If an international flight departs later than usual meal times, such as after 9 PM, the availability of in-flight meals may vary by airline and route.

However, for most long-haul international flights, meals are often provided even if the departure time is late.

Typically, on international flights with a flight time exceeding 3.5 hours, complimentary in-flight meals are provided.

On late-night flights, meals are generally served within 1 to 2 hours after takeoff, and light snacks or drinks may be offered before arrival.

For example, Korean Air and Asiana Airlines serve meals within 1 to 2 hours after departure on routes from the U.S. to Incheon, and may also provide a light meal before arrival.

If you require special meals (e.g., vegetarian, gluten-free, kosher, etc.), you can request them through customer service up to 24 hours before departure.

However, some airlines may only provide light snacks or drinks considering passengers' sleep on late departures.

Therefore, to confirm the exact availability of in-flight meals, it is best to check the official website or customer service of the airline you will be using.

Additionally, you can select in-flight meal options or request special meals when booking your ticket, so it is recommended to check these details as well.