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Cheap flights from Slovenia to London Heathrow Airport from £69

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
LJU — LHR
3 May — 10 May1
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
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 3 April 2026.

Thu 4/620:40
LJU
-
LHR
1 stop16h 50m
Air Serbia
Sun 7/619:25
LHR
-
LJU
1 stop12h 25m
Air Serbia
Deal found 1/4£153
Fri 17/421:15
LJU
-
LHR
Nonstop2h 20m
British Airways
Mon 20/411:00
LHR
-
LJU
Nonstop2h 15m
British Airways
Deal found 31/3£167
Wed 3/620:40
LJU
-
LHR
1 stop16h 50m
Air Serbia
Sun 7/619:25
LHR
-
LJU
1 stop18h 20m
Air Serbia
Deal found 2/4£169
Fri 17/421:15
LJU
-
LHR
Nonstop2h 20m
British Airways
Sun 19/417:15
LHR
-
LJU
Nonstop2h 20m
British Airways
Deal found 2/4£171
Sat 24/1009:25
LJU
-
LHR
1 stop10h 40m
Air Serbia
Fri 30/1013:20
LHR
-
LJU
1 stop18h 35m
Air Serbia
Deal found 30/3£172
Wed 3/620:40
LJU
-
LHR
1 stop16h 50m
Air Serbia
Tue 9/613:30
LHR
-
LJU
1 stop18h 20m
Air Serbia
Deal found 3/4£173
Tue 26/520:40
LJU
-
LHR
1 stop16h 50m
Air Serbia
Mon 1/613:30
LHR
-
LJU
1 stop18h 20m
Air Serbia
Deal found 3/4£179
Tue 2/609:25
LJU
-
LHR
1 stop28h 05m
Air Serbia
Sat 6/613:30
LHR
-
LJU
1 stop18h 20m
Air Serbia
Deal found 1/4£184
Fri 22/520:40
LJU
-
LHR
1 stop23h 25m
Air Serbia
Sun 24/519:25
LHR
-
LJU
1 stop12h 25m
Air Serbia
Deal found 1/4£185
Mon 26/1020:45
LJU
-
LHR
1 stop16h 35m
Air Serbia
Sun 1/1113:20
LHR
-
LJU
1 stop18h 35m
Air Serbia
Deal found 30/3£186
Wed 14/1018:00
LJU
-
LHR
Nonstop2h 20m
British Airways
Sat 17/1007:35
LHR
-
LJU
Nonstop2h 10m
British Airways
Deal found 1/4£189

Find flight deals from Slovenia to Heathrow

Keep the following information in mind while searching for Slovenia to Heathrow flight deals. Data was last updated 3 April 2026.

Round-trip from

£153

One-way from

£69

Popular in

July

Cheapest in

March

Average price

£160

Good one-way deal

£109 or less
Air Serbia
  • Air Serbia
  • 4/6-7/6
  • 2 total stops
  • 29h 15m total
  • Slovenia to London
Search Deals
Air Serbia
  • Air Serbia
  • 19/5
  • 1 total stop
  • 16h 50m total
  • Slovenia to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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Price to beat on a one-way flight from Slovenia to London Heathrow.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Slovenia to Heathrow 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 April 2026.
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

Cheapest return flight

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 3/6

20:40-12:30

1 stop16h 50m

London Heathrow

Tue 9/6

13:30-08:50

1 stop18h 20m

£173

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 9/7

09:25-12:30

1 stop28h 05m

London Heathrow

Sun 12/7

19:25-20:05

1 stop23h 40m

£191

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sun 21/6

09:25-12:30

1 stop28h 05m

London Heathrow

Mon 29/6

13:30-08:50

1 stop18h 20m

£204

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Mon 4/5

15:15-12:30

1 stop22h 15m

London Heathrow

Sat 9/5

19:55-14:25

1 stop17h 30m

£206
Fastest return journey

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 4/6

19:40-09:10

1 stop14h 30m

London Heathrow

Sun 7/6

06:30-12:45

1 stop5h 15m

£215

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sat 25/7

09:25-19:05

1 stop10h 40m

London Heathrow

Sun 26/7

19:25-20:05

1 stop23h 40m

£218

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 21/5

20:40-12:30

1 stop16h 50m

London Heathrow

Sun 24/5

19:25-20:05

1 stop23h 40m

£218

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Mon 14/9

15:15-12:30

1 stop22h 15m

London Heathrow

Fri 18/9

13:30-20:05

1 stop5h 35m

£218

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Wed 22/7

09:25-12:30

1 stop28h 05m

London Heathrow

Wed 29/7

13:30-08:50

1 stop18h 20m

£222

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 30/4

09:25-12:30

1 stop28h 05m

London Heathrow

Sun 3/5

19:25-08:50

1 stop12h 25m

£226

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 20 resultsSorted by cheapest first
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 £98). Flying from Slovenia to London Heathrow Airport in July is currently the most expensive (average of £244). 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.

How often are flights from Slovenia to London delayed?

About 22% of weekly flights between Slovenia and London have experienced delays in the past year, with the average delay time being 112 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?

Tuesday tends to have the lowest number of delays on this route, whereas Monday 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 22% of flights being delayed.

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.

  • 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 50m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 766 mi.

  • What are the cheapest flights from Slovenia to London Heathrow Airport?

    While on average a flight from Slovenia to London Heathrow Airport is generally £151, our data shows the cheapest flight currently is £81. When looking at the most popular route, (Ljubljana Joze Pucnik - London Heathrow), you can expect to pay £171 for that flight.

  • 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 £98). Flying from Slovenia to London Heathrow Airport in July is currently the most expensive (average of £244). 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
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Bedford
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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Vienna to London City flights
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Beauvais-Tille to Gatwick flights
Madrid to Heathrow flights
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Duesseldorf Intl to London City flights
Frederic Chopin to Stansted flights
Bruxelles-National to Stansted flights
Bruxelles-National to Luton flights
Vienna to Luton flights
Barcelona-El Prat to Luton flights
Amsterdam to London City flights
Naples to Gatwick flights
Marseille to Gatwick flights
Barcelona-El Prat to Gatwick flights
Munich to Heathrow flights
Lyon to Gatwick flights
Orly to Luton flights
Frederic Chopin to Gatwick flights
Frankfurt to Gatwick flights
Dublin to Heathrow flights
Lyon to Luton flights
Madrid to London City flights
Zurich to Gatwick flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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