Discover Delta Airlines SJO Terminal with our visitor review. Experience a smooth check-in, polite staff, and a clean, organized environment. Enjoy comfy seating, complimentary Wi-Fi, and short security lines. Experience speedy boarding and attentive in-flight service to ensure a comfortable travel. Delta at SJO provides a hassle-free travel experience for business and leisure travelers alike. Read our review to learn more about what to expect on your next vacation.