How long is the flight from Sydney to Key Largo?

United Airlines can get you from Sydney to Key Largo in just under 27h 10m. 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 $796. 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.

$1,025+ 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 $2,259 and $1,750 in May. The cheapest return flight price found within the last 3 days was $1,841 on Delta (12 May-7 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 30 April 2026.

Wed 4/1121:40

SYD

MIA

1 stop34h 45m

JetBlue

Mon 30/1119:15

MIA

SYD

1 stop31h 35m

JetBlue

Deal found 30/4$1,840

Tue 12/509:15

SYD

MIA

1 stop21h 51m

Delta

Sun 7/619:00

MIA

SYD

1 stop21h 50m

Delta

Deal found 30/4$1,841

Mon 26/1021:40

SYD

MIA

1 stop34h 45m

Multiple Airlines

Wed 18/1123:20

MIA

SYD

1 stop39h 30m

Multiple Airlines

Deal found 27/4$1,863

Tue 9/609:30

SYD

MIA

2 stops27h 10m

United Airlines

Tue 16/612:29

MIA

SYD

2 stops28h 26m

United Airlines

Deal found 29/4$1,889

Tue 5/509:30

SYD

MIA

2 stops22h 48m

United Airlines

Sun 17/512:50

MIA

SYD

2 stops28h 10m

United Airlines

Deal found 27/4$1,890

Mon 11/509:15

SYD

MIA

1 stop21h 51m

Delta

Tue 26/511:58

MIA

SYD

2 stops28h 52m

Delta

Deal found 26/4$1,893

Wed 27/509:15

SYD

MIA

1 stop21h 51m

Delta

Wed 3/606:00

MIA

SYD

2 stops34h 50m

Delta

Deal found 29/4$1,897

Mon 4/509:30

SYD

MIA

2 stops22h 48m

United Airlines

Sun 10/518:10

MIA

SYD

2 stops46h 45m

United Airlines

Deal found 27/4$1,898

Thu 30/409:30

SYD

MIA

2 stops26h 39m

United Airlines

Wed 13/516:52

MIA

SYD

2 stops24h 08m

United Airlines

Deal found 29/4$1,917

Tue 2/609:15

SYD

MIA

2 stops24h 43m

Delta

Thu 11/610:40

MIA

SYD

2 stops30h 10m

Delta

Deal found 29/4$1,958

Find flight deals from Sydney to Key Largo

Round-trip from	$1,841
One-way from	$1,025
Popular in	January
Cheapest in	February
Average price	$2,512

Delta
12/5-7/6
2 total stops
43h 41m total
Sydney to Key Largo

Search Deals

11/6
2 total stops
27h 48m total
Sydney to Key Largo

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($368 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($108 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

Tue 9/6

09:30-22:40

2 stops27h 10m

Miami

Tue 16/6

12:29-06:55

2 stops28h 26m

$1,889

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 25/5

09:15-17:06

1 stop21h 51m

Miami

Mon 1/6

08:10-06:50

1 stop32h 40m

$1,890

Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 10/6

10:20-22:40

3 stops26h 20m

Miami

Wed 17/6

16:53-07:00

2 stops24h 07m

$1,890

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 25/5

10:20-17:29

1 stop21h 09m

Miami

Mon 1/6

08:00-06:55

1 stop32h 55m

$1,890

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 11/5

09:15-17:06

1 stop21h 51m

Miami

Tue 26/5

10:35-06:50

2 stops30h 15m

$1,894

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 27/5

09:15-18:34

2 stops23h 19m

Miami

Wed 3/6

08:05-06:50

2 stops32h 45m

$1,897

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 2/6

09:15-19:58

2 stops24h 43m

Miami

Thu 11/6

10:40-06:50

2 stops30h 10m

$1,958

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 9/9

09:15-20:59

2 stops25h 44m

Miami

Wed 14/10

10:20-07:50

2 stops30h 30m

$2,058

Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 8/5

20:45-18:10

1 stop35h 25m

$1,101

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

09:30-14:52

3 stops43h 22m

$1,168

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 15 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

638 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

638 reviews

Air New Zealand

8.0

Very Good

638 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

1,028 reviews

Air New Zealand

8.0

Very Good

638 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

9,677 reviews

Air New Zealand

8.0

Very Good

638 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

11,684 reviews

Air New Zealand

8.0

Very Good

638 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

10,983 reviews

Air New Zealand

8.0

Very Good

638 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?
United Airlines can get you from Sydney to Key Largo in just under 27h 10m. 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 $796. 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$1,001	Average$1,666	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Air New Zealand	Cheapest$1,063	Average$1,628	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
United Airlines	Cheapest$1,118	Average$1,740	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Qantas Airways	Cheapest$1,524	Average$2,030	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
American Airlines	Cheapest$1,548	Average$1,805	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	Cheapest$1,790	Average$2,409	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Fly with Cheapflights

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 $1,025

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 11/6. 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 30 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 30 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 30 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 30 April 2026.

Last-minute flights from Sydney to Key LargoDiscover last-minute flight deals from Sydney to Key Largo. Data last updated 30 April 2026 and is based on user searches.

Discover last-minute flight deals from Sydney to Key Largo. Data last updated 30 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 30 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 30 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 30 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

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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 30 April 2026.

Other flights from Sydney

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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 30 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 30 April 2026.

Last-minute flights from Sydney to Key Largo
Discover last-minute flight deals from Sydney to Key Largo. Data last updated 30 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 30 April 2026.