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$400+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SYD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$871
(United Airlines)

One-way from

$400
(Delta)

Popular in

December

Cheapest in

February

Average price

$1,041
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. 20% potential increase in price ($393 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($76 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2012:21 pmMIA - SYD
2 stops28h 44mUnited Airlines
Wed 3/512:10 pmSYD - MIA
2 stops25h 31mUnited Airlines
Deal found 2/19$871
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:50 amMIA - SYD
1 stop31h 00mDelta
Wed 3/1210:05 amSYD - MIA
1 stop22h 23mDelta
Deal found 2/19$876
This oojo deal was found by Cheapflights users on 2/19. 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 8/127:55 pmMIA - BNE
2 stops24h 30mFiji Airways
Tue 11/1111:35 amBNE - MIA
2 stops25h 43mFiji Airways
Deal found 2/19$1,218
This Mytrip deal was found by Cheapflights users on 2/19. 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 4/87:20 amMIA - SYD
3 stops34h 00mMultiple Airlines
Tue 4/156:00 amSYD - MIA
3 stops47h 30mMultiple Airlines
Deal found 2/19$1,227
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:35 amMIA - SYD
2 stops45h 10mAir New Zealand
Thu 1/89:55 amSYD - MIA
2 stops41h 20mAir New Zealand
Deal found 2/19$1,252
This FlightHub deal was found by Cheapflights users on 2/19. 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.
Tue 5/65:00 pmMIA - BNE
2 stops28h 00mAir New Zealand
Wed 5/219:45 amBNE - MIA
2 stops26h 44mAir New Zealand
Deal found 2/19$1,285
This oojo deal was found by Cheapflights users on 2/19. 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 6/48:41 amMIA - MEL
2 stops36h 09mAir New Zealand
Sun 6/156:55 pmMEL - MIA
2 stops41h 50mAir New Zealand
Deal found 2/19$1,298
This Fiji Airways deal was found by Cheapflights users on 2/19. 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 4/87:04 pmMIA - MEL
2 stops26h 26mFiji Airways
Fri 5/1611:35 pmMEL - MIA
2 stops37h 12mFiji Airways
Deal found 2/19$1,438
This Mytrip deal was found by Cheapflights users on 2/20. 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 3/255:07 pmMIA - MEL
3 stops32h 13mMultiple Airlines
Sat 4/127:00 amMEL - MIA
3 stops46h 30mMultiple Airlines
Deal found 2/20$1,459
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sun 11/238:35 amMIA - PER
2 stops43h 20mAir New Zealand
Wed 12/36:50 pmPER - MIA
2 stops40h 00mAir New Zealand
Deal found 2/20$1,519
This CrystalTravel deal was found by Cheapflights users on 2/19. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2110:30 amMIA - SYD
2 stops41h 35mTurkish Airlines
Sun 4/68:55 pmSYD - MIA
2 stops37h 25mTurkish Airlines
Deal found 2/19$1,544
This Delta deal was found by Cheapflights users on 2/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/218:50 amMIA - BNE
1 stop31h 55mDelta
Fri 3/289:45 amBNE - MIA
1 stop21h 43mDelta
Deal found 2/18$1,551

Find flights from Key Largo to Australia within your budget

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 February 20, 2025.

Fly from

Key Largo

Fly to

Australia

Route

Depart

Return

Price

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 4/15

4:48 pm-6:55 am

1 stop24h 07m

Sydney Kingsford Smith

Wed 4/30

9:30 am-11:44 pm

2 stops28h 14m

$871

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 3/4

7:50 am-6:50 am

1 stop31h 00m

Sydney Kingsford Smith

Wed 3/12

10:05 am-5:28 pm

1 stop22h 23m

$876

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Tue 8/12

7:55 pm-10:25 am

2 stops24h 30m

Brisbane

Tue 11/11

11:35 am-10:18 pm

2 stops25h 43m

$1,218

MiamiSydney

MIA - SYD

MIASYD

Miami

Tue 4/8

7:20 am-7:20 am

3 stops34h 00m

Sydney Kingsford Smith

Tue 4/15

6:00 am-3:30 pm

3 stops47h 30m

$1,227

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Tue 5/6

5:00 pm-11:00 am

2 stops28h 00m

Brisbane

Wed 5/21

9:45 am-10:29 pm

2 stops26h 44m

$1,285

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

Wed 6/4

8:41 am-10:50 am

2 stops36h 09m

Melbourne

Sun 6/15

6:55 pm-10:45 pm

2 stops41h 50m

$1,298

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

Tue 4/8

7:04 pm-11:30 am

2 stops26h 26m

Melbourne

Fri 5/16

11:35 pm-10:47 pm

2 stops37h 12m

$1,438

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

Tue 3/25

5:07 pm-4:20 pm

3 stops32h 13m

Melbourne

Sat 4/12

7:00 am-3:30 pm

3 stops46h 30m

$1,459

MiamiSydney

MIA - SYD

MIASYD

Miami

Fri 3/21

10:30 am-7:05 pm

2 stops41h 35m

Sydney Kingsford Smith

Sun 4/6

8:55 pm-8:20 pm

2 stops37h 25m

$1,544

MiamiBrisbane

MIA - BNE

MIABNE

Miami

Fri 3/21

8:50 am-6:45 am

1 stop31h 55m

Brisbane

Fri 3/28

9:45 am-5:28 pm

1 stop21h 43m

$1,551

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 59 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.

Travel insights for flights from Key Largo to Australia

Get recent, data-driven insights about flights from Key Largo to Australia including ideal travel times, pricing trends, and more.

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 $1,051). 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 February 20, 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 February 20, 2025.
To help decide which airline to fly from Key Largo to Australia, see what other customers have to say about Air Tahiti Nui, China Airlines 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
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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.

China Airlines
8.2
Very good
727 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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
8.1
Very good
3,279 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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
8,220 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

Boarding

8.7

Entertainment

7.2

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 Delta ($400), Fiji Airways ($868), and Alaska Airlines ($876).

  • 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 $1,051). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$306Average$306FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$346Average$1,687FlexibilityNo cancel feeOn-time71%
DeltaCheapest$851Average$1,294FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$859Average$1,459FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$997Average$2,166FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$1,074Average$1,497FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$1,191Average$1,401FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,308Average$1,541FlexibilityNo cancel feeOn-time78%
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