As of my last update, Allegiant Airlines typically doesn't offer multi-city flights like traditional carriers. However, you can still book multiple one-way flights to create your own multi-city itinerary.

Here's how you can do it:

  1. Visit Allegiant's Website: Go to Allegiant's official website.

  2. Select "One Way" Option: Since Allegiant primarily operates point-to-point flights, you'll need to book each leg of your journey separately. Begin by selecting the "One Way" option on the booking page.

  3. Enter Your Departure and Arrival Cities and Dates: Input your departure city, arrival city, and travel dates for the first leg of your journey.

  4. Select Flights: After entering your travel details, Allegiant will display available flights for that specific route and date. Choose the flight that best suits your schedule and budget.

  5. Add to Cart and Continue: Once you've selected your first flight, add it to your cart and proceed to checkout.

  6. Repeat Steps for Additional Legs: After completing the booking for your first leg, return to the Allegiant website and repeat the process for each additional leg of your journey, selecting one-way flights for each segment.

  7. Review and Pay: Once you've added all the desired flights to your cart, review your itinerary and proceed to payment to finalize your booking.

While this process may seem a bit more tedious compared to booking a traditional multi-city itinerary, it allows you to create a custom itinerary that fits your travel needs using Allegiant's point-to-point service. If you encounter any difficulties during the booking process, you can always reach out to Allegiant's customer service for assistance.