How long is the flight from Sydney to Key Largo?

Air New Zealand, United Airlines, and Delta can get you from Sydney to Key Largo in just under 23h 08m. Your travel time can differ by up to 1h 45m. There are 15012 km between Sydney and Key Largo. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops. 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.

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 American Airlines, Air Canada and Delta. Something to consider prior to booking your flight.

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 7 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.

$950+ 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 $1,709 and $2,653 in October. The cheapest return flight price found within the last 3 days was $1,479 on Multiple Airlines (31 Oct-7 Nov). Find deals

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Key Largo are usually found in March or August, booked 72 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Sydney to Key Largo

Round-trip from	$1,479
One-way from	$950
Popular in	December
Cheapest in	March
Average price	$1,850

31/10-7/11
4 total stops
61h 14m total
Sydney to Key Largo

Search Deals

4/12
3 total stops
34h 23m total
Sydney to Key Largo

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($548 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($122 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Sydney to Key Largo

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 18 September 2025.

Fri 31/1011:20SYD - MIA

2 stops28h 14mMultiple Airlines

Fri 7/1108:00MIA - SYD

2 stops33h 00mMultiple Airlines

Deal found 16/9$1,479

Wed 1/1008:55SYD - MIA

2 stops26h 18mAir New Zealand

Thu 23/1016:56MIA - SYD

2 stops26h 39mAir New Zealand

Deal found 17/9$1,589

Wed 8/1011:50SYD - MIA

2 stops24h 23mAir New Zealand

Wed 11/216:51MIA - SYD

2 stops23h 54mAir New Zealand

Deal found 17/9$1,692

Fri 31/1009:55SYD - MIA

2 stops27h 05mAir New Zealand

Fri 7/1108:45MIA - SYD

2 stops35h 55mAir New Zealand

Deal found 16/9$1,767

Fri 3/1009:30SYD - MIA

2 stops27h 15mUnited Airlines

Sun 19/1018:35MIA - SYD

1 stop22h 20mUnited Airlines

Deal found 16/9$1,776

Fri 28/1107:45SYD - MIA

2 stops28h 07mAir New Zealand

Sat 6/1208:30MIA - SYD

2 stops32h 15mAir New Zealand

Deal found 17/9$1,806

Mon 3/1111:20SYD - MIA

1 stop22h 19mAir Canada

Thu 6/1112:20MIA - SYD

2 stops29h 15mAir Canada

Deal found 15/9$1,817

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 18 September 2025.

Wed 8/1011:50SYD - MIA

2 stops24h 23mAir New Zealand

Wed 11/216:51MIA - SYD

2 stops23h 54mAir New Zealand

Deal found 17/9$1,692

Fri 3/1010:20SYD - MIA

2 stops24h 53mUnited Airlines

Sun 19/1013:15MIA - SYD

2 stops27h 45mUnited Airlines

Deal found 17/9$1,824

Fri 3/1009:25SYD - MIA

2 stops23h 08mDelta

Sun 19/1007:36MIA - SYD

1 stop32h 59mDelta

Deal found 16/9$1,857

Fri 31/1009:40SYD - MIA

2 stops26h 11mDelta

Fri 7/1107:36MIA - SYD

1 stop32h 54mDelta

Deal found 16/9$1,857

Last-minute flights from Sydney to Key Largo
Discover last-minute flight deals from Sydney to Key Largo. Data last updated 18 September 2025 and is based on user searches.

Wed 1/1008:55SYD - MIA

2 stops26h 18mAir New Zealand

Thu 23/1016:56MIA - SYD

2 stops26h 39mAir New Zealand

Deal found 17/9$1,589

Fri 3/1009:30SYD - MIA

2 stops27h 15mUnited Airlines

Sun 19/1018:35MIA - SYD

1 stop22h 20mUnited Airlines

Deal found 16/9$1,776

Wed 8/1011:50SYD - MIA

2 stops24h 23mAir New Zealand

Wed 11/216:51MIA - SYD

2 stops23h 54mAir New Zealand

Deal found 17/9$1,692

Sat 11/1021:40SYD - MIA

2 stops34h 49mAlaska Airlines

Fri 31/1018:46MIA - SYD

2 stops33h 59mAlaska Airlines

Deal found 16/9$1,839

Fri 31/1011:20SYD - MIA

2 stops28h 14mMultiple Airlines

Fri 7/1108:00MIA - SYD

2 stops33h 00mMultiple Airlines

Deal found 16/9$1,479

Fri 31/1009:55SYD - MIA

2 stops27h 05mAir New Zealand

Fri 7/1108:45MIA - SYD

2 stops35h 55mAir New Zealand

Deal found 16/9$1,767

Fri 31/1010:20SYD - MIA

3 stops51h 09mAir Canada

Fri 7/1121:05MIA - SYD

2 stops68h 30mAir Canada

Deal found 16/9$1,850

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 18 September 2025.

