How long is the flight from Sydney to Key Largo?

Delta can get you from Sydney to Key Largo in just under 21h 51m. Your travel time can differ by up to . There are 15012 km between Sydney and Key Largo. Find deals

What are the cheapest airlines to fly from Sydney to Key Largo one-way?

The cheapest airline one-way is Air New Zealand, with whom users have recently found tickets for as low as $798. However, be on the lookout for offers from Air Canada and Qantas Airways, as they are both options that can get you from Sydney to Key Largo for a low price. Find deals

In terms of precipitation, rainfall in Key Largo ranges from 41.0 - 252.0 inches per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Key Largo when rainfall is around 41.0 mm. Find deals

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

What are the most popular airlines that fly from Sydney to Key Largo?

The most popular airlines flying from Sydney to Key Largo are Qantas Airways, Air New Zealand and United Airlines. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from SYD to KE9?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sydney to Key Largo as you normally would.

What airport do you fly from for flights from Sydney to Key Largo?

Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Key Largo. You should not have trouble finding flights to Key Largo from Kingsford Smith; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Sydney airport to Key Largo. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

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

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

How can I find direct flights from Sydney to Key Largo?

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

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

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

$763+ Cheap Flights from Sydney to Key Largo

Q: How much does it cost for a return flight from Sydney to Key Largo?

Airfare is below average for this route at the moment. Sydney to Key Largo flights typically cost between $2,503 and $1,868 in June. The cheapest return flight price found within the last 3 days was $1,759 on Multiple Airlines (5 June-12 June). Find deals

Cheap flight deals from Sydney to Key Largo

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Sydney to Key Largo
Explore the most affordable flight options available from Sydney to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Sat 2/513:15

SYD

MIA

3 stops44h 56m

Multiple Airlines

Sat 9/511:23

MIA

SYD

3 stops34h 27m

Multiple Airlines

Deal found 22/4$1,538

Fri 5/606:00

SYD

MIA

3 stops61h 33m

Multiple Airlines

Fri 12/606:00

MIA

SYD

3 stops39h 50m

Multiple Airlines

Deal found 21/4$1,759

Thu 30/406:00

SYD

MIA

3 stops39h 32m

Multiple Airlines

Wed 13/508:10

MIA

SYD

3 stops37h 40m

Multiple Airlines

Deal found 23/4$1,782

Wed 20/509:10

SYD

MIA

2 stops34h 28m

Multiple Airlines

Wed 27/506:30

MIA

SYD

2 stops34h 35m

Multiple Airlines

Deal found 22/4$1,785

Sun 7/606:00

SYD

MIA

3 stops61h 33m

Multiple Airlines

Sun 14/611:19

MIA

SYD

3 stops44h 51m

Multiple Airlines

Deal found 23/4$1,789

Tue 19/509:10

SYD

MIA

2 stops34h 28m

Multiple Airlines

Tue 26/506:30

MIA

SYD

2 stops34h 35m

Multiple Airlines

Deal found 21/4$1,814

Thu 4/613:15

SYD

MIA

3 stops30h 18m

Multiple Airlines

Thu 11/611:19

MIA

SYD

3 stops34h 31m

Multiple Airlines

Deal found 19/4$1,817

Wed 14/1015:50

SYD

MIA

1 stop39h 50m

Multiple Airlines

Wed 21/1023:30

MIA

SYD

1 stop40h 40m

Multiple Airlines

Deal found 21/4$1,838

Wed 27/517:50

SYD

MIA

2 stops27h 10m

Multiple Airlines

Mon 8/608:10

MIA

SYD

2 stops33h 20m

Multiple Airlines

Deal found 20/4$1,886

Thu 30/409:30

SYD

MIA

2 stops26h 39m

United Airlines

Wed 13/510:50

MIA

SYD

2 stops30h 10m

United Airlines

Deal found 24/4$1,888

Find flight deals from Sydney to Key Largo

Round-trip from	$1,538
One-way from	$763
Popular in	January
Cheapest in	February
Average price	$2,519

2/5-9/5
6 total stops
79h 23m total
Sydney to Key Largo

Search Deals

12/8
3 total stops
56h 15m total
Sydney to Key Largo

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($375 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($109 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 10/5

09:15-17:06

1 stop21h 51m

Miami

Sun 17/5

06:00-06:50

2 stops34h 50m

$1,965

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 19/5

09:15-17:06

1 stop21h 51m

Miami

Tue 26/5

08:05-06:50

2 stops32h 45m

$2,007

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 18/5

09:15-06:55

1 stop35h 40m

Miami

Mon 25/5

08:10-06:50

1 stop32h 40m

$2,009

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 22/5

09:15-19:58

2 stops24h 43m

Miami

Fri 29/5

12:40-06:50

2 stops28h 10m

$2,040

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 5/6

09:15-06:55

1 stop35h 40m

Miami

Fri 12/6

19:00-06:50

1 stop21h 50m

$2,129

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 10/5

09:30-22:33

2 stops27h 03m

Miami

Sun 17/5

10:50-06:55

3 stops30h 05m

$2,171

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 12/8

09:15-20:59

2 stops25h 44m

Miami

Mon 21/12

19:30-06:50

2 stops43h 20m

$2,220

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 9/5

20:45-18:35

1 stop35h 50m

Miami

Wed 13/5

20:55-17:30

1 stop30h 35m

$2,300

Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 11/8

09:15-17:48

1 stop22h 33m

Miami

Thu 24/12

18:30-08:30

1 stop22h 00m

$2,302

Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 25/5

20:45-18:10

1 stop35h 25m

$1,130

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 19 resultsSorted by cheapest first

Best time to book a flight from Sydney to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Sydney with our price prediction graph.

