Originally Posted by StarG
A little correction: it is the order of which passengers check in (via phone, internet, or counter), rather than the order of BP was issued - you can i-check first but BP issued much later upon arrival at airport and still get seq. no. 001.
I've had this a couple of times on SK using their web check-in. I admit it, I'm a bit of a geek in that respect, but that 001 looks really cool. I'm holding an Alitalia

boarding pass right now which lists me as 005. Wish me luck!