Cheap Flights to Grassy Key from HK$540

View HK$540 flight on Sun, 18 Jan 2026Opens in a new window

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Cheap round-trip flights to Grassy Key

Prices were available within the past 7 days and start at HK$540 for one-way flights and HK$1,057 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 7 Jan - Thu, 8 Jan
LGA
New York
MIA
Miami
HK$1,057 Return, found 6 days ago
HK$1,057
Return
found 6 days ago
Select Delta flight, departing Wed, 7 Jan from New York to Miami, returning Thu, 8 Jan, priced at HK$1,057 found 6 days ago
American Airlines
Mon, 2 Feb - Fri, 6 Feb
LGA
New York
MIA
Miami
HK$1,391 Return, found 13 hours ago
HK$1,391
Return
found 13 hours ago
Select American Airlines flight, departing Mon, 2 Feb from New York to Miami, returning Fri, 6 Feb, priced at HK$1,391 found 13 hours ago
United
Thu, 22 Jan - Wed, 28 Jan
LGA
New York
MIA
Miami
HK$2,080 Return, found 1 day ago
HK$2,080
Return
found 1 day ago
Select United flight, departing Thu, 22 Jan from New York to Miami, returning Wed, 28 Jan, priced at HK$2,080 found 1 day ago
Copa
Fri, 26 Dec - Tue, 30 Dec
SJO
San José
MIA
Miami
HK$3,921 Return, found 2 days ago
HK$3,921
Return
found 2 days ago
Select Copa flight, departing Fri, 26 Dec from San José to Miami, returning Tue, 30 Dec, priced at HK$3,921 found 2 days ago
Aeromexico
Sun, 26 Apr - Wed, 29 Apr
SJO
San José
MIA
Miami
HK$5,195 Return, found 1 day ago
HK$5,195
Return
found 1 day ago
Select Aeromexico flight, departing Sun, 26 Apr from San José to Miami, returning Wed, 29 Apr, priced at HK$5,195 found 1 day ago

Frequently asked questions

How do I find cheap flights to Grassy Key that have flexible change policies?
When it comes to traveling these days, flexibility is key. That's why we have a "No change fee" filter to help you find flexible, cheap flights to Grassy Key. It's on the left of your screen directly underneath the "Flexible change policies" heading.
Which airlines fly to Grassy Key?
With a good range of airlines flying into or near Grassy Key, you're spoiled for choice:

  • American Airlines - 5,497 flights to or near Grassy Key each month, including 5,223 flights to Miami Intl. Airport (MIA) per month.
  • Delta Air Lines - 975 flights to or near Grassy Key each month, including 853 flights to Miami Intl. Airport (MIA) per month.
  • Spirit Airlines - 577 flights to or near Grassy Key each month, including 577 flights to Miami Intl. Airport (MIA) per month.

How can I find cheap tickets to Grassy Key?
You'll always find an amazing deal with Expedia, but our "flexible dates" feature makes it even easier. Enter your preferred travel date, then check the flexible dates box above to see a list of prices for nearby days. HK$1,057 was the cheapest price for a flight to Grassy Key in the last seven days.
How much is a flight to Grassy Key?
The price of a round-trip ticket to Grassy Key in the last seven days ranged between HK$1,057 and HK$6,929. If you were heading one way from New York (LGA), you could have purchased a fare from just HK$540.
What are the most popular airports to fly into in Grassy Key?
When it comes to selecting which Grassy Key airport to jet into, here are your options:

  • Miami Intl. Airport (MIA) - 7,981 flights per month.
  • Key West Intl. Airport (EYW) - 624 flights per month.

When is the cheapest time to fly to Grassy Key?
Jet off on a Tuesday to improve your chances of getting the cheapest flight to Grassy Key. Mondays are usually the next most affordable day to depart. Saturday is normally the costliest day to fly anywhere.
How much is a plane ticket to Grassy Key?
In the last seven days, tickets to Grassy Key fluctuated between HK$1,057 and HK$6,929. Prices usually rise as your travel date nears, so land yourself a bargain today.
What months are the cheapest to book a flight to Grassy Key?
Snap up your ticket in February to enjoy the lowest-priced flights to Grassy Key. December is often the most expensive time to purchase a fare.
Flights to Grassy Key information
Destination airport
Miami Intl.
Destination airport IATA code
MIA
Destination city name
Miami
Return price
HK$6,929

Trending flights to Grassy Key

Prices were available within the past 7 days and start at HK$540 for one-way flights and HK$1,057 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, 23 Mar - Mon, 30 Mar
HKG
Hong Kong SAR
MIA
Miami
HK$6,929 Return, found 17 hours ago
HK$6,929
Return
found 17 hours ago
Select China Airlines flight, departing Mon, 23 Mar from Hong Kong SAR to Miami, returning Mon, 30 Mar, priced at HK$6,929 found 17 hours ago

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