How to know in advance whether the flight is delayed?

If the flight is delayed for more than 3 hours, passengers can ask the airline for compensation.

Compensation standard for flight delay

If the long delay is caused by the airline itself, passengers can get corresponding economic compensation from the airline. This guidance mainly includes the following contents: First, there are two standards for airlines to delay flights due to their own reasons, one is more than 4 hours and less than 8 hours, and the other is more than 8 hours.