We've scanned every flight from San Jose Costa Rica to New York to find the best deals. If you want a cheap flight, it's best to be as flexible as you can on dates. If that day's no good for you, try searching by month to see some alternative dates.
You can use the filters on your search to see more flights and find cheaper rates – New York has more than one airport. So if you don't need to fly into New York Newark Liberty International Airport, it's worth checking your other options. The 3556 km flight usually takes about 11 hrs 15 mins.
If you're planning on going to New York during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.