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Cheap flights from Slovenia to London Heathrow Airport from £60

LJU — LHR
13 Nov — 20 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Slovenia to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Slovenia to Heathrow

Fri 11/1213:45 -
1 stop20h 50m
Mon 14/1209:55 -
1 stop9h 05m
Deal found 12/10£133
Tue 1/1220:45 -
1 stop16h 35m
Mon 7/1213:20 -
1 stop5h 35m
Deal found 9/10£144
Mon 23/1120:45 -
1 stop16h 35m
Mon 30/1113:20 -
1 stop18h 40m
Deal found 9/10£144
Thu 10/1217:10 -
1 stop17h 25m
Sun 13/1209:55 -
1 stop9h 35m
Deal found 13/10£145
Wed 30/1220:45 -
1 stop16h 35m
Sun 3/113:20 -
1 stop18h 40m
Deal found 9/10£146
Fri 11/1213:45 -
1 stop9h 15m
Sun 13/1209:55 -
1 stop9h 35m
Deal found 13/10£152
Sun 6/1220:45 -
1 stop16h 35m
Tue 8/1213:20 -
1 stop18h 40m
Deal found 9/10£153
Mon 23/1112:25 -
1 stop5h 10m
Fri 27/1111:45 -
1 stop23h 25m
Deal found 11/10£155
Thu 3/1212:55 -
1 stop7h 20m
Mon 7/1215:45 -
1 stop19h 35m
Deal found 11/10£158

Find flight deals from Slovenia to Heathrow

Round-trip from

£133

One-way from

£60

Popular in

July

Cheapest in

March

Average price

£171
Vueling
  • Vueling
  • 11/12-14/12
  • 2 total stops
  • 29h 55m total
  • Slovenia to London
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Vueling
  • Vueling
  • 14/12-31/12
  • 1 total stop
  • 24h 20m total
  • Slovenia to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£52 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Slovenia to London Heathrow Airport that are best for you.

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Cheapest return flight

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Sun 11/4

09:25-18:40

1 stop10h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63
Fastest return journey

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Tue 15/12

12:55-16:05

1 stop4h 10m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Tue 8/12

12:55-20:50

1 stop8h 55m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Sat 16/1

13:40-12:05

1 stop23h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Wed 13/1

12:50-07:40

1 stop19h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Thu 8/4

14:00-17:35

1 stop4h 35m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£82

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Mon 23/11

12:25-20:50

2 stops9h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£90

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Sat 9/1

13:40-07:40

1 stop19h 00m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£90

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Fri 13/11

09:30-12:20

1 stop27h 50m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96

LjubljanaLondon

LJU Ljubljana Joze Pucnik - LHR London Heathrow

LJULHR

Ljubljana Joze Pucnik

Mon 12/4

15:15-12:30

1 stop22h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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.
Estimated return price

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 £163). Flying from Slovenia to London Heathrow Airport in July is currently the most expensive (average of £380). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Slovenia to London Heathrow Airport as you normally would.

How often are flights from Slovenia to London delayed?

About 28% of weekly flights between Slovenia and London have experienced delays in the past year, with the average delay time being 118 minutes.

What is the most punctual flight time for Slovenia to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Slovenia to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 28% of flights being delayed.

Related info for your journey

  • How long is the flight from Slovenia to London Heathrow Airport?

    Airlines like Air Serbia fly from Slovenia to London Heathrow Airport in about 16h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 766 mi.

  • Can I find deals for flights from Slovenia to Heathrow that include hotel bookings?

    Yes. In addition to deals on Slovenia to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Slovenia to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Slovenia to Heathrow.

  • Can I find deals for business class flights from Slovenia to Heathrow?

    Yes. Cheapflights offers flight deals from Slovenia to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 £163). Flying from Slovenia to London Heathrow Airport in July is currently the most expensive (average of £380). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Slough
Gatwick
Wembley
Hayes
Ilford
Croydon
Colchester
Northampton
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Slovenia to Heathrow

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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.

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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.

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