Cheapest one-way flights from Boston to Miami in January from $25

AirHint found the following cheapest one-way flights from Boston (BOS) to Miami (MIA) in January 2026 (see full year).

One-Way flights

21 Jan Spirit Airlines direct
14 Jan Spirit Airlines direct
13 Jan Spirit Airlines direct
28 Jan Spirit Airlines direct
20 Jan Spirit Airlines direct
27 Jan Spirit Airlines direct
12 Jan Spirit Airlines direct
17 Jan Spirit Airlines direct
10 Jan Spirit Airlines direct
31 Jan Spirit Airlines direct

Also check the deals for return flights from Boston to Miami in January.

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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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