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Cheap flights from Sydney to Key West from $1,853

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — EYW
6 Apr — 13 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Key West

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Key West
Explore the most affordable flight options available from Sydney to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 March 2026.

Sun 19/409:15
SYD
-
EYW
2 stops39h 31m
Delta
Sun 26/407:33
EYW
-
SYD
2 stops33h 17m
Delta
Deal found 5/3$1,853
Sun 3/521:25
SYD
-
EYW
2 stops58h 54m
American Airlines
Wed 6/508:05
EYW
-
SYD
2 stops33h 00m
American Airlines
Deal found 6/3$2,334
Tue 27/1013:05
SYD
-
EYW
1 stop42h 07m
American Airlines
Sat 31/1018:11
EYW
-
SYD
2 stops47h 49m
American Airlines
Deal found 5/3$2,472
Tue 27/1012:10
SYD
-
EYW
2 stops41h 56m
United Airlines
Sat 31/1016:05
EYW
-
SYD
2 stops47h 55m
United Airlines
Deal found 2/3$2,688
Sun 19/412:00
SYD
-
EYW
1 stop20h 49m
American Airlines
Sun 26/414:29
EYW
-
SYD
2 stops26h 36m
American Airlines
Deal found 5/3$2,838

Find flight deals from Sydney to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 March 2026.

Round-trip from

$1,853
Delta
  • Delta
  • 19/4-26/4
  • 4 total stops
  • 72h 48m total
  • Sydney to Key West
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 7 March 2026.
Use the filters below to find and compare flights from Sydney to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 19/4

09:15-10:46

2 stops39h 31m

Key West

Sun 26/4

07:33-06:50

2 stops33h 17m

$1,853

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 3/5

21:25-18:19

2 stops58h 54m

Key West

Wed 6/5

08:05-07:05

2 stops33h 00m

$2,334
Fastest return journey

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 19/4

12:00-18:49

1 stop20h 49m

Key West

Sun 26/4

14:29-07:05

2 stops26h 36m

$2,838

SydneyKey West

SYD - EYW

SYDEYW

Sydney Kingsford Smith

Sun 19/4

07:40-17:02

2 stops47h 22m

Key West

Sun 26/4

19:30-09:05

3 stops47h 35m

$2,946

Flights are sorted by cheapest return flights first.

Deals found on 5/3

Sorted by cheapest first

Best time to book a flight from Sydney to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to Key West?

    For as low as $1,853, Delta can have you in Key West from Sydney in 39h 31m. The distance between Sydney and Key West is about 14820 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Sydney to Key West that include hotel bookings?

    Yes. In addition to deals on Sydney to Key West flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Key West.

  • Can I find deals for business class flights from Sydney to Key West?

    Yes. Cheapflights offers flight deals from Sydney to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Key West?

Deals for Sydney to Key West flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Key West?

Cheapflights simply makes it quick and affordable to book flights from Sydney to Key West by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to Key West with no change fees?

Certainly. Search results for flights to Key West from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to Key West become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key West from Sydney today and book when prices fit your budget.

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