Cheap Flights from London (LHR) to Sliac (SLD)

Popular airlines from Heathrow Airport (LHR) to Sliac (SLD)

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Flights from London (LHR) to Sliac (SLD)
Origin airport
Heathrow
Destination airport
Sliac
Distance
887 mi

London to Sliac Flights

The cheapest times to fly from London to Sliac

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Sliac are during the month of . You can find some of the cheapest flights from London to Sliac with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Sliac

Sunday is one of the best days to book for cheap flights from London to Sliac: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Sliac

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Sliac in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Sliac flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Sliac airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Sliac Airport (SLD) cost?
Discover the latest flight deals from LHR to SLD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from LHR to SLD?
The cheapest flights from LHR to SLD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from LHR to SLD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from LHR to SLD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Heathrow Airport (LHR) to Sliac Airport (SLD)?
You'll have to catch a flight with a layover when traveling from Heathrow Airport (LHR) to Sliac Airport (SLD). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from LHR to SLD?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Heathrow Airport (LHR) to Sliac Airport (SLD)?
To avoid potential delays on the Heathrow Airport (LHR) to Sliac Airport (SLD) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Sliac Airport (SLD) last-minute?
Last-minute fares from LHR to SLD are usually more expensive. For the best rates, start looking for flights ahead of time. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before your trip.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Sliac Airport (SLD)?
If you booked your LHR to SLD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.