Washington DC (DCA) to Atlanta (ATL): 547 miles (880 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $158 round-trip on Frontier, with 1 stop, departing May 9, 2026.
$158 round-trip, Frontier F9689, departing 2026-05-09 at 18:00, returning 2026-05-12. The recorded itinerary left on a Saturday, returning on a Tuesday 3 nights later; the fare was observed 14 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $158, it ranked 3rd of the 30 round-trip fares we recorded from DCA (median $998). That is 28.9 cents per great-circle mile (round-trip price over one-way distance), close to the DCA median of 26.4 cents across 30 round-trip routes.
Routes from DCA of similar length: Chicago (611 mi) at $269 and Toronto (359 mi) at $372.
Frontier had the cheapest fare on 6 of 30 DCA routes. It is the 29th longest of the 30 routes we track from DCA.
Of 24 departure airports with a fare to Atlanta, Washington DC (DCA) ranked 11th at $158. Lowest: $52 from Fort Lauderdale (FLL); highest: $1436 from Nairobi (NBO); 12 nonstop. Cheapest-fare airlines (routes): Frontier (20), Spirit (2), airline F2 (1) and Copa (1).
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.