A dolphin swimming near a wooden dock and a tree branch in the water.

Find Pet-friendly Hotels in Grassy Key, FL

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

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

  • Be picky

    Search almost a million properties worldwide

Check availability on Grassy Key Pet-friendly Hotels

Tonight
Oct 1 - Oct 2
Tomorrow
Oct 2 - Oct 3
This weekend
Oct 2 - Oct 4
Next weekend
Oct 9 - Oct 11

Our top choices for Grassy Key pet-friendly hotels

A wooden deck with a pool and chairs overlooking a beach with palm trees.
A bar area with stools, a counter, and hanging lanterns.
A pool area with palm trees and a view of the ocean.
A beach with a wooden walkway leading to the water, palm trees, and a clear sky.

1. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
United States
Tiffany
NT$5,886
NT$8,159 total
includes taxes & fees
Nov 1 - Nov 2
Grassy Flats Resort & Beach Club
A wooden deck with two chairs and a table, overlooking a beach with palm trees and the ocean.
A table with breakfast items and a view of the beach.
A two-story beachfront house with a balcony, surrounded by palm trees and a sandy beach.
A swimming pool with a hot tub, palm trees, and a building with a staircase.

2. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
United Kingdom
Adam
NT$3,299
NT$5,145 total
includes taxes & fees
Oct 11 - Oct 12
Rainbow Bend Resort
A tropical resort with a swimming pool, palm trees, and a view of the ocean.
A beach view with palm trees, a hammock, and a chair by the water.
An aerial view of a resort with a swimming pool, palm trees, and a beach area.
A bedroom with a bed, nightstands, a TV, a ceiling fan, and a view of the ocean.

3. Gulf View Waterfront Resort

Gulf View Waterfront Resort
Marathon
United States
Ed
NT$2,989
NT$3,363 total
includes taxes & fees
Oct 4 - Oct 5
Gulf View Waterfront Resort
A bar area with a long counter, bar stools, and a view of the water.
A Marriott Fairfield Inn & Suites with a modern design, featuring a covered entrance and palm trees.
A balcony with a view of the ocean, a round table, and two chairs.
A waterfront property with a large building, a smaller structure with a thatched roof, and several boats docked.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
United States
JOSE
NT$4,293
NT$4,830 total
includes taxes & fees
Oct 8 - Oct 9
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Three colorful drinks on a table with a thatched roof and outdoor seating.
A bar area with wicker chairs and a thatched roof, overlooking a body of water with boats.
A modern living room with a large sectional sofa, a flat-screen TV, and a view of the sea through large windows.
A pool area with lounge chairs, a thatched-roof structure, and a view of the ocean.

5. Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
Marathon
United States
Linda
NT$3,911
NT$4,400 total
includes taxes & fees
Oct 8 - Oct 9
Hampton Inn Marathon - Florida Keys
A wooden dock leading to a row of boats, with a thatched-roof building and palm trees in the background.
An aerial view of a resort with a swimming pool, lounge area, and palm trees.
Two bicycles parked on a sandy beach with the ocean in the background.
A bedroom with a bed, two bedside lamps, a glass table, and a view of a balcony with palm trees.

6. Bonefish Bay Motel

Bonefish Bay Motel
Marathon
United States
William
NT$3,329
NT$3,745 total
includes taxes & fees
Oct 18 - Oct 19
Bonefish Bay Motel
An aerial view of a resort with a central pool, multiple buildings, and a beach area with sun loungers.
A beach with white chairs and kayaks, palm trees, and a clear view of the ocean.
A bar area with wooden chairs, a bar counter, and a variety of bottles and glasses.
An aerial view of a resort with a large building, a beach, and a pier in the background.

7. Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa
Marathon
United States
Andrew
NT$5,705
NT$8,296 total
includes taxes & fees
Oct 4 - Oct 5
Isla Bella Beach Resort & Spa
A marina with boats docked, a lighthouse, and a resort with outdoor seating.
An outdoor dining area with tables and chairs, a pool, and a view of the sea and boats.
A spacious lobby with a central round table, surrounded by wicker chairs, large potted plants, and decorative lanterns.
A room with two sofas, a round coffee table, and a small side table with a vase.

8. Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Marathon
United States
Rick
NT$5,198
NT$7,047 total
includes taxes & fees
Oct 11 - Oct 12
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Terrace/patio
A spacious living area with a large island, wooden furniture, and a ceiling fan.
A bedroom with a large bed, a ceiling fan, a TV on the wall, and a view of the beach through a window.
A beach with palm trees and a clear view of the ocean.

9. Lime Tree Bay Resort

Lime Tree Bay Resort
Long Key
United States
Michael
NT$3,681
NT$5,574 total
includes taxes & fees
Oct 4 - Oct 5
Lime Tree Bay Resort
Two hammocks on a sandy beach with a clear blue sky and turquoise water.
A clear blue pool with white lounge chairs and palm trees, overlooking a calm sea.
A poolside area with lounge chairs, blue umbrellas, and a fire pit.
An aerial view of a coastal resort with a marina, palm trees, and a large building complex.

10. Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
Marathon
United States
amy
NT$4,328
NT$5,990 total
includes taxes & fees
Oct 8 - Oct 9
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
View all properties

Top Grassy Key Hotel Reviews

Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

10/10 Excellent
"The hotel is great but the standout is the hotel’s staff, who are always friendly and super helpful. We’ve stayed here a few times and it’s a great spot with incredible employees especially at the front desk."
Andrew 1-night trip
Posted 7 hours ago
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Explore a world of travel with Expedia