Houston (IAH) to Miami (MIA): 963 miles (1,549 km) great-circle, about 2h 25m nonstop by our estimate. Cheapest fare observed: $82 round-trip on Frontier, nonstop, departing May 10, 2026.
$82 round-trip, Frontier F91462, departing 2026-05-10 at 21:17, returning 2026-05-14. The recorded itinerary left on a Sunday, returning on a Thursday 4 nights later; the fare was observed 15 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $82, it was the cheapest of the 30 round-trip fares we recorded from IAH (median $247). That is 8.5 cents per great-circle mile (round-trip price over one-way distance), below the IAH median of 17.9 cents across 30 round-trip routes.
Routes from IAH of similar length: Fort Lauderdale (964 mi) at $150 and Chicago (926 mi) at $101.
Frontier had the cheapest fare on 12 of 30 IAH routes. It is the 21st longest of the 30 routes we track from IAH.
Of 30 departure airports with a fare to Miami, Houston (IAH) ranked 3rd at $82. 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/Chicago, America/New_York; flight time is our estimate.