Flights Washington → Miami — September 21, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Monday, September 21, 2026 on the Washington–Miami route: 1 stop itinerary (2 flights) via Denver International (DEN), from Washington Reagan National (DCA) to Miami International (MIA), first flight Frontier Airlines F9687, departs 1:06 PM, arrives 12:46 AM the next day, total travel time 11h 40m including layovers, flight time 7h 41m (layovers excluded), $156 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 9, 2026 and read by AirSource on September 10, 2026, 20:47 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: Southwest Airlines WN955, from Washington Reagan National (DCA) to Miami International (MIA), departs 6:55 AM, arrives 11:50 AM, direct, 4h 55m, $272 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable.