AirHint found the following cheapest one-way flights from Washington (IAD) to Miami (MIA) in September 2026 (see full year).
One-Way flights
| 25 Sep | United | direct | |
| 28 Sep | United | direct | |
| 02 Sep | American Airlines | ||
| 29 Sep | Delta | ||
| 30 Sep | Delta | ||
| 17 Sep | Delta | ||
| 21 Sep | Delta | ||
| 07 Sep | Delta | ||
| 03 Sep | American Airlines | ||
| 29 Sep | United | direct |
Also check the deals for return flights from Washington to Miami in September.
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