The longest first flights.

Soviet cosmonaut Musa Manarov made his first flight from December 21, 1987 to December 21, 1988, together with
Vladimir Titov. They started on the Soyuz TM-4
and landed on the Soyuz TM-6 and spent a year at the Mir
station. For Vladimir Titov, this was the second space flight. This flight of Musa Manarov is still the longest flight for
beginners. The second longest rookie space flight was by American astronaut
Christina Koch - 328 days 13 hours 58 minutes (7885 hours 58 minutes).
The third longest space flight for beginners was made by the American astronaut
Andrew Morgan - 271 days 12 hours 48 minutes (6516 hours 48 minutes).

Pyotr Dubrov is currently making his first space flight. Her return to Earth is scheduled for March 30, 2022. By this time,
the duration of the first flight of Dubrov will be almost 1 year. Dubrov will take second place in the list in terms of
the duration of the first flight after Musa Manarov.
The longest female novice spaceflight was by Christina Koch, an American astronaut
328 days 13 hours 58 minutes (7885 hours 58 minutes). Her flight is also the longest
rookie flight of any American astronaut.
The longest novice space flight among non-Russian and non-US astronauts was made by an astronaut from
Canada David Saint-Jacques: 203 days 15 hours 17 minutes (4887 hours 17 minutes).
Tang Hongbo made the longest rookie space flight among Chinese
astronauts: 92 days 4 hours 12 minutes (2212 hours 12 minutes).
Ye Guangfu is currently in space at the China Space Station. He has
already surpassed Tang Hongbo's time.
List of cosmonauts and astronauts by duration of the first space flight: