$139 Cheap American Airlines flights Newark Liberty Intl. Airport (EWR) to San Diego (SAN)

Scoring cheap one-way American Airlines flights from EWR to SAN from $139 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $277 for your next break.**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 travel to San Diego with American Airlines. You could also find great deals on one-way and return fares in November.

To find cheap American Airlines fares from Liberty Intl. Airport (EWR) to San Diego Intl. Airport (SAN), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect what you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.

To figure out if there’s a direct journey from EWR to SAN with American Airlines or other airlines, use our “Nonstop” filter when searching for flights.

Search American Airlines’s earliest flights from EWR to SAN by using the “Morning” and “Early Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being canceled.**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.

American Airlines flights from Liberty Intl. Airport (EWR) to San Diego come in to land at San Diego Intl. Airport (SAN). This is the main entry point to this city.

Changes are generally free within 24 hours of making a booking, but your airline may add a charge after that. For more details about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to update your itinerary without extra charges, check the “Changes included” and “No cancel fee” filters when planning your trip.