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$576+ Cheap flights from Key Largo, FL to Australia

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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SYD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Key Largo to Australia

Keep the following information in mind while searching for Key Largo to Australia flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$885
(Trip.com)

One-way from

$576
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,359
Provider with most accurate pricing for Miami-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Miami-Sydney Kingsford Smith flights.
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From Key Largo to Australia
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One-way flight from Key Largo to Australia
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Highest demand for flights based on searches. 19% potential increase in price ($365 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($79 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Key Largo to Australia

Cheapest flights from Key Largo to Australia
Explore the most affordable flight options available from Key Largo to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Trip.com deal was found by Cheapflights users on 4/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:03 pmMIA - MEL
2 stops33h 12mMultiple Airlines
Sat 6/71:40 pmMEL - MIA
2 stops34h 12mMultiple Airlines
Deal found 4/16$885
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:00 pmMIA - SYD
2 stops33h 45mMultiple Airlines
Tue 5/271:15 pmSYD - MIA
2 stops23h 01mMultiple Airlines
Deal found 4/17$981
This StudentUniverse deal was found by Cheapflights users on 4/17. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/234:53 pmMIA - SYD
2 stops27h 42mAir New Zealand
Tue 8/511:50 amSYD - MIA
2 stops24h 49mAir New Zealand
Deal found 4/17$1,185
This oojo deal was found by Cheapflights users on 4/16. 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.
Tue 6/37:10 pmMIA - SYD
2 stops26h 35mFiji Airways
Tue 6/101:15 pmSYD - MIA
2 stops23h 44mFiji Airways
Deal found 4/16$1,221
This FlightHub deal was found by Cheapflights users on 4/16. 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 4/177:04 pmMIA - ADL
2 stops27h 01mFiji Airways
Thu 4/2412:35 pmADL - MIA
2 stops22h 34mFiji Airways
Deal found 4/16$1,304
This Fiji Airways deal was found by Cheapflights users on 4/16. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/126:55 pmMIA - BNE
2 stops25h 30mMultiple Airlines
Tue 11/1111:35 amBNE - MIA
2 stops25h 43mMultiple Airlines
Deal found 4/16$1,306
This Gurufare deal was found by Cheapflights users on 4/16. 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.
Sun 7/67:00 amMIA - MEL
2 stops44h 45mAir New Zealand
Sun 7/278:35 amMEL - MIA
2 stops37h 02mAir New Zealand
Deal found 4/16$1,329
This StudentUniverse deal was found by Cheapflights users on 4/17. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:41 pmMIA - BNE
2 stops26h 14mAir New Zealand
Sun 11/168:20 amBNE - MIA
2 stops28h 30mAir New Zealand
Deal found 4/17$1,435
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 8/146:20 pmMIA - SYD
2 stops35h 25mAlaska Airlines
Tue 8/199:40 pmSYD - MIA
2 stops33h 26mAlaska Airlines
Deal found 4/17$1,463
This oojo deal was found by Cheapflights users on 4/16. 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.
Fri 8/294:00 pmMIA - BNE
2 stops28h 35mFiji Airways
Sat 9/1311:35 amBNE - MIA
2 stops25h 34mFiji Airways
Deal found 4/16$1,479
This StudentUniverse deal was found by Cheapflights users on 4/17. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:45 amMIA - CBR
3 stops37h 55mAir New Zealand
Fri 10/36:05 amCBR - MIA
3 stops29h 07mAir New Zealand
Deal found 4/17$1,496
This Fiji Airways deal was found by Cheapflights users on 4/16. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:30 pmMIA - ADL
2 stops48h 35mMultiple Airlines
Sat 11/11:15 pmADL - MIA
2 stops25h 49mMultiple Airlines
Deal found 4/16$1,508

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Australia 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 April 17, 2025.
Use the filters below to find and compare flights from Key Largo to Australia that are best for you.

