Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to San Diego. Flights to San Diego from Trenton, New Jersey in August are about $326 on average during August, but can be found for as low as $138.
It’s optimal to fly from Trenton, New Jersey to San Diego in the afternoon. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight at noon.
Travelers have found that booking a Monday departure is the best way to save up to 33% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
To save up to 42% on this flight, we recommend booking at least 35 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Trenton, New Jersey to San Diego from $381 1-2 weeks out and tickets from $460 for flights departing within the next 72 hours.