To book the cheapest flight to Antalya, it is recommended to plan ahead and book well in advance. Comparing prices across different airlines and booking platforms can also help in finding the best deal. Flexible travel dates can also be advantageous as prices tend to fluctuate depending on the time of year. Signing up for airline newsletters or using travel rewards programs can also offer discounts and other benefits. Additionally, considering alternative airports or traveling during off-peak seasons can also help in finding cheaper flights to Antalya.