Can I check in online or with a mobile phone if I travel with baggage?

Yes, you can check in online also when you travel with baggage. If you have baggage to check in, you can leave it at the Bag Drop desk during your flight's check-in period. At Helsinki, Copenhagen, Turku, Tampere, Oulu and Vaasa airports you can also leave your bags at the Self-service Bag Drop and make your way through the airport even faster.