Most travellers search for a round trip out of habit: same airport out, same airport back. But a two-week trip rarely starts and ends in the same place. You land in Rome, work your way north through Florence and Venice, and then spend a day travelling all the way back to Rome just to catch your flight home. An open-jaw ticket fixes that. You fly into one city and home from another, on a single booking, and the airline treats it as one trip rather than two one-ways.
The three shapes an itinerary can take
- Round trip. New York → Rome, Rome → New York. One origin, one destination, two flights.
- Open-jaw. New York → Rome, Venice → New York. The "jaw" is the gap between Rome and Venice, which you cover yourself by train, car or a short regional hop. A double open-jaw also changes the US end: New York → Rome, Venice → Boston.
- Multi-city. Three or more flights on one ticket: New York → London, London → Istanbul, Istanbul → New York. Every segment is a flight the airline operates or sells.
Airlines price an open-jaw as half of one round trip plus half of another, which is why it is usually far closer to a normal return fare than to two separate one-way tickets. Compare it yourself: run a live search on New York to Paris and on a second guide for your return city, then run the same dates as a multi-city search.
When an open-jaw is the better trip
- A linear route. Lisbon to Porto, Rome to Milan, Tokyo to Osaka, Madrid to Barcelona. If the itinerary is a line rather than a loop, doubling back to the arrival airport is wasted time.
- A rail-friendly region. Europe and Japan have fast trains between the big cities, so the gap costs you an afternoon instead of a day. Start with San Francisco to Madrid, finish in Barcelona, and the train between them is part of the holiday.
- A cruise or a tour that ends somewhere else. Repositioning cruises and overland tours are built for this: they drop you off hundreds of miles from where you boarded.
- Different airlines dominate each airport. Flying into a hub one airline owns and out of a hub another owns can open up nonstop options in both directions that a plain round trip would never show.
When it is not worth it
An open-jaw only pays off when the gap is easy to cover. If the two cities are a long domestic flight apart, you are effectively paying for a third flight anyway, and a round trip plus a separate internal ticket may be simpler. It also works best on the same airline or alliance for both long-haul legs; mixing a Star Alliance outbound with a oneworld return usually means the search tool prices it as two one-ways, which defeats the point. Our airline guides list which alliance each carrier belongs to.
How to search for one
Every serious search tool has a multi-city option next to "round trip" and "one way". Enter the outbound as the first leg and the return from the second city as the second leg, with nothing in between. Then check three things before you book:
- The fare family on each leg. Multi-city results sometimes pair a basic economy outbound with a standard return. Make sure the bag and seat rules match what you need in both directions. Our baggage guide explains the tiers.
- The connection times. An open-jaw often adds a stop on one side. Use the layover guide to make sure each one is realistic.
- The order of cities. Try it both ways. Into Venice and out of Rome can price differently from into Rome and out of Venice, because each direction loads different airlines.
Mistakes that turn a clever routing into a headache
- Booking the ground leg too tight. Trains get cancelled and roads flood. Arrive in the departure city the night before your flight home, not the morning of it.
- Forgetting the checked bag. On a single ticket your bag is checked through on each long-haul leg, but nobody carries it on the train for you. Pack for the gap you will cover yourself.
- Changing one leg and not the other. A change to the outbound can re-price the whole ticket. Decide the itinerary before you pay, not after.
- Assuming an open-jaw is always available. Some sale fares and some airlines only sell true round trips. If the multi-city search returns nothing sensible, that is why.
Where to start
Pick the arrival city on a Way4Fly route guide, note which airlines fly it nonstop, then look up the same airport-pair for your departure city on the departure-city index. If the same carrier or alliance serves both, you have an open-jaw candidate. Our travel desk can price complex itineraries by phone 24/7 if you would rather talk it through.
