What are the cheapest airlines to fly from Slovenia to London Heathrow Airport one-way?

£59 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on British Airways and Eurowings, with prices starting from £69 and £82, respectively.

What is the cheapest day to fly from Slovenia to London Heathrow Airport?

Travellers seeking maximum savings on their Slovenia to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

While on average a flight from Slovenia to London Heathrow Airport is generally £142, our data shows the cheapest flight currently is £98. When looking at the most popular route, (Ljubljana Joze Pucnik - London Heathrow), you can expect to pay £143 for that flight.

What is the cheapest day to fly round-trip from Slovenia to London Heathrow Airport?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 119% when planning your travel around this day of the week.

How far in advance should I book a flight from Slovenia to London Heathrow Airport?

Users have found that booking a flight from Slovenia to London Heathrow Airport at least 53 days early can save you up to 109% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from Slovenia to London Heathrow Airport for as little as £168 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £291 for flights departing within the next 3 days.

What is the cheapest month to fly from Slovenia to London Heathrow Airport?

Our data shows that March tends to be the cheapest month to fly to London Heathrow Airport from Slovenia. Users have commonly found prices around £171 for the month, but tickets can be as low as £57. Due to multiple factors, prepare for potentially higher prices in August.

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.

£482+ Flights from Slovenia to London Heathrow Airport

Cheap flight deals from Slovenia to Heathrow

Round-trip from	£131
One-way from	£59
Popular in	August
Cheapest in	March
Average price	£163
Good round-trip deal	£135 or less
Good one-way deal	£101 or less

Air Serbia
12/10-14/10
2 total stops
28h 15m total
Slovenia to London

Search Deals

Air Serbia
2/5
1 total stop
16h 45m total
Slovenia to London

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (£43 potential increase over avg. return price).

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Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Slovenia to London Heathrow.

Search Deals

Price to beat on a one-way flight from Slovenia to London Heathrow.

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Find flight deals from Slovenia to Heathrow

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 18 April 2025.

Sun 12/1009:50LJU - LHR

1 stop9h 50mAir Serbia

Tue 14/1013:30LHR - LJU

1 stop18h 25mAir Serbia

Deal found 17/4£131

Thu 12/610:50LJU - LHR

1 stop11h 55mSWISS

Mon 16/618:40LHR - LJU

1 stop14h 25mSWISS

Deal found 17/4£160

Mon 2/620:00LJU - LHR

1 stop13h 15mMultiple Airlines

Mon 9/608:40LHR - LJU

1 stop24h 25mMultiple Airlines

Deal found 18/4£165

Thu 25/913:55LJU - LHR

1 stop4h 45mLufthansa

Sat 27/907:25LHR - LJU

1 stop11h 00mLufthansa

Deal found 17/4£169

Sat 27/917:10LJU - LHR

1 stop4h 45mBrussels Airlines

Mon 29/917:50LHR - LJU

1 stop22h 55mBrussels Airlines

Deal found 17/4£171

Thu 12/609:10LJU - LHR

1 stop5h 40mKLM

Mon 16/617:10LHR - LJU

1 stop14h 10mKLM

Deal found 18/4£203

Fri 2/521:05LJU - LHR

Nonstop2h 20mBritish Airways

Sat 3/507:00LHR - LJU

Nonstop2h 10mBritish Airways

Deal found 17/4£204

Tue 1/717:05LJU - LHR

1 stop17h 15mLOT

Fri 4/706:30LHR - LJU

1 stop8h 50mLOT

Deal found 17/4£211

Best flights from Slovenia to Heathrow
Discover carefully curated flight deals from Slovenia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 April 2025.

