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Grassy Key

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Grassy Key Flights as Low as $77

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

Spirit Airlines
Tue, Dec 10 - Fri, Dec 13
LGA
LaGuardia
MIA
Miami Intl.
$77 Roundtrip, found 2 hours ago
$77
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Tue, Dec 10 from LaGuardia to Miami Intl., returning Fri, Dec 13, priced at $77 found 2 hours ago
Frontier Airlines
Sat, Dec 7 - Thu, Dec 19
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$79 Roundtrip, just found
$79
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Dec 7 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Thu, Dec 19, priced at $79 just found
Spirit Airlines
Tue, Dec 10 - Tue, Dec 17
LGA
LaGuardia
MIA
Miami Intl.
$83 Roundtrip, found 2 days ago
$83
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Tue, Dec 10 from LaGuardia to Miami Intl., returning Tue, Dec 17, priced at $83 found 2 days ago
Frontier Airlines
Wed, Dec 11 - Thu, Dec 19
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$83 Roundtrip, found 8 hours ago
$83
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Wed, Dec 11 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Thu, Dec 19, priced at $83 found 8 hours ago
Delta
Wed, Jan 22 - Wed, Jan 22
LGA
LaGuardia
MIA
Miami Intl.
$127 Roundtrip, found 22 hours ago
$127
Roundtrip
found 22 hours ago
Select Delta flight, departing Wed, Jan 22 from LaGuardia to Miami Intl., returning Wed, Jan 22, priced at $127 found 22 hours ago
American Airlines
Tue, Dec 10 - Tue, Dec 17
LGA
LaGuardia
MIA
Miami Intl.
$127 Roundtrip, found 2 days ago
$127
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Dec 10 from LaGuardia to Miami Intl., returning Tue, Dec 17, priced at $127 found 2 days ago
United
Tue, Dec 10 - Tue, Dec 17
LGA
LaGuardia
MIA
Miami Intl.
$158 Roundtrip, found 2 days ago
$158
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 10 from LaGuardia to Miami Intl., returning Tue, Dec 17, priced at $158 found 2 days ago
Frontier Airlines
Tue, Feb 25 - Tue, Mar 4
LAX
Los Angeles Intl.
MIA
Miami Intl.
$158 Roundtrip, found 4 days ago
$158
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, Feb 25 from Los Angeles Intl. to Miami Intl., returning Tue, Mar 4, priced at $158 found 4 days ago
JetBlue Airways
Mon, Dec 16 - Tue, Dec 17
LGA
LaGuardia
MIA
Miami Intl.
$206 Roundtrip, found 22 hours ago
$206
Roundtrip
found 22 hours ago
Select JetBlue Airways flight, departing Mon, Dec 16 from LaGuardia to Miami Intl., returning Tue, Dec 17, priced at $206 found 22 hours ago
American Airlines
Tue, Jan 28 - Wed, Feb 5
LAX
Los Angeles Intl.
EYW
Key West Intl.
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jan 28 from Los Angeles Intl. to Key West Intl., returning Wed, Feb 5, priced at $258 found 2 days ago
Delta
Tue, Jan 7 - Tue, Jan 14
ATL
Hartsfield-Jackson Atlanta Intl.
EYW
Key West Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 7 from Hartsfield-Jackson Atlanta Intl. to Key West Intl., returning Tue, Jan 14, priced at $309 found 2 days ago
American Airlines
Sun, Jan 19 - Sun, Apr 6
BAQ
Ernesto Cortissoz Intl.
MIA
Miami Intl.
$368 Roundtrip, found 1 day ago
$368
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Jan 19 from Ernesto Cortissoz Intl. to Miami Intl., returning Sun, Apr 6, priced at $368 found 1 day ago
Copa
Sun, Dec 8 - Wed, Jan 29
BAQ
Ernesto Cortissoz Intl.
MIA
Miami Intl.
$384 Roundtrip, found 21 hours ago
$384
Roundtrip
found 21 hours ago
Select Copa flight, departing Sun, Dec 8 from Ernesto Cortissoz Intl. to Miami Intl., returning Wed, Jan 29, priced at $384 found 21 hours ago
Alaska Airlines
Tue, Dec 31 - Tue, Jan 14
LAX
Los Angeles Intl.
MIA
Miami Intl.
$399 Roundtrip, found 3 hours ago
$399
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Dec 31 from Los Angeles Intl. to Miami Intl., returning Tue, Jan 14, priced at $399 found 3 hours ago
LATAM Airlines Group
Tue, Dec 10 - Wed, Feb 5
BAQ
Ernesto Cortissoz Intl.
MIA
Miami Intl.
$454 Roundtrip, found 21 hours ago
$454
Roundtrip
found 21 hours ago
Select LATAM Airlines Group flight, departing Tue, Dec 10 from Ernesto Cortissoz Intl. to Miami Intl., returning Wed, Feb 5, priced at $454 found 21 hours ago
avianca
Tue, Dec 10 - Wed, Feb 5
BAQ
Ernesto Cortissoz Intl.
MIA
Miami Intl.
$470 Roundtrip, found 21 hours ago
$470
Roundtrip
found 21 hours ago
Select avianca flight, departing Tue, Dec 10 from Ernesto Cortissoz Intl. to Miami Intl., returning Wed, Feb 5, priced at $470 found 21 hours 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 December, 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 $77, 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 $77 right now, why wait?

