Departing on a Monday is a good option for securing a great price. You can expect to save up to 50% when planning your travel around this day of the week.
Due to multiple factors, expect to potentially pay more when booking in May. For low rates, September can be a great choice for travel to Hermosillo. Flights to Hermosillo from Seattle in September are about $387 on average during September, but can be found for as low as $160.
A simple way to save on the total cost of your ticket is to fly from Seattle to Hermosillo in the afternoon. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight in the noon.