How long is the flight from Sydney to Key Largo?

United Airlines can get you from Sydney to Key Largo in just under 27h 04m. Your travel time can differ by up to . There are 15012 km between Sydney and Key Largo.

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.

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 American 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.

$894+ 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 $1,805 and $2,829 in August. The cheapest return flight price found within the last 3 days was $1,239 on American Airlines (2 Aug-4 Aug).

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 June 2026.

Sun 2/812:00

SYD

MIA

2 stops34h 51m

American Airlines

Tue 4/807:07

MIA

SYD

1 stop33h 58m

American Airlines

Deal found 27/6$1,239

Tue 11/806:15

SYD

MIA

3 stops45h 38m

Multiple Airlines

Tue 18/806:50

MIA

SYD

3 stops49h 35m

Multiple Airlines

Deal found 26/6$1,332

Sun 9/813:15

SYD

MIA

3 stops30h 36m

Multiple Airlines

Sun 16/806:50

MIA

SYD

3 stops39h 00m

Multiple Airlines

Deal found 25/6$1,383

Mon 10/810:20

SYD

MIA

2 stops24h 13m

United Airlines

Wed 19/812:17

MIA

SYD

2 stops28h 38m

United Airlines

Deal found 29/6$1,448

Mon 10/809:30

SYD

MIA

2 stops26h 57m

United Airlines

Tue 18/812:17

MIA

SYD

2 stops28h 38m

United Airlines

Deal found 25/6$1,450

Mon 17/809:30

SYD

MIA

2 stops23h 56m

United Airlines

Mon 31/817:01

MIA

SYD

2 stops23h 59m

United Airlines

Deal found 26/6$1,451

Thu 16/709:30

SYD

MIA

2 stops25h 03m

United Airlines

Wed 29/712:29

MIA

SYD

2 stops28h 31m

United Airlines

Deal found 29/6$1,452

Mon 27/709:20

SYD

MIA

2 stops40h 48m

Air Canada

Mon 10/808:15

MIA

SYD

3 stops33h 05m

Air Canada

Deal found 28/6$1,460

Thu 6/809:30

SYD

MIA

2 stops25h 03m

United Airlines

Wed 19/816:58

MIA

SYD

1 stop23h 57m

United Airlines

Deal found 26/6$1,468

Thu 16/710:20

SYD

MIA

1 stop21h 09m

Lufthansa

Wed 29/708:00

MIA

SYD

1 stop32h 55m

Lufthansa

Deal found 29/6$1,470

Thu 16/709:20

SYD

MIA

2 stops26h 51m

Air Canada

Wed 29/708:15

MIA

SYD

3 stops33h 05m

Air Canada

Deal found 29/6$1,503

Find flight deals from Sydney to Key Largo

Round-trip from	$1,239
One-way from	$894
Popular in	January
Cheapest in	February
Average price	$2,110

American Airlines
2/8-4/8
3 total stops
68h 49m total
Sydney to Key Largo

Search Deals

United Airlines
3/8
1 total stop
35h 19m total
Sydney to Key Largo

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($379 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 June 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 13/8

09:30-22:34

3 stops27h 04m

Miami

Fri 4/9

15:57-07:00

3 stops73h 03m

$1,448

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 3/8

09:30-21:59

2 stops26h 29m

Miami

Mon 10/8

12:30-07:00

2 stops28h 30m

$1,448

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

10:20-07:39

1 stop35h 19m

Miami

Mon 17/8

16:58-06:55

1 stop23h 57m

$1,448

Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 17/8

09:30-19:26

2 stops23h 56m

Miami

Mon 31/8

17:01-07:00

2 stops23h 59m

$1,451

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 16/7

10:20-17:29

1 stop21h 09m

Miami

Wed 29/7

12:29-06:55

2 stops28h 26m

$1,451

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 6/8

09:30-20:33

2 stops25h 03m

Miami

Wed 19/8

16:58-06:55

1 stop23h 57m

$1,452

Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 16/7

10:20-07:39

1 stop35h 19m

$894

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 29/7

09:30-11:12

2 stops39h 42m

$894

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 5/8

09:30-14:38

3 stops43h 08m

$894

Fastest single journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 17/8

10:20-19:26

1 stop23h 06m

$895

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 11 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

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

Air New Zealand

8.0

Very Good

649 reviews

Air New Zealand

8.0

Very Good

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

Qantas Airways

7.5

Good

1,054 reviews

Air New Zealand

8.0

Very Good

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

United Airlines

7.4

Good

9,905 reviews

Air New Zealand

8.0

Very Good

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

American Airlines

7.1

Good

11,764 reviews

Air New Zealand

8.0

Very Good

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

Air Canada

7.1

Good

11,277 reviews

Air New Zealand

8.0

Very Good

649 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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 04m. Your travel time can differ by up to . There are 15012 km between Sydney and Key Largo.
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$1,040	Average$1,583	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,150	Average$1,802	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air New Zealand	Cheapest$1,475	Average$1,692	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Qantas Airways	Cheapest$1,543	Average$2,032	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
American Airlines	Cheapest$1,608	Average$2,092	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	Cheapest$1,817	Average$2,168	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 $894

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 16/7. 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 June 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 June 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 June 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 June 2026.

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

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

Round-trip from

One-way from

Popular in

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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?

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 June 2026.

Other flights from Sydney

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Popular flight searches

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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 June 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 June 2026.

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