The list is ordered from the oldest to the most recent announcement made by the Riot staff regarding skin sales.

Pre-Seasons Seasons
Pre-Season One Season One
Pre-Season Two Season Two
Pre-Season Three Season Three
Pre-Season Four Season Four
Pre-Season Five Season Five
Pre-Season Six Season Six
Pre-Season Seven Season Seven
Early Sales


Period Sales Link
January 9
2015
January 26
2015
Two rune pages for the price of one (IP and RP)
All Tier 3 runes - 30% off
All boosts - 50% off
Summoner name change - 50% off
[1]
January 23
2015
January 26
2015
NautilusSquare Abyssal Nautilus [S|L] - 50% off
TrundleSquare Junkyard Trundle [S|L] - 50% off
CaitlynSquare Sheriff Caitlyn [S|L] - 50% off
[2]
January 27
2015
January 30
2015
AnnieSquare Frostfire Annie [S|L] - 50% off
FizzSquare Fisherman Fizz [S|L] - 50% off
SionSquare Lumberjack Sion [S|L] - 50% off
[3]
January 30
2015
February 2
2015
JannaSquare Frost Queen Janna [S|L] - 50% off
SwainSquare Northern Front Swain [S|L] - 50% off
AmumuSquare Emumu [S|L] - 50% off
[4]
February 3
2015
February 6
2015
ShacoSquare Asylum Shaco [S|L] - 50% off
MorganaSquare Blackthorn Morgana [S|L] - 50% off
NasusSquare Galactic Nasus [S|L] - 50% off
[5]
February 6
2015
February 9
2015
TeemoSquare Super Teemo [S|L] - 50% off
BrandSquare Apocalyptic Brand [S|L] - 50% off
MalzaharSquare Djinn Malzahar [S|L] - 50% off
[6]
February 10
2015
February 13
2015
JaxSquare Jaximus [S|L] - 50% off
Jarvan IVSquare Darkforge Jarvan IV [S|L] - 50% off
AsheSquare Sherwood Forest Ashe [S|L] - 50% off
[7]
February 13
2015
February 16
2015
KarthusSquare Grim Reaper Karthus [S|L] - 50% off
LeBlancSquare Wicked LeBlanc [S|L] - 50% off
Kog'MawSquare Monarch Kog'Maw [S|L] - 50% off
[8]
February 17
2015
February 20
2015
RivenSquare Battle Bunny Riven [S|L] - 50% off
ZyraSquare Haunted Zyra [S|L] - 50% off
RenektonSquare Outback Renekton [S|L] - 50% off
[9]
February 20
2015
February 23
2015
WarwickSquare Hyena Warwick [S|L] - 50% off
ShenSquare Blood Moon Shen [S|L] - 50% off
KatarinaSquare Mercenary Katarina [S|L] - 50% off
[10]
February 24
2015
February 27
2015
DianaSquare Lunar Goddess Diana [S|L] - 50% off
NidaleeSquare Headhunter Nidalee [S|L] - 50% off
TryndamereSquare King Tryndamere [S|L] - 50% off
[11]
February 27
2015
March 2
2015
ShyvanaSquare Ice Drake Shyvana [S|L] - 50% off
NunuSquare Grungy Nunu [S|L] - 50% off
FiddlesticksSquare Spectral Fiddlesticks [S|L] - 50% off
[12]
March 3
2015
March 6
2015
GravesSquare Mafia Graves [S|L] - 50% off
AmumuSquare Sad Robot Amumu [S|L] - 50% off
VladimirSquare Marquis Vladimir [S|L] - 50% off
[13]
March 6
2015
March 9
2015
HecarimSquare Reaper Hecarim [S|L] - 50% off
FioraSquare Nightraven Fiora [S|L] - 50% off
YorickSquare Undertaker Yorick [S|L] - 50% off
[14]
March 10
2015
March 13
2015
LuluSquare Wicked Lulu [S|L] - 50% off
CaitlynSquare Officer Caitlyn [S|L] - 50% off
KarmaSquare Sakura Karma [S|L] - 50% off
[15]
March 13
2015
March 16
2015
DariusSquare Bioforge Darius [S|L] - 50% off
AhriSquare Midnight Ahri [S|L] - 50% off
PantheonSquare Ruthless Pantheon [S|L] - 50% off
[16]
