Flights from Philadelphia to Grand Forks lean towards being more expensive in June. Prices are generally better when you fly from Philadelphia to Grand Forks in October, with the cheapest ticket starting at $324.
Travelers have found that booking a Wednesday departure is the best way to save up to 60% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
It’s typically best to fly out from Philadelphia to Grand Forks in the morning. Doing so could potentially save you 11% on the flight price compared to flying at noon, which is usually more expensive.