Hi there! I’m here to help you out with the issue you’re experiencing on the Allegiant site. Can you let me know if you're encountering a specific error message when you try to proceed? That will help me troubleshoot more effectively.

In the meantime, I suggest a few initial steps that often resolve loading issues:

1. Clear Your Browser Cache: Sometimes, accumulated data can cause problems with website loading. You can do this by going into your browser settings. Look for the option to clear browsing data and select cache.

2. Disable Browser Extensions: Certain extensions can interfere with website functionality. Try disabling them temporarily to see if that resolves the issue.

3. Use a Different Browser: If you're using WebKit-based browsers, try accessing the site through a different browser like Chrome or Firefox to see if the issue persists.

4. Check for App Updates: If you’re using the Allegiant app, ensure it’s updated to the latest version.

Once you try these steps, let me know the results or if you see any specific error messages!