Terminals · SFO
What terminal is Aer Lingus at SFO?
Aer Lingus 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 Aer Lingus at SFO?
Aer Lingus departs from Terminal 1 at San Francisco International Airport (SFO). Harvey Milk Terminal 1, Boarding Area B. Dublin is a U.S.-preclearance station, so Aer Lingus operates from the domestic Terminal 1 rather than the International Terminal. Verified June 27, 2026.
Where does Aer Lingus check in at SFO?
Harvey Milk Terminal 1 ticketing. Bag drop usually closes 45 minutes before departure, so build that into your morning.
Did Aer Lingus move terminals at SFO?
Moved its check-in/bag drop from the International Terminal to Harvey Milk Terminal 1 on March 26, 2025 (alongside Sun Country and WestJet). We confirmed Aer Lingus's current Terminal 1 on June 27, 2026.
Does Aer Lingus use a different terminal for international flights at SFO?
Operates from domestic Terminal 1 because Dublin has U.S. customs preclearance (unusual for a transatlantic carrier).
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.