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Grassy Key

Name: Coconut Cay Resort & Marina
Rating: 8.4

Dolphin Research Center showing a statue or sculpture and signage

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Grassy Key Flights as Low as $87

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

All deals

One way

Roundtrip

Sat, Aug 30 - Wed, Sep 10

LGA

LaGuardia

MIA

Miami Intl.

$87

Roundtrip

found 4 days ago

Sun, Aug 31 - Tue, Sep 9

EWR

Newark Liberty Intl. Airport

MIA

Miami Intl.

$87

Roundtrip

found 5 hours ago

Mon, Oct 27 - Thu, Nov 6

BWI

Baltimore Washington Intl. Thurgood Marshall

MIA

Miami Intl.

$88

Roundtrip

found 2 days ago

Mon, Sep 22 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

MIA

Miami Intl.

$90

Roundtrip

found 1 day ago

Fri, Sep 26 - Wed, Oct 1

LGA

LaGuardia

MIA

Miami Intl.

$90

Roundtrip

found 1 day ago

Mon, Sep 29 - Wed, Oct 1

LGA

LaGuardia

MIA

Miami Intl.

$92

Roundtrip

found 1 day ago

Wed, Oct 8 - Wed, Oct 15

EWR

Newark Liberty Intl. Airport

MIA

Miami Intl.

$130

Roundtrip

found 3 hours ago

Tue, Nov 4 - Tue, Nov 4

EWR

Newark Liberty Intl. Airport

MIA

Miami Intl.

$142

Roundtrip

found 20 hours ago

Sun, Nov 16 - Mon, Nov 24

LGA

LaGuardia

MIA

Miami Intl.

$147

Roundtrip

found 20 hours ago

Wed, Oct 29 - Wed, Nov 5

EWR

Newark Liberty Intl. Airport

EYW

Key West Intl.

$229

Roundtrip

found 3 days ago

Fri, Oct 31 - Thu, Nov 13

BWI

Baltimore Washington Intl. Thurgood Marshall

EYW

Key West Intl.

$259

Roundtrip

found 16 hours ago

Sat, Dec 13 - Thu, Dec 18

LGA

LaGuardia

EYW

Key West Intl.

$268

Roundtrip

found 3 days ago

Tue, Sep 30 - Tue, Oct 7

EWR

Newark Liberty Intl. Airport

AVT

Aventura Brightline Train Station

$298

Roundtrip

found 1 day ago

Tue, Sep 30 - Tue, Oct 7

EWR

Newark Liberty Intl. Airport

EKW

Miami Central Brightline Train Station

$298

Roundtrip

found 1 day ago

Mon, Oct 13 - Sat, Oct 18

LGA

LaGuardia

AVT

Aventura Brightline Train Station

$312

Roundtrip

found 4 days ago

Mon, Oct 13 - Sat, Oct 18

LGA

LaGuardia

EKW

Miami Central Brightline Train Station

$312

Roundtrip

found 4 days ago

Cheap Flights to Grassy Key

Fall in love at first flight with your vacation to Grassy Key by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Grassy Key on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Grassy Key, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Grassy Key

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Grassy Key with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the MIA airport.

What is the cheapest month to fly to Grassy Key?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Grassy Key are in August, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Grassy Key?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 16 to choose from for your flight to Grassy Key.

What airport is best to fly into Grassy Key?

When you’re planning your trip to Grassy Key, convenience is the name of the game. Luckily, Grassy Key Florida Keys Marathon Airport is nearby so you can deplane and get going on checking off everything on your Grassy Key must-do list.

How much are flights to Grassy Key?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Grassy Key on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $87, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Grassy Key?

The trick to saving a stack of cash on your flight to Grassy Key? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $87 right now, why wait?

Grassy Key Flight Information
Destination airport	Miami Intl.
Destination airport IATA code	MIA
Roundtrip price	$87

Last Minute Hotel Deals in Grassy Key

Rainbow Bend Resort

57784 Overseas Hwy, Marathon, FL

Book a stay at this beach hotel in Marathon. Enjoy a private beach, daily housekeeping, and a garden. Our guests praise the breakfast and the helpful staff in ...

8/10 Very Good! (716 reviews)

Cute, clean

"Older property, no beach access as this is a fishing resort but cute and clean. Cafe was confusing to order food from, but good once we figured it out.... this property is not really walkable to anything like food or a bar. Pool was great."

Reviewed on Aug 14, 2025

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Grassy Flats Resort & Beach Club

58182 Overseas Hwy, Marathon, FL

Book a stay at this beach hotel in Marathon. Enjoy free WiFi, free parking, and 2 outdoor pools. Our guests praise the helpful staff and the property condition ...

9.2/10 Wonderful! (305 reviews)

"Staff was friendly and accommodating. Pool area was nice and relaxing."

Reviewed on Aug 9, 2025

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Gulf View Waterfront Resort

58743 OVERSEAS HWY, Marathon, FL

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. ...

8.4/10 Very Good! (486 reviews)

"This is a fairly clean place. It has a great location to the water with jet ski rental at the property. The only real issue is the rooms are extremely noisy. We could here every step of the occupants above us and the highway noise was very loud in the room."

Reviewed on Jul 18, 2025

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Isla Bella Beach Resort & Spa

1 Knights Key Boulevard, MM 47, Marathon, FL

Stay at this 5-star 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 ...

9/10 Wonderful! (1,025 reviews)

Great vaca

"Everything was good but on arrival the first room was beautiful but the toilet seat was actually broken and falling off Gino. Option was to move to another room the was “close”. However was on another floor in middle of the hotel and had to hike the luggage cart to that room. All the rooms in the ..."

Reviewed on Aug 15, 2025

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Hawks Cay Resort

61 Hawks Cay Blvd, Marathon, FL

Book a stay at this beach 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 ...

8/10 Very Good! (1,003 reviews)

"So fun. Loved my room and having Dolphin Connection right there for my kids. Food at all the restaurants from poolside to fancy was delicious."

Reviewed on Aug 10, 2025

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Fairfield Inn & Suites by Marriott Marathon Florida Keys

13201 Overseas Hwy, Marathon, FL

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 ...

9/10 Wonderful! (1,004 reviews)

"Potential guests should know there is a $17 per day additional fee to park your car!"

Reviewed on Aug 14, 2025

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Lime Tree Bay Resort

68500 Overseas Hwy, Long Key, FL

Stay at this 3.5-star 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. ...

9.2/10 Wonderful! (1,089 reviews)

"We got the apartment off the main resort and it was definitely spacious, clean, and comfy with separate AC units for the living room and bedroom. Clean and well kept. The parking was hidden under a tree which needs to be have it's branches cut for easier access. The sofa bed is not really a bed, ..."

Reviewed on Aug 15, 2025

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Coconut Cay Resort & Marina

7196 Overseas Highway, Marathon, FL

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 ...

8.4/10 Very Good! (1,002 reviews)

"I’ve stayed here before and will stay again! The staff is always so kind and the rooms are clean and comfortable. Free bikes and kayaks was a fun and unexpected amenity. Note for people that are picky about their mattress: my husband did say it was a little firm for him. We highly recommend this ..."

Reviewed on Aug 12, 2025

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See all 2,301 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.

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