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

Find 4 Star Hotels in Grassy Key, FL from $203

  • Upfront pricing

    Our total price for your stay includes taxes and fees

  • Treat yourself

    Save 10% or more on over 100,000 hotels worldwide with Member Prices
    Learn about One Key

  • Be picky

    Search almost a million properties worldwide

Check availability on Grassy Key 4 Star Hotels

Tonight
Sep 16 - Sep 17
Tomorrow
Sep 17 - Sep 18
This weekend
Sep 18 - Sep 20
Next weekend
Sep 25 - Sep 27

Our top choices for Grassy Key 4-star hotels

A pool area with lounge chairs and umbrellas, surrounded by palm trees.
A modern living room with a balcony overlooking the sea, furnished with a sofa, chairs, and a dining table.
A pathway leading to a pool area with palm trees and a sunset view.
A spacious lobby with high ceilings, large windows, and a central coffee table surrounded by sofas and chairs.

1. Hawks Cay Resort

Hawks Cay Resort
Marathon
United States
Clara
$255 nightly
$286 total
Sep 23 - Sep 24
Total with taxes and fees
Hawks Cay Resort
A swimming pool surrounded by palm trees and lounge chairs.
A spacious living room with a wooden coffee table, a striped sofa, and a television on a wooden cabinet.
A wooden deck with blue chairs overlooking a beach with palm trees and the ocean.
An aerial view of a resort with a central swimming pool, surrounded by lush greenery and palm trees, with a view of the ocean.

2. Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort
Marathon
United Kingdom
Stuart
$282 nightly
$318 total
Sep 17 - Sep 18
Total with taxes and fees
Tranquility Bay Beachfront Hotel and Resort
A marina with boats docked, a lighthouse, and a resort with outdoor seating.
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.
An outdoor dining area with tables and chairs, a pool, and a view of the sea and boats.

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

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Marathon
United States
DANA
$180 nightly
$203 total
Sep 27 - Sep 28
Total with taxes and fees
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
A wooden deck with a pool and chairs overlooking a beach with palm trees.
A beach with a wooden walkway leading to the water, palm trees, and a clear sky.
A hotel room with a sofa, a desk, a chair, a TV, and a balcony with curtains.
A pool area with palm trees and a view of the ocean.

4. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
United States
Tiffany
$236 nightly
$266 total
Sep 23 - Sep 24
Total with taxes and fees
Grassy Flats Resort & Beach Club
A resort pool with palm trees and lounge chairs, surrounded by a beachfront.
A modern living room with a sofa, chairs, a dining table, a TV, and a view of the ocean.
A modern kitchen with white cabinetry, a stainless steel oven, and a large island with a bowl of fruit.
A resort with a large pool surrounded by lounge chairs, a beach area, and a building with multiple floors.

5. Villas At Hawks Cay Resort

Villas At Hawks Cay Resort
Marathon
United States
Gabriela
$434 nightly
$488 total
Sep 17 - Sep 18
Total with taxes and fees
Villas At Hawks Cay Resort
A large hotel with a pool, multiple balconies, and palm trees.
A beach with clear water and gentle waves.
A large, two-story hotel with a swimming pool in front.
A beachside wedding setup with wicker chairs and a white canopy, palm trees, and a sunset view.

6. Marlin Bay Resort & Marina

Marlin Bay Resort & Marina
Marathon
United States
Chardell
Marlin Bay Resort & Marina
A covered outdoor area with a wooden deck, white railings, and a view of the ocean.
A resort with multiple buildings, a large central pool, and a view of the ocean.
A swimming pool with lounge chairs and palm trees.
A spacious dining area with a long table, wicker chairs, and hanging wicker lamps.

7. Waterfront Luxury Villa

Waterfront Luxury Villa
Marathon Shores
Waterfront Luxury Villa
A living room with a sofa, a glass coffee table, a television on a cabinet, and a sliding glass door leading to an outdoor area.
A kitchen with granite countertops, a stainless steel sink, a coffee maker, and a ceiling fan.
A modern kitchen with white cabinets, stainless steel appliances, and a granite countertop.
A living room with a sofa, armchair, and coffee table, a dining area with a table and chairs, and a kitchen in the background.

