Low cost carrier easyJet will temporarily end all operations to Ljubljana at the start of the 2020/2021 winter season, with the carrier to suspend flights from London Gatwick to the Slovenian capital on October 23. It comes after Slovenia was recently removed from the United Kingdom’s air corridor list, effectively becoming off-limits for British travellers. As a result, all passengers arriving from Slovenia to the UK are required to quarantine for fourteen days upon arrival. Furthermore, Slovenia itself has placed the UK on its red list, which requires ten days of quarantine for most arrivals from the country. easyJet previously discontinued flights from Stansted to Ljubljana, due to its base closure, and has also terminated operations from Berlin to the Slovenian capital until the 2021 summer season.
easyJet is expected to make its return to Ljubljana on December 11 when it inaugurates its new route from London Luton. Services from Gatwick are set to be restored a week later, on December 17. However, if travel restrictions persist on both sides, it is highly likely some or all flights may be cancelled. Prior to the pandemic and following the demise of Adria Airways late last year, easyJet was Slovenia’s largest carrier, while Stansted - Ljubljana was the busiest out of the three routes it maintained to the country. This November, for the first time in over a decade, Ljubljana will no longer be served by a single low cost carrier with Wizz Air and Transavia also having suspended their operations to the city.
easyJet is struggling under the strain of the ongoing pandemic. An airline union official said he believes the carrier is "hanging by a thread". In a leaked recording, Martin Entwisle said the company was in a "really, really dire situation". Mr Entwisle made the comment after a meeting with the airline's Chief Financial Officer, Andrew Findlay. Like all airlines, easyJet had to take drastic measures in response to the pandemic. It placed around 80% of its pilots on the UK government's furlough scheme and secured a 600 million pound loan from the state’s emergency coronavirus fund. In May it announced that it planned to lay off up to 4.500 staff across Europe. The airline, which at the start of the pandemic owned over 80% of its aircraft according to Mr Entwisle, has sold over 30% of them, and leased them back, to plough money into the company, and "more aircraft are about to be sold". Mr Entwisle also said the winter is looking "dire" and will result in the airline cutting back significantly on its schedule. He claims that peak flying each day during the winter "is not going to exceed ninety aircraft in the UK".

Comments
https://www.nijz.si/en/list-countries-crossing-national-borders-without-restrictions
The list was updated last week.
Big difference in modus operandi.
On the positive, I don't think Brits have to quarantine in Slovenia if they have had a negative PCR test 48 hours before arrival (https://www.gov.uk/foreign-travel-advice/slovenia/entry-requirements). If the UK can get its act together with testing (there is now hope that the Government has woken up), then travel to Slovenia is quite viable, which should support a December return. Personally hope they prioritise LGW over LTN as the latter is a horrid airport.
Winter season is gone for the airlines.
This is why they suspend not cancel.
It costs the same in reality it is also the same.
Are you the same anon who got rejected from Adria and is whining on here about communism and nepotism?
TK - 2 per week
JU - 4 per week
AF - 5 per week
LH - 12 per week
YM - 1 per week
Wrong. Every other airport is seeing a decrease in traffic, whereas LJU doesn't have ANY traffic. That's what you get for not having a national carrier.
1. Australia
2. Cyprus
3. Finland
4. Latvia
5. Liechtenstein
6. Lithuania
7. New Zealand
8. Poland
9. Serbia
10. South Korea
11. Uruguay
You can immediately take Australia and New Zealand off the list since their citizens can not leave their countries.
So now you understand why every airline is leaving Slovenia.
1976, JAT started SCHEDULED flights from LJU to New York JFK. At that time it had already maintained scheduled flights to Tunis, Malta, Frankfurt, Amsterdam, Zurich, London. FRA was daily, other international flights with several weekly frequencies, except for JFK, MLA and TUN which were once weekly. JAT had 3 daily to BEG, daily to SKP via SJJ or SPU, several weekly to DBV, and weekly to OHD. So, only JAT had some 7-8 daily flights from LJU at the time you talk about, including intercontinental. There were at least two to three daily charters only by JAT in summer season. In addition to JAT, Adria operated several daily both domestic and international, both scheduled and charter flights from LJU. Aviogenex was present as well, mostly with charters to the UK. KLM had scheduled flights from LJU to AMS, Interflug to BER SXF, LJU had an average of 15-20 flights per day, year-round, and even more in summer. But in twisted present we live in, when even president of Croatia falsifies the past with statement about 1 type of yogurt in Yugoslavia, and over 50 were on the market, I am not surprised you really believe LJU had 3 flights per day in time period in question :(:(:(
PS: Never wanted to work for Adria, never applied for any job.