Trip Builder

Trip Builder is a free Flexbook tool that lets you chain cheap one-way flights into your own multi-city trip, up to 15 stops. Start from any airport, see the cheapest flights out, pick one, choose how many nights to stay, and search onward from there.

How it works

• Start from any airport — your nearest one is detected automatically.
• See the cheapest flights out on your date and pick where to go next.
• Choose how many nights to stay, then Trip Builder searches the cheapest next flights from that city.
• Repeat until you are ready to head home, then book the whole trip at once.

Who it is for

Trip Builder suits travellers with a starting point and time, but no fixed plan: backpackers, gap-year students and anyone who wants to follow the cheapest fares. If you already have a list of cities, Route Builder finds the cheapest order instead.

Sharing and changing a trip

Your trip is saved in the page link as you build it, so you can share it with travel companions, come back to it later, or change a stop without starting over.

Tips for a cheaper trip

• Keep your dates a little flexible — moving a hop by a day can change the fare a lot.
• Nearby cities are often connected by very cheap short flights, so a few short hops can cost less than one long one.

How booking works

Flexbook finds and plans the trip; bookings are completed on Kiwi.com, our booking partner. When you press Book, you go to Kiwi.com with your flights already selected and pay there, at the price Flexbook showed you. Flexbook adds no markup and no booking fee.

Frequently asked questions

How many stops can a trip have?

Up to 15.

Do I have to plan the whole route first?

No. You choose each next stop after seeing the cheapest fares from where you are.

Can I share my trip?

Yes. The trip is saved in the link — copy it and send it.

Is Trip Builder free?

Yes. It is free and works without an account.