Atlanta (ATL) to Boston (BOS): 945 miles (1,521 km) great-circle, about 2h 25m nonstop by our estimate. Cheapest fare observed: $144 round-trip on Frontier, nonstop, departing May 8, 2026.
$144 round-trip, Frontier F93512, departing 2026-05-08 at 06:00, returning 2026-05-10. The recorded itinerary left on a Friday, returning on a Sunday 2 nights later; the fare was observed 13 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $144, it ranked 11th of the 30 round-trip fares we recorded from ATL (median $212). That is 15.2 cents per great-circle mile (round-trip price over one-way distance), close to the ATL median of 15.8 cents across 30 round-trip routes.
Routes from ATL of similar length: New York (759 mi) at $115 and Dallas (730 mi) at $106.
Frontier had the cheapest fare on 18 of 30 ATL routes. It is the 20th longest of the 30 routes we track from ATL.
Of 22 departure airports with a fare to Boston, Atlanta (ATL) ranked 3rd at $144. 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.
The reverse, Boston (BOS) to Atlanta (ATL), was $170 round-trip on Frontier, nonstop, departing May 16, 2026. Boston to Atlanta flights.
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.