passepartout

There’s always more
than one way home.

Name every airport you can reach. I’ll find the cheapest way home from any of them.

Coming soon to iOS & Android

How this started

One summer I was interrailing across Switzerland with a backpack, trying to get back to Istanbul without wrecking my budget.

The flight home out of Zürich wanted €220 — from the airport I’d just default to.

the detour

So I hopped a slow 3-hour train through the Schwarzwald — the Black Forest — over to Stuttgart.

Glad I did, in the end — I’d never have caught the Rheinfall thundering past Schloss Laufen if I’d flown straight out of Zürich.

the payoff

From Stuttgart, the very same flight home cost just €160.

Sixty euros saved by going the long way round.

That’s when it clicked.
The airport you start at is just a habit.
There’s always more than one way home.

How it works

Embarrassingly simple, on purpose.

01

Explore your reach

Pan around the map and pin every airport you could actually get to — a train ride, a bus, a friend with a car. Half the fun is discovering how much wider your reach is than the one airport you book out of habit.

02

Search it backwards

Other tools start from where you are. I start from home, then search the skies out of every airport you’ve named — all at once.

03

Take the long way home

Every route lands in one list, cheapest first. More often than you’d believe, the scenic detour is also the cheap one.

Honest by design

A finder, not a middleman.

You book it yourself

I find the route, then hand you off to a real booking site to book it. I never handle the booking — and never see a cent of your money.

It forgets you on purpose

No account, no database, no cookies trailing you across the internet. I keep nothing — because I want nothing from you.

Nobody jumps the queue

The cheapest flight is just the cheapest flight. The list was never for sale.

Built with the help of the open-source fast-flights library — thank you to its maintainers.

a note from me

It’s free.
And it’ll stay that way.

I made Passepartout because I was broke and stubborn — not because anyone was paying me to.

There’s no sign-up, because I don’t want your email. Nothing to track, because I’m not selling anything. The cheapest flight is just the cheapest flight — never a “recommended” one someone paid to push to the top.

If it ever saves you sixty euros like it once saved me, that’s the whole point.

— Alp