Season 3 of ALF aired on NBC from October 3, 1988 until May 8, 1989.
| Episode Number | Date Aired | Title | Production Number |
|---|---|---|---|
| 3-1 | 3 Oct 88 | Stop in the Name of Love (season premiere) | 3001 |
| 3-2 | 10 Oct 88 | Stairway to Heaven | 3005 |
| 3-3 | 17 Oct 88 | Breaking Up is Hard to Do | 3002 |
| 3-4 3-5 |
24 Oct 88 | Tonight, Tonight | 3006A 3006B |
| 3-6 | 31 Oct 88 | Promises, Promises | 3004 |
| 3-7 3-8 |
14 Nov 88 15 Nov 88 |
Turkey in the Straw | 3008A 3008B |
| 3-9 | 21 Nov 88 | Changes | 3007 |
| 3-10 | 28 Nov 88 | My Back Pages | 3012 |
| 3-11 | 5 Dec 88 | Alone Again, Naturally | 3013 |
| 3-12 | 12 Dec 88 | Do You Believe in Magic? | 3009 |
| 3-13 | 9 Jan 89 | Hide Away | 3014 |
| 3-14 | 16 Jan 89 | Fight Back | 3016 |
| 3-15 | 23 Jan 89 | Suspicious Minds | 3010 |
| 3-16 | 6 Feb 89 | Baby Love | 3011 |
| 3-17 | 13 Feb 89 | Running Scared | 3017 |
| 3-18 | 20 Feb 89 | Standing in the Shadows of Love | 3015 |
| 3-19 | 27 Feb 89 | Superstition | 3020 |
| 3-20 | 6 Mar 89 | Torn Between Two Lovers | 3021 |
| 3-21 | 20 Mar 89 | Funeral for a Friend | 3023 |
| 3-22 | 27 Mar 89 | Don't Be Afraid of the Dark | 3022 |
| 3-23 | 10 Apr 89 | Have You Seen Your Mother, Baby, Standing in the Shadow? | 3026 |
| 3-24 | 17 Apr 89 | Like an Old Time Movie | 3003 |
| 3-25 | 1 May 89 | Shake, Rattle and Roll | 3018 |
| 3-26 | 8 May 89 | Having My Baby (season finale) | 3019 |