Allegiant Air's flight change policies may vary, and they often have specific rules and fees associated with changing flights. If you're looking to change your Allegiant Air flight, here's a general overview of what you might need to know:

• Fees and Charges: Allegiant airlines change flight typically charges a fee for changing flights. The fee can vary based on factors such as when you make the change and the type of fare you purchased. It's important to be aware of these fees before proceeding with a flight change.

• Online vs. Phone Changes: You can often make flight changes online through the Allegiant Air website. However, if you're unsure about the process or if your specific situation is complex, it might be a good idea to call Allegiant Air's customer service for assistance.

• Availability and Fees: Keep in mind that making changes to your flight might incur additional costs, especially if the new flight has a higher fare. Additionally, if you've purchased any add-ons like seat selection or baggage, these might need to be adjusted as well.

• Same-Day Changes: Allegiant Air might have limited options for same-day flight changes. If you're looking to change to an earlier or later flight on the same day, be sure to check their policy and availability.
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• Restrictions: Some fares might have more flexibility than others when it comes to changes. Basic fares might have stricter change rules compared to higher-tier fares.

• Flight Availability: The availability of alternative flights could impact your ability to change your flight. If the desired flight is already full or unavailable, you might need to explore other options.

• Cancellation and Rebooking: Depending on the specific circumstances, it might be more cost-effective to cancel your existing flight and rebook a new one, especially if the change fee is high. However, keep in mind that cancellation and change policies can vary, so be sure to understand the details before proceeding.

To proceed with changing your Allegiant Air flight, follow these steps:

• Visit the Website: Go to the Allegiant Air website and log in to your account, if you have one. Navigate to the "Manage Travel" or "My Trips" section.
• Retrieve Booking: Enter your booking details, including your confirmation number and last name, to retrieve your booking

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• Select Change: Find the flight you wish to change and look for the option to change your flight. Follow the prompts to select a new flight and make the necessary payment for any applicable fees or fare differences.

• Confirmation: Once you've completed the changes, you should receive a confirmation of your updated flight details.

Remember that the information provided here is based on general practices, and Allegiant Air's policies might change over time. For the most accurate and up-to-date information, visit the official Allegiant Air website or contact their customer service directly.