Per this FlyerTalk thread, American has published a really cheap fare for roundtrip travel from Philadelphia to Beijing between January 7 and March 7, 2014. The base fare is $314, which isn’t actually unusual, but the interesting thing is that there are no fuel surcharges on the fare, which are usually an extra $300-400 roundtrip.
There doesn’t seem to be a minimum stay for the fare, so you can theoretically turn around after a night if you’d like to.
Anyway, the number of dates available under the fare is limited, so you’re probably best off using ITA Matrix to look up space. Just enter the origin and destination, specify you want to fly on American, and enter the number of days you’d like to stay, and it’ll show you results on a calendar.
The cheapest fare I’m seeing is $449 roundtrip.
Anyway, that’s a hell of a deal and as usual all revenue American fares are upgradable with systemwide upgrades. So it’s tough to beat a sub-$500 fare to China, especially when upgrades to business class are a possibility.
This won’t last…