How many hours are involved to travel to China?
Under the best case scenario it takes me 12 hours of travel time just to fly to the lower 48; Nome to Anchorage, Anchorage to Seattle, and Seattle to where ever.
And it is fairly common that a lack of timely connecting flights necesitates long airport layovers extending the travel time to 24 hours or even more.
There are only three flights daily between Nome and Anchorage. Its not unusual for the Nome airport to close due to fog or a blizzard. Canceled flights between Nome and Anchorage cause additional havoc with my travel plans.
But flights to the lower 48 don't compare to some of the remote areas I visit. I once traveled to Little Diomede, Alaska. I had planned on returning to Nome the same day but ended up marooned in Little Diomede for a week due to the weather (white-out conditions). Note the landing strip for Little Diomede is the frozen ice of the Bering Sea and polar bears are not an uncommon site.
There aren't restaurants, lodging, etc. in these remote locations so I pack grocercies, a sleeping bag, etc. I end up sleeping in schools, personal residences, libraries.