What should I do if my flight is cancelled and I risk overstaying my visa in Thailand?

If your flight is cancelled or rescheduled causing a potential visa overstay in Thailand, the general guidelines are as follows: you may incur a fine of 500 baht for each day you overstay, and an overstay stamp will be placed in your passport. It's important to take action quickly by booking a new flight. Alternatively, you can visit immigration to explain your situation, which might result in a 7-day extension of your visa. However, it's crucial to adhere to the stamped date on your passport to avoid fines.