United MileagePlus members can earn up to 100,000 bonus miles when flying between Chicago and Shanghai through Dec. 6, 2014. The bonus miles accumulate for up to four roundtrip flights during the promotion.

Fly United Global First or United BusinessFirst (F, A, J, C, D, Z, P):
– Earn 25,000 bonus miles for one roundtrip.
– Earn 50,000 bonus miles for two roundtrips.
– Earn 75,000 bonus miles for three roundtrips.
– Earn 100,000 bonus miles for four roundtrips.

Fly United economy (Y, B, M, E, U, H, Q, V):
– Earn 10,000 bonus miles for one roundtrip.
– Earn 20,000 bonus miles for two roundtrips.
– Earn 35,000 bonus miles for three roundtrips.
– Earn 40,000 bonus miles for four roundtrips.

Fly United economy (W, S, T, L):
– Earn 5,000 bonus miles for one roundtrip.
– Earn 10,000 bonus miles for two roundtrips.
– Earn 15,000 bonus miles for three roundtrips.
– Earn 20,000 bonus miles for four roundtrips.

Members must register HERE prior to travel and travel from Chicago (ORD) to Shanghai, China (PVG) on flights operated by United.

INSIDE|Point: Members should pay close attention to the fine print that states, “Circle trips, multi-city itineraries and itineraries with stopovers do not qualify for this offer.”

There is a similar bonus from American AAdvantage that also runs until Dec. 6, 2014, where AAdvantage members can earn up to 100,000 bonus miles for nonstop roundtrip flights between Dallas/Fort Worth and Hong Kong or Shanghai or between Chicago (ORD) and Shanghai. Go HERE to register for the AAdvantage bonus.