Currently, there are no direct flights to Ukraine from the United States. However, you can still get to some popular Ukrainian cities like Kyiv, Odesa, Lviv, and Kharkiv by booking cheap single-layover flights from the US.
The shortest flight time from North America to Russia is 8 hours 20 minutes. However, flight times can vary depending on weather conditions, air congestion and flight path, so this time is never guaranteed.
The shortest flight time from Russia to United States is 10 hours 50 minutes. However, flight times can vary depending on weather conditions, air congestion and flight path, so this time is never guaranteed.