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Cheap flights from Australia to Key Largo from $585

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
6 Mar — 13 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Key Largo

Enter your travel dates to find the best prices.

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 4 February 2026.

Fri 6/210:45
BNE
-
MIA
2 stops45h 44m
Air Canada
Thu 19/207:25
MIA
-
BNE
2 stops34h 20m
Air Canada
Deal found 4/2$1,173
Mon 4/510:00
BNE
-
MIA
1 stop21h 12m
Air Canada
Tue 2/608:05
MIA
-
BNE
2 stops33h 00m
Air Canada
Deal found 4/2$1,192
Thu 5/210:45
BNE
-
MIA
2 stops24h 35m
Air Canada
Mon 9/212:25
MIA
-
BNE
2 stops53h 20m
Air Canada
Deal found 3/2$1,204
Mon 28/909:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Tue 6/1008:15
MIA
-
SYD
2 stops57h 05m
Air Canada
Deal found 4/2$1,237
Mon 9/311:20
SYD
-
MIA
2 stops39h 05m
Air Canada
Mon 16/318:15
MIA
-
SYD
2 stops47h 20m
Air Canada
Deal found 4/2$1,316
Mon 25/509:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Fri 29/508:05
MIA
-
SYD
2 stops57h 15m
Air Canada
Deal found 3/2$1,379
Mon 28/909:20
SYD
-
MIA
3 stops50h 57m
Multiple Airlines
Tue 6/1015:40
MIA
-
SYD
2 stops25h 40m
Multiple Airlines
Deal found 4/2$1,390
Tue 21/420:50
MEL
-
MIA
2 stops34h 47m
Multiple Airlines
Tue 28/412:20
MIA
-
MEL
3 stops33h 05m
Multiple Airlines
Deal found 4/2$1,393
Fri 6/209:40
BNE
-
MIA
2 stops36h 33m
British Airways
Thu 19/217:30
MIA
-
BNE
1 stop22h 00m
British Airways
Deal found 4/2$1,408
Thu 5/209:40
BNE
-
MIA
2 stops36h 35m
American Airlines
Mon 9/219:55
MIA
-
BNE
1 stop42h 05m
American Airlines
Deal found 3/2$1,460
Thu 23/420:50
MEL
-
MIA
2 stops34h 47m
Multiple Airlines
Thu 30/412:20
MIA
-
MEL
3 stops33h 05m
Multiple Airlines
Deal found 4/2$1,470
Wed 4/312:00
MEL
-
MIA
2 stops38h 28m
Multiple Airlines
Wed 11/305:05
MIA
-
MEL
2 stops37h 25m
Multiple Airlines
Deal found 4/2$1,484

Find 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 4 February 2026.

Round-trip from

$1,192

One-way from

$585

Popular in

January

Cheapest in

August

Average price

$1,610
Air Canada
  • Air Canada
  • 4/5-2/6
  • 3 total stops
  • 54h 12m total
  • Australia to Key Largo
Search Deals
3/3
  • 3/3
  • 3 total stops
  • 44h 28m total
  • Australia to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($297 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 4 February 2026.
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

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 4/5

10:00-17:12

1 stop21h 12m

Miami

Tue 2/6

08:05-07:05

2 stops33h 00m

$1,192

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:20-11:25

2 stops39h 05m

Miami

Mon 16/3

18:15-08:35

2 stops47h 20m

$1,316

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 25/5

09:20-17:12

1 stop21h 52m

Miami

Fri 29/5

08:05-07:20

2 stops57h 15m

$1,379

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Fri 6/3

10:45-23:59

3 stops28h 14m

Miami

Fri 13/3

06:06-07:45

3 stops35h 39m

$1,568

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 4/5

20:35-07:03

1 stop24h 28m

Miami

Tue 2/6

15:59-05:00

1 stop23h 01m

$1,594

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 26/3

11:20-18:53

1 stop22h 33m

Miami

Wed 22/4

16:45-07:05

1 stop24h 20m

$1,623

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 26/3

11:20-20:27

2 stops24h 07m

Miami

Wed 22/4

18:20-07:05

1 stop22h 45m

$1,624

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:20-21:23

1 stop25h 03m

Miami

Mon 16/3

09:04-09:00

1 stop32h 56m

$1,637

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 3/3

17:45-00:59

2 stops23h 14m

Miami

Wed 1/4

15:32-07:30

2 stops24h 58m

$1,644

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Mon 2/3

12:00-20:08

2 stops24h 08m

Miami

Mon 30/3

15:32-05:00

1 stop22h 28m

$1,644

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 60 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, September is the cheapest month in which you can book a flight from Australia to Key Largo (average of $714). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,273). 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.

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 4 February 2026.
Check out reviews from past customers who have flown with Air New Zealand, Qantas Airways, andQatar Airways 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 New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air New Zealand
8.0
Very Good
580 reviews
Air New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qantas Airways
7.5
Good
986 reviews
Air New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qatar Airways
7.4
Good
3,729 reviews
Air New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
United Airlines
7.4
Good
9,235 reviews
Air New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air Canada
7.1
Good
10,688 reviews
Air New Zealand
8.0
Very Good
580 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

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.

  • How long is the flight from Australia to Key Largo?

    Departing from Australia to Key Largo will take you 21h 12m. There are 14734 km between Australia and Key Largo. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $353. Users have also found prices from $807 and $813 on Qantas Airways and Air New Zealand, respectively.

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

    Most travellers choose Sydney Kingsford Smith - Miami, Melbourne - Miami or Perth - 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, September is the cheapest month in which you can book a flight from Australia to Key Largo (average of $714). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,273). 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.

Top 7 airlines flying from Australia to Key Largo

Discover the top 7 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 4 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$610Average$1,851FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air New ZealandCheapest$1,085Average$1,709FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
DeltaCheapest$1,108Average$1,132FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,159Average$1,809FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,421Average$2,384FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,487Average$2,290FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qatar AirwaysCheapest$1,913Average$2,346FlexibilityNo 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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