Originally Posted by
PAXboy
Checking In online is, effectively, very little more than the old 'reconfirming your booking'.
It tells the carrier of your intention to travel but they are still going to have to ask you face to face questions, print your luggage labels, weigh your bags and send then through.
The important aspect IS to register your intent to travel.
That's if you are checking your bag. When I fly Squeezy or Swiss to and from Geneva, if I don't have checked luggage I have no interaction with a human until I show them my BP and Passport at the gate.
If I do check a bag the process is faster, perhaps only 30 or so seconds, but multiply that by a jumbo load and there are savings here ...