Will the flight from Shenyang to Lanzhou be delayed?

Yes.

1. Weather reasons: Aircraft are seriously affected and restricted by the weather. Extremely bad weather such as strong winds and heavy rain, thunder and lightning, blizzards, sandstorms, etc. will all affect the takeoff of the aircraft.

2. Mechanical failure: If the aircraft mechanical system fails and needs repair, the airline will take measures to delay or cancel the flight.

3. Passenger reasons: Passengers who did not check in on time, whose luggage was overweight, did not comply with regulations, failed security inspections, etc., will all cause flight delays and cancellations.