Quote from Ross in The Last One (Part Two)
Ross: Listen! I need Rachel's flight information. Monica: Oh, okay. It's flight 421. Leaves at 8:40. Ross: Yes, that's what I have. It's not on the board. Monica: That's what it says here. Flight 421, leaves at 8:40, Newark airport. Ross: What? Monica: Newark airport. Why, where are you? Ross: JFK.