It is inconvenient for the subway to turn around like this. After all, you have luggage, so it's a complete mess. It's best to take the airport line. Of course, the fewer cars turn around, the better. Moreover, the subway is very crowded, and there are many roads to bypass, which won't save much time. Moreover, the maglev on Line 2 has a long way to go, so don't fiddle around, just call a taxi or take the airport line.