Season 1 (2007)

  1. Peter's S1E1

    Airdate:
    Location:Babylon, New York
    Owners:Tina Pellegrino
    Fate:Closed in December 2008
  2. Dillon's / Purnima S1E2

    Airdate:
    Location:New York, New York
    Owners:Mohammad Islaam
    Fate:Closed in 2009
  3. The Mixing Bowl S1E3

    Airdate:
    Location:Bellmore, New York
    Owners:Billy & Lisa Galletti
    Fate:Closed in January 2009
  4. Seascape Inn S1E4

    Airdate:
    Location:Islip, New York
    Owners:Irene & son Peter
    Fate:Closed in August 2007
  5. The Olde Stone Mill S1E5

    Airdate:
    Location:Tuckahoe, New York
    Owners:Dean & Barbara Marrazzo
    Fate:Sold and rebranded in 2009
  6. Sebastian's S1E6

    Airdate:
    Location:Burbank / Toluca Lake, California
    Owners:Sebastian De Modica
    Fate:Closed in January 2008
  7. Finn McCool's S1E7

    Airdate:
    Location:Westhampton, New York
    Owners:Andrew "Buddy" Mazzio (✝ 2023) & sons
    Fate:Sold in 2009, closed in 2012
  8. Lela's S1E8

    Airdate:
    Location:Pomona, California
    Owners:Lela Guillen
    Fate:Closed in 2007 before episode aired
  9. Campania S1E9

    Airdate:
    Location:Fair Lawn, New Jersey
    Owners:Joseph "Joe" Cerniglia
    Fate:Sold in September 2010
    Closed in January 2011

    The owner of Campania committed suicide in 2010, with some media attention directed towards Kitchen Nightmares in the aftermath. I'm guessing it's possible the episode is not available online for that reason.

  10. The Secret Garden S1E10

    Airdate:
    Location:Moorpark, California
    Owners:Michel Bardavid
    Fate:Sold and closed/replaced in 2015

Season 2 (2008–09)

  1. Revisited: Gordon Returns S2E1

    Airdate:
    Restaurants:
    • Finn McCool's
    • The Olde Stone Mill
    • The Mixing Bowl
    • Dillon's
    • Campania
    • Peter's
  2. Handlebar S2E2

    Airdate:
    Location:Mount Sinai, New York
    Owners:Carolyn & William "Billy" (✝ 2015) LeRoy
    Fate:Closed in 2009
  3. Giuseppi's S2E3

    Airdate:
    Location:Macomb Township, Michigan
    Owners:Joe & Kathy Borgia
    Fate:Closed in July 2009
  4. Trobiano's S2E4

    Airdate:
    Location:Great Neck, New York
    Owners:Anthony Trobiano & in-laws
    Fate:Closed in October 2008
  5. Black Pearl S2E5

    Airdate:
    Location:New York City, New York
    Owners:David Leonard, Brian, Greg Ryan
    Fate:Closed 29 September 2008
  6. J Willy's S2E6

    Airdate:
    Location:South Bend, Indiana
    Owners:Rick & Tricia, John William
    Fate:Closed 4 February 2009
  7. Hannah & Mason's S2E7

    Airdate:
    Location:Cranbury, New Jersey
    Owners:Chris Posner & Brian Kelly
    Fate:Closed in February 2010
  8. Jack's Waterfront S2E8

    Airdate:
    Location:St. Clair Shores, Michigan
    Owners:Tammer, Bill, Scott
    Fate:Closed in December 2010
  9. Sabatiello's S2E9

    Airdate:
    Location:Stamford, Connecticut
    Owners:Sammy Settembre
    Fate:Closed in December 2008
    Owner arrested for credit fraud and vandalism
  10. Fiesta Sunrise S2E10

    Airdate:
    Location:West Nyack, New York
    Owners:Patti, Vic & Yolanda Flores
    Fate:Closed in September 2008
  11. Santé La Brea S2E11

    Airdate:
    Location:Los Angeles, California
    Owners:Dean Hamoui, sons Arthur & Sammy
    Fate:Closed and sold in June 2011
  12. Cafe 36 S2E12

    Airdate:
    Location:La Grange, Illinois
    Owners:Terry & Carol Gilmer
    Fate:Closed in April 2009

Season 3 (2010)

  1. Hot Potato Cafe S3E1

    Airdate:
    Location:Fishtown, Philadelphia, Pennsylvania
    Owners:Claire, Kathryn, Erin
    Fate:Closed and sold in June/August 2010
  2. Flamangos / The Junction S3E2

    Airdate:
    Location:Whitehouse Station, New Jersey
    Owners:Adele & Bill Csepi, Cheryl Csepi
    Fate:Closed in April 2011
  3. Bazzini S3E3

