Newark (EWR) to San Juan (SJU): 1,612 miles (2,594 km) great-circle, about 3h 45m nonstop by our estimate. Cheapest fare observed: $150 round-trip on Spirit, with 1 stop, departing May 23, 2026.
$150 round-trip, Spirit NK2463, departing 2026-05-23 at 21:00, returning 2026-05-26. The recorded itinerary left on a Saturday, returning on a Tuesday 3 nights later; the fare was observed 28 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $150, it ranked 5th of the 30 round-trip fares we recorded from EWR (median $329). That is 9.3 cents per great-circle mile (round-trip price over one-way distance), below the EWR median of 16.5 cents across 30 round-trip routes.
Routes from EWR of similar length: Punta Cana (1,567 mi) at $342 and Santo Domingo (1,561 mi) at $244.
Spirit had the cheapest fare on 8 of 30 EWR routes. It is the 19th longest of the 30 routes we track from EWR.
Of 20 departure airports with a fare to San Juan, Newark (EWR) ranked 5th at $150. Lowest: $127 from Orlando (MCO); highest: $632 from Washington DC (IAD); 7 nonstop. Cheapest-fare airlines (routes): Frontier (9), Spirit (4), American Airlines (2), JetBlue (2), Southwest (1) and United Airlines (1), plus 1 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Puerto_Rico; flight time is our estimate.