Sun 12/1009:50LJU - LHR

1 stop9h 50mAir Serbia

Tue 14/1013:30LHR - LJU

1 stop18h 25mAir Serbia

Deal found 17/4£131

Thu 12/610:50LJU - LHR

1 stop11h 55mSWISS

Mon 16/618:40LHR - LJU

1 stop14h 25mSWISS

Deal found 17/4£160

Mon 2/620:00LJU - LHR

1 stop13h 15mMultiple Airlines

Mon 9/608:40LHR - LJU

1 stop24h 25mMultiple Airlines

Deal found 18/4£165

Thu 25/913:55LJU - LHR

1 stop4h 45mLufthansa

Sat 27/907:25LHR - LJU

1 stop11h 00mLufthansa

Deal found 17/4£169

Sat 27/917:10LJU - LHR

1 stop4h 45mBrussels Airlines

Mon 29/917:50LHR - LJU

1 stop22h 55mBrussels Airlines

Deal found 17/4£171

Thu 12/609:10LJU - LHR

1 stop5h 40mKLM

Mon 16/617:10LHR - LJU

1 stop14h 10mKLM

Deal found 18/4£203

Fri 2/521:05LJU - LHR

Nonstop2h 20mBritish Airways

Sat 3/507:00LHR - LJU

Nonstop2h 10mBritish Airways

Deal found 17/4£204

Tue 1/717:05LJU - LHR

1 stop17h 15mLOT

Fri 4/706:30LHR - LJU

1 stop8h 50mLOT

Deal found 17/4£211

Fri 23/513:20LJU - LHR

2 stops9h 20mScandinavian Airlines

Mon 26/519:30LHR - LJU

2 stops19h 50mScandinavian Airlines

Deal found 18/4£5,918

Last-minute flights from Slovenia to Heathrow
Discover last-minute flight deals from Slovenia to Heathrow. Data last updated 18 April 2025 and is based on user searches.

Fri 18/413:25LJU - LHR

1 stop9h 35mLOT

Sun 20/418:10LHR - LJU

1 stop17h 25mLOT

Deal found 17/4£248

Thu 24/410:10LJU - LHR

1 stop11h 30mLufthansa

Sun 27/407:25LHR - LJU

1 stop10h 55mLufthansa

Deal found 17/4£230

Thu 1/513:20LJU - LHR

1 stop7h 20mLufthansa

Sat 3/517:50LHR - LJU

1 stop14h 10mLufthansa

Deal found 17/4£190

Fri 2/521:05LJU - LHR

Nonstop2h 20mMultiple Airlines

Wed 7/517:35LHR - LJU

1 stop24h 30mMultiple Airlines

Deal found 17/4£174

Fri 2/509:50LJU - LHR

1 stop27h 40mAir Serbia

Mon 5/513:30LHR - LJU

1 stop18h 25mAir Serbia

Deal found 17/4£181

Fri 2/521:05LJU - LHR

Nonstop2h 20mBritish Airways

Sat 3/507:00LHR - LJU

Nonstop2h 10mBritish Airways

Deal found 17/4£204

Wed 7/512:20LJU - LHR

2 stops28h 55mKLM

Fri 9/520:55LHR - LJU

2 stops13h 40mKLM

Deal found 17/4£341

Fri 23/510:50LJU - LHR

1 stop11h 55mSWISS

Mon 26/506:00LHR - LJU

1 stop11h 35mSWISS

Deal found 18/4£161

Fri 23/513:20LJU - LHR

2 stops9h 20mScandinavian Airlines

Mon 26/519:30LHR - LJU

2 stops19h 50mScandinavian Airlines

Deal found 18/4£5,918

One-way flights from Slovenia to Heathrow
Search for one-way flight options from Slovenia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 18 April 2025.

