Houston (IAH) to Atlanta (ATL): 688 miles (1,108 km) great-circle, about 1h 55m nonstop by our estimate. Cheapest fare observed: $119 round-trip on Frontier, nonstop, departing April 27, 2026.
$119 round-trip, Frontier F94076, departing 2026-04-27 at 13:17, returning 2026-05-01. The recorded itinerary left on a Monday, returning on a Friday 4 nights later; the fare was observed 2 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $119, it ranked 5th of the 30 round-trip fares we recorded from IAH (median $247). That is 17.3 cents per great-circle mile (round-trip price over one-way distance), close to the IAH median of 17.9 cents across 30 round-trip routes.
Routes from IAH of similar length: El Paso (666 mi) at $421 and Nashville (657 mi) at $213.
Frontier had the cheapest fare on 12 of 30 IAH routes. It is the 27th longest of the 30 routes we track from IAH.
Of 24 departure airports with a fare to Atlanta, Houston (IAH) ranked 7th at $119. 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/Chicago, America/New_York; flight time is our estimate.