SYD-MIA

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.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Key Largo

SYD-KE9

SYD-MIA

How much does it cost for a return flight from Sydney to Key Largo?

Reviews of airlines servicing Key Largo

Read reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Sydney to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Air New Zealand

8.0

Very Good

632 reviews

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Qantas Airways

7.5

Good

1,027 reviews

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

United Airlines

7.4

Good

9,649 reviews

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

American Airlines

7.1

Good

11,670 reviews

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Air Canada

7.1

Good

10,965 reviews

Air New Zealand

8.0

Very Good

632 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Related info for your journey

What airport do you fly from for flights from Sydney to Key Largo?
Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Key Largo. You should not have trouble finding flights to Key Largo from Kingsford Smith; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Sydney airport to Key Largo. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.
How long is the flight from Sydney to Key Largo?
Delta can get you from Sydney to Key Largo in just under 21h 51m. Your travel time can differ by up to . There are 15012 km between Sydney and Key Largo.
What are the cheapest airlines to fly from Sydney to Key Largo one-way?
The cheapest airline one-way is Air New Zealand, with whom users have recently found tickets for as low as $798. However, be on the lookout for offers from Air Canada and Qantas Airways, as they are both options that can get you from Sydney to Key Largo for a low price.
Can I find deals for flights from Sydney to Key Largo that include hotel bookings?
Yes. In addition to deals on Sydney to Key Largo flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to Key Largo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Key Largo.
Can I find deals for business class flights from Sydney to Key Largo?
Yes. Cheapflights offers flight deals from Sydney to Key Largo 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Sydney to Key Largo

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$1,004	Average$1,670	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Air New Zealand	Cheapest$1,066	Average$1,634	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
United Airlines	Cheapest$1,121	Average$1,754	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Qantas Airways	Cheapest$1,528	Average$2,168	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
American Airlines	Cheapest$1,553	Average$1,810	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	Cheapest$1,795	Average$2,416	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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

Cheapflights helps you search for flights from Sydney to Key Largo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sydney to Key Largo.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Key Largo flexibly with Cheapflights today.

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

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

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Cheap flights from Sydney to Key Largo from $763

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Sydney to Key Largo

Cheapest flights from Sydney to Key LargoExplore the most affordable flight options available from Sydney to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Explore the most affordable flight options available from Sydney to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Best flights from Sydney to Key LargoDiscover carefully curated flight deals from Sydney to Key Largo that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Discover carefully curated flight deals from Sydney to Key Largo that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Last-minute flights from Sydney to Key LargoDiscover last-minute flight deals from Sydney to Key Largo. Data last updated 25 April 2026 and is based on user searches.

Discover last-minute flight deals from Sydney to Key Largo. Data last updated 25 April 2026 and is based on user searches.

One-way flights from Sydney to Key LargoSearch for one-way flight options from Sydney to Key Largo. Find affordable one-way fares based on user searches. Data last updated 25 April 2026.

Search for one-way flight options from Sydney to Key Largo. Find affordable one-way fares based on user searches. Data last updated 25 April 2026.

Find flight deals from Sydney to Key Largo

Keep the following information in mind while searching for Sydney to Key Largo flight deals. Data was last updated 25 April 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to Key Largo that are best for you.

Best time to book a flight from Sydney to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Sydney with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Key Largo

How much does it cost for a return flight from Sydney to Key Largo?

Reviews of airlines servicing Key Largo

Read reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Sydney to Key Largo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from Sydney to Key Largo?

How long is the flight from Sydney to Key Largo?

What are the cheapest airlines to fly from Sydney to Key Largo one-way?

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

How can I find direct flights from Sydney to Key Largo?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Key Largo by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Sydney to Key Largo by cabin class

Find flights from Sydney to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Sydney and Key Largo flights

Browse other Sydney and Key Largo flight options. Last updated on 25 April 2026.

Other flights from Sydney

Browse through other flights departing from Sydney. Flights are based on user searches made on Cheapflights and were last updated on 25 April 2026.

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Sydney to Key Largo flights

Consider these flights travelling from Sydney to Key Largo.

Top 6 airlines flying from Sydney to Key Largo

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

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

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

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

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Cheapest flights from Sydney to Key Largo
Explore the most affordable flight options available from Sydney to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Best flights from Sydney to Key Largo
Discover carefully curated flight deals from Sydney to Key Largo that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 April 2026.

Last-minute flights from Sydney to Key Largo
Discover last-minute flight deals from Sydney to Key Largo. Data last updated 25 April 2026 and is based on user searches.

One-way flights from Sydney to Key Largo
Search for one-way flight options from Sydney to Key Largo. Find affordable one-way fares based on user searches. Data last updated 25 April 2026.