    Airdate:
    Location:Ridgewood, New Jersey
    Owners:Paul & Leslie Bazzini
    Fate:Closed in 2010
  4. Mojito S3E4

    Airdate:
    Location:Brooklyn, New York
    Owners:Marcelo & Katalina
    Fate:Closed 2 March 2016
  5. Lido di Manhattan S3E5

    Airdate:
    Location:Manhattan Beach, California
    Owners:Lisa Marie Hemmat
    Fate:Open as of 2023
  6. Le Bistro S3E6

    Airdate:
    Location:Lighthouse Point, Florida
    Owners:Andy & Elin Trousdale
    Fate:Open as of 2023
  7. Casa Roma S3E7

    Airdate:
    Location:Lancaster, California
    Owners:Nylah & son Jeremy
    Fate:Closed on 1 July 2017
    Rebranded 2014–15
  8. Mama Rita's S3E8

    Airdate:
    Location:Newbury Park, California
    Owners:Laura Papenfus
    Fate:Closed in December 2010
    Continued in catering
  9. Anna Vincenzo's S3E9

    Airdate:
    Location:Boca Raton, Florida
    Owners:CeCe
    Fate:Closed in April 2010
  10. Revisited No. 2 S3E10

    Airdate:
    Restaurants:
    • Santé La Brea
    • Finn McCool's
    • Giuseppi's
  11. Fleming S3E11

    Airdate:
    Location:Miami, Florida
    Owners:Suzanne & Andy
    Fate:Closed in October 2010
  12. Sushi-Ko S3E12

    Airdate:
    Location:Thousand Oaks, California
    Owners:Akira & Lisa Hatae
    Fate:Closed in August 2009
  13. Revisited No. 3 S3E13

    Airdate:
    Restaurants:
    • Handlebar
    • Casa Roma
    • Black Pearl

Season 4 (2011)

  1. Spanish Pavilion S4E1

    Airdate:
    Location:Harrison, New Jersey
    Owners:Balbina Fernandez, sons Jerry & Michael
    Fate:Open as of 2023
  2. Classic American S4E2

    Airdate:
    Location:West Babylon, New York
    Owners:Colleen & Naomi
    Fate:Closed in 2013
  3. PJ's Steakhouse / PJ's Grill S4E3

    Airdate:
    Location:Queens, New York
    Owners:Joe & Madalyn
    Fate:Closed in May 2010
  4. Revisited No. 4 S4E4

    Airdate:
    Restaurants:
    • Mojito
    • Flamangos / The Junction
    • Bazzini
  5. Grasshopper Also S4E5

    Airdate:
    Location:Carlstadt, New Jersey
    Owners:Mitch & Maureen Sandler + in-law Chief
    Fate:Closed and sold in October 2012
  6. Davide S4E6

    Airdate:
    Location:Boston, Massachusetts
    Owners:Frank & Anthony Gesualdi
    Fate:Sold and then closed in 2014
  7. Down City S4E7

    Airdate:
    Location:Providence, Rhode Island
    Owners:Abby Cabral & Rico Conforti
    Fate:Closed in December 2011
  8. Revisited No. 5 S4E8

    Airdate:
    Restaurants:
    • Le Bistro
    • Anna Vincenzo's
    • Lido di Manhattan
  9. Tavolini S4E9

    Airdate:
    Location:Bridgeport, Connecticut
    Owners:Keith & Lisa Restivo
    Fate:Closed in December 2011
  10. Kingston's Cafe S4E10

    Airdate:
    Location:Pasadena, California
    Owners:Dr. Una Morris
    Fate:Converted to catering in 2018
  11. La Frite S4E11

    Airdate:
    Location:Sherman Oaks, California
    Owners:Andre Ramillon
    Fate:Sold in 2016, rebranded in 2017, closed in 2022
  12. Capri S4E12

    Airdate:
    Location:Eagle Rock, California
    Owners:Jeff & Jim Thiel
    Fate:Closed in 2019
  13. Zeke's S4E13

    Airdate:
    Location:Metairie, Louisiana
    Owners:Darryl & Ellen Cortello
    Fate:Sold and closed in October 2012
  14. Oceana S4E14

    Airdate:
    Location:New Orleans, Louisiana
    Owners:Moe & Rami
    Fate:Open as of 2023 under new ownership

    Oceana sued Kitchen Nightmares multiple times to prevent airing and re-uploading of the episode. While not successful, I'm guessing the resulting settlement may be responsible for this episode not being available online.

