San Diego to New York is a transcontinental route, so fares are higher than a short hop but still dip well below average during sales and shoulder windows. Knowing the typical range is the key to spotting a real deal.
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Coast-to-coast round trip under $180 with a free carry-on.
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For coast-to-coast trips, one to three months ahead tends to capture clean pricing. Mid-week departures usually beat weekends, and fall and late winter are softer than summer and the holidays.
New York has three major airports — JFK, Newark (EWR) and LaGuardia (LGA). Comparing all three can shift the fare meaningfully, especially if you are flexible on arrival.
On a longer route, basic-economy carry-on restrictions matter more. Make sure the fare you compare includes the bag you plan to bring.
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Round trips under $200 appear during sales and shoulder seasons. That is a strong price for a transcontinental route, where averages often sit higher.
JFK, Newark and LaGuardia each serve different parts of the metro area. Pick based on where you are staying and compare fares across all three.