Direct answer
How early should I get to San Diego airport?
Quick answer
Arrive 2 hours before a domestic flight and 3 hours before an international flight at San Diego International (SAN). SAN is compact with short walks to gates, but it has only two terminals feeding one runway, and security lines at Terminal 2 peak between 5 and 8 AM. Add 30 minutes if you're returning a rental car.
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Key facts
Why SAN is different
San Diego International sits three miles from downtown on a single runway — the busiest single-runway commercial airport in the United States. The upside is a very short trip from most hotels. The downside is that morning departure banks stack up, and Terminal 2 security can run 30+ minutes at peak.
Getting there
Rideshare from downtown is typically $15–25 and 10–15 minutes. The rental car center is off-site with a shuttle, so returns need an extra 30 minutes. The free Terminal Loop shuttle connects terminals landside.
If you have a tight connection or an early flight
For flights before 8 AM, arrive at the full 2 hours — that's the peak window. For late-evening departures, 90 minutes is usually plenty. TSA PreCheck and Clear both operate at SAN and reliably save 15–25 minutes in the morning.
Related questions
Is San Diego airport easy to navigate?
Yes. It's small, with two terminals and short walks from security to gates — one of the easiest major airports in California.
How far is San Diego airport from downtown?
About 3 miles, or 10–15 minutes by car — one of the shortest airport-to-downtown trips in the country.
Can you sleep in San Diego airport?
The terminals close overnight to non-ticketed passengers and there are no sleep pods, so a nearby airport hotel is the better option for very early flights.
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