# FlightSide Guide — Using the Tool and Reading the Sun

FlightSide tells you which side of the plane gets the sun on your flight. Here's how to read that answer, why the sun crosses the cabin the way it does, and what FlightSide can and can't know.

- [Frequently asked questions](/guide/faq) — How FlightSide tracks the sun along your route to tell you which side of the plane gets direct sun. Answers on results, seat choice, routes and data.
- [How to use FlightSide](/guide/how-to/using-flightside) — Enter your route and departure time, and see which side of the plane to pick.
- [How to pick your side](/guide/how-to/pick-your-side) — Read your recommendation, choose sun or shade, and know what to do when it's close.
- [How to use FlightSide offline](/guide/how-to/use-offline) — Install it before you travel, and check your seat with no signal.
- [How to share your flight](/guide/how-to/share-your-flight) — Send your flight to whoever you're traveling with, as text, a boarding pass or a link.