March 17
2015
March 20
2015
GarenSquare Dreadknight Garen [S|L] - 50% off
MalphiteSquare Glacial Malphite [S|L] - 50% off
UrgotSquare Giant Enemy Crabgot [S|L] - 50% off
[17]
March 20
2015
March 23
2015
Cho'GathSquare Jurassic Cho'Gath [S|L] - 50% off
SivirSquare Bandit Sivir [S|L] - 50% off
LuxSquare Sorceress Lux [S|L] - 50% off
[18]
March 24
2015
March 27
2015
MordekaiserSquare Lord Mordekaiser [S|L] - 50% off
RivenSquare Redeemed Riven [S|L] - 50% off
EvelynnSquare Shadow Evelynn [S|L] - 50% off
[19]
March 27
2015
March 30
2015
AsheSquare Amethyst Ashe [S|L] - 50% off
Jarvan IVSquare Dragonslayer Jarvan IV [S|L] - 50% off
WarwickSquare Tundra Hunter Warwick [S|L] - 50% off
[20]
March 31
2015
April 3
2015
SkarnerSquare Sandscourge Skarner [S|L] - 50% off
Vel'KozSquare Battlecast Vel'Koz [S|L] - 50% off
LeBlancSquare Prestigious LeBlanc [S|L] - 50% off
[21]
April 3
2015
April 6
2015
DianaSquare Dark Valkyrie Diana [S|L] - 50% off
VeigarSquare Veigar Greybeard [S|L] - 50% off
Xin ZhaoSquare Commando Xin Zhao [S|L] - 50% off
[22]
April 7
2015
April 10
2015
GravesSquare Jailbreak Graves [S|L] - 50% off
NunuSquare Demolisher Nunu [S|L] - 50% off
NocturneSquare Ravager Nocturne [S|L] - 50% off
[23]
April 10
2015
April 13
2015
RenektonSquare Rune Wars Renekton [S|L] - 50% off
AmumuSquare Little Knight Amumu [S|L] - 50% off
RyzeSquare Uncle Ryze [S|L] - 50% off
[24]
April 14
2015
April 17
2015
HecarimSquare Blood Knight Hecarim [S|L] - 50% off
VarusSquare Arctic Ops Varus [S|L] - 50% off
GangplankSquare Spooky Gangplank [S|L] - 50% off
[25]
April 17
2015
April 20
2015
MorganaSquare Ghost Bride Morgana [S|L] - 50% off
ShyvanaSquare Ironscale Shyvana [S|L] - 50% off
Master YiSquare Samurai Yi [S|L] - 50% off
[26]
April 21
2015
April 24
2015
WukongSquare Volcanic Wukong [S|L] - 50% off
ViktorSquare Full Machine Viktor [S|L] - 50% off
GarenSquare Commando Garen [S|L] - 50% off
[27]
April 27
2015
April 27
2015
TristanaSquare Guerilla Tristana [S|L] - 50% off
XerathSquare Runeborn Xerath [S|L] - 50% off
VayneSquare Vindicator Vayne [S|L] - 50% off
[28]
April 28
2015
May 1
2015
UdyrSquare Primal Udyr [S|L] - 50% off
DravenSquare Soul Reaver Draven [S|L] - 50% off
Cho'GathSquare Loch Ness Cho'Gath [S|L] - 50% off
[29]
May 1
2015
May 5
2015
KennenSquare Arctic Ops Kennen [S|L] - 50% off
SionSquare Barbarian Sion [S|L] - 50% off
CassiopeiaSquare Desperada Cassiopeia [S|L] - 50% off
[30]
May 5
2015
May 8
2015
ShacoSquare Masked Shaco [S|L] - 50% off
WarwickSquare Firefang Warwick [S|L] - 50% off
MordekaiserSquare Infernal Mordekaiser [S|L] - 50% off
[31]
May 8
2015
May 1
2015
GragasSquare Gragas, Esq. [S|L] - 50% off
CaitlynSquare Arctic Warfare Caitlyn [S|L] - 50% off
AnnieSquare Prom Queen Annie [S|L] - 50% off
[32]
May 12
2015
May 15
2015
MalzaharSquare Overlord Malzahar [S|L] - 50% off
JayceSquare Full Metal Jayce [S|L] - 50% off
EzrealSquare Frosted Ezreal [S|L] - 50% off
[33]
May 15
2015
May 18
2015
KassadinSquare Harbinger Kassadin [S|L] - 50% off
FizzSquare Tundra Fizz [S|L] - 50% off
FioraSquare Royal Guard Fiora [S|L] - 50% off
[34]
