The twenty-first episode of Season 13, and the three hundred and eighth episode of America's Got Talent overall, aired on September 18, 2018. It was the Finals performance episode and took place at the Dolby Theatre. The top 10 acts performed for the title of Season 13 winner, one million dollars, and the headlining of a show on the Las Vegas strip.
|1. Brian King Joseph||Electric Violinist|
|2. Daniel Emmet||Opera Singer|
|3. Vicki Barbolak||Stand-up Comedienne|
|4. Glennis Grace||Singer|
|5. Zurcaroh||Acrobatic Group|
|6. Samuel J. Comroe||Stand-up Comedian|
|7. Courtney Hadwin||Singer/Dancer|
|8. Shin Lim||Magician|
|9. Duo Transcend||Trapeze Duo|
|10. Michael Ketterer||Singer|
- In this episode every act received standing ovations from all 4 judges except Daniel Emmet.
- This episode is tied with Episode 1121 for the most standing ovations, with 39 overall.