Cheap flights from Slovenia to London Heathrow Airport from £60
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Slovenia to Heathrow
Keep the following information in mind while searching for Slovenia to Heathrow flight deals. Data was last updated 22 October 2025.
Find flight deals from Slovenia to Heathrow
Cheapest flights from Slovenia to HeathrowExplore the most affordable flight options available from Slovenia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.
Explore the most affordable flight options available from Slovenia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Slovenia to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Thu 11/12
14:25-21:40
1 stop8h 15m
London Heathrow
Sun 14/12
06:00-22:30
1 stop15h 30m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Wed 28/1
13:40-21:20
1 stop8h 40m
London Heathrow
Sun 1/2
12:05-22:30
1 stop9h 25m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Sat 7/3
12:50-17:00
1 stop5h 10m
London Heathrow
Wed 11/3
06:30-12:20
1 stop4h 50m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Mon 22/12
13:40-21:20
1 stop8h 40m
London Heathrow
Thu 1/1
20:05-13:35
1 stop16h 30m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Fri 16/1
13:40-17:05
1 stop4h 25m
London Heathrow
Wed 21/1
06:50-12:55
1 stop5h 05m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Mon 12/1
15:10-08:05
1 stop17h 55m
London Heathrow
Sat 17/1
09:00-14:00
1 stop4h 00m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Mon 12/1
13:40-17:05
1 stop4h 25m
London Heathrow
Sun 18/1
06:50-12:55
1 stop5h 05m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Thu 4/12
14:25-19:15
1 stop5h 50m
London Heathrow
Sat 6/12
20:05-13:40
1 stop16h 35m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Wed 26/11
13:40-21:20
1 stop8h 40m
London Heathrow
Tue 2/12
06:50-12:55
1 stop5h 05m
LjubljanaLondon
LJU - LHR
LJULHR
Ljubljana Joze Pucnik
Wed 26/11
14:55-17:50
1 stop3h 55m
London Heathrow
Wed 3/12
17:10-22:25
1 stop4h 15m
Best time to book a flight from Slovenia to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Slovenia with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Slovenia to London Heathrow Airport
What is the cheapest month to book a flight from Slovenia to London Heathrow Airport?
Currently, March is the cheapest month in which you can book a flight from Slovenia to London Heathrow Airport (average of £93). Flying from Slovenia to London Heathrow Airport in September is currently the most expensive (average of £247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SI to LHR?
Find hourly flight availability from Slovenia to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 October 2025.
It’s typically best to fly out from Slovenia to London Heathrow Airport in the afternoon. Doing so could potentially save you 68% on the flight price compared to flying in the evening, which is usually more expensive.
Related info for your journey
Find useful and relevant information for your journey from Slovenia to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near London Heathrow Airport?
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Alternative routes for Slovenia to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Slovenia to Heathrow?
Cheapflights makes it easy to find Slovenia to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Slovenia to Heathrow?
Millions of users choose and trust Cheapflights to book the best flight deals from Slovenia to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Slovenia to Heathrow with no change fees?
Yes! Cheapflights helps users easily find flights from Slovenia to Heathrow with no change fees.
Can Cheapflights notify me if prices for flights from Slovenia to Heathrow become cheaper?
Yes, Cheapflights offers price alerts on Slovenia to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.