Upvote:3
Article 10 Flight Schedules, Cancellations etc. of Singapore Airlineβs T&Cs states that (a) If Carrier cancels, terminates, diverts or fails to operate a flight reasonably according to schedule, is unable to provide previously confirmed space, fails to stop at a Passengerβs stopover or destination point, or causes the Passenger to miss a connecting flight on which he holds a reservation, the options are:
(1) carry the Passenger as soon as it can on its scheduled service; or
(2) re-route the Passenger to the destination indicated on the Ticket or applicable portion thereof (no fee) or
(3) make a refund in accordance with the provisions of Article 11 Paragraph 3.
In general, they have to agree the preferred option with you.
Source: https://www.singaporeair.com/en_UK/global_footer/conditions-carriage/