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Popular airlines from Washington to Duck Key
- American Airlines
American Airlines
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- United
United
- Frontier Airlines
Frontier Airlines
- Spirit Airlines
Spirit Airlines
- JetBlue Airways
JetBlue Airways
- Plan, book, fly with confidence
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Cheap Flights from Washington to Duck Key (WAS-MIA)
Prices were available within the past 7 days and start at $34 for one-way flights and $59 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 29 - Mon, Sep 29
BWI
Baltimore
MIA
Miami
$59 Roundtrip, found 8 hours ago
$59
Roundtrip
found 8 hours ago

Sun, Jul 27 - Thu, Jul 31
BWI
Baltimore
MIA
Miami
$88 Roundtrip, found 2 hours ago
$88
Roundtrip
found 2 hours ago

Fri, Jul 4 - Fri, Jul 11
IAD
Washington
MIA
Miami
$108 Roundtrip, just found
$108
Roundtrip
just found

Tue, Oct 14 - Tue, Oct 28
DCA
Washington
MIA
Miami
$147 Roundtrip, found 17 hours ago
$147
Roundtrip
found 17 hours ago

Fri, Oct 31 - Mon, Nov 3
DCA
Washington
EYW
Key West
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago

Tue, Oct 28 - Fri, Oct 31
IAD
Washington
EYW
Key West
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Find the cheapest month to fly from Washington (WAS) to Miami (MIA)
September is typically the cheapest month to fly
From $52 - $171 per traveler.
Graph displaying average flight prices per month
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Explore a world of travel with Expedia
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