Can people share their experience regarding to all the flight delays/cancellation or any kind of problems they had gone through?

i'm a long distance flyer, and i had one very frustrating experience from last year that i could never forget. I was departing from Boston Logan and my final destination was Hong Kong. Ok, so my flight schedule was the following...well, since that was a last minute booking so i ended up like this (they actually made me routing to Frankfort germany when i first trying to reserve a ticket, but anyway): Boston (US air) ->Seattle (US air) - > San Francisco (SQ) -> Hong Kong. Since Boston was having this thunderstorm the day i departured, so the US airways had to delay my flight to seattle which would have me missed my flight from Seattle to SF and then the rest of the routine would just mess up. But since i was traveling in Business class, they had to treat me a little nicer so they 're-schedule' my flights AGAIN, so i ended like this: Boston (UA) -> Washington DC (UA) -> SF (UA) -> Tokyo (UA) -> HK ...

And the story begins, by the time i got to DC, my flight for SF had just taken off 5 minutes before i got there and that was 11pm at night and that was the last flight for SF. So i went up to the service desk and they arranged me a room in the airport hotel and they made the 3rd change to my flight schedule, and then i remembered my luggages and wondered where they were, coz my flight schedules have been changed twice already after i checked in, and the lady in the front desk told me to ask people in SF when i get there, ok fine... basically i didn't sleep at all coz it was already 1am by the time i got to the hotel and then i left at 6am for the SF flight. So it went quite smooth from SF to Tokyo to HK, but it took me 3 days to arrive hong kong instead of 1 day. And i had to leave for Shanghai 48 hours later. And when i checked up with the staff about my luggages in HKG, they couldn't locate my luggages and didn't know where they were. Since i arrived HKG early in the morning, I called up UA every 3 hours or so to see if they have found my luggages, but no luck for the first day. And then i got worried on the 2nd day since i had to leave HK in 24 hours and they still hadn't found my luggages... then here comes the 3rd day, and they called me up in the early morning and told me that my luggages were there in the airport and the staff could deliver them to me before 12pm, then i was finally relieved, but i technically spent 30 mins to unpack + pack before i left home for shanghai that afternoon.

That was hectic......

I started long distance traveling since i was 15 and this was just the most chaotic experience i ever had.