List of Lost episodes
Series overview

List of Lost episodes

Section Title: Series overview
Table Section Text: None

Season	Episodes	Originally aired	Nielsen ratings

First aired	Last aired	Avg. viewers (millions)	Rank

1	25	September 22, 2004	May 25, 2005	15.69	15

2	24	September 21, 2005	May 24, 2006	15.50	15

3	23	October 4, 2006	May 23, 2007	17.84	10

4	14	January 31, 2008	May 29, 2008	13.40	17

5	17	January 21, 2009	May 13, 2009	10.94	28

6	18	February 2, 2010	May 23, 2010	10.08	31

Sentence(s)

The fourth season of Lost averaged a total of 13.40 million viewers.

final_sentence: The fourth season of Lost averaged a total of 13.40 million viewers.