Cheap flights to San Diego
60 cities have regular scheduled flights to San Diego (SAN). 43 airlines fly to the city, from major international carriers to budget low-cost options. Most flights depart from San Francisco, Seattle, San Jose, Las Vegas, Phoenix. Compare fares, choose the best option and book your tickets online at the best price. Enter your departure city above to find flights and check prices.
San Francisco — San Diego
Phoenix — San Diego
Las Vegas — San Diego
Denver — San Diego
Fresno — San Diego
Sacramento — San Diego
Santa Rosa — San Diego
Los Angeles — San Jose
Portland — San Diego
Spokane — San Diego
Washington, D.C. — Las Vegas
Reno — San Diego
Popular departure cities to San Diego
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United StatesFlight insights to San Diego
Data-driven trends for direct flights to San Diego — how often airlines fly, where passengers come from, and typical fares and flight times.
Most frequent departure cities
The most frequent direct routes to San Diego come from San Francisco, Seattle and San Jose. San Francisco leads with around 655 flights a week.
- San Francisco655 flights/week
- Seattle458 flights/week
- San Jose376 flights/week
- Las Vegas374 flights/week
- Phoenix303 flights/week
Top departure countries
Most direct flights to San Diego depart from United States, Canada and Mexico. United States alone accounts for about 95% of all direct routes.
- United Statesavg $95
- Canadaavg $166
- Mexicoavg $218
- United Kingdomavg $465
- Germanyavg $557
Direct routes & fares
Popular non-stop routes to San Diego range from San Francisco at $25 to Seattle at $79 — a quick way to compare direct-flight fares.
- San Franciscofrom $25
- Seattlefrom $79
- San Josefrom $25
- Las Vegasfrom $28
- Phoenixfrom $25
Cheapest departure cities
The cheapest places to fly to San Diego from right now are San Francisco from $25, San Jose from $25 and Phoenix from $25.
- San Franciscofrom $25
- San Josefrom $25
- Phoenixfrom $25
- Oaklandfrom $25
- Las Vegasfrom $28
Longest direct flights
The longest direct flight to San Diego is from Munich at about 12h 56m, followed by Amsterdam (12h 5m) and Tokyo (12h 3m).
- Munich12h 56m
- Amsterdam12h 5m
- Tokyo12h 3m
- London11h 50m
- Panama City6h 30m
Frequently asked questions
- Which cities have flights to San Diego?
- There are 60+ cities with regular flights to San Diego, from major international hubs to nearby regional airports. Pick your departure city to compare fares and book.
- Where do most flights to San Diego depart from?
- Most travelers fly to San Diego from San Francisco, Seattle, San Jose, Las Vegas, Phoenix. These routes have the highest flight frequency and passenger traffic, so fares are usually competitive.
- How many airlines fly to San Diego?
- 43 airlines operate flights to San Diego, ranging from major international carriers to budget low-cost airlines. Competition helps keep fares affordable.
- When is the best time to book flights to San Diego?
- For short-haul routes, booking 4–8 weeks ahead usually gives the best prices. For long-haul flights, aim for 2–3 months ahead. Prices also drop in off-peak seasons and for midweek departures.
- How to find cheap flights to San Diego?
- Compare offers from multiple airlines, use flexible dates and set up price alerts. Our platform lets you track price trends and choose the best time to buy your tickets.