Which Classes Fill Up Fastest at Skyline College?

    In Fall 2026, 51% of Skyline’s 992 class sections filled up. The classes most likely to be full were BIOL 250, STAT C1000 and CHEM 410.

    At their longest, waitlists across Skyline’s sections added up to 3,818 spots.

    Online sections filled more often than in-person ones: 44% of in-person sections vs 55% of online sections.

    The 30 classes that fill up fastest at Skyline

    1. 1.BIOL 250 Human Anatomy
      10 of 10 sections full · 236 on waitlists
    2. 2.STAT C1000 Introduction to Statistics
      17 of 17 sections full · 137 on waitlists
    3. 3.CHEM 410 Chem For Health Sciences
      8 of 8 sections full · 130 on waitlists
    4. 4.BIOL 240 General Microbiology
      4 of 4 sections full · 120 on waitlists
    5. 5.BIOL 260 Human Physiology
      6 of 6 sections full · 107 on waitlists
    6. 6.BIOL 110 Intro to Biology with Lab
      7 of 7 sections full · 105 on waitlists
    7. 7.CHEM 210 General Chemistry I
      4 of 4 sections full · 96 on waitlists
    8. 8.ETHN 103 Asian American US Institutions
      8 of 8 sections full · 85 on waitlists
    9. 9.PSYC 100 Introduction to Psychology
      11 of 11 sections full · 82 on waitlists
    10. 10.BIOL 310 Nutrition
      2 of 2 sections full · 60 on waitlists
    11. 11.PHYS 210 General Physics I
      5 of 5 sections full · 53 on waitlists
    12. 12.BIOL 130 Human Biology
      2 of 2 sections full · 52 on waitlists
    13. 13.HSCI 484 Medical Terminology
      2 of 2 sections full · 50 on waitlists
    14. 14.MATH 241 Applied Calculus I
      3 of 3 sections full · 43 on waitlists
    15. 15.ASTR 100 Introduction To Astronomy
      4 of 4 sections full · 38 on waitlists
    16. 16.ENVS 100 Intro to Environmental Science
      2 of 2 sections full · 35 on waitlists
    17. 17.ECE. 212 Child, Family & Community
      2 of 2 sections full · 32 on waitlists
    18. 18.ADMJ 100 Intro to Criminal Justice
      3 of 3 sections full · 31 on waitlists
    19. 19.FILM 100 Introduction to Film
      2 of 2 sections full · 30 on waitlists
    20. 20.OCEN 100 Oceanography
      2 of 2 sections full · 30 on waitlists
    21. 21.CDEV C1000 Child Growth and Development
      4 of 4 sections full · 29 on waitlists
    22. 22.ECON 102 Principles of Microeconomics
      5 of 5 sections full · 28 on waitlists
    23. 23.BIOL 215 Organismal Biology
      3 of 3 sections full · 28 on waitlists
    24. 24.ETHN 142 Filipina/o/x Community Issues
      5 of 5 sections full · 26 on waitlists
    25. 25.ETHN 101 Latin Amer. & Indigenous Hist
      4 of 4 sections full · 25 on waitlists
    26. 26.PHYS 250 Physics with Calculus I
      3 of 3 sections full · 25 on waitlists
    27. 27.ENGL 165 Critical Thinking and Writing
      2 of 2 sections full · 23 on waitlists
    28. 28.EMC. 425 CPR: Health Care Provider
      4 of 4 sections full · 21 on waitlists
    29. 29.ART 411 Ceramics I
      2 of 2 sections full · 20 on waitlists
    30. 30.BUS. 201 Business Law
      2 of 2 sections full · 18 on waitlists

    Only classes with two or more sections are ranked. The waitlist number adds up each section’s waitlist at its longest, so a student waiting on two sections counts twice.

    How we measured this

    We checked every section in Skyline’s Fall 2026 class schedule repeatedly from Tuesday, June 30, 2026 to Wednesday, October 14, 2026. A section counts as full if any check found its enrollment at the seat limit or anyone on its waitlist. Cancelled sections and sections without a seat limit are left out. Classes that filled before our first check still count, because they were still full when we looked.

    Questions students ask

    What classes fill up fast at Skyline?

    In Fall 2026, the classes most likely to be full at Skyline were BIOL 250 (Human Anatomy), STAT C1000 (Introduction to Statistics), CHEM 410 (Chem For Health Sciences), BIOL 240 (General Microbiology) and BIOL 260 (Human Physiology). Overall, 51% of Skyline’s class sections filled up.

    How do I get into a full class at Skyline?

    Get on the waitlist as soon as you can, check your email through the first week for a permission number or add code, and go to the first class meeting. Instructors often add waitlisted students who show up, as other students drop.

    When should I register at Skyline to get the classes I need?

    At your registration appointment, the first minute it opens. Spring 2027 registration at Skyline opens Wednesday, November 11, 2026 for continuing students. Have a backup section picked for every class on this list.

    Not sure which classes to register for? On our platform, put in Skyline and the university you want to transfer to, and you get the classes you need, semester by semester. Build your class plan.