Sunday is generally a great day to depart. Flying on this day could help you save up to 101%.
Due to multiple factors, expect to potentially pay more when booking in April. For low rates, February can be a great choice for travel to Bilbao. Flights to Bilbao from Phoenix in February are about $900 on average during February, but can be found for as low as $548.
A simple way to save on the total cost of your ticket is to fly from Phoenix to Bilbao in the afternoon. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the morning.