JetBlue has round-trip flights from New York (JFK) to San Diego (SAN) for $197-$208, NONSTOP. Flights December to April. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. No Christmas dates available.
Some small OTAs on Skyscanner and Google have this for cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
JetBlue’s “Basic” fares allow for a carry-on bag and a small personal item (17 x 13 x 8 inches), like a Jansport SuperBreak backpack without a fee. You can avoid seat selection fees by accepting the randomly assigned seat at the gate.
Click for more details and booking links Nonstop Flights: New York to San Diego $197-$208 r/t [December-April] (No Christmas) – JetBlue / Delta / Alaska Airlines / Skyscanner