Cheap flights from Australia to Key Largo from $919

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

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 16 January 2026.

Round-trip from

$1,527

One-way from

$919

Popular in

January

Cheapest in

February

Average price

$2,611
Air New Zealand
  • Air New Zealand
  • 12/3-23/3
  • 4 total stops
  • 60h 05m total
  • Australia to Key Largo
Air New Zealand
  • Air New Zealand
  • 22/1
  • 2 total stops
  • 27h 19m total
  • Australia to Key Largo
Highest demand for flights based on searches. 9% potential increase in price ($305 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($78 potential savings vs. average return price).
Average for round-trip flights in January 2026

Find 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 16 January 2026.

Mon 2/308:20
BNE
-
MIA
2 stops28h 39m
Air New Zealand
Mon 9/310:22
MIA
-
BNE
2 stops33h 33m
Air New Zealand
Deal found 15/1$1,524
Thu 12/309:55
SYD
-
MIA
2 stops27h 20m
Air New Zealand
Mon 23/309:00
MIA
-
SYD
2 stops32h 45m
Air New Zealand
Deal found 15/1$1,527
Sat 25/409:55
SYD
-
MIA
2 stops26h 33m
Air New Zealand
Mon 11/510:50
MIA
-
SYD
2 stops33h 50m
Air New Zealand
Deal found 14/1$1,529
Thu 5/209:55
SYD
-
MIA
2 stops27h 59m
Air New Zealand
Thu 19/213:00
MIA
-
SYD
2 stops27h 45m
Air New Zealand
Deal found 14/1$1,599
Wed 29/707:50
SYD
-
MIA
2 stops28h 00m
Air New Zealand
Wed 12/809:00
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 13/1$1,632
Mon 2/210:35
MEL
-
MIA
2 stops27h 19m
Air New Zealand
Mon 9/206:20
MIA
-
MEL
2 stops35h 05m
Air New Zealand
Deal found 13/1$1,638
Wed 18/208:35
MEL
-
MIA
2 stops29h 24m
Air New Zealand
Wed 25/213:00
MIA
-
MEL
2 stops36h 40m
Air New Zealand
Deal found 15/1$1,656
Mon 2/210:35
MEL
-
MIA
2 stops27h 19m
Air New Zealand
Thu 5/216:51
MIA
-
MEL
2 stops26h 04m
Air New Zealand
Deal found 13/1$1,657
Mon 9/309:55
SYD
-
MIA
2 stops27h 20m
Air New Zealand
Mon 16/310:22
MIA
-
SYD
2 stops31h 23m
Air New Zealand
Deal found 14/1$1,669
Tue 8/919:20
SYD
-
MIA
2 stops40h 30m
Air New Zealand
Wed 16/911:40
MIA
-
SYD
2 stops31h 05m
Air New Zealand
Deal found 15/1$1,678
Sun 1/209:40
BNE
-
MIA
2 stops36h 35m
American Airlines
Wed 4/215:55
MIA
-
BNE
1 stop22h 05m
American Airlines
Deal found 14/1$1,708
Wed 28/109:40
BNE
-
MIA
2 stops36h 35m
American Airlines
Wed 25/213:40
MIA
-
BNE
1 stop24h 20m
American Airlines
Deal found 14/1$1,711

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 16 January 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

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 12/3

09:55-22:15

2 stops27h 20m

Miami

Mon 23/3

09:00-08:45

2 stops32h 45m

$1,527

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Mon 2/2

10:35-21:54

2 stops27h 19m

Miami

Mon 9/2

06:20-09:25

2 stops35h 05m

$1,638

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Wed 18/2

08:35-21:59

2 stops29h 24m

Miami

Wed 25/2

13:00-17:40

2 stops36h 40m

$1,656

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Sun 1/2

09:40-07:15

2 stops36h 35m

Miami

Wed 4/2

13:40-05:00

2 stops24h 20m

$1,708

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

09:40-07:15

2 stops36h 35m

Miami

Wed 25/2

13:40-05:00

1 stop24h 20m

$1,711

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

08:20-21:54

2 stops28h 34m

Miami

Wed 25/2

13:00-09:55

2 stops29h 55m

$1,714

AdelaideMiami

ADL - MIA

ADLMIA

Adelaide

Sun 1/2

11:55-21:54

2 stops25h 29m

Miami

Fri 20/2

06:15-10:55

2 stops37h 10m

$1,737

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:20-11:25

2 stops39h 05m

Miami

Mon 16/3

08:00-08:35

2 stops33h 35m

$1,757

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 4/5

09:35-22:27

2 stops26h 52m

Miami

Tue 2/6

11:40-11:05

3 stops33h 25m

$1,789

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

13:55-05:51

3 stops30h 56m

Miami

Fri 3/4

09:00-09:45

2 stops33h 45m

$1,792

Flights are sorted by cheapest return flights first.

Deals found on 13/1

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 $747). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,333). 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 16 January 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.

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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

Overall

8.0

Crew

8.5

Comfort

8.0

Boarding

8.2

Entertainment

7.4

Food

7.4

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 27h 20m. There are 15012 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 $470. Users have also found prices from $851 and $1,046 on Air New Zealand and Air Canada, respectively.

  • What are the most popular routes 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 $747). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,333). 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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Top 8 airlines flying from Australia to Key Largo

Discover the top 8 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$655Average$2,362FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
DeltaCheapest$1,117Average$1,176FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air New ZealandCheapest$1,137Average$1,808FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,196Average$1,944FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,214Average$1,834FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$1,521Average$2,844FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
American AirlinesCheapest$1,657Average$2,532FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qatar AirwaysCheapest$2,003Average$2,445FlexibilityNo 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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