data-powered insights and trends into flights from Louisville to Heathrow 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 Heathrow Airport?

The average price of all round-trip flights from Louisville to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Louisville to London Heathrow Airport, look for departures on Sundays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from London Heathrow Airport, Tuesday is the cheapest day to fly and Friday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to London Heathrow Airport, 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 Heathrow Airport is February, where tickets cost £560 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is £892 and £883 respectively.

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

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 Heathrow Airport, 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 Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know - Cheap tickets from Louisville to London Heathrow Airport

Low season

February

High season

May

Cheapest flight

£321
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from Louisville to London Heathrow Airport

When to book flights from Louisville to Heathrow

Are your dates flexible? Find out the best times to travel from Louisville to Heathrow 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 Louisville to London Heathrow Airport flights

  • What is the cheapest flight from Louisville to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Louisville to London Heathrow Airport was £425 for a one-way ticket and £718 for a return.

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

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

  • Which airline alliances offer flights from Louisville to London Heathrow Airport?

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

  • Which is the best airline for flights from Louisville to London, Virgin Atlantic or American Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to London are Virgin Atlantic and American Airlines. With an average price for the route of £774 and an overall rating of 7.4, Virgin Atlantic is the most popular choice. American Airlines is also a great choice for the route, with an average price of £848 and an overall rating of 7.2.

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

    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 Heathrow Airport.

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

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

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

    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 Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport 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 airlines flying from Louisville to Heathrow

 
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 Heathrow? 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.
7.4
Virgin AtlanticOverall score based on 642 reviews
7.6Boarding
8.1Crew
6.9Food
7.5Entertainment
7.2Comfort
Airline reviews

I did not fly by vergin atlantic from bangalore to vasco da gama

2.0 MediocreAnthony, Apr 2025BLR - GOI
Read more Virgin Atlantic reviews

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

British Airways staff are very polite and willing to help.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

The boarding process was a nightmare and though we were traveling business class, we were in Group 2 and the organization was terrible. The Business Class on this flight was crowded and did not feel clean and nice. Overall, I would not travel Business again on the American Airline flight through British Airways Not nearly special enough for the considerable cost .

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

3 hour delay on run way, not even a drink offered, staff seemed rude and rushed, felt unwell so asked twice for paracetamol and was told to wait, never got it

not enough crew for business class and not great service as a result. underwhelmed overall

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

Information on your arrival and departure airports

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