This article lists and tallies all of the flashbacks, flashforwards and flashsideways on Lost.

Characters below are arranged in order of the number of centric episodes. The first flashback by show episode chronology is asterisked

Person	Total Flash Count	Flashbacks	Flash-forwards	Non-flash Centrics	Flash-sideways	Centric episodes
Jack Shephard	25	10	6	1	8	"Pilot, Part 1" "White Rabbit" "All the Best Cowboys Have Daddy Issues" "Do No Harm" "Exodus, Part 1"* "Man of Science, Man of Faith" "The Hunting Party" "A Tale of Two Cities" "Stranger in a Strange Land" "Through the Looking Glass, Part 1"++ "Through the Looking Glass, Part 2"++ "Something Nice Back Home"++ "There's No Place Like Home, Part 1"++* "There's No Place Like Home, Part 2"++* "There's No Place Like Home, Part 3"++* "316"** "The Incident, Part 2"* "LA X, Part 1"+++* "LA X, Part 2"+++* "Lighthouse"+++ "The Last Recruit"+++* "The Candidate"+++* "What They Died For"+++* "The End"+++* "The End"+++*
Kate Austen	19	10	3	1	5	"Pilot, Part 2"* "Tabula Rasa" "Whatever the Case May Be" "Born to Run" "Exodus, Part 1"* "What Kate Did" "I Do" "Left Behind" "Eggtown"++ "There's No Place Like Home, Part 1"++* "There's No Place Like Home, Part 3"++* "The Little Prince"** "Whatever Happened, Happened" "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "What Kate Does"+++ "The End"+++* "The End"+++*
John Locke	18	11	0	0	7	"Walkabout"+ "Deus Ex Machina" "Exodus, Part 3"* "Orientation" "Lockdown" "Further Instructions" "The Man from Tallahassee" "The Brig"+ "Cabin Fever" "The Life and Death of Jeremy Bentham"+ "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "The Substitute"+++ "The Last Recruit"+++* "The Candidate"+++* "The End"+++* "The End"+++*
Sun-Hwa Kwon	15	7	3	1	4	"House of the Rising Sun" "Exodus, Part 1"* "...And Found"* "The Whole Truth" "The Glass Ballerina"* "D.O.C." "Ji Yeon"++* "There's No Place Like Home, Part 1"++* "There's No Place Like Home, Part 3"++* "This Place Is Death"*** "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "The Package"+++* "The Last Recruit"+++*
Hugo "Hurley" Reyes	14	6	3	1	4	"Numbers" "Exodus, Part 3"* "Everybody Hates Hugo" "Dave"* "Tricia Tanaka Is Dead" "The Beginning of the End"++ "There's No Place Like Home, Part 1"++* "There's No Place Like Home, Part 2"++* "The Lie"** "The Incident, Part 2"* "LA X, Part 1"+++* "LA X, Part 2"+++* "Everybody Loves Hugo"+++ "The End"+++*
Sayid Jarrah	13	6	3	0	4	"Solitary" "The Greater Good" "One of Them" "Enter 77" "The Economist"++ "There's No Place Like Home, Part 1"++* "There's No Place Like Home, Part 3"++* "He's Our You" "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "Sundown"+++ "The Last Recruit"+++*
James "Sawyer" Ford	14	6	1	0	7	"Confidence Man" "Outlaws" "Exodus, Part 1"* "The Long Con" "Every Man for Himself" "LaFleur"+ "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "Recon"+++ "The Last Recruit"+++* "What They Died For"+++* "The End"+++* "The End"+++*
