Which airline flies the most flights to SJO? The top airline carrier flying out of Juan Santamaria Intl. is United Airlines and they fly over 529 flights every month.
- United - San Jose (SJO) to Boston (BOS) on 4/3 leaving at 5:30 am and returning on 4/6 at 7:15 pm for only $398 per person.*
- Spirit Airlines - San Jose (SJO) to Chicago (ORD) on 4/10 leaving at 11:55 am and returning on 4/12 at 10:38 am for only $401 per person.*
- United - San Jose (SJO) to New York (EWR) on 4/3 leaving at 6:00 am and returning on 4/6 at 7:15 pm for only $497 per person.*
*Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of 03/20/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.