8. Oceanfront Duck Key Villa: 2 Marinas Steps Away!

Oceanfront Duck Key Villa: 2 Marinas Steps Away!
Marathon
Oceanfront Duck Key Villa: 2 Marinas Steps Away!
Save an average of 15% on thousands of hotels when you're signed in

Explore similar 5-star hotels

Many 5-star hotels have the same amenities as 4-star hotels. See all 5-star hotels in Grassy Key.
Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

1 Knights Key Boulevard Marathon FL
$283 nightly
$318 total
Sep 27 - Sep 28
Total with taxes and fees
Isla Bella Beach Resort & Spa
Sea Glass Cove

Sea Glass Cove

59720 Overseas Hwy Marathon FL
Get ratesSea Glass Cove
Still don't see what you're looking for?
See all properties in Grassy Key.
You can also use these popular filters to refine your search.
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.

Learn more about Grassy Key

Experience the seaside area of Grassy Key—beaches, a scenic waterfront, and sights from Curry Hammock State Park to Grassy Key Marina.

See all hotels in Grassy Key
A building with a blue awning labeled "Dolphin Research Center" and a dolphin logo.

Top Grassy Key Hotel Reviews

Hawks Cay Resort

Hawks Cay Resort

10/10 Excellent
"Beautiful resort"
Katherine 2-night trip
Posted 1 day ago
Hawks Cay Resort
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

10/10 Excellent
"Very nice hotel. Stayed with the family and we are very pleased. Staff was really nice and hotel room was very clean. Also the restaurant food was excellent."
Penelope 2-night trip
Posted 3 days ago
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

8/10 Good
"The property is beautiful and staff is friendly and helpful in every way. It is a bit dated, even though they have tried to update with new fixtures, etc. When we walked in the room, it was very musty smelling, even though they had a air purifier going in the room. You can't beat the views if you have an ocean view. The pool loungers need to have new cushions put in as the were very worn out. I also found a roach in my empty drinking glass the next morning after the first evening there, so I showed them pics and video and asked if they would come and spray, which they did, but it was very gross and made me a bit leery of sleeping even though the room seemed clean. The smell from the seaweed was nasty, but there is really nothing they can do about that. The elevator broke on our last day there, but they offered help if we needed it bringing out luggage down. Again, staff was GREAT, but the property could use some refreshing."
Renee 3-night trip
Posted 8 days ago
Grassy Flats Resort & Beach Club

Find out more about Grassy Key

Grassy Key Four Star Hotel Information

When you need to book a room with luxurious amazing amenities and the best rates, the 4 star hotels in Grassy Key, Marathon are incredible options. Known for their extra perks, first-rate service, and fantastic locations, each of the Grassy Key 4 star hotels offers the ultimate experience for globe-trotting travelers. Relax in your expertly designed room. Kick back with around-the-clock room service.

Get a good night’s sleep with the ultra-plush bedding, and freshen up in the morning with designer-inspired body products. It’s all available when you stay at one of the top book a four star hotels in Grassy Key. What’s more, thanks to Expedia you might even score a cheap great deal on a 4 star hotel in Grassy Key, Marathon, areas near the hottest attractions, so you can plan a sightseeing adventure and take advantage of unbeatable discounts in one fell swoop.

Whether you’re putting together a serene getaway or want to revel in the most vibrant entertainment district, 4 star Grassy Key hotels offer everything your heart desires.

Frequently asked questions

What are the best 4-star hotels in Grassy Key?
Create lifelong vacation memories in Grassy Key at Hawks Cay Resort. Highly rated by Expedia customers, this 4-star hotel offers loads of conveniences for a relaxing and comfortable stay.
How much does it cost to stay in a 4-star hotel in Grassy Key?
With Expedia's handy filter tool, scoring a terrific deal on a 4-star hotel in Grassy Key just got easier. Start by entering your chosen travel dates and length of your stay. Then sort the results by price and pick a property that best fits your style and budget.
  • Search for the lowest price from $318
What's the difference between 5-star and 4-star hotels in Grassy Key?
If you choose to spend your vacation at a 4-star hotel in Grassy Key, you'll usually find plenty of amenities to keep you relaxed, such as a pool, gym and restaurant. You can enjoy top-quality service and upscale accommodations. Pick a 5-star hotel and you'll have access to a few more bells and whistles — think on-site spas, concierge assistance and indulgent turndown services. You're likely to get more amenities and first-rate services at a 5-star getaway, though both are fabulous options for luxury guests.

Explore a world of travel with Expedia