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Hotels in Grassy Key

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Choose from 2338 Grassy Key Hotel Deals

Rainbow Bend Resort

Rainbow Bend Resort

2.5 out of 5
57784 Overseas Hwy Marathon FL
  • 22 min walk from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our ...
8.2/10 Very Good! (1,002 reviews)
"When was clean, Property was clean and organized, staff was really sweet and helpful. Best part was the lounge chairs on the beach watching the sunset. Close to a lot of state parks which we really enjoyed. Overall we’ll be back."

Reviewed on Nov 7, 2026

Rainbow Bend Resort
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
  • 4 min walk from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and daily housekeeping. Our guests praise the helpful staff and the clean rooms in our reviews. ...
Gulf View Waterfront Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
  • 14 min walk from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and 2 outdoor pools. Our guests praise the helpful staff and the property condition in our reviews. ...
9.4/10 Exceptional! (504 reviews)
"Loved everything about this place!"

Reviewed on Nov 5, 2026

Grassy Flats Resort & Beach Club
Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

5 out of 5
1 Knights Key Boulevard Marathon FL
  • 29 min drive from Dolphin Research Center
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
9.2/10 Wonderful! (1,302 reviews)
"Amazing hotel"

Reviewed on Nov 5, 2026

Isla Bella Beach Resort & Spa
Lime Tree Bay Resort

Lime Tree Bay Resort

3.5 out of 5
68500 Overseas Hwy Long Key FL
  • 23 min drive from Dolphin Research Center
Book a stay at this beach resort in Long Key. Enjoy free WiFi, free parking, and 3 outdoor pools. Our guests praise the pool and the helpful staff in our reviews. ...
9.4/10 Exceptional! (1,579 reviews)
"Clean room, staff were nice and breakfast local and convenient. Enjoyed my stay😊"

Reviewed on Nov 6, 2026

Lime Tree Bay Resort
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

3 out of 5
13201 Overseas Hwy Marathon FL
  • 13 min drive from Dolphin Research Center
Book a stay at this business-friendly hotel in Marathon. Enjoy free breakfast, free WiFi, and 2 outdoor pools. Our guests praise the breakfast and the restaurant ...
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Kingsail Resort

Kingsail Resort

2 out of 5
7050 Overseas Highway Marathon FL
  • 20 min drive from Dolphin Research Center
Stay at this motel in Marathon. Enjoy free WiFi, free parking, and a marina. Our guests praise the helpful staff and the clean rooms in our reviews. Popular ...
8.6/10 Excellent! (1,134 reviews)
"The room was clean and spacious with a full kitchen . The staff was very friendly and accommodating. We were there for 3 nights and for us the location was perfect. This was our 2nd time staying here and will definitely return!"

Reviewed on Nov 6, 2026

Kingsail Resort
Hawks Cay Resort

Hawks Cay Resort

4 out of 5
61 Hawks Cay Blvd Marathon FL
  • 6 min drive from Dolphin Research Center
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 3 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
8.2/10 Very Good! (1,003 reviews)
"This resort never disappoints! Love the property, amenities, and the adult pool"

Reviewed on Nov 2, 2026

Hawks Cay Resort
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

3 out of 5
2146 Overseas Hwy Marathon FL
  • 26 min drive from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, 2 outdoor pools, and a beach locale. Our guests praise the pool and the helpful staff in our reviews. ...
9/10 Wonderful! (1,006 reviews)
"Decor was very nice staff pleasant at Marriott excellent at yacht club Sad the large pool and hot tub not available wade pool was very hot on an 85 degree day beach area not very well maintained sand sinking away on jetty and broken chairs I would have preferred a table and chairs to dine at in my ..."

Reviewed on Nov 6, 2026

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

4 out of 5
2600 Overseas Hwy Marathon FL
  • 26 min drive from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, free parking, and 3 outdoor pools. Our guests praise the pool and the helpful staff in our reviews. ...
Tranquility Bay Beachfront Hotel and Resort
Coconut Cay Resort & Marina

Coconut Cay Resort & Marina

3 out of 5
7196 Overseas Highway Marathon FL
  • 20 min drive from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and a marina. Our guests praise the helpful staff and the clean rooms in our reviews. Popular ...
Coconut Cay Resort & Marina
Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

3 out of 5
1480 Overseas Hwy Marathon FL
  • 27 min drive from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, a marina, and free bicycles on site. Our guests praise the helpful staff and the clean rooms in our reviews. ...
Captain Pips Marina & Hideaway
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.

Find cheap hotels in Grassy Key

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Choosing the right hotel in Florida has everything to do with the way you want your trip to go. If you’ve scribbled a few obscure destinations on your itinerary, you probably already have a good sense of how your getaway is taking shape. Lean into that by booking one of Grassy Key’s 2,338 hotels. Choose the one that best catches your trip’s tourist drift.

If you’re traveling during the week for business, Hotwire can score you a luxury hotel for as low as $104. In town for pleasure? Hotwire still has you covered. If you’re in the mood for a quick last-minute weekend getaway or spa retreat, you can get great Grassy Key hotel deals at the last minute.

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Frequently Asked Questions About Grassy Key hotels

Where can I find the best last-minute travel deals?

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How many hotels are there in Grassy Key?

With over 2,338 hotels in Grassy Key, you’re sure to find one that best matches your travel mood. When you book with Hotwire, you can score a stellar home away from home for as low as $104.

How to find cheap car rentals in Grassy Key?

Finding a cheap car rental deal in Grassy Key is as easy as scoring cheap hotels in Grassy Key. Hotwire partners with top-of-the-line car rental companies to bring you a large selection of affordable options. Whether you’re in need of a large SUV for the entire family or a more compact but stylish vehicle, Hotwire has you covered. You can unlock great car rental deals if you book a Hotwire Hot Rate at the last minute.