Grassy Key Holidays

Book a Hotel + Flight or Car together to unlock savings

Photo by Monica Ferro

  • Plan, book, travel with confidence

  • Better together

    Save up to NZ$2,400 when you book a flight and hotel together*

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    With over 300,000 hotels worldwide, it's easy to create a perfect package

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Grassy Key Holiday

Our pick of the best Grassy Key Hotel Deals

Rainbow Bend Resort

Rainbow Bend Resort

57784 Overseas Hwy Marathon FL
Fully refundableReserve now, pay when you stay
NZ$267
9 Aug - 10 Aug
includes taxes & fees
8.2/10 Very good! (1,009 reviews)
"The property and the room smell really bad. The bathroom door does not working right."

Reviewed on 5 Aug 2026

Rainbow Bend Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

58182 Overseas Hwy Marathon FL
NZ$379
11 Aug - 12 Aug
includes taxes & fees
9.4/10 Exceptional! (481 reviews)
"Wish the AC was better. Amazing staff all around. Comfortable. A true beauty"

Reviewed on 3 Aug 2026

Grassy Flats Resort & Beach Club
Gulf View Waterfront Resort

Gulf View Waterfront Resort

58743 OVERSEAS HWY Marathon FL
NZ$171
9 Aug - 10 Aug
includes taxes & fees
Gulf View Waterfront Resort
See all 2,361 properties in Grassy Key
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.

What to do in Grassy Key

Marathon: Rhum Runner Aqua Park Adventure

Marathon: Rhum Runner Aqua Park Adventure

NZ$65
per adult
Marathon: Rhum Runner Aqua Park Adventure
Day Sailing Adventure in the Florida Marine Sanctuary

Day Sailing Adventure in the Florida Marine Sanctuary

NZ$208
per adult
100% of travellers recommend
Day Sailing Adventure in the Florida Marine Sanctuary
Private Customizable Charter in Marathon Florida

Private Customizable Charter in Marathon Florida

NZ$562
per traveller
100% of travellers recommend
Private Customizable Charter in Marathon Florida
See all activities in Grassy Key

Frequently asked questions

How much does a Grassy Key holiday package cost?
Starting from just , a package is your portal to low-priced travel. Custom build your Grassy Key trip by selecting from our wide range of airfares, hotels and rental cars.
How do I get a cheap travel package to Grassy Key?
Search for flights that fit your schedule, add a hotel room to your booking and watch how much you save with a Grassy Key holiday package. It's that simple! From hotels and flights to activities and rental cars, Expedia is where your cheap getaway begins. And with over 550 air carriers and 1 000 000 hotels around the world to pick from, you'll never be short of choice.
Where should I stay in Grassy Key?
Close to the action. Many travellers like to book hotels within easy reach of top sights, like Dolphin Research Centre, Curry Hammock State Park and Crawl Key.
What are the top hotels in Grassy Key?
Make a reservation at Gulf View Waterfront Resort. It's one of this neighbourhood's most popular hotels. Another highly rated option in Grassy Key is Sun Outdoors Marathon.
How far in advance should I book my Grassy Key holiday?
It's difficult to pick the ideal time for airfares, but we normally say the earlier, the better. Many international flights on Expedia become available to compare up to a year in advance. If you can't book ahead, don't stress. Budget prices appear from time to time within a few weeks of departure dates.
What does an Expedia Grassy Key travel package include?
It all depends on what sort of escape you want to have. Grassy Key holiday deals can include hotels, flights and car rentals. You can mix and match to find the travel package that suits you. You can also add on experiences and activities after you've booked to get even bigger discounts.
What should I know before booking a Grassy Key travel package?
A package can be easier on the wallet than individually booking everything you need for your getaway. For example, bundle your hotels, flights and rental cars and save a tidy sum. No matter your holiday plans, there's sure to be a package within your budget.
Can I choose my airline with a Grassy Key Expedia holiday package?
With a holiday package, you're the boss. Whether you're looking to fly to Grassy Key in economy or first class, simply choose from the available airline options. Expedia has access to more than 550 partner airlines worldwide.
If I'm not able to travel, can I cancel my Grassy Key holiday package?
Whether it's your hotel, flight or rental car, you can cancel or change it. Locked in your Grassy Key holiday package in the last 24 hours? You may be able to make changes for free. For bookings made more than 24 hours ago, you may incur a fee from your hotel, airline or car rental company. For more information, take a look at our Customer Service Portal. We're here to help you every step of the way.

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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.