From most locations, the cheapest flights to Phoenix can be found during the month of January; however great deals can be found at other times.
On average, from most locations, when planning your trip to Phoenix, try to book your flight in the region of 60 days in advance for the cheapest prices.
From most locations, the cheapest flights to Phoenix are found on a Tuesday. Booking a Thursday departure is usually the most expensive.
Typically, cheap prices to Phoenix are most often found for noon flights. Cheap prices are less likely for morning flights.