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Season guide

The X Factor: Series 15

28 episodes Premiered Aug 31, 2018 Updated Oct 28, 2026
Previously on The X Factor

Season 15 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of The X Factor Season 14.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 15 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 15 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 15: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

11%
89%
Mytharc (3): Crucial lore & season climaxes
Core (25): Character development & subplots
Side Quest (0): Standalone / filler
S15·E1 Mytharc

Episode 1

Sep 1, 2018 · 60 min

Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams return for an exciting fifteenth season of the UK's biggest singing competition, starting with arena auditions at S

S15·E2 Core

Episode 2

Sep 2, 2018 · 60 min

The search for a new music superstar continues with the second of the Auditions shows

S15·E3 Core

Episode 3

Sep 8, 2018 · 60 min

The search for a new music superstar continues as The X Factor returns to ITV. Heralding the start of a new era for the nation’s most talked about entertainment show, is a brand-ne

S15·E4 Core

Episode 4

Sep 9, 2018 · 60 min

The search for a new music superstar continues as The X Factor returns to ITV. Heralding the start of a new era for the nation’s most talked about entertainment show, is a brand-ne

S15·E5 Core

Episode 5

Sep 15, 2018 · 60 min

The SSE Arena Wembley is the location as the audition rounds continue in the talent contest, hosted by Dermot O’Leary. Judges Robbie Williams, Ayda Williams, Louis Tomlinson and Si

S15·E6 Core

Episode 6

Sep 16, 2018 · 60 min

The search for a new music superstar heats up as the auditions continue at the SSE Arena.

S15·E7 Core

Episode 7

Sep 22, 2018 · 60 min

The search for a new music superstar heats up as the auditions continue. Judges Robbie Williams, Ayda Williams, Louis Tomlinson and Simon Cowell audition more hopefuls at the SSE A

S15·E8 Core

Episode 8

Sep 23, 2018 · 60 min

The search for a new music superstar heats up as the auditions continue. Joining music mogul Simon Cowell as judges are Robbie Williams, Ayda Williams and Louis Tomlinson.

S15·E9 Core

Six Chair Challenge 1

Sep 29, 2018 · 60 min

The Six Chair Challenge returns, promising amazing performances alongside agonising decisions for judges Robbie Williams, Ayda Williams, Louis Tomlinson and Simon Cowell, as they m

S15·E10 Core

Six Chair Challenge 2

Sep 30, 2018 · 60 min

Dermot O'Leary hosts the second of the three Six Chair Challenge episodes, in which the acts perform individually before the judges choose who will be selected for the next stage.

S15·E11 Core

Six Chair Challenge 3

Oct 6, 2018 · 60 min

The final Six Chair Challenge episodes, in which the acts perform individually before the judges choose who will be selected for the next stage.

S15·E12 Core

Judges' Houses 1

Oct 7, 2018 · 60 min

The remaining 24 acts jet off to the Judges' Houses stage. Offering a glimpse into the jetset lifestyle that the winner could have, the contestants travel to glamorous destinations

S15·E13 Core

Judges' Houses 2

Oct 13, 2018 · 60 min

The competition reaches its next stage as the remaining acts jet off to the Judges' Houses, where they have a final chance to make a good impression.

S15·E17 Core

Live Show 2

Oct 27, 2018 · 60 min

Each of the acts will need to show their adaptability as well as singing talent in order to survive another week in the competition.

S15·E18 Core

Results Show 2

Oct 28, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E19 Core

Live Show 3

Nov 3, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E20 Core

Live Show 3 Results

Nov 4, 2018 · 60 min

Dermot O'Leary hosts as the nerve-racking live shows continue; each of the acts will need to show their adaptability as well as singing talent in order to survive another week in t

S15·E21 Core

Live Show 4

Nov 10, 2018 · 60 min

Dermot O'Leary hosts as the nerve-racking live shows continue.

S15·E23 Core

Live show 5

Nov 17, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E24 Core

Live results 5

Nov 18, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E25 Core

Live Show 6

Nov 24, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E26 Core

Results Show 6

Nov 25, 2018 · 60 min

Each of the acts will need to show its adaptability as well as singing talent in order to survive another week in the competition; Dermot O'Leary hosts.

S15·E27 Mytharc

Final Saturday

Dec 1, 2018 · 60 min

The final acts perform in the hope of impressing the judges and the audience at home, while a lineup of guest performers takes to the stage.

S15·E28 Mytharc

Final Sunday

Dec 2, 2018 · 60 min

Dermot O'Leary hosts the tension-packed season finale as the X Factor 2018 winner is crowned.

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