Side By Sky

Side by side in the sky

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Sit together

Register your seats on your flight. When someone on the same flight can swap with you, we send you a proposal. No listings to browse, and nobody learns who you are.

Add your seats

No names are collected. No seats are bought or sold here.

How it works

  1. You register your seats

    Tell us your flight, your seat numbers and an email address. No names, no booking references.

  2. You get a proposal

    When someone on the same flight can swap with you, we email you a link to the proposal.

  3. Both sides accept

    The swap goes ahead once both sides accept. Each of you gets the seat to move to on board.

How are you flying?

One form, three situations. The system puts the swaps together — nobody browses listings or other people's seats.

  • Travelling together, sitting apart

    Register every seat on your booking, up to nine at once. We look for swaps that sit you side by side.

  • Flying solo, with a seat in mind

    Register your seat and add a wish: a particular seat, or any seat in a chosen row. You will find the wish under the form's advanced options.

  • Flying solo, and happy to help

    Register your seat without a wish. When someone needs it to sit with their party, we will offer you a swap. You can always say no.

Private from the first step

How we protect your data

  • Your contact details are never shown to anyone

    Contact details are encrypted in the database. They are used only to notify you about your registration.

  • No names, no surnames

    We never collect names, surnames, booking references, document numbers or boarding passes.

  • Every registration expires

    Once it expires it no longer takes part in matching, and the data that says something about you is permanently deleted from the database.

Before you register

When should I register my seats?

As soon as you know your seat numbers — at booking or at check-in. The earlier, the more time there is to find a swap. We send proposals up to 30 minutes before departure.

How long do I have to answer?

The deadline is in the email and on the proposal page, in the departure airport's local time. The closer the flight, the shorter it is. Without an answer in time, the proposal expires.

I registered my seats and have no proposal. Why?

A proposal appears only when someone on the same flight registers with whom a swap is possible. The more people from your flight register, the better the chance — send an invitation to the people flying with you. We do not guarantee that a proposal appears.

I did not get the email. What now?

Check your spam and promotions folders. If the message is not there, send the form again with the same address — you will get a new link.

Will the other side learn anything about me?

No. On the proposal page everyone sees only their own seats: the ones they have now and the ones they will get. We never show an email address or anything else about the other side.

What do I do on board?

Take the seat from your swap confirmation. The person in that seat got the same confirmation and will move to yours.

The other person did not show up or refused on board. What now?

We are sorry. A swap is voluntary to the very end, and seats on board are the crew's decision. We never pass on the other side's contact details. Stay in your own seat.

Does a swap change my booking?

No. We are not connected to any airline's systems, and your boarding pass still shows your original seat. You swap on board.

Do I need an account?

No. An email address for the links is all it takes. An account is an extra: you sign in with a one-time link from an email, with no password, and you can connect it to a Telegram bot.

How do I delete my data?

Your registration page has a "Delete registration and my data" button. Your email address is removed at once, and pending proposals are cancelled.

Split up at check-in? Read the guide.

Already know your seat numbers?

Register them and leave the rest to us. The swap proposal comes by email.