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$530+ Cheap flights from Key Largo, FL to Sydney (SYD)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SYD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Sydney Kingsford Smith are usually found in February or May, booked 10 days in advance, depart on a Sunday or Tuesday and return on a Friday

Cheap flight deals from Key Largo to Sydney

Keep the following information in mind while searching for Key Largo to Sydney flight deals. Data was last updated June 12, 2025.

Round-trip from

$1,228
(oojo)

One-way from

$530
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,333
From Key Largo to Sydney Kingsford Smith
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One-way flight from Key Largo to Sydney Kingsford Smith
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Highest demand for flights based on searches. 19% potential increase in price ($338 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($77 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to Sydney

Cheapest flights from Key Largo to Sydney
Explore the most affordable flight options available from Key Largo to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:00 pmMIA - SYD
2 stops26h 30mFiji Airways
Sat 11/82:30 pmSYD - MIA
2 stops22h 51mFiji Airways
Deal found 6/11$1,202
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:35 pmMIA - SYD
2 stops36h 45mMultiple Airlines
Tue 9/169:00 amSYD - MIA
2 stops26h 53mMultiple Airlines
Deal found 6/11$1,228
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:00 amMIA - SYD
2 stops31h 45mAir New Zealand
Sun 12/1411:45 amSYD - MIA
2 stops26h 05mAir New Zealand
Deal found 6/11$1,302
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:31 pmMIA - SYD
2 stops59h 14mAlaska Airlines
Fri 10/179:40 pmSYD - MIA
2 stops34h 46mAlaska Airlines
Deal found 6/11$1,474
This lol.travel deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/29:40 pmMIA - SYD
2 stops43h 40mAir Canada
Fri 8/159:20 amSYD - MIA
1 stop22h 00mAir Canada
Deal found 6/11$1,478
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:15 pmMIA - SYD
2 stops54h 45mTurkish Airlines
Thu 7/178:55 pmSYD - MIA
2 stops37h 25mTurkish Airlines
Deal found 6/10$1,540
This Gurufare deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:46 pmMIA - SYD
1 stop27h 14mQantas Airways
Wed 12/2411:15 amSYD - MIA
1 stop25h 45mQantas Airways
Deal found 6/12$1,688

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Sydney 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Key Largo to Sydney that are best for you.

Fly from

Key Largo

Fly to

Sydney

Route

Depart

Return

Price

MiamiSydney

MIA - SYD

MIASYD

Miami

Sat 11/1

7:00 pm-12:30 pm

2 stops26h 30m

Sydney Kingsford Smith

Sat 11/8

2:30 pm-9:21 pm

2 stops22h 51m

$1,202

MiamiSydney

MIA - SYD

MIASYD

Miami

Wed 9/3

4:35 pm-7:20 pm

2 stops36h 45m

Sydney Kingsford Smith

Tue 9/16

9:00 am-9:53 pm

2 stops26h 53m

$1,228

MiamiSydney

MIA - SYD

MIASYD

Miami

Wed 11/26

9:00 am-8:45 am

2 stops31h 45m

Sydney Kingsford Smith

Sun 12/14

11:45 am-9:50 pm

2 stops26h 05m

$1,302

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 9/30

6:31 pm-7:45 pm

2 stops59h 14m

Sydney Kingsford Smith

Fri 10/17

9:40 pm-5:26 pm

2 stops34h 46m

$1,474

MiamiSydney

MIA - SYD

MIASYD

Miami

Sat 8/2

9:40 pm-7:20 am

2 stops43h 40m

Sydney Kingsford Smith

Fri 8/15

9:20 am-5:20 pm

1 stop22h 00m

$1,478

MiamiSydney

MIA - SYD

MIASYD

Miami

Thu 7/10

10:15 pm-7:00 pm

2 stops54h 45m

Sydney Kingsford Smith

Thu 7/17

8:55 pm-8:20 pm

2 stops37h 25m

$1,540

MiamiSydney

MIA - SYD

MIASYD

Miami

Wed 11/26

1:46 pm-9:00 am

1 stop27h 14m

Sydney Kingsford Smith

Wed 12/24

11:15 am-9:00 pm

1 stop25h 45m

$1,688

MiamiSydney

MIA - SYD

MIASYD

Miami

Fri 8/15

6:00 am-7:30 am

2 stops35h 30m

$530

MiamiSydney

MIA - SYD

MIASYD

Miami

Thu 8/7

7:40 pm-12:15 pm

2 stops26h 35m

$828

MiamiSydney

MIA - SYD

MIASYD

Miami

Thu 8/7

10:04 am-7:05 am

1 stop31h 01m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 13 results
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Best time to book a flight from Key Largo to Sydney

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

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

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

The best time to book flights from Key Largo to Sydney is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Key Largo to Sydney (average of $1,041). Flying from Key Largo to Sydney in December is currently the most expensive (average of $1,635). 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 KE9 to SYD?

Find hourly flight availability from Key Largo to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Key Largo to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Sydney. Price data was last updated on June 30, 2024.

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

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

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

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Key Largo to Sydney, such as Fiji Airways, Alaska Airlines and Air New Zealand. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Fiji Airways
8.1
Very good
194 reviews
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Alaska Airlines
8.0
Very good
10,000 reviews
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Air New Zealand
8.0
Very good
483 reviews
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
LATAM Airlines
7.5
Good
1,785 reviews
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!
Qantas Airways
7.5
Good
854 reviews
Fiji Airways
8.1
Very good
194 reviews

Food

7.5

Entertainment

7.5

Boarding

8.2

Overall

8.1

Comfort

8.1

Crew

8.5

Reviews

1 / 15
6.0
Good

Anonymous,Dec 2024

NAN - LAX

Asked for water before dinner was served, didn’t get it. Dinner served but no drinks was asked or served with dinner. When asked if I wanted my seat made for bedtime, asked for water again. This time I got it. Filled the breakfast form but was still asked what I wanted. Comparing this experience with Fiji air flight from LA to Melbourne. Worse was missing my flight connection to Baltimore since Fiji air opted to wait for a passenger that couldn’t pass security. Instead of leaving at 9:40 pm, we left at 11. So spent overnight at a hotel for next day’s flight. Another expense!

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Sydney. 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 into for flights to Sydney from Key Largo?

    If you book a flight to Sydney from Key Largo, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney. There are 0 flights from Key Largo to Kingsford Smith per day from 7 different airlines.

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

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $828. However, be on the lookout for offers from Qantas Airways and Qatar Airways, as they are both options that can get you from Key Largo to Sydney for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Sydney 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 Key Largo to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Key Largo to Sydney (average of $1,041). Flying from Key Largo to Sydney in December is currently the most expensive (average of $1,635). 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

Traveling to a place near Key Largo?

Book flights to Key Largo if you plan to visit one of these locations
Wollongong
Parramatta
Manly
Coogee

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Top 7 airlines flying from Key Largo to Sydney

Discover the top 7 airlines that operate flights from Key Largo to Sydney. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$413Average$1,203FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$850Average$1,386FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$864Average$1,229FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$899Average$1,652FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$946Average$1,045FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,081Average$1,717FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,295Average$1,815FlexibilityNo cancel feeOn-time74%

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