An open-jaw flight is a round-trip ticket where the traveler departs from one city and returns to another, or arrives in one city and departs from a different one for the journey home. A classic "Destination Open-Jaw" example would be flying from New York (JFK) to London (LHR), then traveling by train through Europe to Paris (CDG), and finally flying from Paris (CDG) back to New York (JFK). This allows you to explore multiple regions without the time and expense of "backtracking" to your original arrival city. Another version is the "Origin Open-Jaw," where you might fly from Chicago to Los Angeles, but then fly back from Los Angeles to New York. These are easily booked on most airline websites by selecting the "Multi-City" search option instead of "Round Trip." Open-jaw flights are particularly popular for Mediterranean cruises (flying into Venice and out of Rome) or for "Road Trip" itineraries where you rent a car in one city and drop it off in another, saving you both travel time and often fuel costs by moving in a single direction.