Grassy Key Flight Information
Destination airport
Miami Intl.
Destination airport IATA code
MIA
Roundtrip price
$206

Last Minute Hotel Deals in Grassy Key

Rainbow Bend Resort
Rainbow Bend Resort
2.5 out of 5
57784 Overseas Hwy, Marathon, FL
The price is $410 per night from Dec 24 to Dec 25
$410
includes taxes & fees
Dec 24 - Dec 25
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 ...
8.2/10 Very Good! (532 reviews)
"The Hieaway Cafe on premise is the reason to stay here. It was cute and fabulous"

Reviewed on Nov 18, 2024

Rainbow Bend Resort
Gulf View Waterfront Resort
Gulf View Waterfront Resort
2.5 out of 5
58743 OVERSEAS HWY, Marathon, FL
The price is $107 per night from Dec 1 to Dec 2
$107
includes taxes & fees
Dec 1 - Dec 2
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. ...
8.6/10 Excellent! (377 reviews)
"We enjoyed our stay! We had 2 bedrooms and a large living area . We were given an upgrade without asking! There was plenty of room to enjoy. The location was lovely and we enjoyed the heated pool on cool nights ."

Reviewed on Nov 24, 2024

Gulf View Waterfront Resort
Grassy Flats Resort & Beach Club
Grassy Flats Resort & Beach Club
2.5 out of 5
58182 Overseas Hwy, Marathon, FL
The price is $161 per night from Dec 8 to Dec 9
$161
includes taxes & fees
Dec 8 - Dec 9
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 ...
9.4/10 Exceptional! (205 reviews)
"We really love the place the room have a beautiful view yo the beach i highly recommended."

Reviewed on Nov 17, 2024

Grassy Flats Resort & Beach Club
Hawks Cay Resort
Hawks Cay Resort
4 out of 5
61 Hawks Cay Blvd, Marathon, FL
The price is $291 per night from Dec 4 to Dec 5
$291
includes taxes & fees
Dec 4 - Dec 5
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 ...
7.8/10 Good! (1,006 reviews)
"Better than expected. Clean ,very friendly staff."

Reviewed on Nov 25, 2024

Hawks Cay Resort
Isla Bella Beach Resort & Spa
Isla Bella Beach Resort & Spa
5 out of 5
1 Knights Key Boulevard, MM 47, Marathon, FL
The price is $322 per night from Nov 30 to Dec 1
$322
includes taxes & fees
Nov 30 - Dec 1
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 ...
8.8/10 Excellent! (1,005 reviews)
"The setting is beautiful"

Reviewed on Nov 25, 2024

Isla Bella Beach Resort & Spa
Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton
Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton
4 out of 5
1996 Overseas Highway, Marathon, FL
The price is $182 per night from Dec 8 to Dec 9
$182
includes taxes & fees
Dec 8 - Dec 9
Stay at this 4-star beach hotel in Marathon. Enjoy free WiFi, 4 outdoor pools, and 4 restaurants. Our guests praise the breakfast and the pool in our reviews. ...
8.8/10 Excellent! (1,443 reviews)
"cheap and good"

Reviewed on Nov 22, 2024

Faro Blanco Resort & Yacht Club Marathon, Curio by Hilton
Lime Tree Bay Resort
Lime Tree Bay Resort
3.5 out of 5
68500 Overseas Hwy, Long Key, FL
The price is $200 per night from Dec 2 to Dec 3
$200
includes taxes & fees
Dec 2 - Dec 3
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! (1,019 reviews)
Perfect for a couple...
"Anniversary trip and this resort was perfect. Quiet, clean and great sunsets."

Reviewed on Nov 25, 2024

Lime Tree Bay Resort
Banana Bay Resort & Marina
Banana Bay Resort & Marina
3 out of 5
4590 Overseas Highway, Marathon, FL
The price is $193 per night from Dec 10 to Dec 11
$193
includes taxes & fees
Dec 10 - Dec 11
Stay at this 3-star golf hotel in Marathon. Enjoy free breakfast, free parking, and a marina. Our guests praise the pool and the bar in our reviews. Popular ...
7.6/10 Good! (1,005 reviews)
"Good"

Reviewed on Nov 25, 2024

Banana Bay Resort & Marina
See all 2,205 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.