E1Episode 1
Where to watch
Not streaming yet
Coming soon
No streaming availability found for Birthday Letter anywhere yet.
Seasons & Episodes
E1
E2Episode 2
E3Episode 3
E4Episode 4
Cast · Directed by Kim Jung-kyu
More from Jo Soo-min · Lead actress
More from Kim Kyung-nam · Co-star actor
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Birthday Letter — streaming FAQ
Which OTT platform streams Birthday Letter?
Birthday Letter isn't streaming anywhere in United States yet.
Is Birthday Letter on Netflix?
No, Birthday Letter is not on Netflix in United States as of October 2026.
Is Birthday Letter on Amazon Prime Video?
No, Birthday Letter isn't on Amazon Prime Video in United States right now.
Where can I watch Birthday Letter for free?
Birthday Letter isn't streaming in United States yet, so there's no way to watch it free at the moment.
How many seasons are in Birthday Letter?
Birthday Letter has 1 season in total (4 episodes). The series concluded in 2019.
Are all episodes of Birthday Letter out yet?
Yes — all 4 episodes across 1 season of Birthday Letter are out and available to stream.
Is there a Season 2 of Birthday Letter?
No — Birthday Letter ended after 1 season, so there is no Season 2.
