Cheap flights from Washington to Key West from CA $225

View CA $225 flight on Tue, Aug. 19, 2025Opens in a new window

Popular airlines from Washington to Key West

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Washington (WAS) to Key West (EYW)

Prices were available within the past 7 days and start at CA $225 for one-way flights and CA $451 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Aug. 5 - Wed, Aug. 6
BWI
Baltimore
EYW
Key West
CA $451 Roundtrip, found 5 hours ago
CA $451
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Aug. 5 from Baltimore to Key West, returning Wed, Aug. 6, priced at CA $451 found 5 hours ago
Delta
Sat, Aug. 2 - Wed, Aug. 6
BWI
Baltimore
EYW
Key West
CA $493 Roundtrip, found 5 hours ago
CA $493
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, Aug. 2 from Baltimore to Key West, returning Wed, Aug. 6, priced at CA $493 found 5 hours ago
Delta
Sat, Aug. 2 - Tue, Aug. 5
BWI
Baltimore
EYW
Key West
CA $533 Roundtrip, found 5 hours ago
CA $533
Roundtrip
found 5 hours ago
Select Delta flight, departing Sat, Aug. 2 from Baltimore to Key West, returning Tue, Aug. 5, priced at CA $533 found 5 hours ago
Delta
Tue, Aug. 5 - Thu, Aug. 7
BWI
Baltimore
EYW
Key West
CA $553 Roundtrip, found 5 hours ago
CA $553
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Aug. 5 from Baltimore to Key West, returning Thu, Aug. 7, priced at CA $553 found 5 hours ago
American Airlines
Fri, Aug. 1 - Tue, Aug. 5
BWI
Baltimore
EYW
Key West
CA $680 Roundtrip, found 5 hours ago
CA $680
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Fri, Aug. 1 from Baltimore to Key West, returning Tue, Aug. 5, priced at CA $680 found 5 hours ago
United
Mon, Aug. 4 - Thu, Aug. 7
DCA
Washington
EYW
Key West
CA $964 Roundtrip, found 5 hours ago
CA $964
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug. 4 from Washington to Key West, returning Thu, Aug. 7, priced at CA $964 found 5 hours ago

Find the cheapest month to fly from Washington (WAS) to Key West (EYW)

March is typically the cheapest month to fly

From CA $246 - CA $719 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.