Cheap flights from London Heathrow Airport to Slovenia from £89
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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Slovenia
Keep the following information in mind while searching for Heathrow to Slovenia flight deals. Data was last updated 3 July 2025.
Round-trip from | £140 |
---|---|
One-way from | £89 |
Popular in | September |
Cheapest in | March |
Average price | £219 |
Good round-trip deal | £287 or less |
Good one-way deal | £180 or less |
Find flight deals from Heathrow to Slovenia
Cheapest flights from Heathrow to SloveniaExplore the most affordable flight options available from Heathrow to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Explore the most affordable flight options available from Heathrow to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Heathrow to Slovenia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Slovenia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Mon 6/10
11:00-14:15
Nonstop2h 15m
Ljubljana Joze Pucnik
Fri 10/10
21:05-22:25
Nonstop2h 20m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Sat 4/10
07:00-10:10
Nonstop2h 10m
Ljubljana Joze Pucnik
Sun 12/10
09:40-18:40
1 stop10h 00m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Sat 4/10
19:55-09:00
1 stop12h 05m
Ljubljana Joze Pucnik
Sun 12/10
09:40-18:40
1 stop10h 00m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Mon 6/10
20:25-09:00
1 stop11h 35m
Ljubljana Joze Pucnik
Mon 13/10
13:20-19:40
1 stop7h 20m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Tue 26/8
11:05-17:45
1 stop5h 40m
Ljubljana Joze Pucnik
Thu 4/9
18:35-21:35
1 stop4h 00m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Fri 12/9
08:40-08:15
1 stop22h 35m
Ljubljana Joze Pucnik
Sat 20/9
09:10-21:45
1 stop13h 35m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Wed 17/9
13:30-09:00
1 stop18h 30m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Mon 15/9
20:55-08:15
1 stop10h 20m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Wed 27/8
14:00-17:15
Nonstop2h 15m
LondonLjubljana
LHR - LJU
LHRLJU
London Heathrow
Wed 1/10
07:25-12:40
1 stop4h 15m
Best time to book a flight from Heathrow to Slovenia
Have a flexible travel schedule? Discover the best time to fly to Slovenia from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Slovenia
What is the cheapest month to book a flight from London Heathrow Airport to Slovenia?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Slovenia (average of £103). Flying from London Heathrow Airport to Slovenia in July is currently the most expensive (average of £327). 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 LHR to SI?
Find hourly flight availability from Heathrow to Slovenia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 July 2025.
One of the essential ways to save on airfare from London Heathrow Airport to Slovenia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 16% on airfare.
Reviews of airlines servicing Slovenia
Get insights into the airlines that provide service to Slovenia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Slovenia. Reviews last updated 3 July 2025.
Check out reviews from past customers who have flown with KLM, SWISS, andBrussels Airlines from London Heathrow Airport to Slovenia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Anonymous,Jun 2025
AMS - BOS
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Slovenia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Heathrow to Slovenia
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Heathrow to Slovenia
Discover the top 6 airlines that operate flights from Heathrow to Slovenia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 July 2025.
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How does Cheapflights help users find flights from Heathrow to Slovenia?
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Why should you use Cheapflights to find cheap flight tickets from Heathrow to Slovenia?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Slovenia for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Heathrow to Slovenia with no change fees?
Certainly. Search results for flights to Slovenia from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Heathrow to Slovenia become cheaper?
Not ready to book yet? You can track prices for flights from Heathrow to Slovenia on Cheapflights with our Price Alert feature and get notified when better prices are available.