Cheap flights to San Diego
Flights arrive in sunny San Diego via San Diego International Airport, located just 4 km from the city center. An extensive route network includes dozens of destinations, with the most frequent departures from San Francisco (655 flights per week), Seattle (458 flights), and San Jose (376 flights). To plan your trip, it is also helpful to check out the section on how to get to your destination and the latest weather information.
A total of 43 airlines serve the city, offering passengers a flexible choice of fares and departure times. The largest carriers by flight volume are Alaska Airlines, American Airlines, and United Airlines. Further down the page, you will find convenient cards for popular departure cities with a search form to help you quickly find and book tickets to the USA.

San Francisco — San Diego

Las Vegas — San Diego


Los Angeles — San Diego

Fresno — San Diego

Sacramento — San Diego

Denver — San Diego

Santa Rosa — San Diego


Seattle — San Diego

Phoenix — San Diego

Spokane — San Diego


Portland — San Diego


Boise — San Diego
Flight 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 $90
- Canadaavg $171
- Mexicoavg $226
- United Kingdomavg $452
- Germanyavg $451
Direct routes & fares
Popular non-stop routes to San Diego range from Las Vegas at $20 to Seattle at $68 — a quick way to compare direct-flight fares.
- San Franciscofrom $22
- Seattlefrom $68
- San Josefrom $21
- Las Vegasfrom $20
- Phoenixfrom $47
Cheapest departure cities
The cheapest places to fly to San Diego from right now are Las Vegas from $20, San Jose from $21 and Oakland from $21.
- Las Vegasfrom $20
- San Josefrom $21
- Oaklandfrom $21
- San Franciscofrom $22
- Denverfrom $42
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
Popular departure cities to San Diego
Frequently asked questions
- Which airports serve flights to San Diego?
- The main hub is San Diego International Airport (SAN). Its key advantage is its proximity to the city's business district, being only about 4 kilometers away.
- How many cities have flights to San Diego?
- Currently, there are 15 departure cities on the list of most popular routes. An extensive network of domestic routes in the USA makes it easy for travelers to find a suitable flight from the country's major transportation hubs.
- Which cities have the most frequent flights to San Diego?
- The most popular departure points are San Francisco with a frequency of 655 flights per week, Seattle (458 flights), and San Jose (376 flights). Significant passenger traffic is also provided by Las Vegas and Phoenix.
- How many airlines fly to San Diego?
- 43 airlines operate flights to the city. The leaders in terms of weekly flights are Alaska Airlines, American Airlines, United Airlines, as well as Delta and Southwest Airlines.
- How to find cheap flights to San Diego?
- To find the best deals, we recommend using the departure city cards found on this page. Comparing offers from carriers like Frontier Airlines or JetBlue often allows you to find more affordable fares.
- When is the best time to buy flight tickets to San Diego?
- It is best to book tickets for flights to California in advance, especially if you plan to travel during the summer months or holiday dates. Monitoring prices 2–3 months before departure usually helps to secure the best flight cost.