Is a 4 hr layover in San Francisco long enough?
Yes, 4 hours is probably enough for a layover at SFO (San Francisco).
Is 4 hours enough for a layover at San Francisco International (SFO)?
Excess time; consider lounge access or a quick BART trip into the city if truly needed.
What is the minimum connection time at SFO?
Minimum connection times at San Francisco International: Domestic-to-Domestic is 60 minutes, International-to-International is 90 minutes. These are the shortest layovers airlines will sell.
Can I make a 4 hours connection at SFO on an international flight?
4 hours clears the 90-minute international minimum connection time at San Francisco International, but you should still head directly to your gate. The AirTrain Red and Blue lines circle the terminal complex on an elevated guideway, with each hop taking about 5-8 minutes plus waiting time. Most domestic-to-domestic connections require leaving the secure area, riding the AirTrain, and clearing TSA security again in the new terminal, while many international arrivals can connect to United domestic flights via a sterile corridor without re-clearing security.
How much time do I need for a layover at SFO?
We recommend at least 1 hour for a comfortable connection at San Francisco International. This gives you enough buffer for security (typically 20 minutes) and transit between terminals (up to 30 minutes).
What happens if I miss my connection at SFO?
United and most partner airlines have rebooking desks in Terminal 3 and the International Terminal; United's app can often automatically rebook you on the next available flight if you miss a connection.