Cheap flights
Cheap flights from United States to San Diego
Track the cheapest United States–San Diego fares — currently from €24.
Fares shown in EUR, observed from live searches.
Here's everything you need to book a cheap flight from United States to San Diego: the cheapest fares we've tracked, how prices change month to month, and a free alert that watches the route for you.
United States to San Diego flight prices by month
The cheapest month to fly United States to San Diego is Jul 2026, with fares from €24. Use the table below to find the cheapest time to travel.
| Month | Cheapest fare |
|---|---|
| Jul 2026Cheapest | €24 |
Popular destinations from United States
Frequently asked questions
How much is a flight from United States to San Diego?
The cheapest United States–San Diego fare we've tracked recently is €24 one-way. The lowest prices usually appear in Jul 2026.
What is the cheapest month to fly from United States to San Diego?
Jul 2026 is currently the cheapest month to fly from United States to San Diego, with fares from €24. See the month-by-month table above for the full year.
How far in advance should I book United States to San Diego?
For United States–San Diego, booking a few weeks to a few months ahead usually gives the best price. Flexible dates and mid-week departures help you save even more.
Can I set a price alert for United States to San Diego?
Yes — Flyozo watches the United States–San Diego route for free and emails you the moment the fare drops.
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Going the other way
Prices on this page are observed from live flight searches (3,765 recent fares), not estimates. Last updated Jun 12, 2026. Actual prices change constantly — always confirm on the booking site.