Season 5 (2011–12)

  1. Blackberry's S5E1

    Airdate:
    Location:Plainfield, New Jersey
    Owners:Shelly Winters
    Fate:Closed in 2013
  2. Leone's S5E2

    Airdate:
    Location:Montclair, New Jersey
    Owners:Rosemary Leone, Michael Leone
    Fate:Open as of 2023
  3. Mike & Nellie's S5E3

    Airdate:
    Location:Oakhurst, New Jersey
    Owners:Mike Farber
    Fate:Closed in January 2012
  4. Luigi's D'Italia S5E4

    Airdate:
    Location:Anaheim, California
    Owners:Luigi Catizone
    Fate:Open as of 2023, moved in 2017
  5. Revisited No. 6 S5E5

    Airdate:
    Restaurants:
    • Down City
    • Classic American
    • Davide
  6. Burger Kitchen, Part 1 S5E6

    Airdate:
    Location:Los Angeles, California
    Owners:Alan Saffron
    Fate:Sold in 2011, closed in 2012
  7. Burger Kitchen, Part 2 S5E7

    Airdate:
    Location:Los Angeles, California
    Owners:Alan Saffron
    Fate:Sold in 2011, closed in 2012
  8. The Greek at the Harbour S5E8

    Airdate:
    Location:Ventura, California
    Owners:Makis & Lynn Mikelatos
    Fate:Open as of 2023
  9. Michon's S5E9

    Airdate:
    Location:College Park, Georgia
    Owners:Al & Gaye Wilson
    Fate:Branches closed in 2012, 2013, 2018
  10. El Greco S5E10

    Airdate:
    Location:Austin, Texas
    Owners:Jake & Athina Konstantinidis
    Fate:Closed in December 2011
  11. Revisited No. 7 S5E11

    Airdate:
    Restaurants:
    • Spanish Pavilion
    • Kingston Cafe
    • Capri
    • La Frite
  12. Park's Edge S5E12

    Airdate:
    Location:Imman Park, Atlanta, Georgia
    Owners:Richard & Jorge
    Fate:Closed in 2014
  13. Spin-A-Yarn Steakhouse S5E13

    Airdate:
    Location:Fremont, California
    Owners:Saki Kavouniaris
    Fate:Open as of 2023
  14. Charlie's S5E14

    Airdate:
    Location:La Verne, California
    Owners:Tatiana Leiva, Pat & Val Leiva
    Fate:Closed in 2012
  15. Cafe Hon S5E15

    Airdate:
    Location:Baltimore, Maryland
    Owners:Denise Whiting
    Fate:Closed in 2022
  16. Chiarella's S5E16

    Airdate:
    Location:Philadelphia, Pennsylvania
    Owners:Tommy & Dina Delphino
    Fate:Closed in 2015
  17. Zocalo S5E17

    Airdate:
    Location:Philadelphia, Pennsylvania
    Owners:Greg & Mary Russell
    Fate:Closed in January 2013

Season 6 (2012–13)

  1. La Galleria 33, Part 1 S6E1

    Airdate:
    Location:Boston, Massachusetts
    Owners:Rita Moran & Lisa Cerundolo
    Fate:Closed in 2018

    Both La Galleria 33 episodes have been made available as a "double full episode" as well.

  2. La Galleria 33, Part 2 S6E2

    Airdate:
    Location:Boston, Massachusetts
    Owners:Rita Moran & Lisa Cerundolo
    Fate:Closed in 2018
  3. Sal's Pizzeria / Mama Maria's S6E3

    Airdate:
    Location:Brooklyn, New York
    Owners:John Esposito
    Fate:Closed in 2023 (retirement)
  4. Ms. Jean's Southern Cuisine S6E4

    Airdate:
    Location:Wilkinsburg, Pittsburgh, Pennsylvania
    Owners:Jean Gould
    Fate:Moved in 2012, closed October 2022
    reportedly continued as catering
  5. Barefoot Bob's S6E5

    Airdate:
    Location:Hull, Massachusetts
    Owners:Marc and Lisa Caradona(?)
    Fate:Closed in 2016
  6. Revisited No. 8 S6E6

    Airdate:
    Restaurants:
    • Cafe Hon
    • Chiarella's
    • Leone's
  7. Olde Hitching Post Restaurant and Tavern S6E7

    Airdate:
    Location:Hanson, Massachusetts
    Owners:Tom Kessaris
    Fate:Open as of 2023
  8. Levanti's Italian Restaurant / Levanti's American Bistro S6E8

    Airdate:
    Location:Beaver, Pennsylvania
    Owners:Dino & Tina Fratangeli
    Fate:Closed in November 2013
  9. Sam's Mediterranean Kabob Room S6E9

    Airdate:
    Location:Monrovia, California
    Owners:Sam Najarr
    Fate:Closed in 2014
  10. Nino's Italian Restaurant S6E10

    Airdate:
    Location:Long Beach, California
    Owners:Inga & Vincenzo Cristiano (✝ 2014)
    Fate:Closed in 2016

    Nino's and S6E16 (Amy's Baking Company) have also been made available as a "double full episode".

