Are international flights more likely to be delayed than domestic flights?

Relatively speaking, international flights are not easily delayed. Generally speaking, if the weather is normal, they will arrive earlier. Because most international flights will consider the possibility of connecting flights after you arrive at your destination and try to avoid delays.

I'm not sure how far it is from Kaohsiung. Generally speaking, the flight from the United States to China will be about 3.5 minutes ahead of schedule, because the route distance is long. The connecting flight to Japan usually arrives 20 minutes early. But these are all on the premise of normal weather.

If there is a delay caused by abnormal weather, international flights will be given priority after the general weather is lifted, followed by local airline flights (such as China Eastern Airlines/Shanghai Airlines in Shanghai and Air China in Beijing), and then other flights.

The transit time mentioned upstairs, if it is an international transit, it is safer to reserve at least 2 hours, because it may involve customs clearance, especially in large international airports, and may also involve the transit of terminal buildings.

According to the schedule added by the landlord, the time should be about the same. Unless the weather in the three places affects, international flights are generally on time. I flew from Xi 'an to Shanghai last week and chose an international flight to transfer in Shanghai. There is fog in Xi, and my flight is not delayed at all.