What time does Web Check-in open?

The service is available from two days before the flight's departure, even if you have checked baggage. 

EXCEPTIONS to Web Check-in opening times:

Departing from:Check-in opens before flight departure:
Amman, Amsterdam, Brussels, Yerevan, Frankfurt, Lampedusa, Munich, Nice, Paris, Toulouse, Tunis and Zurich24 hours.
South America, if there are any connecting flightsThe day before

From/To:Check-in opens
before flight departure:
USA24 hours.

With connecting flights operated by KLM, Air France, airberlin, Etihad or Delta Air Lines30 hours*

* Calculated using the scheduled departure time for the KLM, Air France, airberlin, Etihad or Delta Air Lines flight