Jin-Soo Kwon	13	6	0	1	6	"...In Translation" "Exodus, Part 2"* "...And Found"* "The Glass Ballerina"* "Ji Yeon"* "This Place Is Death"*** "The Incident, Part 1"* "LA X, Part 1"+++* "LA X, Part 2"+++* "The Package"+++* "The Last Recruit"+++*
Desmond Hume	9	5	0	1	3	"Live Together, Die Alone, Part 1"+ "Live Together, Die Alone, Part 2"+ "Flashes Before Your Eyes"+ "Catch-22" "The Constant" "Jughead"** "Happily Ever After"+++ "What They Died For"+++ "The End"+++*
Charlie Pace	6	6	0	0	0	"Pilot, Part 2"* "The Moth" "Homecoming" "Exodus, Part 2"* "Fire + Water" "Greatest Hits"+
Michael Dawson	5	5	0	0	0	"Special"* "Exodus, Part 2"* "Adrift" "Three Minutes"+ "Meet Kevin Johnson"
Benjamin Linus	7	2	1	0	4	"The Man Behind the Curtain"+ "The Shape of Things to Come"++ "Dead Is Dead"+ "Dr. Linus"+++ "What They Died For"+++* "The End"+++* "The End"+++*
Claire Littleton	6	3	0	0	3	"Raised by Another" "Maternity Leave"+ "Par Avion" "The Last Recruit"+++* "The End"+++* "The End"+++*
Juliet Burke	5	5	0	0	0	"A Tale of Two Cities"*+ "Not in Portland" "One of Us"+ "The Other Woman"+ "The Incident, Part 2"*
Mr. Eko	3	3	0	0	0	"The 23rd Psalm" "?" "The Cost of Living"
Jacob	3	2	0	1	0	"The Incident, Part 1"* "The Incident, Part 2"** "Across the Sea"+*
Miles Straume	3	2	0	0	1	"Confirmed Dead"* "Some Like It Hoth" "The End"+++*
Walt Lloyd	2	2	0	0	0	"Special"* "Exodus, Part 1"*
Shannon Rutherford	2	2	0	0	0	"Exodus, Part 1"* "Abandoned"
Ana Lucia Cortez	2	2	0	0	0	"Collision" "Two for the Road"
Daniel Faraday	2	2	0	0	0	"Confirmed Dead"* "The Variable"
Frank Lapidus	2	2	0	0	0	"Confirmed Dead"* "Namaste"+**
Richard Alpert	2	1	0	1	0	"Follow the Leader"** "Ab Aeterno"+
Ilana Verdansky	2	2	0	0	0	"The Incident, Part 1"* "Ab Aeterno"*
The Man in Black	2	2	0	0	0	"Ab Aeterno"*+ "Across the Sea"*+
Boone Carlyle	1	1	0	0	0	"Hearts and Minds"
Libby Smith	1	1	0	0	0	"Dave"*
Rose Nadler and Bernard Nadler	1	1	0	0	0	"S.O.S."*
Nikki Fernandez and Paulo	1	1	0	0	0	"Exposé"+*
Charlotte Lewis	1	1	0	0	0	"Confirmed Dead"*
Naomi Dorrit	1	1	0	0	0	"Confirmed Dead"*
Pierre Chang	1	1	0	0	0	"Because You Left"+*

^{+ - flashback at least partially set on the Island.}

^{++ - flashforwards.}

^{* - episode features more than one character's flashbacks or flashforwards.}

^{** - episode has little to no flashbacks or flashforwards}

^{+++ - Flash-sideways}

Notes

This tally is of major, character-centric flashbacks which take place over the space of an episode of LOST.

• Does not include the events of "The Other 48 Days", as there are no distinct flashbacks.
• Clip shows are disregarded, because they do not contain any new information.
• Nikki & Paulo and Rose & Bernard are grouped together, to avoid repetition of information.
• Flashbacks of Shannon & Boone, and Jin & Sun are not grouped together, because they are, for the most part, character-centric, unlike "S.O.S." and "Exposé".
• The episode "Flashes Before Your Eyes" included past events in the form of a "Déjà vu" which was unlike previous flashbacks.

See also

• Flashbacks
• Portal:Flashback Characters