Booking Flights at Avelo Airlines Delaware You can book Avelo flights in person at this office. The staff will guide you through the booking process. They can show you available flights on a computer screen. You can ask questions about different flight options. The office can process payments for your booking. They'll provide you with a confirmation of your reservation. You can get a printed itinerary at the office. The staff can explain booking terms and conditions. They can help you choose the best fare for your needs. You'll leave with all the information you need for your trip.