What is an open-jaw ticket — fly into one city and home from another on one fare, when it saves money versus two one-ways, and how it differs from a stopover.
What is an open-jaw ticket?
An open-jaw ticket is a return-style itinerary that flies you into one city and out from a different city — or uses different origin cities on each half — priced as one ticket instead of two unrelated one-ways.
Classic open jaw: London → Rome outbound, Venice → London return, with overland travel between Rome and Venice on your own. Reverse open jaw changes the UK city instead. Multi-city search tools build these as a single PNR when the airline’s fare construction allows it, which can beat buying two separate one-ways and sometimes beats a simple return plus a discarded segment.
Open jaw is not the same as a stopover. A stopover keeps you on a continuous ticketed journey with a long break in one city; an open jaw leaves a surface gap the airline does not fly. You arrange trains, hire cars or buses yourself. Missed surface legs are your problem — there is no “protected connection” across a train you booked separately.
Use multi-city mode in Google Flights and compare against two one-ways on flight deals. Seasonal timing still follows best time to book flights. visa and Schengen day maths if your surface segment crosses borders.
When does an open-jaw ticket usually win?
Open jaw often wins when your trip is a one-way route on the ground — coast-to-coast Europe, a US road trip, or a Japan rail itinerary — and the combined ticket undercuts two one-ways plus flexibility you do not need.
Example: fly into Lisbon, travel by rail to Madrid, fly home from Madrid on one BA or Iberia-constructed ticket. You avoid backtracking to Lisbon for the return. Price the open jaw against Lisbon return + separate Madrid–London one-way; sometimes the one-ways win. Tactics sit in 21 ways to fly cheaper.
If the open jaw leaves a short airport change the same day, treat that gap like a self-transfer: wide buffers, separate bag rules. For long surface days, pack as if you are changing cities, not connecting — see airport layover survival only if you overnight airside.