 
 Once Upon a Time is an American fairy tale drama television series created by Edward Kitsis and Adam Horowitz, who also serve as executive producers alongside Steve Pearlman. The series begins by introducing a bail bondswoman, Emma Swan (Jennifer Morrison) and her son, Henry Mills (Jared S. Gilmore), who discover that a town named Storybrooke in Maine is a remnant of a parallel fantasy world that was cursed by Henry's adoptive mother, the Evil Queen / Regina Mills (Lana Parrilla), and that all the characters from the fairy tales have no memories of who they were, including Emma's parents, Snow White / Mary Margaret Blanchard (Ginnifer Goodwin) and Prince Charming / David Nolan (Josh Dallas), who sent her to the real world to save their world and break the curse.
During the course of the series, 155 episodes of Once Upon a Time aired over seven seasons, between October 23, 2011, and May 18, 2018.
| Season | Episodes | Originally released | Viewers (millions) | Viewers rank | 18–49 rating/share | 18-49 rank | ||
|---|---|---|---|---|---|---|---|---|
| First released | Last released | |||||||
| 1 | 22 | October 23, 2011 | May 13, 2012 | 11.71 | 28 [1] | 4.1/10 | 18 [2] | |
| 2 | 22 | September 30, 2012 | May 12, 2013 | 10.24 | 35 [3] | 3.6/9 | 18 [4] | |
| 3 | 22 | September 29, 2013 | May 11, 2014 | 9.38 | 35 [5] | 4.2/8 | 12 [6] | |
| 4 | 22 | September 28, 2014 | May 10, 2015 | 8.98 | 50 [7] | 3.2/7 | 17 [7] | |
| 5 | 23 | September 27, 2015 | May 15, 2016 | 6.32 | 69 [8] | 2.2 | 34 [8] | |
| 6 | 22 | September 25, 2016 | May 14, 2017 | 4.39 | 105 [9] | 1.5/5 | 70 [9] | |
| 7 | 22 | October 6, 2017 | May 18, 2018 | 3.41 | 120 [10] | 0.9 | 115 [11] | |
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 1 | 1 | "Pilot" | Mark Mylod | Edward Kitsis & Adam Horowitz | October 23, 2011 | 12.94 [12] | 
| 2 | 2 | "The Thing You Love Most" | Greg Beeman | Edward Kitsis & Adam Horowitz | October 30, 2011 | 11.74 [13] | 
| 3 | 3 | "Snow Falls" | Dean White | Liz Tigelaar | November 6, 2011 | 11.45 [14] | 
| 4 | 4 | "The Price of Gold" | David Solomon | David H. Goodman | November 13, 2011 | 11.36 [15] | 
| 5 | 5 | "That Still Small Voice" | Paul Edwards | Jane Espenson | November 27, 2011 | 10.69 [16] | 
| 6 | 6 | "The Shepherd" | Victor Nelli | Andrew Chambliss & Ian Goldberg | December 4, 2011 | 9.66 [17] | 
| 7 | 7 | "The Heart Is a Lonely Hunter" | David M. Barrett | Edward Kitsis & Adam Horowitz | December 11, 2011 | 8.92 [18] | 
| 8 | 8 | "Desperate Souls" | Michael Waxman | Jane Espenson | January 8, 2012 | 10.35 [19] | 
| 9 | 9 | "True North" | Dean White | David H. Goodman & Liz Tigelaar | January 15, 2012 | 9.83 [20] | 
| 10 | 10 | "7:15 A.M." | Ralph Hemecker | Story by : Edward Kitsis & Adam Horowitz Teleplay by : Daniel T. Thomsen | January 22, 2012 | 9.33 [21] | 
