Duck Key Adults Only Holidays
Book a Adults Only Hotel + Flight or Car together to unlock savings
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- Plan, book, travel with confidence
Better together
Save up to £335 when you book a flight and hotel together*
Find the right fit
With over 300,000 hotels worldwide, it's easy to create a perfect package
Rest easy
Packages with flights are ATOL protected
Top flight + Adults Only hotel deals in Duck Key
Price found within the past 48 hours. Click for updated prices.
Top Adults Only Duck Key Hotels
Hawks Cay Resort
61 Hawks Cay Blvd, Marathon, FL
Stay at this beach hotel in Marathon. Enjoy free Wi-Fi, 5 outdoor pools and a full-service spa. Our guests praise the pool and the helpful staff in their reviews. ...
8/10 Very Good! (1,004 reviews)
"Great location and beautiful grounds The rooms are little dated, and the staff are good but not great"
Reviewed on 29 Jun 2025
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages. Flight-inclusive packages are ATOL protected.