Terminals · SFO
What terminal is Sun Country at SFO?
Sun Country departs from Terminal 1 at San Francisco International Airport (SFO). We verified this against the airport's own sources on June 27, 2026 — airlines do move terminals, so we date every check.
Terminal 1
SFO TSA wait times todayLive security waits by checkpoint, so you know when to leave for Terminal 1.What terminal is Sun Country at SFO?
Sun Country departs from Terminal 1 at San Francisco International Airport (SFO). Harvey Milk Terminal 1, Boarding Area B. Verified June 27, 2026.
Where does Sun Country check in at SFO?
Harvey Milk Terminal 1 ticketing. Bag drop usually closes 45 minutes before departure, so build that into your morning.
Did Sun Country move terminals at SFO?
Moved its check-in/bag drop from the International Terminal to Harvey Milk Terminal 1 on March 26, 2025 (alongside Aer Lingus and WestJet). We confirmed Sun Country's current Terminal 1 on June 27, 2026.
Not sure which building that is? See all SFO terminals with the airport map and how to get between them. Then let your Leave-By Time count backward from your flight — today's SFO security wait, your drive, and the walk to your gate — so you leave with room to breathe.