  11. Mill Street Bistro, Part 1 S6E11

    Airdate:
    Location:Norwalk, Ohio
    Owners:Joe Nagy
    Fate:Renamed in 2013, closed in 2016

    Both Mill Street Bistro episodes have been made available as a "double full episode" as well.

  12. Mill Street Bistro, Part 2 S6E12

    Airdate:
    Location:Norwalk, Ohio
    Owners:Joe Nagy
    Fate:Renamed in 2013, closed in 2016
  13. Yanni's S6E13

    Airdate:
    Location:Seattle, Washington
    Owners:Peter Avgoustiou
    Fate:Open as of 2023
  14. Prohibition Grille / Prohibition Gastropub S6E14

    Airdate:
    Location:Everett, Washington
    Owners:Rishi Brown
    Fate:Closed in 2017
  15. Chappy's S6E15

    Airdate:
    Location:Nashville, Tennessee
    Owners:Starr & John "Chappy" Chapman
    Fate:Closed in 2013 after seizure for tax evasion
  16. Amy's Baking Company S6E16

    Airdate:
    Location:Scottsdale, Arizona
    Owners:Amy & Samy Bouzaglo
    Fate:Closed in 2015

    Amy's Baking Company and S6E10 (Nino's) have also been made available as a "double full episode".

Season 7 (2014)

This season has also been made available in full as Season 7: The Final Seasoning and (with one episode missing and one duplicated) as Season 7 Marathon.

  1. Return to Amy's Baking Company S7E1

    Airdate:
    Location:Scottsdale, Arizona
    Owners:Amy & Samy Bouzaglo
    Fate:Closed in 2015
  2. Pantaleone's S7E2

    Airdate:
    Location:Denver, Colorado
    Owners:Pete & Paulette Fafalios
    Fate:Open as of 2023
  3. Old Neighbourhood S7E3

    Airdate:
    Location:Arvada, Colorado
    Owners:Alexa & Randy
    Fate:Closed in 2016
  4. Kati Allo S7E4

    Airdate:
    Location:Queens, New York
    Owners:Manny & Christine
    Fate:Closed in April 2014
  5. Mangia Mangia, Part 1 S7E5

    Airdate:
    Location:Woodland Park, Colorado
    Owners:Julie Watson
    Fate:Closed in November 2014
  6. Mangia Mangia, Part 2 S7E6

    Airdate:
    Location:Woodland Park, Colorado
    Owners:Julie Watson
    Fate:Closed in November 2014
  7. Zayna Flaming Grill, Part 1 S7E7

    Airdate:
    Location:Redondo Beach, California
    Owners:Fay & Brenda (sold in 2015)
    Fate:Open as of 2023, moved in 2022
  8. Zayna Flaming Grill, Part 2 S7E8

    Airdate:
    Location:Redondo Beach, California
    Owners:Fay & Brenda
    Fate:Open as of 2023
    Sold in 2015, moved in 2022
  9. Bella Luna S7E9

    Airdate:
    Location:Easton, Pennsylvania
    Owners:Rosaria Scollo
    Fate:Closed in 2014
  10. Revisited No. 9 S7E10

    Airdate:
    Restaurants:
    • La Galleria 33
    • Olde Hitching Post
    • Prohibition Gastropub

Season 8 (2023)

  1. Bel Aire S8E1

    Airdate:
    Location:Astoria, New York
    Owners:
    Fate:
  2. Bask 46 S8E2

    Airdate:
    Location:Woodland Park, New Jersey
    Owners:
    Fate:
  3. In The Drink S8E3

    Airdate:
    Location:Wayne, New Jersey
    Owners:
    Fate:
  4. Da Mimmo S8E4

    Airdate:
    Location:Dumont, New Jersey
    Owners:
    Fate:
  5. Juicy Box S8E5

    Airdate:
    Location:Brooklyn, New York
    Owners:
    Fate:
  6. Love Bites S8E6

    Airdate:
    Location:Saugerties, New York
    Owners:
    Fate:
  7. El Cantito S8E7

    Airdate:
    Location:Yonkers, New York
    Owners:
    Fate:
  8. South Brooklyn Foundry S8E8

    Airdate:
    Location:Brooklyn, New York
    Owners:
    Fate:
  9. Max's Bar & Grill S8E9

    Airdate:
    Location:Long Branch, New Jersey
    Owners:
    Fate:
  10. Diwan S8E10

    Airdate:
    Location:Port Washington, New York
    Owners:
    Fate: