Charlotte (CLT) to Boston (BOS): 727 miles (1,170 km) great-circle, about 1h 55m nonstop by our estimate. Cheapest fare observed: $398 round-trip on Southwest, with 1 stop, departing May 1, 2026.
$398 round-trip, Southwest WN693, departing 2026-05-01 at 19:20, returning 2026-05-03. The recorded itinerary left on a Friday, returning on a Sunday 2 nights later; the fare was observed 6 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $398, it ranked 21st of the 30 round-trip fares we recorded from CLT (median $293). That is 54.7 cents per great-circle mile (round-trip price over one-way distance), above the CLT median of 22.0 cents across 30 round-trip routes.
Routes from CLT of similar length: Providence (683 mi) at $314 and Miami (652 mi) at $81.
CLT to BOS is the only one of 30 CLT routes where Southwest priced cheapest. It is the 19th longest of the 30 routes we track from CLT.
Of 22 departure airports with a fare to Boston, Charlotte (CLT) ranked 17th at $398. Lowest: $101 from Fort Lauderdale (FLL); highest: $1271 from Nairobi (NBO); 5 nonstop. Cheapest-fare airlines (routes): American Airlines (6), Frontier (5), Spirit (4), Southwest (3), Avianca (1) and Brussels Airlines (1), plus 2 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/New_York; flight time is our estimate.