Article 5
Cancellation
1. In case of cancellation of a flight, the passengers concerned shall:
(a) be offered assistance by the operating air carrier in accordance with Article 8...
Article 6
Delay
1. When an operating air carrier reasonably expects a flight to be delayed beyond its scheduled time of departure:
(a) for two hours or more in the case of flights of 1500 kilometres or less; or
(b) for three hours or more in the case of all intra-Community flights of more than 1500 kilometres and of all other flights between 1500 and 3500 kilometres; or
(c) for four hours or more in the case of all flights not falling under (a) or (b),
passengers shall be offered by the operating air carrier:
(i) the assistance specified in Article 9(1)(a) and 9(2); and
(ii) when the reasonably expected time of departure is at least the day after the time of departure previously announced, the assistance specified in Article 9(1)(b) and 9(1)(c); and
(iii) when the delay is at least five hours, the assistance specified in Article 8(1)(a)...
Article 8
Right to reimbursement or re-routing
1. Where reference is made to this Article, passengers shall be offered the choice between:
(a) - reimbursement within seven days, by the means provided for in Article 7(3), of the full cost of the ticket at the price at which it was bought, for the part or parts of the journey not made, and for the part or parts already made if the flight is no longer serving any purpose in relation to the passenger's original travel plan, together with, when relevant,
- a return flight to the first point of departure, at the earliest opportunity;
(b) re-routing, under comparable transport conditions, to their final destination at the earliest opportunity; or
(c) re-routing, under comparable transport conditions, to their final destination at a later date at the passenger's convenience, subject to availability of seats.