May 19
2015
May 22
2015
SorakaSquare Divine Soraka [S|L] - 50% off
RumbleSquare Rumble in the Jungle [S|L] - 50% off
OriannaSquare Sewn Chaos Orianna [S|L] - 50% off
[35]
May 22
2015
May 25
2015
AsheSquare Heartseeker Ashe [S|L] - 50% off
KarthusSquare Pentakill Karthus [S|L] - 50% off
VolibearSquare Thunder Lord Volibear [S|L] - 50% off
[36]
May 26
2015
May 29
2015
ZedSquare Shockblade Zed [S|L] - 50% off
HecarimSquare Arcade Hecarim [S|L] - 50% off
Jarvan IVSquare Commando Jarvan IV [S|L] - 50% off
[37]
May 29
2015
June 1
2015
Lee SinSquare Pool Party Lee Sin [S|L] - 50% off
FiddlesticksSquare Fiddle Me Timbers [S|L] - 50% off
Twisted FateSquare Tango Twisted Fate [S|L] - 50% off
[38]
June 2
2015
June 5
2015
ShyvanaSquare Darkflame Shyvana [S|L] - 50% off
PantheonSquare Glaive Warrior Pantheon [S|L] - 50% off
SkarnerSquare Earthrune Skarner [S|L] - 50% off
[39]
June 5
2015
June 8
2015
CassiopeiaSquare Mythic Cassiopeia [S|L] - 50% off
AniviaSquare Hextech Anivia [S|L] - 50% off
EvelynnSquare Tango Evelynn [S|L] - 50% off
[40]
June 9
2015
June 12
2015
HeimerdingerSquare Piltover Customs Heimerdinger [S|L] - 50% off
LucianSquare Hired Gun Lucian [S|L] - 50% off
BlitzcrankSquare Boom Boom Blitzcrank [S|L] - 50% off
[41]
June 12
2015
June 15
2015
RengarSquare Night Hunter Rengar [S|L] - 50% off
Miss FortuneSquare Cowgirl Miss Fortune [S|L] - 50% off
XerathSquare Battlecast Xerath [S|L] - 50% off
[42]
June 16
2015
June 19
2015
AnnieSquare Panda Annie [S|L] - 50% off
CorkiSquare Dragonwing Corki [S|L] - 50% off
RivenSquare Crimson Elite Riven [S|L] - 50% off
[43]
June 19
2015
June 22
2015
ViSquare Officer Vi [S|L] - 50% off
EzrealSquare Explorer Ezreal [S|L] - 50% off
TristanaSquare Buccaneer Tristana [S|L] - 50% off
[44]
June 23
2015
June 26
2015
RenektonSquare Scorched Earth Renekton [S|L] - 50% off
Kog'MawSquare Lion Dance Kog'Maw [S|L] - 50% off
PoppySquare Battle Regalia Poppy [S|L] - 50% off
[45]
June 26
2015
June 29
2015
GravesSquare Pool Party Graves [S|L] - 50% off
TalonSquare Crimson Elite Talon [S|L] - 50% off
FizzSquare Atlantean Fizz [S|L] - 50% off
[46]
June 30
2015
July 3
2015
LeonaSquare Pool Party Leona [S|L] - 50% off
BraumSquare Dragonslayer Braum [S|L] - 50% off
NidaleeSquare French Maid Nidalee [S|L] - 50% off
JinxSquare Mafia Jinx [S|L] - 50% off
[47]
July 3
2015
July 6
2015
ShenSquare Surgeon Shen [S|L] - 50% off
GragasSquare Superfan Gragas [S|L] - 50% off
ShacoSquare Mad Hatter Shaco [S|L] - 50% off
[48]
July 7
2015
July 10
2015
QuinnSquare Woad Scout Quinn [S|L] - 50% off
LissandraSquare Blade Queen Lissandra [S|L] - 50% off
SwainSquare Bilgewater Swain [S|L] - 50% off
[49]
July 10
2015
July 13
2015
NasusSquare Dreadknight Nasus [S|L] - 50% off
Twisted FateSquare Red Card Twisted Fate [S|L] - 50% off
CaitlynSquare Resistance Caitlyn [S|L] - 50% off
[50]
July 14
2015
July 17
2015
JaxSquare Nemesis Jax [S|L] - 50% off
SingedSquare Surfer Singed [S|L] - 50% off
IreliaSquare Nightblade Irelia [S|L] - 50% off
[51]
July 17
2015
July 20
2015
SyndraSquare Atlantean Syndra [S|L] - 50% off
AlistarSquare Sweeper Alistar [S|L] - 50% off