| 11 | 11 | "Fruit of the Poisonous Tree" | Bryan Spicer | Ian Goldberg & Andrew Chambliss | January 29, 2012 | 10.91 [22] | 
| 12 | 12 | "Skin Deep" | Milan Cheylov | Jane Espenson | February 12, 2012 | 8.65 [23] | 
| 13 | 13 | "What Happened to Frederick" | Dean White | David H. Goodman | February 19, 2012 | 9.84 [24] | 
| 14 | 14 | "Dreamy" | David Solomon | Edward Kitsis & Adam Horowitz | March 4, 2012 | 10.67 [25] | 
| 15 | 15 | "Red-Handed" | Ron Underwood | Jane Espenson | March 11, 2012 | 9.29 [26] | 
| 16 | 16 | "Heart of Darkness" | Dean White | Andrew Chambliss & Ian Goldberg | March 18, 2012 | 8.69 [27] | 
| 17 | 17 | "Hat Trick" | Ralph Hemecker | Vladimir Cvetko & David H. Goodman | March 25, 2012 | 8.82 [28] | 
| 18 | 18 | "The Stable Boy" | Dean White | Edward Kitsis & Adam Horowitz | April 1, 2012 | 8.36 [29] | 
| 19 | 19 | "The Return" | Paul Edwards | Jane Espenson | April 22, 2012 | 9.08 [30] | 
| 20 | 20 | "The Stranger" | Gwyneth Horder-Payton | Ian B. Goldberg & Andrew Chambliss | April 29, 2012 | 9.20 [31] | 
| 21 | 21 | "An Apple Red as Blood" | Milan Cheylov | Jane Espenson & David H. Goodman | May 6, 2012 | 8.95 [32] | 
| 22 | 22 | "A Land Without Magic" | Dean White | Edward Kitsis & Adam Horowitz | May 13, 2012 | 9.67 [33] | 
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 23 | 1 | "Broken" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | September 30, 2012 | 11.36 [34] | 
| 24 | 2 | "We Are Both" | Dean White | Jane Espenson | October 7, 2012 | 9.84 [35] | 
| 25 | 3 | "Lady of the Lake" | Milan Cheylov | Andrew Chambliss & Ian Goldberg | October 14, 2012 | 9.45 [36] | 
| 26 | 4 | "The Crocodile" | David Solomon | David H. Goodman & Robert Hull | October 21, 2012 | 9.89 [37] | 
| 27 | 5 | "The Doctor" | Paul Edwards | Edward Kitsis & Adam Horowitz | October 28, 2012 | 9.85 [38] | 
| 28 | 6 | "Tallahassee" | David M. Barrett | Christine Boylan & Jane Espenson | November 4, 2012 | 10.15 [39] | 
| 29 | 7 | "Child of the Moon" | Anthony Hemingway | Ian Goldberg & Andrew Chambliss | November 11, 2012 | 8.75 [40] | 
| 30 | 8 | "Into the Deep" | Ron Underwood | Kalinda Vazquez & Daniel T. Thomsen | November 25, 2012 | 8.82 [41] | 
| 31 | 9 | "Queen of Hearts" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | December 2, 2012 | 9.10 [42] | 
| 32 | 10 | "The Cricket Game" | Dean White | David H. Goodman & Robert Hull | January 6, 2013 | 9.10 [43] | 
| 33 | 11 | "The Outsider" | David Solomon | Andrew Chambliss & Ian Goldberg | January 13, 2013 | 8.24 [44] | 
| 34 | 12 | "In the Name of the Brother" | Milan Cheylov | Jane Espenson | January 20, 2013 | 7.68 [45] | 
| 35 | 13 | "Tiny" | Guy Ferland | Christine Boylan & Kalinda Vazquez | February 10, 2013 | 7.08 [46] | 
