If you arrive at the airport in advance but can't find the relevant flight information, I suggest you consult the airline or airport customer service staff as soon as possible. They usually provide real-time flight information and help, and can tell you about flight delays, cancellations or other changes.
When consulting, you can provide your own flight number, origin and destination, and estimated departure time. This information can help the staff to help you more accurately. You can also check flight information through official website or application of airlines or airports. These platforms usually provide accurate and up-to-date flight dynamics.