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Cheap flights from Australia to Key Largo from $723

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
15 Jul — 22 Jul1
1 adult

Cheap flight deals from Australia to Key Largo

Keep the following information in mind while searching for Australia to Key Largo flight deals. Data was last updated 10 July 2025.

Round-trip from

$1,690

One-way from

$723

Popular in

December

Cheapest in

March

Average price

$2,255
American Airlines
  • American Airlines
  • 1/8-14/8
  • 2 total stops
  • 57h 26m total
  • Australia to Key Largo
Search Deals
15/10
  • 15/10
  • 2 total stops
  • 39h 09m total
  • Australia to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($481 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 July 2025
Search Deals

Find flight deals from Australia to Key Largo

Cheapest flights from Australia to Key Largo
Explore the most affordable flight options available from Australia to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2025.

Fri 1/815:05MEL - MIA
1 stop23h 44mAmerican Airlines
Thu 14/807:03MIA - MEL
1 stop33h 42mAmerican Airlines
Deal found 8/7$1,690
Fri 1/809:55SYD - MIA
2 stops26h 44mAir New Zealand
Fri 15/816:53MIA - SYD
2 stops25h 52mAir New Zealand
Deal found 8/7$1,705
Fri 15/812:10SYD - MIA
2 stops34h 49mAmerican Airlines
Sat 30/822:47MIA - SYD
2 stops42h 18mAmerican Airlines
Deal found 8/7$1,724
Thu 7/809:10SYD - MIA
2 stops25h 35mBritish Airways
Wed 20/814:20MIA - SYD
2 stops26h 45mBritish Airways
Deal found 9/7$1,730
Mon 3/1111:10BNE - MIA
2 stops25h 48mAir New Zealand
Fri 7/1109:00MIA - BNE
2 stops33h 55mAir New Zealand
Deal found 8/7$1,736
Thu 7/812:05MEL - MIA
2 stops24h 34mAir New Zealand
Thu 14/812:06MIA - MEL
2 stops32h 44mAir New Zealand
Deal found 8/7$1,739
Sat 23/817:45SYD - MIA
2 stops30h 29mMultiple Airlines
Sat 30/815:15MIA - SYD
2 stops26h 15mMultiple Airlines
Deal found 9/7$1,831
Mon 3/1111:10BNE - MIA
3 stops39h 39mMultiple Airlines
Fri 7/1109:00MIA - BNE
2 stops33h 55mMultiple Airlines
Deal found 8/7$1,887
Sun 24/811:55ADL - MIA
2 stops23h 50mMultiple Airlines
Sat 30/808:40MIA - ADL
3 stops36h 45mMultiple Airlines
Deal found 8/7$1,901
Sat 16/812:05MEL - MIA
3 stops36h 59mMultiple Airlines
Sat 30/808:40MIA - MEL
3 stops36h 10mMultiple Airlines
Deal found 8/7$1,901
Fri 22/809:10SYD - MIA
1 stop25h 19mIberia
Fri 29/810:04MIA - SYD
1 stop31h 01mIberia
Deal found 8/7$1,903
Sat 1/1110:20SYD - MIA
2 stops27h 09mAir Canada
Sun 30/1108:00MIA - SYD
2 stops33h 35mAir Canada
Deal found 8/7$1,949

Cheapflights Fare Finder

Customise your flight search to find flights from Australia 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 10 July 2025.
Use the filters below to find and compare flights from Australia to Key Largo that are best for you.

Fly from

Australia

Fly to

Key Largo

Route

Depart

Return

Price

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Fri 1/8

15:05-00:49

1 stop23h 44m

Miami

Thu 14/8

07:03-06:45

1 stop33h 42m

$1,690

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 1/8

09:55-22:39

2 stops26h 44m

Miami

Fri 15/8

16:53-08:45

2 stops25h 52m

$1,705

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 15/8

12:10-08:59

2 stops34h 49m

Miami

Sat 30/8

22:47-07:05

2 stops42h 18m

$1,724

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 7/8

09:10-20:45

2 stops25h 35m

Miami

Wed 20/8

14:20-07:05

2 stops26h 45m

$1,730

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 3/11

11:10-21:58

2 stops25h 48m

Miami

Fri 7/11

09:00-09:55

2 stops33h 55m

$1,736

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Thu 7/8

12:05-22:39

2 stops24h 34m

Miami

Thu 14/8

12:06-10:50

2 stops32h 44m

$1,739

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 23/8

17:45-10:14

2 stops30h 29m

Miami

Sat 30/8

15:15-07:30

2 stops26h 15m

$1,831

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 3/11

11:10-11:49

3 stops39h 39m

Miami

Fri 7/11

09:00-09:55

2 stops33h 55m

$1,887

AdelaideMiami

ADL - MIA

ADLMIA

Adelaide

Sun 24/8

11:55-22:15

2 stops23h 50m

Miami

Sat 30/8

08:40-10:55

3 stops36h 45m

$1,901

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Sat 16/8

12:05-11:04

3 stops36h 59m

Miami

Sat 30/8

08:40-10:50

3 stops36h 10m

$1,901

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 59 results
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Best time to book a flight from Australia to Key Largo

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

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

Currently, March is the cheapest month in which you can book a flight from Australia to Key Largo (average of $1,294). Flying from Australia to Key Largo in December is currently the most expensive (average of $2,112). 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 AU to KE9?

Find hourly flight availability from Australia 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 10 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Australia to Key Largo as you normally would.

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 10 July 2025.
Check out reviews from past customers who have flown with Air Tahiti Nui, Emirates, andDelta from Australia to Key Largo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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
8.1
Very Good
3,288 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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.
Delta
8.0
Very Good
7,952 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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
492 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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.
Cathay Pacific
7.6
Good
929 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Boarding

8.7

Comfort

8.1

Crew

9.0

Overall

8.7

Food

7.8

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $1,128. Users have also found prices from $1,133 and $1,185 on Air Canada and Delta, respectively.

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

    Most travellers choose Sydney Kingsford Smith - Miami, Brisbane - Miami or Melbourne - Miami when deciding on the best route from Australia to Key Largo.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Australia to Key Largo (average of $1,294). Flying from Australia to Key Largo in December is currently the most expensive (average of $2,112). 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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Alternative routes for Australia to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Australia to Key Largo

Discover the top 10 airlines that operate flights from Australia 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 10 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,141Average$1,514FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,225Average$2,341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,237Average$1,954FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,491Average$2,742FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,595Average$2,246FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,635Average$2,051FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,701Average$2,750FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Japan AirlinesCheapest$1,919Average$2,540FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$2,007Average$2,274FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qatar AirwaysCheapest$2,200Average$2,720FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Australia to Key Largo?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Australia to Key Largo. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Australia to Key Largo?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key Largo from Australia.

Can Cheapflights find flights from Australia to Key Largo with no change fees?

Certainly. Search results for flights to Key Largo from Australia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Australia to Key Largo become cheaper?

Not ready to book yet? You can track prices for flights from Australia to Key Largo on Cheapflights with our Price Alert feature and get notified when better prices are available.

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