| 36 | 14 | "Manhattan" | Dean White | Edward Kitsis & Adam Horowitz | February 17, 2013 | 7.61 [47] | 
| 37 | 15 | "The Queen Is Dead" | Gwyneth Horder-Payton | Daniel T. Thomsen & David H. Goodman | March 3, 2013 | 7.39 [48] | 
| 38 | 16 | "The Miller's Daughter" | Ralph Hemecker | Jane Espenson | March 10, 2013 | 7.64 [49] | 
| 39 | 17 | "Welcome to Storybrooke" | Dave Barrett | Ian Goldberg & Andrew Chambliss | March 17, 2013 | 7.45 [50] | 
| 40 | 18 | "Selfless, Brave and True" | Ralph Hemecker | Robert Hull & Kalinda Vazquez | March 24, 2013 | 7.38 [51] | 
| 41 | 19 | "Lacey" | Milan Cheylov | Edward Kitsis & Adam Horowitz | April 21, 2013 | 7.37 [52] | 
| 42 | 20 | "The Evil Queen" | Gwyneth Horder-Payton | Jane Espenson & Christine Boylan | April 28, 2013 | 7.16 [53] | 
| 43 | 21 | "Second Star to the Right" | Ralph Hemecker | Andrew Chambliss & Ian Goldberg | May 5, 2013 | 7.50 [54] | 
| 44 | 22 | "And Straight On 'til Morning" | Dean White | Edward Kitsis & Adam Horowitz | May 12, 2013 | 7.33 [55] | 
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 45 | 1 | "The Heart of the Truest Believer" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | September 29, 2013 | 8.52 [56] | 
| 46 | 2 | "Lost Girl" | Ron Underwood | Andrew Chambliss & Kalinda Vazquez | October 6, 2013 | 8.00 [57] | 
| 47 | 3 | "Quite a Common Fairy" | Alex Zakrzewski | Jane Espenson | October 13, 2013 | 7.53 [58] | 
| 48 | 4 | "Nasty Habits" | David Boyd | David H. Goodman & Robert Hull | October 20, 2013 | 7.05 [59] | 
| 49 | 5 | "Good Form" | Jon Amiel | Christine Boylan & Daniel T. Thomsen | October 27, 2013 | 7.23 [60] | 
| 50 | 6 | "Ariel" | Ciaran Donnelly | Edward Kitsis & Adam Horowitz | November 3, 2013 | 7.55 [61] | 
| 51 | 7 | "Dark Hollow" | Guy Ferland | Kalinda Vazquez & Andrew Chambliss | November 10, 2013 | 6.71 [62] | 
| 52 | 8 | "Think Lovely Thoughts" | David Solomon | David H. Goodman & Robert Hull | November 17, 2013 | 6.66 [63] | 
| 53 | 9 | "Save Henry" | Andy Goddard | Christine Boylan & Daniel T. Thomsen | December 1, 2013 | 6.64 [64] | 
| 54 | 10 | "The New Neverland" | Ron Underwood | Andrew Chambliss | December 8, 2013 | 6.94 [65] | 
| 55 | 11 | "Going Home" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | December 15, 2013 | 6.44 [66] | 
| 56 | 12 | "New York City Serenade" | Billy Gierhart | Edward Kitsis & Adam Horowitz | March 9, 2014 | 7.66 [67] | 
| 57 | 13 | "Witch Hunt" | Guy Ferland | Jane Espenson | March 16, 2014 | 7.75 [68] | 
| 58 | 14 | "The Tower" | Ralph Hemecker | Robert Hull | March 23, 2014 | 6.91 [69] | 
| 59 | 15 | "Quiet Minds" | Eagle Egilsson | Kalinda Vazquez | March 30, 2014 | 6.64 [70] | 
| 60 | 16 | "It's Not Easy Being Green" | Mario Van Peebles | Andrew Chambliss | April 6, 2014 | 7.26 [71] | 
| 61 | 17 | "The Jolly Roger" | Ernest Dickerson | David H. Goodman | April 13, 2014 | 6.50 [72] | 
