According to Alaska air same day flight change policy, the change would not be applied if the flight was booked within 7 days of scheduled departure. If an Air ticket is reserved by any outsider travel service, via the web or offline medium, travelers would be charged a modification expense and the ticket will not come under the change policy. If passengers want to gain full facility for modification, then passengers should change their booked ticket within risk-free time. Visit our website to know more.