Cheap flights from Australia to Key Largo from $706

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
21 Feb — 28 Feb1
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 22 January 2026.

Sat 25/411:55
SYD
-
MIA
2 stops24h 33m
Air New Zealand
Wed 13/516:53
MIA
-
SYD
2 stops25h 52m
Air New Zealand
Deal found 20/1$1,586
Sun 1/311:25
BNE
-
MIA
3 stops39h 15m
Multiple Airlines
Thu 5/307:05
MIA
-
BNE
3 stops34h 40m
Multiple Airlines
Deal found 21/1$1,638
Tue 10/209:55
SYD
-
MIA
2 stops37h 56m
Air New Zealand
Mon 16/206:15
MIA
-
SYD
2 stops36h 15m
Air New Zealand
Deal found 20/1$1,656
Tue 10/311:45
SYD
-
MIA
2 stops34h 42m
Air New Zealand
Mon 16/306:15
MIA
-
SYD
2 stops37h 15m
Air New Zealand
Deal found 20/1$1,663
Thu 5/211:10
BNE
-
MIA
2 stops25h 44m
Air New Zealand
Sun 8/206:20
MIA
-
BNE
2 stops36h 35m
Air New Zealand
Deal found 21/1$1,664
Sun 1/209:40
BNE
-
MIA
2 stops36h 35m
American Airlines
Wed 4/215:55
MIA
-
BNE
1 stop22h 05m
American Airlines
Deal found 19/1$1,697
Wed 28/109:40
BNE
-
MIA
2 stops36h 35m
American Airlines
Wed 25/217:30
MIA
-
BNE
1 stop22h 00m
American Airlines
Deal found 21/1$1,704
Sun 25/109:55
SYD
-
MIA
2 stops27h 59m
Air New Zealand
Fri 13/206:15
MIA
-
SYD
2 stops36h 15m
Air New Zealand
Deal found 20/1$1,727
Mon 4/509:55
SYD
-
MIA
2 stops36h 34m
Air New Zealand
Mon 11/510:50
MIA
-
SYD
2 stops41h 20m
Air New Zealand
Deal found 20/1$1,731
Wed 28/108:20
BNE
-
MIA
2 stops28h 34m
Air New Zealand
Wed 25/208:45
MIA
-
BNE
2 stops34h 10m
Air New Zealand
Deal found 20/1$1,743
Tue 3/319:15
SYD
-
MIA
2 stops42h 44m
Air New Zealand
Wed 11/309:00
MIA
-
SYD
2 stops34h 30m
Air New Zealand
Deal found 20/1$1,776
Sun 1/209:55
SYD
-
MIA
2 stops27h 59m
Air New Zealand
Sun 15/208:35
MIA
-
SYD
2 stops41h 30m
Air New Zealand
Deal found 19/1$1,796

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 22 January 2026.

Round-trip from

$1,586

One-way from

$706

Popular in

January

Cheapest in

August

Average price

$2,603
Air New Zealand
  • Air New Zealand
  • 25/4-13/5
  • 4 total stops
  • 50h 25m total
  • Australia to Key Largo
1/3
  • 1/3
  • 3 total stops
  • 37h 40m total
  • Australia to Key Largo
Highest demand for flights based on searches. 9% potential increase in price ($317 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($80 potential savings vs. average return price).
Average for round-trip flights in January 2026

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 22 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

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Sun 1/3

11:25-11:40

3 stops39h 15m

Miami

Thu 5/3

07:05-08:45

3 stops34h 40m

$1,638

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Thu 5/2

11:10-21:54

2 stops25h 44m

Miami

Sun 8/2

06:20-09:55

2 stops36h 35m

$1,664

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Sun 1/2

12:10-09:14

2 stops36h 04m

Miami

Wed 4/2

13:40-05:00

2 stops24h 20m

$1,697

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

09:40-07:15

2 stops36h 35m

Miami

Wed 25/2

09:55-05:00

2 stops28h 05m

$1,697

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

08:20-21:54

2 stops28h 34m

Miami

Wed 25/2

08:45-09:55

2 stops34h 10m

$1,743

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 3/3

19:15-21:59

2 stops42h 44m

Miami

Wed 11/3

10:22-10:30

2 stops33h 08m

$1,789

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

08:20-21:54

2 stops28h 34m

Miami

Wed 25/2

12:01-09:55

3 stops30h 54m

$1,931

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Thu 5/2

19:40-10:31

2 stops29h 51m

Miami

Sun 8/2

06:02-08:45

3 stops35h 43m

$1,932

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

$1,987

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Mon 23/3

10:35-10:55

3 stops39h 20m

Miami

Mon 13/4

12:50-10:55

2 stops32h 05m

$1,989

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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 $740). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,321). 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 22 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.

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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

Crew

8.5

Food

7.4

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

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 25h 44m. 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 $466. Users have also found prices from $843 and $1,037 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 $740). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,321). 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 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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$649Average$2,341FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
DeltaCheapest$1,104Average$1,173FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air New ZealandCheapest$1,126Average$1,791FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,185Average$1,876FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,203Average$1,821FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,543Average$2,371FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qatar AirwaysCheapest$1,985Average$2,428FlexibilityNo 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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