United States · San Francisco

Enregistrement en ligne à San Francisco International Airport (SFO)

Northern California's main airport and a major United Airlines hub. Four terminals (1, 2, 3, International) connected by AirTrain.

Now at San Francisco International Airport

Choisissez votre compagnie pour ouvrir la page d'enregistrement officielle avec des indications spécifiques au terminal.

BART is fastest from downtown

30 minutes from Embarcadero / Powell to SFO station, $10.85 single. AirTrain (free) connects SFO station to terminals.
Fog delays are common

SFO has frequent low-visibility delays (especially May–August). Some flights divert to OAK or SJC. Build buffer time for connections.
International terminal is far from domestic

International Terminal A and G are at one end; T2 and T3 at the other. AirTrain ride between can take 10+ minutes including walks.

Which terminal does United use at SFO?

United domestic flights use Terminal 3. United international flights (and most international Star Alliance) use the International Terminal.

How early should I arrive at SFO?

2 hours for domestic, 3 hours for international. Add 30 minutes during summer fog season (May–August) when delays propagate through the airport.

Can I get to Silicon Valley directly from SFO?

Yes — Caltrain from Millbrae station (10 min via SamTrans bus) to San Jose, Palo Alto, etc. About 30–60 minutes depending on stop.