Find hotels in Grassy Key, FL from 3.996.874 ₫

Start date: Check-in selected.
To Date
End date: Check-out
  • Change your mind

    Book hotels with free cancellation
  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
  • Be picky

    Search almost a million properties worldwide

Check prices for these dates

This weekend
Next weekend

Filter by

Guest rating
Guest rating
Star rating

Our top choices for Grassy Key hotels

Rainbow Bend Resort

Rainbow Bend Resort
2.5 star property
Marathon
8.2 out of 10, Very good, (786)
"Great location, friendly service and very clean!"
United States
mike
The price is 2.975.024 ₫
4.531.089 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Rainbow Bend Resort

Gulf View Waterfront Resort

Gulf View Waterfront Resort
2.5 star property
Marathon
8.6 out of 10, Excellent, (528)
"Great property to stay! "
United States
Fernando
Gulf View Waterfront Resort

Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
2.5 star property
Marathon
9.4 out of 10, Exceptional, (361)
" Beautiful grounds, clean rooms.and nice staff. Great location."
United States
Steven
The price is 9.266.521 ₫
10.424.835 ₫ total
includes taxes & fees
7 Jan - 8 Jan 2026
Grassy Flats Resort & Beach Club

Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton

Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton
4.0 star property
Marathon
8.8 out of 10, Excellent, (1271)
"Very nice resort. All the staff was friendly and helpful. The pool bar was great and the bartender was friendly. Our favorite place to stay in Marathon."
United States
William
The price is 7.521.383 ₫
9.450.548 ₫ total
includes taxes & fees
20 Jan - 21 Jan 2026
Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton

Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa
5.0 star property
Marathon
9.2 out of 10, Wonderful, (1067)
"Beautiful property, staff are very friendly "
United States
Leann
The price is 8.117.170 ₫
10.797.191 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Isla Bella Beach Resort & Spa

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
3.0 star property
Marathon
9.0 out of 10, Wonderful, (1000)
"Food great. Grounds kept prestine"
United States
Donald
The price is 6.500.052 ₫
8.348.619 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Lime Tree Bay Resort

Lime Tree Bay Resort
3.5 star property
Long Key
9.2 out of 10, Wonderful, (1111)
"Great place "
United States
Oscar
Lime Tree Bay Resort

Hawks Cay Resort

Hawks Cay Resort
4.0 star property
Marathon
8.0 out of 10, Very good, (1004)
"Excellent place for family vacation "
United States
Aneesah
The price is 6.173.734 ₫
8.784.413 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Hawks Cay Resort

Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
2.5 star property
Marathon
9.2 out of 10, Wonderful, (1051)
"Great staff, clean room, good breakfast "
United States
Kelly
The price is 5.763.204 ₫
6.483.736 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Banana Bay Resort & Marina

Banana Bay Resort & Marina
3.0 star property
Marathon
7.8 out of 10, Good, (1003)
"Clean room, smells good, renewed, excellent bed and pillows , quiet, close to ocean and great peaceful views "
United States
Elba
The price is 3.657.924 ₫
5.151.225 ₫ total
includes taxes & fees
5 Jan - 6 Jan 2026
Banana Bay Resort & Marina

Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
2.5 star property
Marathon
9.0 out of 10, Wonderful, (1000)
"Stay is excellent, highly recommended for families "
United States
Srikanth
The price is 5.912.679 ₫
6.651.764 ₫ total
includes taxes & fees
4 Jan - 5 Jan 2026
Hampton Inn Marathon - Florida Keys

Coconut Cay Resort & Marina

Coconut Cay Resort & Marina
2.0 star property
Marathon
8.4 out of 10, Very good, (1003)
"Nice clean room and friendly accommodating staff."
United States
Jerri Anne
The price is 5.554.385 ₫
6.248.684 ₫ total
includes taxes & fees
22 Jan - 23 Jan 2026
Coconut Cay Resort & Marina

Conch Key Fishing Lodge and Marina

Conch Key Fishing Lodge and Marina
2.5 star property
Marathon
7.8 out of 10, Good, (675)
"Love this place it’s a hidden gem, cozy, comfy, and cute"
United States
Holly
Conch Key Fishing Lodge and Marina

Kingsail Resort

Kingsail Resort
2.0 star property
Marathon
8.6 out of 10, Excellent, (1035)
"Spacious room great staff helpful and location"
United States
William
The price is 3.835.619 ₫
4.315.071 ₫ total
includes taxes & fees
11 Jan - 12 Jan 2026
Kingsail Resort

Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort
4.0 star property
Marathon
8.8 out of 10, Excellent, (1003)
"Great resort with lots of fun things to do. Really enjoyed our stay there. Would highly recommend it."
United Kingdom
Jaskaran
The price is 8.502.700 ₫
11.289.498 ₫ total
includes taxes & fees
7 Jan - 8 Jan 2026
Tranquility Bay Beachfront Hotel and Resort

Aqua Lodge Rentals At Coconut Cay

Aqua Lodge Rentals At Coconut Cay
3.5 star property
Marathon
9.6 out of 10, Exceptional, (200)
"A unique and interesting place to vacation. Relaxing yet close enough to things to do. I highly recommend the Aqua Loge rentals as a place to stay."
United States
Keith
Aqua Lodge Rentals At Coconut Cay

Bonefish Bay Motel

Bonefish Bay Motel
2.5 star property
Marathon
9.2 out of 10, Wonderful, (492)
"It was very welcoming and clean. We will stay here again if we come back to keys. The view, pool and the kayaks were great!"
United States
Leona
Bonefish Bay Motel

Yacht Haven Marina

Yacht Haven Marina
3.5 star property
Marathon
9.8 out of 10, Exceptional, (243)
"Friendly staff and extremely clean."
United States
Travis
Yacht Haven Marina

Knight's Key Suites

Knight's Key Suites
3.0 star property
Marathon
9.0 out of 10, Wonderful, (1157)
"Very good location.. Clean room."
United States
Leonor
The price is 3.263.184 ₫
4.236.876 ₫ total
includes taxes & fees
15 Jan - 16 Jan 2026
Knight's Key Suites

Edgewater Lodge

Edgewater Lodge
2.5 star property
Long Key
8.6 out of 10, Excellent, (801)
"Room was clean. Bathroom was modern. Beds are soft, but comfortable. Check-in was efficient. Beach access was disappointing as there was no direct access from our room. Priced affordably."
United States
Lisa Marie
The price is 6.371.104 ₫
7.167.689 ₫ total
includes taxes & fees
5 Jan - 6 Jan 2026
Edgewater Lodge
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.
Save an average of 15% on thousands of hotels when you're signed in

Stay near popular South Florida attractions

Learn more about Grassy Key

Discover the seaside area of Grassy Key—beaches, a marina and sights from Curry Hammock State Park to Keys Cable Park.

Dolphin Research Center showing signage

Top Grassy Key Hotel Reviews

More cheap stays in Grassy Key

Hotels in Grassy Key with star rating