How To cancel an Alaska Airlines flight, follow these steps: Online Cancellation: Visit the Alaska Airlines website. Navigate to "Manage Reservations" under the "My Trips" section. Enter your confirmation code and last name to access your booking. Select the flight you wish to cancel and follow the prompts to complete the cancellation. Mobile App: Open the Alaska Airlines mobile app. Go to the "Trips" section. Select your flight and follow the cancellation instructions. Phone Cancellation: Call Alaska Airlines customer service at 1-888-406-3009. Provide your booking details to the representative and request a cancellation. Airport: Visit an Alaska Airlines ticket counter at the airport for in-person assistance. Refund eligibility and fees depend on your fare type and timing of the cancellation. Check the airline's cancellation policy for specific details.