How long would it take to fly from Australia Mongolia?

There are no direct flights from Australia to Mongolia. The total flight duration from Sydney, Australia (SYD) to Ulaanbaatar, Mongolia (ULN) with one stop in Seoul, South Korea (ICN), is approximately 15 hours and 35 minutes. This includes the layover time in Seoul.

Here's a breakdown of the flight duration:

1. Sydney to Seoul (SYD-ICN): Approximately 10 hours and 40 minutes

2. Layover in Seoul: Approximately 1 hour and 55 minutes

3. Seoul to Ulaanbaatar (ICN-ULN): Approximately 3 hours and 20 minutes

Please note that the actual flight duration may vary depending on the airline, the route taken, and the prevailing weather conditions. It's always a good idea to check with the airline directly or use a flight booking website for the most up-to-date flight information and schedules.