VeigarSquare Leprechaun Veigar [S|L] - 50% off
[52]
July 21
2015
July 24
2015
Miss FortuneSquare Secret Agent Miss Fortune [S|L] - 50% off
Xin ZhaoSquare Warring Kingdoms Xin Zhao [S|L] - 50% off
CassiopeiaSquare Siren Cassiopeia [S|L] - 50% off
[53]
July 24
2015
July 27
2015
ViSquare Neon Strike Vi [S|L] - 50% off
LuxSquare Spellthief Lux [S|L] - 50% off
AsheSquare Woad Ashe [S|L] - 50% off
[54]
July 28
2015
July 31
2015
Lee SinSquare Muay Thai Lee Sin [S|L] - 50% off
TeemoSquare Panda Teemo [S|L] - 50% off
GravesSquare Hired Gun Graves [S|L] - 50% off
[55]
July 31
2015
August 3
2015
AhriSquare Foxfire Ahri [S|L] - 50% off
MaokaiSquare Goalkeeper Maokai [S|L] - 50% off
KennenSquare Karate Kennen [S|L] - 50% off
[56]
August 4
2015
August 7
2015
WukongSquare Jade Dragon Wukong [S|L] - 50% off
SejuaniSquare Bear Cavalry Sejuani [S|L] - 50% off
LeonaSquare Valkyrie Leona [S|L] - 50% off
[57]
August 7
2015
August 10
2015
GragasSquare Oktoberfest Gragas [S|L] - 50% off
LucianSquare Striker Lucian [S|L] - 50% off
MalzaharSquare Shadow Prince Malzahar [S|L] - 50% off
[58]
August 11
2015
August 14
2015
GangplankSquare Special Forces Gangplank [S|L] - 50% off
TristanaSquare Rocket Girl Tristana [S|L] - 50% off
TalonSquare Renegade Talon [S|L] - 50% off
[59]
August 14
2015
August 17
2015
CorkiSquare Urfrider Corki [S|L] - 50% off
Twisted FateSquare Musketeer Twisted Fate [S|L] - 50% off
ShyvanaSquare Boneclaw Shyvana [S|L] - 50% off
[60]
August 18
2015
August 21
2015
IreliaSquare Frostblade Irelia [S|L] - 50% off
PantheonSquare Dragonslayer Pantheon [S|L] - 50% off
KayleSquare Viridian Kayle [S|L] - 50% off
[61]
August 21
2015
August 24
2015
AlistarSquare Infernal Alistar [S|L] - 50% off
KatarinaSquare High Command Katarina [S|L] - 50% off
RammusSquare Freljord Rammus [S|L] - 50% off
[62]
August 25
2015
August 28
2015
DariusSquare Woad King Darius [S|L] - 50% off
LuxSquare Steel Legion Lux [S|L] - 50% off
Master YiSquare Chosen Master Yi [S|L] - 50% off
[63]
August 28
2015
August 31
2015
NamiSquare River Spirit Nami [S|L] - 50% off
Lee SinSquare Acolyte Lee Sin [S|L] - 50% off
KassadinSquare Pre-Void Kassadin [S|L] - 50% off
[64]
September 1
2015
September 4
2015
PoppySquare Scarlet Hammer Poppy [S|L] - 50% off
FizzSquare Void Fizz [S|L] - 50% off
GalioSquare Enchanted Galio [S|L] - 50% off
[65]
September 4
2015
September 7
2015
SonaSquare Guqin Sona [S|L] - 50% off
EzrealSquare Debonair Ezreal [S|L] - 50% off
NidaleeSquare Pharaoh Nidalee [S|L] - 50% off
[66]
September 8
2015
September 11
2015
TwitchSquare Gangster Twitch [S|L] - 50% off
NocturneSquare Frozen Terror Nocturne [S|L] - 50% off
MaokaiSquare Totemic Maokai [S|L] - 50% off
[67]
September 8
2015
September 15
2015
YasuoSquare PROJECT: Yasuo [S|L] - 50% off [68]
September 11
2015
September 14
2015
QuinnSquare Phoenix Quinn [S|L] - 50% off
WukongSquare General Wukong [S|L] - 50% off
ShacoSquare Royal Shaco [S|L] - 50% off
[69]
September 15
2015
September 18
2015
AkaliSquare Nurse Akali [S|L] - 50% off
VladimirSquare Soulstealer Vladimir [S|L] - 50% off
