How to Change Your Frontier Flight navigate to the airline's website and locate the "Manage Booking" section. Enter your reservation details and follow the prompts to modify your flight. Depending on availability, you can change the date, time, or destination of your journey. Be mindful of any fees associated with changes and ensure you adhere to Frontier's policies regarding modifications. Double-check your new itinerary to confirm accuracy. If you encounter any issues or have specific inquiries, don't hesitate to reach out to Frontier's customer service for assistance.