Check-in : Tix.es

Check-in

How and when do I check in online?

How do I check-in for my low-cost booking (e.g. Ryanair/Laudamotion, Easyjet, Wizzair, Vueling)?

Where do I find my booking reference and/or ticket numbers?

Can I check in for a return flight already?

I am unable to check-in online. Can I check-in at the airport?