HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$638+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SYD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Australia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 julio 31, 2025.

Round-trip from

$1,007
(Trip.com)

One-way from

$639
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$1,465
From Key Largo to Australia
Search Deals
One-way flight from Key Largo to Australia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($422 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($80 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 julio 31, 2025.

This Trip.com deal was found by Cheapflights users on 7/31. 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.
sáb. 9/612:18 pmMIA - SYD
2 stops28h 47mMultiple Airlines
lun. 9/2212:10 pmSYD - MIA
2 stops26h 02mMultiple Airlines
Deal found 7/31$1,007
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/62:20 pmMIA - SYD
2 stops51h 00mAir Canada
lun. 9/229:20 amSYD - MIA
2 stops42h 00mAir Canada
Deal found 7/30$1,027
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/1611:50 amMIA - MEL
3 stops33h 45mAir Canada
mar. 9/238:30 pmMEL - MIA
3 stops39h 04mAir Canada
Deal found 7/30$1,087
This Air Canada deal was found by Cheapflights users on 7/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/76:20 pmMIA - MEL
2 stops28h 00mMultiple Airlines
dom. 9/286:00 amMEL - MIA
2 stops25h 20mMultiple Airlines
Deal found 7/31$1,094
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/37:55 amMIA - BNE
2 stops33h 10mAir Canada
dom. 8/1710:00 amBNE - MIA
2 stops41h 11mAir Canada
Deal found 7/30$1,171
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/266:20 pmMIA - CBR
2 stops28h 35mMultiple Airlines
mar. 9/306:30 amCBR - MIA
3 stops29h 04mMultiple Airlines
Deal found 7/30$1,205
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/113:45 pmMIA - BNE
2 stops26h 00mMultiple Airlines
mar. 4/78:45 pmBNE - MIA
3 stops52h 46mMultiple Airlines
Deal found 7/30$1,217
This oojo deal was found by Cheapflights users on 7/31. 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.
mié. 11/268:45 amMIA - SYD
2 stops32h 00mAir New Zealand
sáb. 12/137:15 pmSYD - MIA
2 stops55h 38mAir New Zealand
Deal found 7/31$1,244
This oojo deal was found by Cheapflights users on 7/30. 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.
mar. 9/164:53 pmMIA - MEL
2 stops27h 57mAir New Zealand
mar. 9/238:35 amMEL - MIA
2 stops27h 40mAir New Zealand
Deal found 7/30$1,261
This KAYAK deal was found by Cheapflights users on 7/30. 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.
mié. 12/311:55 amMIA - BNE
2 stops31h 00mAir New Zealand
mar. 5/59:40 amBNE - MIA
2 stops26h 10mAir New Zealand
Deal found 7/30$1,295
This FlightHub deal was found by Cheapflights users on 7/31. 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.
lun. 9/82:42 pmMIA - SYD
2 stops31h 03mFiji Airways
mar. 9/166:00 amSYD - MIA
2 stops31h 05mFiji Airways
Deal found 7/31$1,311
This FlightHub deal was found by Cheapflights users on 7/30. 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.
mar. 8/267:40 pmMIA - BNE
2 stops24h 45mFiji Airways
sáb. 9/1311:50 pmBNE - MIA
2 stops44h 12mFiji Airways
Deal found 7/30$1,390

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 julio 31, 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

