According to SAS cancellation policy, you can cancel a flight ticket within 24 hours of booking without paying any cancellation fee making sure that the booking was made at least 7 days before the departure date. If you have booked a round ticket and want to make a cancellation for one way, you would get a SAS refund for the unused trip.
https://www.airmonks.com/cance....llation-policy/sas-s


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