Grab a cheap one-way flight from $80 or cheap return flight from $165 from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by …

Cheap Flights from St. Louis to San Diego (STL-SAN) Discover the best prices for you by selecting your travel dates on KAYAK.

Dec 22, 2025 · Find the best deals on flights from St Louis (STL) to San Diego International (SAN). Compare prices from hundreds of major travel agents and airlines, all in one search.

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The monthly calendar shows every direct flight departure from Saint Louis Airport (STL) with all airlines. Click on a date to see a list of flights or search for the best prices.

2 days ago · All direct (non-stop) flights from St. Louis to San Diego. See airlines, aircrafts, flight time and distance, flight schedules and timetables.

Find the fastest flights and airline route options from Saint Louis Airport (STL) to San Diego International Airport (SAN). See airline schedules, flight times, maps and connecting airports.

Find airfare and ticket deals for cheap flights from St. Louis, MO to San Diego, CA. Search flight deals from various travel partners with one click at $50.

Find airfare deals on cheap tickets from Lambert-St. Louis Intl. (STL) to San Diego Intl. (SAN ) and save on your next flight with Flights.com