Thu 4/1216:00SYD - MIA

3 stops34h 23mMultiple Airlines

Deal found 17/9$950

Sat 1/1111:20SYD - MIA

2 stops40h 08mMultiple Airlines

Deal found 16/9$980

Fri 5/1217:45SYD - MIA

2 stops44h 14mMultiple Airlines

Deal found 17/9$995

Mon 15/1217:45SYD - MIA

2 stops44h 14mMultiple Airlines

Deal found 15/9$1,003

Tue 14/1010:20SYD - MIA

2 stops42h 00mAir Canada

Deal found 17/9$1,004

Tue 3/217:45SYD - MIA

2 stops44h 14mMultiple Airlines

Deal found 17/9$1,007

Tue 2/1206:20SYD - MIA

3 stops51h 14mMultiple Airlines

Deal found 17/9$1,042

Thu 15/117:45SYD - MIA

2 stops27h 29mMultiple Airlines

Deal found 16/9$1,114

Tue 14/1019:25SYD - MIA

3 stops53h 31mMultiple Airlines

Deal found 17/9$1,127

Mon 24/1110:40SYD - MIA

2 stops22h 38mDelta

Deal found 16/9$1,151

Fly from

Fly to

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 8/10

11:50-21:13

2 stops24h 23m

Miami

Wed 11/2

16:51-08:45

2 stops23h 54m

$1,692

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 3/10

10:20-21:13

2 stops24h 53m

Miami

Sun 19/10

13:15-08:00

2 stops27h 45m

$1,824

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 3/10

09:25-18:33

2 stops23h 08m

Miami

Sun 19/10

07:36-07:35

1 stop32h 59m

$1,857

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 31/10

09:40-20:51

2 stops26h 11m

Miami

Fri 7/11

07:36-08:30

1 stop32h 54m

$1,857

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 4/12

16:00-10:23

3 stops34h 23m

$950

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 1/11

11:20-12:28

2 stops40h 08m

$980

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 5/12

17:45-21:59

2 stops44h 14m

$995

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 15/12

17:45-21:59

2 stops44h 14m

$1,003

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 14/10

10:20-13:20

2 stops42h 00m

$1,004

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 2/12

06:20-17:34

3 stops51h 14m

$1,042

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 14 results

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.

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

How far ahead should I book a flight from Sydney to Key Largo?

The price you pay for your flight from Sydney to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Sydney to Key Largo?

Currently, March is the cheapest month in which you can book a flight from Sydney to Key Largo (average of $1,265). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 is the cheapest day to fly from Sydney to Key Largo?

Travellers seeking maximum savings on their Sydney to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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, Delta, andQantas Airways 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

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air New Zealand

8.0

Very Good

505 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Delta

8.0

Very Good

7,961 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Qantas Airways

7.5

Good

907 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

United Airlines

7.4

Good

8,926 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air Canada

7.1

Good

10,000 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

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 7 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?
Air New Zealand, United Airlines, and Delta can get you from Sydney to Key Largo in just under 23h 08m. Your travel time can differ by up to 1h 45m. There are 15012 km between Sydney and Key Largo. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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.
What is the cheapest month to book a flight from Sydney to Key Largo?
Currently, March is the cheapest month in which you can book a flight from Sydney to Key Largo (average of $1,265). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,127). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Sydney to Key Largo

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$1,118	Average$1,179	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest$1,200	Average$2,023	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,424	Average$1,797	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Qantas Airways	Cheapest$1,456	Average$2,509	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Virgin Australia	Cheapest$1,526	Average$2,737	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights
Air New Zealand	Cheapest$1,573	Average$1,922	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
American Airlines	Cheapest$1,662	Average$2,007	FlexibilityNo cancel fee	On-time71%	Search American Airlines 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 $950

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Key Largo are usually found in March or August, booked 72 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap 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 18 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 18 September 2025.

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 18 September 2025.

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 far ahead should I book a flight from Sydney to Key Largo?

Use this chart to determine the optimal time to book a return flight from Sydney to Key Largo. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from Sydney to Key Largo?

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

Find hourly flight availability from Sydney to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

What is the cheapest day to fly from Sydney to Key Largo?

Use this chart to determine the cheapest time to fly return from Sydney to Key Largo. Price data was last updated on 13 October 2024.

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, Delta, andQantas Airways 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?

What is the cheapest month to book a flight 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.

Top 7 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 18 September 2025.