Charlotte (CLT) to San Juan (SJU): 1,477 miles (2,376 km) great-circle, about 3h 25m nonstop by our estimate. Cheapest fare observed: $200 round-trip on Frontier, with 1 stop, departing May 2, 2026.
$200 round-trip, Frontier F92451, departing 2026-05-02 at 20:09, returning 2026-05-05. The recorded itinerary left on a Saturday, returning on a Tuesday 3 nights later; the fare was observed 7 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $200, it ranked 8th of the 30 round-trip fares we recorded from CLT (median $293). That is 13.5 cents per great-circle mile (round-trip price over one-way distance), below the CLT median of 22.0 cents across 30 round-trip routes.
Routes from CLT of similar length: Mexico City (1,553 mi) at $453 and Denver (1,335 mi) at $256.
Frontier had the cheapest fare on 17 of 30 CLT routes. It is the 14th longest of the 30 routes we track from CLT.
Of 20 departure airports with a fare to San Juan, Charlotte (CLT) ranked 10th at $200. 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.