Cheap flights from Washington to Duck Key

View AU$99 flight on Wed, 13 Aug. 2025Opens in a new window

Popular airlines from Washington to Duck Key

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Cheap Flights from Washington (WAS) 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
Mon, 11 Aug. - Wed, 13 Aug.
BWI
Baltimore
MIA
Miami
AU$199 Return, found 4 days ago
AU$199
Return
found 4 days ago
Select American Airlines flight, departing Mon, 11 Aug. from Baltimore to Miami, returning Wed, 13 Aug., priced at AU$199 found 4 days ago
American Airlines
Sun, 9 Nov. - Wed, 19 Nov.
BWI
Baltimore
MIA
Miami
AU$211 Return, found 4 days ago
AU$211
Return
found 4 days ago
Select American Airlines flight, departing Sun, 9 Nov. from Baltimore to Miami, returning Wed, 19 Nov., priced at AU$211 found 4 days ago
American Airlines
Fri, 15 Aug. - Sat, 23 Aug.
BWI
Baltimore
MIA
Miami
AU$235 Return, found 6 days ago
AU$235
Return
found 6 days ago
Select American Airlines flight, departing Fri, 15 Aug. from Baltimore to Miami, returning Sat, 23 Aug., priced at AU$235 found 6 days ago
Delta
Sun, 9 Nov. - Wed, 19 Nov.
DCA
Washington
MIA
Miami
AU$244 Return, found 4 days ago
AU$244
Return
found 4 days ago
Select Delta flight, departing Sun, 9 Nov. from Washington to Miami, returning Wed, 19 Nov., priced at AU$244 found 4 days ago
United
Tue, 19 Aug. - Tue, 26 Aug.
IAD
Washington
MIA
Miami
AU$348 Return, found 6 days ago
AU$348
Return
found 6 days ago
Select United flight, departing Tue, 19 Aug. from Washington to Miami, returning Tue, 26 Aug., priced at AU$348 found 6 days ago
Alaska Airlines
Tue, 8 Jul. - Wed, 9 Jul.
IAD
Washington
MIA
Miami
AU$9,588 Return, found 6 days ago
AU$9,588
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 8 Jul. from Washington to Miami, returning Wed, 9 Jul., priced at AU$9,588 found 6 days ago

Find the cheapest month to fly from Washington (WAS) to Miami (MIA)

September is typically the cheapest month to fly

From AU$79 - AU$259 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.