| 62 | 18 | "Bleeding Through" | Romeo Tirone | Jane Espenson & Daniel T. Thomsen | April 20, 2014 | 5.95 [73] | 
| 63 | 19 | "A Curious Thing" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | April 27, 2014 | 7.34 [74] | 
| 64 | 20 | "Kansas" | Gwyneth Horder-Payton | Andrew Chambliss & Kalinda Vazquez | May 4, 2014 | 6.86 [75] | 
| 65 | 21 | "Snow Drifts" | Ron Underwood | David H. Goodman & Robert Hull | May 11, 2014 | 6.80 [76] | 
| 66 | 22 | "There's No Place Like Home" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | May 11, 2014 | 6.80 [76] | 
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 67 | 1 | "A Tale of Two Sisters" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | September 28, 2014 | 10.20 [77] | 
| 68 | 2 | "White Out" | Ron Underwood | Jane Espenson | October 5, 2014 | 9.24 [78] | 
| 69 | 3 | "Rocky Road" | Morgan Beggs | David H. Goodman & Jerome Schwartz | October 12, 2014 | 7.92 [79] | 
| 70 | 4 | "The Apprentice" | Ralph Hemecker | Andrew Chambliss & Dana Horgan | October 19, 2014 | 8.07 [80] | 
| 71 | 5 | "Breaking Glass" | Alrick Riley | Kalinda Vazquez & Scott Nimerfro | October 26, 2014 | 6.87 [81] | 
| 72 | 6 | "Family Business" | Mario Van Peebles | Kalinda Vazquez & Andrew Chambliss | November 2, 2014 | 7.54 [82] | 
| 73 | 7 | "The Snow Queen" | Billy Gierhart | Edward Kitsis & Adam Horowitz | November 9, 2014 | 7.42 [83] | 
| 74 | 8 | "Smash the Mirror" | Eagle Egilsson | David H. Goodman & Jerome Schwartz | November 16, 2014 | 6.80 [84] | 
| Ralph Hemecker | ||||||
| 75 | 9 | "Fall" | Mario Van Peebles | Jane Espenson | November 30, 2014 | 6.43 [85] | 
| 76 | 10 | "Shattered Sight" | Gwyneth Horder-Payton | Scott Nimerfro & Tze Chun | December 7, 2014 | 6.20 [86] | 
| 77 | 11 | "Heroes and Villains" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | December 14, 2014 | 5.69 [87] | 
| 78 | 12 | "Darkness on the Edge of Town" | Jon Amiel | Edward Kitsis & Adam Horowitz | March 1, 2015 | 6.66 [88] | 
| 79 | 13 | "Unforgiven" | Adam Horowitz | Andrew Chambliss & Kalinda Vazquez | March 8, 2015 | 6.72 [89] | 
| 80 | 14 | "Enter the Dragon" | Ralph Hemecker | David H. Goodman & Jerome Schwartz | March 15, 2015 | 5.88 [90] | 
| 81 | 15 | "Poor Unfortunate Soul" | Steve Pearlman | Andrew Chambliss & Dana Horgan | March 22, 2015 | 5.79 [91] | 
| 82 | 16 | "Best Laid Plans" | Ron Underwood | Kalinda Vazquez & Jane Espenson | March 29, 2015 | 5.48 [92] | 
| 83 | 17 | "Heart of Gold" | Billy Gierhart | Tze Chun & Scott Nimerfro | April 12, 2015 | 5.17 [93] | 
| 84 | 18 | "Sympathy for the De Vil" | Romeo Tirone | David H. Goodman & Jerome Schwartz | April 19, 2015 | 5.12 [94] | 
| 85 | 19 | "Lily" | Ralph Hemecker | Andrew Chambliss & Dana Horgan | April 26, 2015 | 5.21 [95] | 
