Cheapest one-way flights from Washington to Miami in March from $54

AirHint found the following cheapest one-way flights from Washington (IAD) to Miami (MIA) in March 2026 (see full year).

One-Way flights

13 Mar Frontier Airlines direct
05 Mar Frontier Airlines
25 Mar United direct
07 Mar Frontier Airlines
11 Mar Frontier Airlines
05 Mar United direct
24 Mar Frontier Airlines
12 Mar Frontier Airlines
27 Mar Frontier Airlines
12 Mar United direct

Also check the deals for return flights from Washington to Miami in March.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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