Cornell’s Summer & Winter Session features online courses taught by outstanding Cornell University faculty members. It’s the ideal time to earn credits before the fall or spring semester, catch up or get ahead in their studies, and really get to know your professor.

Summer Session
Earn credits during 3-, 6- & 8-week sessions
Summer Session 2026 features
- In-person, on-campus courses in Ithaca
- Online classes (learn about online study)
- Courses at Shoals Marine Laboratory in Maine
- International study abroad programs

Winter Session
Earn credits during this intense 3-week session
Winter Session 2027 features online classes. (Learn about online study)
View previous Winter Session courses
View previous Winter academic calendar