How to Book a Multi-City or Complex Flight Itinerary

If your trip includes more than two stops — say, fly into one city, travel overland, then fly home from a different city — a standard round-trip search won't capture it. That's what multi-city booking is for.

What "multi-city" actually means

Multi-city (sometimes called "multi-destination") lets you specify a separate origin, destination, and date for each leg of your trip, all under one search and often one booking. Most airline sites and search engines have a dedicated multi-city tab separate from the standard round-trip/one-way toggle.

When to use multi-city vs. separate bookings

• Use multi-city when your stops are on a genuinely different route (fly into City A, home from City B) — it keeps everything on one itinerary, which usually means better rebooking protection if a leg is disrupted.
• Book separately when your "stops" are really just long layovers you want to turn into visits — in that case, a stopover program (some airlines let you add a free multi-day stopover on a connection) might be a better fit than a full multi-city search.

Steps to book a multi-city trip

1. Select the multi-city option in the search tool instead of round-trip.
2. Add a row for each leg: origin, destination, and date. Most tools let you add 3-6 legs.
3. Compare pricing the multi-city search returns against booking each leg separately — multi-city itineraries on one airline are often priced as a bundle and can be cheaper than you'd expect, but not always.
4. Double-check layover times between legs if any segment connects through a hub.

Things that trip people up

Baggage rules can reset between separate one-way segments even within one multi-city booking, depending on the airline and fare class — don't assume a checked bag carries through automatically if you're changing airlines mid-trip. Also budget extra time for itineraries spanning multiple airlines, since a delay on one carrier isn't that carrier's problem to fix if your next leg is on someone else's ticket.

Multi-city itineraries have more moving parts than a simple round-trip, so if you'd rather have someone double-check the routing and rules before you pay, that's a reasonable thing to ask for help with.