Episodes
11
1 seasons
11 episodes · 1 seasons · 8.3 hours to binge
11
1 seasons
8.3 h
8h 15m
0 days
non-stop
8.3/10
2,297 votes
Firefly runs to 11 episodes across 1 seasons, at roughly 45 minutes each. Watching every episode back to back is 8.3 hours of pure run time — that's 0 days and 8 hours without a single break.
More realistically, at two episodes a night you'll finish in about 6 days. That's 1.0 full 8-hour work days of screen time. Use the planner below to pick your own pace and get an exact finish date.
8.3 h
Pure run time
6 days
At 2 episodes/day
45 min
Per episode
Day 6: 100% done (11 of 11 episodes)
11.0
on average
8.3 h
on average
495
0 days non-stop
At 8.3 hours, Firefly is longer than 14% of every series tracked here — making it a quick watch. Within the Drama genre the average is 48.5 hours, so Firefly sits below that.
Firefly is very well rated at 8.3/10 from 2,297 votes. With 8.3 hours of total run time it's a weekend project — plan accordingly before you press play.
All 11 episodes of Firefly add up to 8.3 hours of pure run time — that's 0 days and 8 hours non-stop.
Firefly has 11 episodes across 1 seasons, averaging about 45 minutes per episode.
At 1 episode a day it takes 11 days, at 2 episodes a day 6 days, and at a marathon pace of 8 a day just 2 days.
Firefly is rated 8.3/10 from 2,297 votes. Budget 8.3 hours if you want to watch the whole thing.
Episodes, seasons and rating come from TMDB (as of 2/12/2026). Firefly had no official per-episode runtime on file, so the 45 minutes shown are a genre-based estimate.
Use the days-between-dates calculator to count the exact days from today to your finish date.
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