Fri 2/520:45LJU - LHR

1 stop16h 45mAir Serbia

Deal found 17/4£59

Fri 2/521:05LJU - LHR

Nonstop2h 20mBritish Airways

Deal found 17/4£69

Tue 13/515:05LJU - LHR

1 stop26h 20mEurowings

Deal found 17/4£82

Tue 2/912:35LJU - LHR

1 stop20h 05mKLM

Deal found 17/4£88

Sat 30/817:10LJU - LHR

1 stop4h 45mBrussels Airlines

Deal found 17/4£115

Fri 2/514:55LJU - LHR

2 stops8h 45mMultiple Airlines

Deal found 17/4£118

Mon 16/610:50LJU - LHR

1 stop11h 55mSWISS

Deal found 18/4£119

Mon 1/910:15LJU - LHR

1 stop7h 25mLufthansa

Deal found 17/4£121

Sun 31/813:20LJU - LHR

1 stop5h 00mLOT

Deal found 17/4£159

Sun 27/414:55LJU - LHR

2 stops26h 50mBulgaria Air

Deal found 17/4£275

Sat 24/509:50LJU - LHR

3 stops35h 30mQatar Airways

Deal found 17/4£808

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

Sun 12/10

09:50-18:40

1 stop9h 50m

London Heathrow

Tue 14/10

13:30-08:55

1 stop18h 25m

£131

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 12/6

10:50-21:45

1 stop11h 55m

London Heathrow

Mon 16/6

18:40-10:05

1 stop14h 25m

£160

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Mon 2/6

20:00-08:15

1 stop13h 15m

London Heathrow

Mon 9/6

08:40-10:05

1 stop24h 25m

£165

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 25/9

13:55-17:40

1 stop4h 45m

London Heathrow

Sat 27/9

07:25-19:25

1 stop11h 00m

£169

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Sat 27/9

17:10-20:55

1 stop4h 45m

London Heathrow

Mon 29/9

17:50-17:45

1 stop22h 55m

£171

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Thu 12/6

09:10-13:50

1 stop5h 40m

London Heathrow

Mon 16/6

17:10-08:20

1 stop14h 10m

£203

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 2/5

21:05-22:25

Nonstop2h 20m

London Heathrow

Sat 3/5

07:00-10:10

Nonstop2h 10m

£204

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Tue 1/7

17:05-09:20

1 stop17h 15m

London Heathrow

Fri 4/7

06:30-16:20

1 stop8h 50m

£211

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 23/5

13:20-21:40

2 stops9h 20m

London Heathrow

Mon 26/5

19:30-16:20

2 stops19h 50m

£5,918

LjubljanaLondon

LJU - LHR

LJULHR

Ljubljana Joze Pucnik

Fri 2/5

20:45-12:30

1 stop16h 45m

£59

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 20 results

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, January is the cheapest month in which you can book a flight from Slovenia to London Heathrow Airport (average of £112). Flying from Slovenia to London Heathrow Airport in August is currently the most expensive (average of £164). 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?

It’s typically best to fly out from Slovenia to London Heathrow Airport at midday. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

KLM

7.8

Good

1,329 reviews

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

LOT

7.6

Good

1,065 reviews

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

SWISS

7.5

Good

1,581 reviews

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Qatar Airways

7.4

Good

3,554 reviews

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Scandinavian Airlines

7.3

Good

1,336 reviews

KLM

7.8

Good

1,329 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Related info for your journey

What are the cheapest airlines to fly from Slovenia to London Heathrow Airport one-way?
£59 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on British Airways and Eurowings, with prices starting from £69 and £82, respectively.
What are the cheapest flights from Slovenia to London Heathrow Airport?
While on average a flight from Slovenia to London Heathrow Airport is generally £142, our data shows the cheapest flight currently is £98. When looking at the most popular route, (Ljubljana Joze Pucnik - London Heathrow), you can expect to pay £143 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, January is the cheapest month in which you can book a flight from Slovenia to London Heathrow Airport (average of £112). Flying from Slovenia to London Heathrow Airport in August is currently the most expensive (average of £164). 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

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Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Wembley

Northampton

Hayes

Crawley

Southend-on-Sea

Maidstone

Swindon

Ipswich

Southall

Ilford

Winchester

Folkestone

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Fly with Cheapflights

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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Cheap flights from Slovenia to London Heathrow Airport from £59

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 2/5. 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 18 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 18 April 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 18 April 2025.

Cheapflights Fare Finder

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

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?

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 18 April 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

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.

What are the cheapest airlines to fly from Slovenia to London Heathrow Airport one-way?

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

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

How can I find direct flights from Slovenia to Heathrow?

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

What is the cheapest month to book a flight from Slovenia to London Heathrow Airport?

Travelling to a place near Slovenia?

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.

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?

Why should you use Cheapflights to find cheap flight tickets from Slovenia to Heathrow?

Can Cheapflights find flights from Slovenia to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Slovenia to Heathrow become cheaper?

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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 18 April 2025.