| 86 | 20 | "Mother" | Ron Underwood | Jane Espenson | May 3, 2015 | 5.31 [96] | 
| 87 | 21 | "Operation Mongoose " | Romeo Tirone | Edward Kitsis & Adam Horowitz | May 10, 2015 | 5.51 [97] | 
| 88 | 22 | Ralph Hemecker | ||||
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 89 | 1 | "The Dark Swan" | Ron Underwood | Edward Kitsis & Adam Horowitz | September 27, 2015 | 5.93 [98] | 
| 90 | 2 | "The Price" | Romeo Tirone | Andrew Chambliss & Dana Horgan | October 4, 2015 | 5.38 [99] | 
| 91 | 3 | "Siege Perilous" | Ralph Hemecker | Jane Espenson | October 11, 2015 | 5.28 [100] | 
| 92 | 4 | "The Broken Kingdom" | Alrick Riley | David H. Goodman & Jerome Schwartz | October 18, 2015 | 4.92 [101] | 
| 93 | 5 | "Dreamcatcher" | Romeo Tirone | Edward Kitsis & Adam Horowitz | October 25, 2015 | 5.12 [102] | 
| 94 | 6 | "The Bear and the Bow " | Ralph Hemecker | Andrew Chambliss & Tze Chun | November 1, 2015 | 4.83 [103] | 
| 95 | 7 | "Nimue" | Romeo Tirone | Jane Espenson | November 8, 2015 | 4.88 [104] | 
| 96 | 8 | "Birth" | Eagle Egilsson | David H. Goodman & Jerome Schwartz | November 15, 2015 | 4.85 [105] | 
| 97 | 9 | "The Bear King" | Geofrey Hildrew | Andrew Chambliss | November 15, 2015 | 4.85 [105] | 
| 98 | 10 | "Broken Heart" | Romeo Tirone | Dana Horgan & Tze Chun | November 29, 2015 | 4.38 [106] | 
| 99 | 11 | "Swan Song" | Gwyneth Horder-Payton | Edward Kitsis & Adam Horowitz | December 6, 2015 | 4.56 [107] | 
| 100 | 12 | "Souls of the Departed" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | March 6, 2016 | 4.01 [108] | 
| 101 | 13 | "Labor of Love" | Billy Gierhart | Andrew Chambliss & Dana Horgan | March 13, 2016 | 4.31 [109] | 
| 102 | 14 | "Devil's Due" | Alrick Riley | Jane Espenson | March 20, 2016 | 3.54 [110] | 
| 103 | 15 | "The Brothers Jones" | Eagle Egilsson | Jerome Schwartz & David H. Goodman | March 27, 2016 | 3.51 [111] | 
| 104 | 16 | "Our Decay" | Steve Pearlman | Tze Chun & Dana Horgan | April 3, 2016 | 3.78 [112] | 
| 105 | 17 | "Her Handsome Hero" | Romeo Tirone | Jerome Schwartz | April 10, 2016 | 3.75 [113] | 
| 106 | 18 | "Ruby Slippers" | Eriq La Salle | Andrew Chambliss & Bill Wolkoff | April 17, 2016 | 3.76 [114] | 
| 107 | 19 | "Sisters" | Romeo Tirone | David H. Goodman & Brigitte Hales | April 24, 2016 | 3.85 [115] | 
| 108 | 20 | "Firebird" | Ron Underwood | Jane Espenson | May 1, 2016 | 3.77 [116] | 
| 109 | 21 | "Last Rites" | Craig Powell | Jerome Schwartz | May 8, 2016 | 3.75 [117] | 
| 110 | 22 | "Only You" | Romeo Tirone | David H. Goodman & Andrew Chambliss | May 15, 2016 | 4.07 [118] | 
| 111 | 23 | "An Untold Story" | Dean White | Edward Kitsis & Adam Horowitz | May 15, 2016 | 4.07 [118] | 
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 112 | 1 | "The Savior" | Eagle Egilsson | Edward Kitsis & Adam Horowitz | September 25, 2016 | 3.99 [119] | 