Fly from

Key Largo

Fly to

Australia

Route

Depart

Return

Price

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

Sat 5/31

1:03 pm-12:15 pm

2 stops33h 12m

Melbourne

Sat 6/7

1:40 pm-9:52 am

2 stops34h 12m

$885

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 5/13

12:00 pm-11:45 am

2 stops33h 45m

Sydney Kingsford Smith

Tue 5/27

1:15 pm-10:16 pm

2 stops23h 01m

$981

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 6/3

7:10 pm-11:45 am

2 stops26h 35m

Sydney Kingsford Smith

Tue 6/10

1:15 pm-10:59 pm

2 stops23h 44m

$1,221

MiamiSydney

MIA - SYD

MIASYD

Miami

Thu 7/3

4:53 pm-8:45 am

2 stops25h 52m

Sydney Kingsford Smith

Tue 7/15

9:55 am-10:39 pm

2 stops26h 44m

$1,298

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

Sun 7/6

7:00 am-5:45 pm

2 stops44h 45m

Melbourne

Sun 7/27

8:35 am-7:37 am

2 stops37h 02m

$1,329

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Fri 5/9

3:15 pm-10:35 am

3 stops29h 20m

Brisbane

Tue 5/20

11:40 am-5:43 am

3 stops32h 03m

$1,446

MiamiSydney

MIA - SYD

MIASYD

Miami

Fri 5/9

6:01 pm-7:45 pm

2 stops35h 44m

Sydney Kingsford Smith

Tue 7/15

9:40 pm-5:20 pm

2 stops33h 40m

$1,529

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 7/8

10:35 am-7:00 pm

2 stops42h 25m

Sydney Kingsford Smith

Sun 7/20

8:55 pm-8:20 pm

2 stops37h 25m

$1,539

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Fri 5/9

5:10 pm-10:35 am

2 stops27h 25m

Brisbane

Tue 5/20

11:40 am-10:46 pm

2 stops25h 06m

$1,550

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Tue 7/15

4:53 pm-11:00 am

2 stops28h 07m

Brisbane

Wed 10/15

9:00 am-9:12 pm

2 stops26h 12m

$1,655

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 51 results
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Best time to book a flight from Key Largo to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, February is the cheapest month in which you can book a flight from Key Largo to Australia (average of $1,046). Flying from Key Largo to Australia in December is currently the most expensive (average of $1,643). 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 AU?

Find hourly flight availability from Key Largo to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

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

Rainfall in Australia by month

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

In terms of precipitation, rainfall in Australia 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 Australia when rainfall is around 2.0 in.

Temperature in Australia by month

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

If weather is an important factor for your trip to Australia, 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 Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated April 17, 2025.
To help decide which airline to fly from Key Largo to Australia, see what other customers have to say about Air Tahiti Nui, Fiji Airways and Emirates. 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 Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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.
Fiji Airways
8.0
Very good
185 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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.
Emirates
8.0
Very good
3,200 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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
467 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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
9,887 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Comfort

8.1

Boarding

8.7

Crew

9.1

Food

7.8

Entertainment

7.3

Overall

8.8

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 Key Largo to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airlines for a one-way flight from Key Largo to Australia are Air Canada ($952), Qantas Airways ($964), and Qatar Airways ($1,023).

  • What are the most popular routes from Key Largo to Australia?

    The most popular flight routes from Key Largo to Australia are Miami - Sydney Kingsford Smith, Miami - Melbourne and Miami - Melbourne Avalon.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Key Largo to Australia (average of $1,046). Flying from Key Largo to Australia in December is currently the most expensive (average of $1,643). 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

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Top 8 airlines flying from Key Largo to Australia

Discover the top 8 airlines that operate flights from Key Largo to Australia. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$296Average$1,724FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$306Average$306FlexibilityNo cancel feeOn-time62%
DeltaCheapest$851Average$1,220FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$864Average$1,381FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$946Average$1,304FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$997Average$2,179FlexibilityNo cancel feeOn-time74%
Fiji AirwaysCheapest$1,191Average$1,404FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,260Average$1,706FlexibilityNo cancel feeOn-time78%

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