MiamiSydney

MIA - SYD

MIASYD

Miami

sáb. 9/6

12:18 pm-7:05 am

2 stops28h 47m

Sydney Kingsford Smith

lun. 9/22

12:10 pm-12:12 am

2 stops26h 02m

$1,007

MiamiSydney

MIA - SYD

MIASYD

Miami

sáb. 9/6

2:20 pm-7:20 am

2 stops51h 00m

Sydney Kingsford Smith

lun. 9/22

9:20 am-1:20 pm

2 stops42h 00m

$1,027

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

mar. 9/16

11:50 am-11:35 am

3 stops33h 45m

Melbourne

mar. 9/23

8:30 pm-9:34 pm

3 stops39h 04m

$1,087

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

dom. 9/7

6:20 pm-12:20 pm

2 stops28h 00m

Melbourne

dom. 9/28

6:00 am-5:20 pm

2 stops25h 20m

$1,094

MiamiBrisbane

MIA - BNE

MIABNE

Miami

mié. 11/19

8:00 am-8:45 am

2 stops33h 45m

Brisbane

mié. 5/6

10:00 am-9:26 pm

2 stops25h 26m

$1,175

MiamiCanberra

MIA - CBR

MIACBR

Miami

vie. 9/26

6:20 pm-12:55 pm

2 stops28h 35m

Canberra

mar. 9/30

6:30 am-9:34 pm

3 stops29h 04m

$1,205

MiamiBrisbane

MIA - BNE

MIABNE

Miami

mar. 11/11

3:45 pm-8:45 am

2 stops26h 00m

Brisbane

mar. 4/7

8:45 pm-11:31 am

3 stops52h 46m

$1,217

MiamiSydney

MIA - SYD

MIASYD

Miami

mié. 11/26

8:45 am-8:45 am

2 stops32h 00m

Sydney Kingsford Smith

sáb. 12/13

7:15 pm-10:53 am

2 stops55h 38m

$1,244

MiamiMelbourne

MIA - MEL

MIAMEL

Miami

mar. 9/16

4:53 pm-10:50 am

2 stops27h 57m

Melbourne

mar. 9/23

8:35 am-10:15 pm

2 stops27h 40m

$1,261

MiamiBrisbane

MIA - BNE

MIABNE

Miami

mié. 12/3

11:55 am-9:55 am

2 stops31h 00m

Brisbane

mar. 5/5

9:40 am-9:50 pm

2 stops26h 10m

$1,295

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 60 results
1
2
3
...
6

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 $1,028). Flying from Key Largo to Australia in December is currently the most expensive (average of $1,619). 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 julio 31, 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.

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 julio 31, 2025.
See what other customers who have flown with Air Tahiti Nui, ANA, and Emirates from Key Largo to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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
8.6
Very good
68 reviews
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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.
ANA
8.4
Very good
922 reviews
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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.
Emirates
8.1
Very good
3,300 reviews
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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.
Fiji Airways
8.0
Very good
202 reviews
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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
7,981 reviews
Air Tahiti Nui
8.6
Very good
68 reviews

Entertainment

7.2

Boarding

8.7

Food

7.7

Overall

8.6

Crew

9.0

Comfort

8.0

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 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 Fiji Airways ($680), Philippine Airlines ($846), and Air Canada ($891).

  • 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 - Brisbane.

  • 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 $1,028). Flying from Key Largo to Australia in December is currently the most expensive (average of $1,619). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key Largo to Australia

See prices for flight routes from nearby airports that may be better suited for you.
Orlando to Auckland flights
Miami to Sydney flights
Orlando to Sydney flights
Orlando to Melbourne flights
Tampa to Sydney flights
Fort Lauderdale to Sydney flights
Miami to Melbourne flights
Orlando to Tamuning flights
Tampa to Auckland flights
West Palm Beach to Sydney flights
Tampa to Melbourne flights
Melbourne to Auckland flights
Miami to Auckland flights
Miami to Brisbane flights
West Palm Beach to Melbourne flights
Miami to Papeete flights
Jacksonville to Auckland flights
Fort Lauderdale to Brisbane flights
Jacksonville to Sydney flights
Orlando to Brisbane flights
Tampa to Papeete flights
Orlando to Papeete flights
Pensacola to Sydney flights
Fort Myers to Sydney flights
Fort Lauderdale to Adelaide flights
Orlando to Avalon flights
Fort Lauderdale to Melbourne flights
Miami to Perth flights
Fort Lauderdale to Auckland flights
Miami to Vaitape flights
Sarasota to Auckland flights
Melbourne to Sydney flights
Orlando to Vaitape flights
Orlando to Perth flights
West Palm Beach to Auckland flights
Jacksonville to Avalon flights
Orlando to Dunedin flights
Orlando to Nadi flights
Miami to Rarotonga flights
Miami to Adelaide flights
Tampa to Brisbane flights
Tampa to Christchurch flights
Gainesville to Sydney flights
Sarasota to Sydney flights
Miami to Nadi flights
Tampa to Avalon flights
Daytona Beach to Sydney flights

Top 7 airlines flying from Key Largo to Australia

Discover the top 7 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$413Average$1,197FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$850Average$1,451FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$865Average$1,372FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$946Average$1,885FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$946Average$1,293FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,047Average$2,143FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,081Average$1,521FlexibilityNo cancel feeOn-time78%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.