Direct vs Non Stop Flight

Direct (non-stop) flights from Philadelphia (PHL)

Non-Stop or Direct? The Difference Between Flight Terms

Transit vs transfer: What's the difference? - Adventurous Miriam

11 Terms Every Traveler Should Know, AAA

Layover vs stopover: Which is better for you? - Adventurous Miriam

11 Terms Every Traveler Should Know, AAA

Know the Real Difference Between a Direct Flight and Nonstop Flight

The difference between direct flight and non-stop flight

Direct Flight Visibility - FlyerTalk Forums