Leaving on a Tuesday 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 13% on the overall cost on flights from Cleveland to Harlingen.
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, March can be a great choice for travel to Harlingen. Flights to Harlingen from Cleveland in March are about $286 on average during March, but can be found for as low as $128.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cleveland to Harlingen as you normally would.