| 113 | 2 | "A Bitter Draught" | Ron Underwood | Andrew Chambliss & Dana Horgan | October 2, 2016 | 3.72 [120] | 
| 114 | 3 | "The Other Shoe" | Steve Pearlman | Jane Espenson & Jerome Schwartz | October 9, 2016 | 4.11 [121] | 
| 115 | 4 | "Strange Case" | Alrick Riley | David H. Goodman & Nelson Soler | October 16, 2016 | 3.53 [122] | 
| 116 | 5 | "Street Rats" | Norman Buckley | Edward Kitsis & Adam Horowitz | October 23, 2016 | 3.40 [123] | 
| 117 | 6 | "Dark Waters" | Robert Duncan | Andrew Chambliss & Brigitte Hales | October 30, 2016 | 3.06 [124] | 
| 118 | 7 | "Heartless" | Ralph Hemecker | Jane Espenson | November 6, 2016 | 3.56 [125] | 
| 119 | 8 | "I'll Be Your Mirror" | Jennifer Lynch | Jerome Schwartz & Leah Fong | November 13, 2016 | 3.40 [126] | 
| 120 | 9 | "Changelings" | Mairzee Almas | David H. Goodman & Brian Ridings | November 27, 2016 | 3.28 [127] | 
| 121 | 10 | "Wish You Were Here" | Ron Underwood | Edward Kitsis & Adam Horowitz | December 4, 2016 | 3.27 [128] | 
| 122 | 11 | "Tougher Than the Rest" | Billy Gierhart | Edward Kitsis & Adam Horowitz | March 5, 2017 | 3.03 [129] | 
| 123 | 12 | "Murder Most Foul" | Morgan Beggs | Jerome Schwartz & Jane Espenson | March 12, 2017 | 3.06 [130] | 
| 124 | 13 | "Ill-Boding Patterns" | Ron Underwood | Andrew Chambliss & Dana Horgan | March 19, 2017 | 2.71 [131] | 
| 125 | 14 | "Page 23" | Kate Woods | David H. Goodman & Brigitte Hales | March 26, 2017 | 2.85 [132] | 
| 126 | 15 | "A Wondrous Place" | Steve Pearlman | Jane Espenson & Jerome Schwartz | April 2, 2017 | 2.80 [133] | 
| 127 | 16 | "Mother's Little Helper" | Billy Gierhart | Story by : Edward Kitsis & Adam Horowitz Teleplay by : Paul Karp | April 9, 2017 | 2.60 [134] | 
| 128 | 17 | "Awake" | Sharat Raju | Andrew Chambliss & Leah Fong | April 16, 2017 | 2.51 [135] | 
| 129 | 18 | "Where Bluebirds Fly" | Michael Schultz | David H. Goodman & Brigitte Hales | April 23, 2017 | 2.69 [136] | 
| 130 | 19 | "The Black Fairy" | Alrick Riley | Jerome Schwartz & Dana Horgan | April 30, 2017 | 3.05 [137] | 
| 131 | 20 | "The Song in Your Heart" | Ron Underwood | David H. Goodman & Andrew Chambliss | May 7, 2017 | 2.87 [138] | 
| 132 | 21 | "The Final Battle" | Steve Pearlman | Edward Kitsis & Adam Horowitz | May 14, 2017 | 2.95 [139] | 
| 133 | 22 | Ralph Hemecker | ||||
| No. overall | No. in season | Title | Directed by | Written by | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|---|
| 134 | 1 | "Hyperion Heights" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | October 6, 2017 | 3.26 [140] | 
| 135 | 2 | "A Pirate's Life" | Tara Nicole Weyr | Jane Espenson & Jerome Schwartz | October 13, 2017 | 2.74 [141] | 
| 136 | 3 | "The Garden of Forking Paths" | Ron Underwood | David H. Goodman & Brigitte Hales | October 20, 2017 | 2.49 [142] | 
