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Look for other cheap flights to Key West

$3,049 Cheap flights to Key West

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Key West departing on 29/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Australia to Key West

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:45 - 16:24
SYD
-
EYW
46h 39m
2 stops
Multiple Airlines Logo
14:25 - 20:10
EYW
-
SYD
39h 45m
2 stops
$3,049Multiple Airlines
Sun, 29 Mar - Sun, 5 Apr
Multiple Airlines Logo
10:10 - 22:37
SYD
-
EYW
27h 27m
2 stops
Multiple Airlines Logo
14:25 - 06:55
EYW
-
SYD
26h 30m
1 stop
$3,063Multiple Airlines
Sun, 29 Mar - Sun, 5 Apr
Multiple Airlines Logo
10:10 - 22:37
SYD
-
EYW
27h 27m
2 stops
Multiple Airlines Logo
07:45 - 09:45
EYW
-
SYD
36h 00m
3 stops
$3,713Multiple Airlines
Sun, 29 Mar - Sun, 5 Apr
Multiple Airlines Logo
06:25 - 22:37
SYD
-
EYW
31h 12m
3 stops
Multiple Airlines Logo
07:45 - 09:45
EYW
-
SYD
36h 00m
3 stops
$4,402Multiple Airlines
Sun, 29 Mar - Sun, 5 Apr

momondo Fare Finder

 
Locate flights to Key West that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 15 February 2026.
Use the filters below to find and compare flights to Key West that are best for you.

Fly from

Route

Depart

Return

Price

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 29/3

08:45-16:24

2 stops46h 39m

Key West

Sun 5/4

14:25-20:10

2 stops39h 45m

$3,049

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 29/3

10:10-22:37

2 stops27h 27m

Key West

Sun 5/4

14:25-06:55

1 stop26h 30m

$3,063

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 29/3

10:10-22:37

2 stops27h 27m

Key West

Sun 5/4

07:45-09:45

3 stops36h 00m

$3,713

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 29/3

06:25-22:37

3 stops31h 12m

Key West

Sun 5/4

07:45-09:45

3 stops36h 00m

$4,402

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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Key West flights insights and trends

Explore insights for your Key West flight to craft the best travel plan

How long does it take to fly to Key West?

Flight times vary depending on what airport in Australia you fly out of and what airport in Key West you fly into. For example, flying from Sydney Kingsford Smith to Key West takes 26h 49m on average. On the other hand, flying from Melbourne to Key West takes 50h 39m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Cheap Key West flight deals and tips

Summary info about Key West flight prices, duration and airlines

Best Round-Trip Price

$3,049

Fastest flight time

46h 39m
The best round-trip flight price to Key West from Australia in the last 72 hours is $3,049 (Sydney Kingsford Smith to Key West).
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The fastest flight to Key West from Australia takes 46h 39m (Sydney Kingsford Smith to Key West).
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Frequently asked questions about flying to Key West

What is there to do in Key West when it’s raining?

If you are planning a flight to Key West and are looking to avoid the rain, you should avoid traveling during the months of August and September. These months will typically see 5.1 inches or more of rain, meaning that rain is likely. If you do run into rain while in Key West, there are still things to do and ways to enjoy your trip. For those looking to get out of the rain and do a little shopping, check out Duval Street.

When did momondo last update prices for flights to Key West Airport?

Prices for flights to Key West Airport are refreshed on a daily basis.

How old do you have to be to fly to Key West Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The necessary travel and health documents for your Key West Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Key West?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Key West. Millions of users trust and use momondo every year so you are in good company.

Can I find flights to Key West with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Key West with this policy.

How can momondo help me find flights to Key West?

Once all potential Key West flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Key West

Popular Flights to Key West

Popular routes according to searches in the past day on momondo
Melbourne to Key West Flightsfrom $1,877
Sydney Kingsford Smith to Key West Flightsfrom $1,896