$183 Cheap United flights Los Angeles (LAX) to San Diego (SAN)

You can discover cheap round-trip United Airlines flights from $179 from LAX to SAN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $183 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the most affordable months to jet away to San Diego with United Airlines. You could also find great prices on one-way and return fares in November.

Search for affordable United Airlines flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

United Airlines has direct flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN), with 21 departures each week. Simply use the “Nonstop” and “Airline” filters during your search on Expedia to show all direct United Airlines flights to SAN.

It takes approximately 1h 3m to fly nonstop from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) with United Airlines.

If flexibility is what you’re after, Tuesday offers the most choice for United Airlines flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN). Take your pick of 3 different departures.

The earliest flight from LAX to SAN with United Airlines departs at 8:27AM UTC-8. You’ll touch down at 9:32AM UTC-8. The final United Airlines flight of the day leaves at 10:55PM UTC-8 and arrives at 11:58PM UTC-8. With around 20% fewer cancellations for morning and mid-morning departures, beginning your travel day early is typically the best option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

San Diego Intl. Airport (SAN) is the main San Diego gateway for United Airlines flights from Los Angeles Intl. Airport (LAX).

With a rewarding loyalty program, United Airlines is a popular choice for many passengers flying from LAX to SAN. Plus, if you’re a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

United Airlines typically operates Embraer 175 planes for flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN). Keep in mind that aircraft type can change depending on operational needs, so the plane you board might be different on the day.

Changes are typically free within 24 hours of booking, but your airline may charge you after that time. For further details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without additional costs, check the “Changes included” or “No cancel fee” filter when planning your next escape.