I can tell you it's like that for more than a year.

Speaking about flights ex IST if there's overbooking an agent from the overbooking/denied boarding office comes to the gate and tries to find volunteers before boarding by directly engaging with pax. If they can't find sufficient volunteers or if the agent is late then an overbooking announcement is made.

Safak, my point was that having it done this way with a PA announcement and all that is relatively new, it is almost like someone in operations at TK finally traveled somewhere else, USA perhaps, and decided, "let's do it like that". In the past they would either target certain individuals, and page them to the desk, to ask or tell them, that they were being offloaded, or whether they would "volunteer". I think over the last 4 decades I have seen this activity done with a general "volunteer" announcement maybe once before (BTW I am speaking about ex-Istanbul, not ex-out stations here), and I have seen it several times in t he last few months, that's all.

It's cheaper for them to offer that than paying out EU261.

The most expensive, as it was business trip.

why? if from/to EU, EU261 will still apply despite TK offering pax $400 to take a later flight and/or a hotel and food for the next day. Maybe they will deduct $400 from EUR600 (asuming long-haul flight comp), but still...

EC261 does not apply on TK when flying into the EU.

EC261's Turkish equivalent (SHY Yolcu) applies to the flights between Turkiye and EU.

I have never heard USD as the currency of the compensation in IST. In my experience it was always EUR. The most recent one was at the end of last December.

Given the distance 400€ makes sense for some of the European destinations. The rest of the Europe falls under 250€ compensation.

Of course it does apply when flying into EU or connecting in IST on the way to EU!

EC261 only applies to community carriers* when flying into EU.

* "Community carrier" means an air carrier with a valid operating licence granted by a Member State in accordance with the provisions of Council Regulation (EEC) No 2407/92 of 23 July 1992 on licensing of air carriers(5);

Of course it does not. Sorry.

Of course it does, if the first flight was out of EU country. Then also the return flights are covered.

That is not how EC261 works.

For an EU airline, it works both ways. Fly AF CDG-JFK or JFK-CDG and you are covered.

But for a non-EU airline, it only works departing the EU. Fly AA CDG-JFK and you are covered, but JFK-CDG, you are not. Regardless of whether these are on the same ticket.

Then again, fly AA CDG-JFK-MIA and you are covered even if the delay/cancellation occurs on the JFK-MIA segment.

An interesting case is also an EU airline where the journey both starts and ends outside the EU. Fly AY DEL-HEL-JFK and you are not covered even if AY is an EU carrier and HEL is in the EU.

Furthermore, codeshares do complicate things and sometimes in the favour of the passenger. Fly SFO-DFW-HEL on AA and AY, but book under AY codes, and you are covered if the first segment (a domestic flight in the USA, operated by an American carrier) gets messed up!

nope - each flight outbound and inbound are treated separately. If the outbound flight is out of EU country that flight is covered. the inbound flight isn't as it starts in a non EU country and is operated by a non-EU airline.
so when you fly MUC-IST-HKG / HKG-IST-MUC only MUC-IST-HKG is covered by the EU.

Every online-service helping passengers to get their compensation will deny to process HKG-IST-MUC claims on a non-EU carrier.

Turkey has very similar passenger rights - if something happens on the MUC-IST-HKG flight you will get compensation according to the Turkish passenger rights - the amounts paid out are identical to EU261.

For the HKG-IST-MUC return, the IST-MUC leg (IST is outside EU, but MUC is EU arrival) is still covered, no?..

IST-MUC is NOT covered by EU261, because the flight starts outside the EU goes into the EU on a non-EU-carrier (TK). If the IST-MUC flight would be Lufthansa it's another story.

the flights HKG-IST-MUC are covered by TK passenger rights instead (https://web.shgm.gov.tr/doc4/shy-passenger.pdf)