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| Domestic flights | ~120 min before departure |
| International flights | ~180 min before departure |
International terminal lines can be lengthy during peak departure banks — the renovated terminal has helped.
Arrive at least 120 minutes before departure for a domestic flight at San Francisco (SFO).
Arrive at least 180 minutes before departure for an international flight at San Francisco (SFO).
Security and check-in congestion here is moderate — build in your full recommended buffer, especially at peak times International terminal lines can be lengthy during peak departure banks — the renovated terminal has helped.
Yes — bag-drop lines can add 15-30 minutes at busy airports, so lean toward the longer end of the recommended range if you're not carry-on only.