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Grassy Key Flights as Low as $52
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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 February, 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 $52, 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 $52 right now, why wait?
Destination airport | Miami Intl. |
|---|---|
Destination airport IATA code | MIA |
Roundtrip price | $51 |
Last Minute Hotel Deals in Grassy Key
Rainbow Bend Resort
Great Location Staff was Friendly Would stay there again
Reviewed on Jan 22, 2026
Grassy Flats Resort & Beach Club
We did not have breakfast there.
Reviewed on Jan 18, 2026
Gulf View Waterfront Resort
I stayed here for one week by myself with my dog. We had a lovely time and thoroughly enjoyed the king suite Sea view room. The room had been recently updated and felt like a small apartment. This area was very safe and extremely dog friendly, the pool was very inviting and the property sits right ...
Reviewed on Jan 13, 2026
Hawks Cay Resort
The room was spacious, clean, and modern. The pools and pool areas were clean and maintained. The restaurants and cafe had really good food. The EV charging station was very convenient.
Reviewed on Jan 21, 2026
Isla Bella Beach Resort & Spa
great resort
Reviewed on Jan 19, 2026
Lime Tree Bay Resort
Check-in was a little weird. They checked me into an occupied room. That was sorted out. Everything was perfect rooms were clean, spacious and well maintained.
Reviewed on Jan 18, 2026
Tranquility Bay Beachfront Hotel and Resort
Clean and comfortable room. Pleasant staff. Nice grounds, beach, and pools.
Reviewed on Jan 20, 2026
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Wonderful! Spacious rooms! Great amenities that made for a memorable vacation.
Reviewed on Jan 19, 2026
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