If there is a God for weary, harassed air travellers, he smiled on me a few days ago. :-: I had an unused JP Upgrade Voucher (on becoming Silver) for almost a year, expiring on March 31 which I had not been able to use for some reason or the other despite many K+ class flights. Twice I was told no upgrade seats were available. I even tried emailing them to extend the validity but they refused. Anyway I was traveling from Mumbai on Mar 27 and at the JP Privilege check in, mysteriously got upgraded to J class on a Jet Konnect Flight. I even heard someone else get upgraded on the counter beside me. Anyway flight was pleasant and ironically the sandwiches I had bought for the flight were not required

Nonetheless, it got me wondering on what basis upgrades are offered.
- Is it totally random?
- Is it based on some sort of 'good karma' status they have on their passenger status (tagged to the JP number no doubt)
- Is it done only to those eligible for the Silver/Gold/Plat check in counter?
- Does it happen only if the flight is overbooked? (I had already webchecked in for that flight and it didnt seem too full)

Anyone else have any such experiences? Would love to hear them. I've never actually tried my luck asking for an upgrade though.