Cheap flights from Boston to Duck Key

View AU$89 flight on Wed, 22 Oct. 2025Opens in a new window

Popular airlines from Boston to Duck Key

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Cheap Flights from Boston (BOS) to Duck Key (MIA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 10 Sep. - Wed, 17 Sep.
BOS
Boston
MIA
Miami
AU$148 Return, found 6 days ago
AU$148
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Sep. from Boston to Miami, returning Wed, 17 Sep., priced at AU$148 found 6 days ago
American Airlines
Wed, 8 Oct. - Wed, 15 Oct.
BOS
Boston
MIA
Miami
AU$150 Return, found 3 days ago
AU$150
Return
found 3 days ago
Select American Airlines flight, departing Wed, 8 Oct. from Boston to Miami, returning Wed, 15 Oct., priced at AU$150 found 3 days ago
Delta
Wed, 10 Sep. - Wed, 17 Sep.
BOS
Boston
MIA
Miami
AU$178 Return, found 6 days ago
AU$178
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Sep. from Boston to Miami, returning Wed, 17 Sep., priced at AU$178 found 6 days ago
Delta
Tue, 9 Sep. - Tue, 16 Sep.
BOS
Boston
MIA
Miami
AU$180 Return, found 4 days ago
AU$180
Return
found 4 days ago
Select Delta flight, departing Tue, 9 Sep. from Boston to Miami, returning Tue, 16 Sep., priced at AU$180 found 4 days ago
Delta
Wed, 10 Sep. - Wed, 17 Sep.
BOS
Boston
MIA
Miami
AU$193 Return, found 6 days ago
AU$193
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Sep. from Boston to Miami, returning Wed, 17 Sep., priced at AU$193 found 6 days ago
United
Wed, 8 Oct. - Wed, 15 Oct.
BOS
Boston
MIA
Miami
AU$349 Return, found 3 days ago
AU$349
Return
found 3 days ago
Select United flight, departing Wed, 8 Oct. from Boston to Miami, returning Wed, 15 Oct., priced at AU$349 found 3 days ago

Find the cheapest month to fly from Boston (BOS) to Miami (MIA)

March is typically the cheapest month to fly

From AU$82 - AU$517 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.