You may change your booking up to 6 hours before your selected arrival time. Visit the following link for changes: https://booking.flyontario.com/en/booking/search/
Changes to the dates of stay are subject to the terms and conditions of your booking.
Please note if you booked during a sale or at a lower price and that rate is no longer available, the new rate will apply. Where specified in the product details, some special offer bookings cannot be amended or canceled.