FiddlesticksSquare Bandito Fiddlesticks [S|L] - 50% off
[70]
September 17
2015
September 24
2015
FioraSquare PROJECT: Fiora [S|L] - 28% off
LucianSquare PROJECT: Lucian [S|L] - 28% off
LeonaSquare PROJECT: Leona [S|L] - 28% off
ZedSquare PROJECT: Zed [S|L] - 28% off
[71]
September 18
2015
September 21
2015
TalonSquare Dragonblade Talon [S|L] - 50% off
ViSquare Debonair Vi [S|L] - 50% off
OriannaSquare Gothic Orianna [S|L] - 50% off
[72]
September 22
2015
September 25
2015
RammusSquare Ninja Rammus [S|L] - 50% off
BrandSquare Cryocore Brand [S|L] - 50% off
SingedSquare Hextech Singed [S|L] - 50% off
[73]
September 25
2015
September 28
2015
KennenSquare Kennen M.D. [S|L] - 50% off
JaxSquare Temple Jax [S|L] - 50% off
NasusSquare Galactic Nasus [S|L] - 50% off
[74]
September 29
2015
October 2
2015
ZiggsSquare Mad Scientist Ziggs [S|L] - 50% off
BlitzcrankSquare Piltover Customs Blitzcrank [S|L] - 50% off
GragasSquare Hillbilly Gragas [S|L] - 50% off
[75]
October 2
2015
October 5
2015
VarusSquare Blight Crystal Varus [S|L] - 50% off
GarenSquare Rugged Garen [S|L] - 50% off
SorakaSquare Dryad Soraka [S|L] - 50% off
[76]
October 6
2015
October 9
2015
DianaSquare Lunar Goddess Diana [S|L] - 50% off
HeimerdingerSquare Hazmat Heimerdinger [S|L] - 50% off
KatarinaSquare Mercenary Katarina [S|L] - 50% off
[77]
October 9
2015
October 12
2015
GnarSquare Dino Gnar [S|L] - 50% off
SwainSquare Northern Front Swain [S|L] - 50% off
Kog'MawSquare Monarch Kog'Maw [S|L] - 50% off
[78]
October 13
2015
October 16
2015
AhriSquare Popstar Ahri [S|L] - 50% off
Kha'ZixSquare Mecha Kha'Zix [S|L] - 50% off
TryndamereSquare King Tryndamere [S|L] - 50% off
[79]
October 16
2015
October 19
2015
CaitlynSquare Headhunter Caitlyn [S|L] - 50% off
TrundleSquare Junkyard Trundle [S|L] - 50% off
SionSquare Lumberjack Sion [S|L] - 50% off
[80]
October 20
2015
October 23
2015
RivenSquare Battle Bunny Riven [S|L] - 50% off
NautilusSquare Subterranean Nautilus [S|L] - 50% off
VayneSquare Aristocrat Vayne [S|L] - 50% off
[81]
October 23
2015
October 26
2015
AzirSquare Galactic Azir [S|L] - 50% off
LeBlancSquare Wicked LeBlanc [S|L] - 50% off
LuxSquare Commando Lux [S|L] - 50% off
[82]
October 27
2015
October 30
2015
KarmaSquare Order of the Lotus Karma [S|L] - 50% off
ViktorSquare Creator Viktor [S|L] - 50% off
AmumuSquare Emumu [S|L] - 50% off
[83]
October 30
2015
November xxx
2015
Twisted FateSquare High Noon Twisted Fate [S|L] - 50% off
NunuSquare Grungy Nunu [S|L] - 50% off
IreliaSquare Aviator Irelia [S|L] - 50% off
[84]
November 3
2015
November 6
2015
LissandraSquare Bloodstone Lissandra [S|L] - 50% off
ShyvanaSquare Ice Drake Shyvana [S|L] - 50% off
WarwickSquare Tundra Hunter Warwick [S|L] - 50% off
[85]
November 6
2015
November 9
2015
DariusSquare Lord Darius [S|L] - 50% off
MorganaSquare Blade Mistress Morgana [S|L] - 50% off
MalzaharSquare Djinn Malzahar [S|L] - 50% off
[86]
November 10
2015
November 13
2015
MaokaiSquare Charred Maokai [S|L] - 50% off
TeemoSquare Astronaut Teemo [S|L] - 50% off
PantheonSquare Myrmidon Pantheon [S|L] - 50% off
[87]

References

LoL's Official Sales page