Leaving on a Thursday 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 28% on the overall cost on flights from Dallas/Fort Worth Airport to Grande Prairie.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dallas/Fort Worth Airport to Grande Prairie as you normally would.