| 137 | 4 | "Beauty" | Mick Garris | Dana Horgan & Leah Fong | October 27, 2017 | 2.44 [143] | 
| 138 | 5 | "Greenbacks" | Geofrey Hildrew | Christopher Hollier & Adam Karp | November 3, 2017 | 2.29 [144] | 
| 139 | 6 | "Wake Up Call" | Sharat Raju | Jerome Schwartz & Jane Espenson | November 10, 2017 | 2.37 [145] | 
| 140 | 7 | "Eloise Gardener" | Alex Kalymnios | David H. Goodman & Brigitte Hales | November 17, 2017 | 2.28 [146] | 
| 141 | 8 | "Pretty in Blue" | Ralph Hemecker | Dana Horgan & Leah Fong | November 17, 2017 | 2.28 [146] | 
| 142 | 9 | "One Little Tear" | Steve Pearlman | Christopher Hollier & Adam Karp | December 8, 2017 | 2.45 [147] | 
| 143 | 10 | "The Eighth Witch" | Ralph Hemecker | Jane Espenson & Jerome Schwartz | December 15, 2017 | 2.29 [148] | 
| 144 | 11 | "Secret Garden" | Mick Garris | Edward Kitsis & Adam Horowitz | March 2, 2018 | 2.14 [149] | 
| 145 | 12 | "A Taste of the Heights" | Nina Lopez-Corrado | David H. Goodman & Brigitte Hales | March 9, 2018 | 2.22 [150] | 
| 146 | 13 | "Knightfall" | Steve Miner | Jerome Schwartz & Miguel Ian Raya | March 16, 2018 | 2.38 [151] | 
| 147 | 14 | "The Girl in the Tower" | Antonio Negret | Dana Horgan & Leah Fong | March 23, 2018 | 2.11 [152] | 
| 148 | 15 | "Sisterhood" | Ellen S. Pressman | Christopher Hollier & Adam Karp | March 30, 2018 | 2.03 [153] | 
| 149 | 16 | "Breadcrumbs" | Ron Underwood | Jane Espenson & Jerome Schwartz | April 6, 2018 | 2.15 [154] | 
| 150 | 17 | "Chosen" | Lana Parrilla | Paul Karp & Brian Ridings | April 13, 2018 | 2.18 [155] | 
| 151 | 18 | "The Guardian" | Geofrey Hildrew | David H. Goodman & Brigitte Hales | April 20, 2018 | 2.12 [156] | 
| 152 | 19 | "Flower Child" | Tessa Blake | Edward Kitsis & Adam Horowitz | April 27, 2018 | 1.98 [157] | 
| 153 | 20 | "Is This Henry Mills?" | Ron Underwood | Dana Horgan & Leah Fong | May 4, 2018 | 1.98 [158] | 
| 154 | 21 | "Homecoming" | Steve Pearlman | David H. Goodman | May 11, 2018 | 2.26 [159] | 
| 155 | 22 | "Leaving Storybrooke" | Ralph Hemecker | Edward Kitsis & Adam Horowitz | May 18, 2018 | 2.27 [160] | 
| No. | Title | Narrator | Aired between | Original release date | US viewers (millions) | 
|---|---|---|---|---|---|
| 1 | "Magic Is Coming" | Giancarlo Esposito | "A Land Without Magic" "Broken" | September 30, 2012 | 6.04 [161] | 
| 2 | "The Price of Magic" | Alan Dale | "Selfless, Brave and True" "Lacey" | April 14, 2013 | 5.17 [162] | 
| 3 | "Journey to Neverland" | Alfred Molina | "And Straight On 'til Morning" "The Heart of the Truest Believer" | September 29, 2013 | 5.07 [163] | 
| 4 | "Wicked Is Coming" | Dan Stevens | "Going Home" "New York City Serenade" | March 9, 2014 | 4.44 [164] | 
