Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 45% on the overall cost on flights from Spokane to Harlingen.
A simple way to save on the total cost of your ticket is to fly from Spokane to Harlingen in the morning. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight at noon.