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Cheap flights from Sydney to Key Largo from $1,032

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Key Largo are usually found in March or February, booked 13 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 13 June 2025.

Round-trip from

$1,735

One-way from

$1,075

Popular in

December

Cheapest in

March

Average price

$2,267
27/7-11/8
  • 27/7-11/8
  • 4 total stops
  • 68h 08m total
  • Sydney to Key Largo
Search Deals
11/7
  • 11/7
  • 2 total stops
  • 40h 19m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($445 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Sun 27/709:30SYD - MIA
2 stops34h 08mMultiple Airlines
Mon 11/807:00MIA - SYD
2 stops34h 00mMultiple Airlines
Deal found 12/6$1,735
Mon 14/709:25SYD - MIA
1 stop21h 59mDelta
Sun 27/707:48MIA - SYD
1 stop32h 47mDelta
Deal found 12/6$1,778
Fri 15/809:10SYD - MIA
1 stop34h 29mAmerican Airlines
Sat 30/821:35MIA - SYD
1 stop43h 20mAmerican Airlines
Deal found 12/6$1,822
Fri 25/721:40SYD - MIA
2 stops33h 40mAlaska Airlines
Fri 1/818:20MIA - SYD
2 stops35h 25mAlaska Airlines
Deal found 9/6$1,848
Wed 17/909:20SYD - MIA
2 stops42h 00mAir Canada
Sun 19/1014:20MIA - SYD
3 stops51h 00mAir Canada
Deal found 12/6$1,873
Mon 25/808:55SYD - MIA
2 stops67h 39mJapan Airlines
Sun 7/907:00MIA - SYD
2 stops33h 20mJapan Airlines
Deal found 11/6$1,971
Sat 11/1010:10SYD - MIA
1 stop20h 50mQantas Airways
Thu 23/1019:36MIA - SYD
1 stop21h 29mQantas Airways
Deal found 10/6$1,994
Sun 21/920:55SYD - MIA
2 stops37h 25mTurkish Airlines
Sun 28/922:15MIA - SYD
2 stops54h 45mTurkish Airlines
Deal found 10/6$2,254
Sat 11/1015:50SYD - MIA
1 stop40h 00mQatar Airways
Thu 23/1019:40MIA - SYD
1 stop31h 30mQatar Airways
Deal found 10/6$2,657
Thu 25/1211:20SYD - MIA
2 stops25h 01mUnited Airlines
Sun 11/113:25MIA - SYD
2 stops25h 35mUnited Airlines
Deal found 12/6$2,906
Sun 27/712:10SYD - MIA
2 stops32h 21mLATAM Airlines
Sun 10/801:45MIA - SYD
3 stops41h 50mLATAM Airlines
Deal found 12/6$3,090
Wed 17/1221:45SYD - MIA
2 stops36h 02mANA
Thu 8/107:00MIA - SYD
2 stops35h 30mANA
Deal found 11/6$3,101

Cheapflights Fare Finder

Customise your flight search to find flights from Sydney to Key Largo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from Sydney to Key Largo that are best for you.

Fly from

Sydney

Fly to

Key Largo

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 27/7

09:30-05:38

2 stops34h 08m

Miami

Mon 11/8

07:00-07:00

2 stops34h 00m

$1,735

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 14/7

09:25-17:24

1 stop21h 59m

Miami

Sun 27/7

07:48-06:35

1 stop32h 47m

$1,778

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 15/8

09:10-05:39

1 stop34h 29m

Miami

Sat 30/8

21:35-06:55

1 stop43h 20m

$1,822

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 25/7

21:40-17:20

2 stops33h 40m

Miami

Fri 1/8

18:20-19:45

2 stops35h 25m

$1,848

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 17/9

09:20-13:20

2 stops42h 00m

Miami

Sun 19/10

14:20-08:20

3 stops51h 00m

$1,873

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 25/8

08:55-14:34

2 stops67h 39m

Miami

Sun 7/9

07:00-06:20

2 stops33h 20m

$1,971

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 11/10

10:10-16:00

1 stop20h 50m

Miami

Thu 23/10

19:36-08:05

1 stop21h 29m

$1,994

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 21/9

20:55-20:20

2 stops37h 25m

Miami

Sun 28/9

22:15-19:00

2 stops54h 45m

$2,254

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 11/10

15:50-16:50

1 stop40h 00m

Miami

Thu 23/10

19:40-18:10

1 stop31h 30m

$2,657

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 9/12

14:00-23:51

2 stops25h 51m

Miami

Mon 5/1

11:20-07:00

2 stops27h 40m

$2,909

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 28 results
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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?

Use this chart to determine the optimal time to book a return flight from Sydney to Key Largo. Price data was last updated on 9 June 2025.

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 13 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 $1,295). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,107). 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?

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 13 June 2025.

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?

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.

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.

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

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.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key Largo. Reviews last updated 13 June 2025.
Read through reviews of airlines operating flights from Sydney to Key Largo, such as Air Tahiti Nui, Japan Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very Good
1,490 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very Good
7,946 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air New Zealand
8.0
Very Good
483 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Alaska Airlines
8.0
Very Good
10,000 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Overall

8.7

Entertainment

7.3

Comfort

8.1

Food

7.8

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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?

    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.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $1,191. However, be on the lookout for offers from Qantas Airways and Cathay Pacific, 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.

  • 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 $1,295). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,107). 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

Discover the top 7 airlines that operate flights from Sydney to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$508Average$2,031FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$1,145Average$1,518FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,229Average$2,271FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,241Average$1,813FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,491Average$2,423FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,672Average$2,117FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,815Average$2,786FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights

Fly with Cheapflights

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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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