$862 Cheap Flights from Sydney (SYD) to Key West (EYW)

View $862 flight on Fri, Oct 17, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Key West Intl. Airport (EYW)

Cheap Flights from Sydney to Key West (SYD-EYW)

Prices were available within the past 7 days and start at $862 for one-way flights and $1,671 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 11 - Tue, Nov 25
SYD
Sydney
EYW
Key West
$1,671 Roundtrip, found 5 days ago
$1,671
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 11 from Sydney to Key West, returning Tue, Nov 25, priced at $1,671 found 5 days ago
Delta
Tue, Nov 11 - Sat, Nov 22
SYD
Sydney
EYW
Key West
$1,717 Roundtrip, found 5 days ago
$1,717
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 11 from Sydney to Key West, returning Sat, Nov 22, priced at $1,717 found 5 days ago
Delta
Sat, Nov 15 - Tue, Nov 25
SYD
Sydney
EYW
Key West
$1,720 Roundtrip, found 5 days ago
$1,720
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 15 from Sydney to Key West, returning Tue, Nov 25, priced at $1,720 found 5 days ago
United
Tue, Nov 11 - Wed, Nov 19
SYD
Sydney
EYW
Key West
$1,731 Roundtrip, found 5 days ago
$1,731
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 11 from Sydney to Key West, returning Wed, Nov 19, priced at $1,731 found 5 days ago
United
Fri, Nov 14 - Sat, Nov 22
SYD
Sydney
EYW
Key West
$1,741 Roundtrip, found 5 days ago
$1,741
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 14 from Sydney to Key West, returning Sat, Nov 22, priced at $1,741 found 5 days ago
United
Wed, Nov 12 - Wed, Nov 19
SYD
Sydney
EYW
Key West
$1,762 Roundtrip, found 5 days ago
$1,762
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 12 from Sydney to Key West, returning Wed, Nov 19, priced at $1,762 found 5 days ago
United
Fri, Nov 14 - Sat, Nov 22
SYD
Sydney
EYW
Key West
$1,765 Roundtrip, found 5 days ago
$1,765
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 14 from Sydney to Key West, returning Sat, Nov 22, priced at $1,765 found 5 days ago
American Airlines
Thu, Nov 13 - Thu, Nov 20
SYD
Sydney
EYW
Key West
$1,922 Roundtrip, found 5 days ago
$1,922
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Nov 13 from Sydney to Key West, returning Thu, Nov 20, priced at $1,922 found 5 days ago
Jetstar
Fri, Nov 14 - Sat, Nov 22
SYD
Sydney
EYW
Key West
$1,979 Roundtrip, found 5 days ago
$1,979
Roundtrip
found 5 days ago
Select Jetstar flight, departing Fri, Nov 14 from Sydney to Key West, returning Sat, Nov 22, priced at $1,979 found 5 days ago
Qantas Airways
Fri, Nov 14 - Sat, Nov 22
SYD
Sydney
EYW
Key West
$2,002 Roundtrip, found 5 days ago
$2,002
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Fri, Nov 14 from Sydney to Key West, returning Sat, Nov 22, priced at $2,002 found 5 days ago

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW) cost?
Grab a cheap one-way flight from $862 or cheap return flight from $1,671 from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW)?
Planning your getaway for November can help you save, as it's the cheapest month for flights between SYD and EYW. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SYD to EYW flight.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW)?
Nonstop flights from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SYD to EYW?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW)?
Opt for a flight from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW) last-minute?
Booking your flight from SYD to EYW just before your journey is usually more expensive. However, if there's some wiggle room with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a SYD to EYW flight and hotel package?
You'll generally save money by securing a SYD to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your ideal flights and accommodations, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Key West Intl. Airport (EYW)?
If you booked your SYD to EYW flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Key West Intl.
Roundtrip price
$1,671
Distance
9215 mi

Book with confidence

Book with confidence

Sydney to Key West Flights

The cheapest times to fly from Sydney to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sydney to Key West are during the month of November. You can find some of the cheapest flights from Sydney to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Key West

Sunday is one of the best days to book for cheap flights from Sydney to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sydney to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sydney to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $862 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sydney to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sydney to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Sydney to Key West Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.