Atlanta (ATL) to Miami (MIA): 596 miles (959 km) great-circle, about 1h 40m nonstop by our estimate. Cheapest fare observed: $72 round-trip on Frontier, nonstop, departing April 30, 2026.
$72 round-trip, Frontier F93442, departing 2026-04-30 at 22:50, returning 2026-05-12. The recorded itinerary left on a Thursday, returning on a Tuesday 12 nights later; the fare was observed 5 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $72, it was the cheapest of the 30 round-trip fares we recorded from ATL (median $212). That is 12.1 cents per great-circle mile (round-trip price over one-way distance), below the ATL median of 15.8 cents across 30 round-trip routes.
Routes from ATL of similar length: Chicago (607 mi) at $89 and Fort Lauderdale (582 mi) at $77.
Frontier had the cheapest fare on 18 of 30 ATL routes. It is the 26th longest of the 30 routes we track from ATL.
Of 30 departure airports with a fare to Miami, Atlanta (ATL) ranked 1st at $72. Lowest: $72 from Atlanta (ATL); highest: $1627 from Wellington (WLG); 10 nonstop. Cheapest-fare airlines (routes): Frontier (13), Spirit (4), Southwest (3), American Airlines (2), Arajet (2) and Avianca (1), plus 5 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.