If the entire journey is booked as a single ticket with one airline or under one booking reference (even with codeshares), luggage is typically checked through to the final destination. If flights are with different airlines or purchased separately, passengers usually need to retrieve their luggage at the transit point (e.g., Baku), clear customs if applicable, and re-check it for the next flight. It is highly recommended to confirm the luggage transfer procedure at the initial check-in counter. Even for the same route, different booking options might exist regarding re-registration in transit.
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