yes. Applies to US and Canada flights only.
Passengers can also request changes to their Sunwing flights free of charge within 24 hours. However, fare differences may apply.
Here's an overview of Sunwing flight cancellations within 24 hours:
The airline allows passengers to cancel reservations within 24 hours from the date of purchase.
Sunwing trip cancellation refunds will be processed back to your original payment method within 2-3 business days.