Washington DC (IAD) to Fort Lauderdale (FLL): 903 miles (1,453 km) great-circle, about 2h 20m nonstop by our estimate. Cheapest fare observed: $186 round-trip on Frontier, with 1 stop, departing May 22, 2026.
$186 round-trip, Frontier F93691, departing 2026-05-22 at 20:47, returning 2026-05-27. The recorded itinerary left on a Friday, returning on a Wednesday 5 nights later; the fare was observed 27 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $186, it ranked 4th of the 30 round-trip fares we recorded from IAD (median $775). That is 20.6 cents per great-circle mile (round-trip price over one-way distance), close to the IAD median of 22.5 cents across 30 round-trip routes.
Routes from IAD of similar length: Miami (923 mi) at $211 and Orlando (752 mi) at $121.
Frontier had the cheapest fare on 8 of 30 IAD routes. It is the 26th longest of the 30 routes we track from IAD.
Of 28 departure airports with a fare to Fort Lauderdale, Washington DC (IAD) ranked 15th at $186. Lowest: $64 from Charlotte (CLT); highest: $1825 from Wellington (WLG); 16 nonstop. Cheapest-fare airlines (routes): Frontier (8), Spirit (8), JetBlue (4), WestJet (3), Air Transat (1) and American Airlines (1), plus 3 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.