Originally Posted by
sinoflyer
I flew CTU-PEK during the middle of Beijing's red flag alert last December. No delays, nor did I see any on CA's other near-hourly flights between the two cities. The pollution was breathtaking (pun) to behold on landing in PEK, but still, fog is a bigger issue than smog.
Funnily enough, I just did the opposite a week ago, looking forward to not be bothered by as much smog in CTU compared to Beijing. Turned out to be a fresh-air day (AQI <150) in Beijing while my suburb of choice in Chengdu boasted an AQI of 540 for a while before returning to "healthy" 250-ish :/