Originally Posted by
wwtknoyb
Same with many other promotions like Air China and China Eastern intra China flights for free if you book the international leg via Trip.com etc.
More mainland shenanigans.
Here's a one-way (nonstop) from BKK to PVG for this Wednesday, 22 May:

Now, the flight to Wenzhou (WNZ) for the same day, with the MU (China Eastern) flight:

Here are the "cheapest" flights to Wenzhou, availint of trip.com's
free MU ticket through PVG:
Just like when you see good reviews on amazon, or alibaba, don't be a sap, folks.