Cheap Flights to Grassy Key

View ₩102,300 flight on Sun, Oct 12, 2025Opens in a new window

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How much is the cheapest flight to Grassy Key?

Prices were available within the past 7 days and start at ₩102,300 for one-way flights and ₩177,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 12 - Thu, Nov 13
JFK
New York
MIA
Miami
₩177,400 Roundtrip, found 1 day ago
₩177,400
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 12 from New York to Miami, returning Thu, Nov 13, priced at ₩177,400 found 1 day ago
United
Thu, Oct 2 - Sat, Oct 11
EWR
New York
MIA
Miami
₩287,700 Roundtrip, found 11 hours ago
₩287,700
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Oct 2 from New York to Miami, returning Sat, Oct 11, priced at ₩287,700 found 11 hours ago
American Airlines
Mon, Sep 29 - Tue, Oct 7
EWR
New York
MIA
Miami
₩288,300 Roundtrip, found 2 days ago
₩288,300
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Sep 29 from New York to Miami, returning Tue, Oct 7, priced at ₩288,300 found 2 days ago
Alaska Airlines
Mon, Oct 27 - Wed, Nov 5
ICN
Seoul
MIA
Miami
₩902,500 Roundtrip, found 1 day ago
₩902,500
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Oct 27 from Seoul to Miami, returning Wed, Nov 5, priced at ₩902,500 found 1 day ago
Korean Air
Mon, Mar 9 - Thu, Mar 12
ICN
Seoul
MIA
Miami
₩1,019,500 Roundtrip, found 5 days ago
₩1,019,500
Roundtrip
found 5 days ago
Select Korean Air flight, departing Mon, Mar 9 from Seoul to Miami, returning Thu, Mar 12, priced at ₩1,019,500 found 5 days ago

Find the cheapest month to fly from Columbus (CMH) to Miami (MIA)

August is typically the cheapest month to fly

From ₩177,447 - ₩332,466 per traveler.

Searching for cheap flights to Grassy Key? No travel company presents more choices than Expedia if you're looking to compare flights to Grassy Key. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Marathon. Expedia provides the cheapest flights to many destinations in Marathon and you may find even greater savings if you combine your flight with a hotel stay in Grassy Key.

Flights to Grassy Key information
Destination airport
Miami Intl.
Destination airport IATA code
MIA
Destination city name
Miami
Roundtrip price
₩169,100

Trending flights to Grassy Key

Prices were available within the past 7 days and start at ₩102,300 for one-way flights and ₩177,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Feb 9 - Tue, Feb 24
ICN
Seoul
MIA
Miami
₩882,600 Roundtrip, just found
₩882,600
Roundtrip
just found
Select Delta flight, departing Mon, Feb 9 from Seoul to Miami, returning Tue, Feb 24, priced at ₩882,600 just found
*Available to Expedia members.