| 5 | "Storybrooke Has Frozen Over" | John Rhys-Davies | "There's No Place Like Home" "A Tale of Two Sisters" | September 28, 2014 | 5.50 [165] | 
| 6 | "Secrets of Storybrooke" | Jennifer Morrison | "Heroes and Villains" "Darkness on the Edge of Town" | March 1, 2015 | 4.45 [166] | 
| 7 | "Dark Swan Rises: A Once Upon a Time Fan Celebration" | Howard Parker | "Operation Mongoose, Part 2" "The Dark Swan" | September 27, 2015 | 3.20 [167] | 
| 8 | "Evil Reigns Once More" | Howard Parker | "An Untold Story" "The Savior" | September 25, 2016 | 2.86 [168] | 
| 9 | "The Final Battle Begins" | Howard Parker | "The Song in Your Heart" "The Final Battle" | May 14, 2017 | 2.82 [169] | 
| Season | Episodes | DVD and Blu-ray release date | |||
|---|---|---|---|---|---|
| Region 1 | Region 2 | Region 4 | |||
| 1 | 22 | August 28, 2012 [170] | October 31, 2012 [171] | October 17, 2012 [172] | |
| 2 | 22 | August 13, 2013 [173] | November 18, 2013 [174] | October 16, 2013 [175] | |
| 3 | 22 | August 19, 2014 [176] | March 14, 2016 [177] | November 12, 2014 [178] | |
| 4 | 22 | August 18, 2015 [179] | May 9, 2016 [180] | August 17, 2016 [181] | |
| 5 | 23 | August 16, 2016 [182] | October 17, 2016 [183] | December 7, 2016 [184] | |
| 6 | 22 | August 15, 2017 [185] | October 16, 2017 [186] | November 8, 2017 [187] | |
| 7 | 22 | August 28, 2018 [188] | October 8, 2018 [189] | July 11, 2018 [190] | |

| Season | Episode number | Average | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | |||
| 1 | 12.94 | 11.74 | 11.45 | 11.36 | 10.69 | 9.66 | 8.92 | 10.35 | 9.83 | 9.33 | 10.91 | 8.65 | 9.84 | 10.67 | 9.29 | 8.69 | 8.82 | 8.36 | 9.08 | 9.20 | 8.95 | 9.67 | 9.93 | |
| 2 | 11.36 | 9.84 | 9.45 | 9.89 | 9.85 | 10.15 | 8.75 | 8.82 | 9.10 | 9.10 | 8.24 | 7.68 | 7.08 | 7.61 | 7.39 | 7.64 | 7.45 | 7.38 | 7.37 | 7.16 | 7.50 | 7.33 | 8.46 | |
| 3 | 8.52 | 8.00 | 7.53 | 7.05 | 7.23 | 7.55 | 6.71 | 6.66 | 6.64 | 6.94 | 6.44 | 7.66 | 7.75 | 6.91 | 6.64 | 7.26 | 6.50 | 5.95 | 7.34 | 6.86 | 6.80 | 6.80 | 7.08 | |
| 4 | 10.20 | 9.24 | 7.92 | 8.07 | 6.87 | 7.54 | 7.42 | 6.80 | 6.43 | 6.20 | 5.69 | 6.66 | 6.72 | 5.88 | 5.79 | 5.48 | 5.17 | 5.12 | 5.21 | 5.31 | 5.51 | 5.51 | 6.58 | |

| Season | Episode number | Average | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |||
| 5 | 5.93 | 5.38 | 5.28 | 4.92 | 5.12 | 4.83 | 4.88 | 4.85 | 4.85 | 4.38 | 4.56 | 4.01 | 4.31 | 3.54 | 3.51 | 3.78 | 3.75 | 3.76 | 3.85 | 3.77 | 3.75 | 4.07 | 4.07 | 4.40 | |
| 6 | 3.99 | 3.72 | 4.11 | 3.53 | 3.40 | 3.06 | 3.56 | 3.40 | 3.28 | 3.27 | 3.03 | 3.06 | 2.71 | 2.85 | 2.80 | 2.60 | 2.51 | 2.69 | 3.05 | 2.87 | 2.95 | 2.95 | – | 3.15 | |
| 7 | 3.26 | 2.74 | 2.49 | 2.44 | 2.29 | 2.37 | 2.28 | 2.28 | 2.45 | 2.29 | 2.14 | 2.22 | 2.38 | 2.11 | 2.03 | 2.15 | 2.18 | 2.12 | 1.98 | 1.98 | 2.26 | 2.27 | – | 2.31 | |
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