Episodes
39
3 seasons
39 episodes · 3 seasons · 27.3 hours to binge
39
3 seasons
27.3 h
1d 3h
1 days
non-stop
7.2/10
3,809 votes
Under the Dome runs to 39 episodes across 3 seasons, at roughly 42 minutes each. Watching every episode back to back is 27.3 hours of pure run time — that's 1 days and 3 hours without a single break.
More realistically, at two episodes a night you'll finish in about 20 days. That's 3.4 full 8-hour work days of screen time. Use the planner below to pick your own pace and get an exact finish date.
27.3 h
Pure run time
20 days
At 2 episodes/day
42 min
Per episode
Day 20: 100% done (39 of 39 episodes)
13.0
on average
9.1 h
on average
1,638
1 days non-stop
At 27.3 hours, Under the Dome is longer than 53% of every series tracked here — making it a solid commitment. Within the Drama genre the average is 48.5 hours, so Under the Dome sits below that.
Under the Dome is solidly rated at 7.2/10 from 3,809 votes. With 27.3 hours of total run time it's a few weeks of viewing — plan accordingly before you press play.
All 39 episodes of Under the Dome add up to 27.3 hours of pure run time — that's 1 days and 3 hours non-stop.
Under the Dome has 39 episodes across 3 seasons, averaging about 42 minutes per episode.
At 1 episode a day it takes 39 days, at 2 episodes a day 20 days, and at a marathon pace of 8 a day just 5 days.
Under the Dome is rated 7.2/10 from 3,809 votes. Budget 27.3 hours if you want to watch the whole thing.
Episodes, seasons, runtime (42 min/episode) and rating come directly from TMDB (as of 2/12/2026).
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