Cheap flights from Australia to Key Largo from $879

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
25 Mar — 1 Apr1
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 23 February 2026.

Sat 21/209:40
BNE
-
MIA
2 stops36h 36m
Qantas Airways
Mon 23/207:00
MIA
-
BNE
1 stop31h 00m
Qantas Airways
Deal found 19/2$1,131
Sat 21/209:40
BNE
-
MIA
2 stops36h 36m
American Airlines
Mon 23/207:00
MIA
-
BNE
1 stop31h 00m
American Airlines
Deal found 19/2$1,133
Thu 26/209:55
SYD
-
MIA
2 stops28h 04m
Air New Zealand
Mon 9/310:22
MIA
-
SYD
2 stops32h 53m
Air New Zealand
Deal found 21/2$1,594
Mon 23/209:40
BNE
-
MIA
2 stops36h 34m
American Airlines
Sun 8/308:44
MIA
-
BNE
2 stops30h 16m
American Airlines
Deal found 19/2$1,624
Sun 15/308:40
BNE
-
MIA
2 stops36h 36m
American Airlines
Wed 18/313:40
MIA
-
BNE
1 stop25h 20m
American Airlines
Deal found 22/2$1,629
Fri 7/808:35
MEL
-
MIA
2 stops28h 05m
Air New Zealand
Mon 24/817:00
MIA
-
MEL
2 stops27h 55m
Air New Zealand
Deal found 20/2$1,797
Sun 19/412:10
MEL
-
MIA
2 stops24h 18m
Air New Zealand
Thu 30/416:52
MIA
-
MEL
2 stops28h 03m
Air New Zealand
Deal found 22/2$1,803
Wed 4/313:55
SYD
-
MIA
2 stops24h 04m
Air New Zealand
Wed 11/313:00
MIA
-
SYD
2 stops28h 45m
Air New Zealand
Deal found 21/2$1,804
Mon 20/409:55
SYD
-
MIA
2 stops26h 33m
Air New Zealand
Mon 27/409:00
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 22/2$1,811
Mon 3/809:35
BNE
-
MIA
2 stops27h 05m
Air New Zealand
Thu 27/811:40
MIA
-
BNE
2 stops40h 45m
Air New Zealand
Deal found 21/2$1,831
Sun 19/409:55
SYD
-
MIA
2 stops26h 33m
Air New Zealand
Sun 26/409:00
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 20/2$1,875
Sat 28/214:05
SYD
-
MIA
1 stop37h 35m
Multiple Airlines
Thu 23/415:15
MIA
-
SYD
2 stops30h 35m
Multiple Airlines
Deal found 21/2$1,882

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 23 February 2026.

Round-trip from

$1,629

One-way from

$879

Popular in

January

Cheapest in

August

Average price

$1,600
American Airlines
  • American Airlines
  • 15/3-18/3
  • 4 total stops
  • 60h 36m total
  • Australia to Key Largo
16/3
  • 16/3
  • 2 total stops
  • 28h 54m total
  • Australia to Key Largo
Highest demand for flights based on searches. 11% potential increase in price ($355 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($100 potential savings vs. average return price).
Average for round-trip flights in February 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 23 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 3/8

09:35-22:40

2 stops27h 05m

Miami

Thu 27/8

11:40-18:25

2 stops40h 45m

$1,831

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 19/4

09:15-17:14

1 stop21h 59m

Miami

Sun 26/4

06:42-06:50

2 stops34h 08m

$1,896

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/3

09:40-06:49

1 stop36h 09m

Miami

Sun 29/3

08:10-07:50

2 stops32h 40m

$1,896

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 10/3

13:15-20:50

2 stops22h 35m

Miami

Sun 22/3

10:26-06:05

2 stops28h 39m

$1,896

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 20/3

09:40-06:49

1 stop36h 09m

Miami

Fri 27/3

10:26-07:30

2 stops30h 04m

$1,896

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

09:40-17:19

1 stop22h 39m

Miami

Fri 3/4

18:29-07:50

1 stop22h 21m

$1,896

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 26/5

09:15-19:47

2 stops24h 32m

Miami

Sat 6/6

08:05-06:50

2 stops32h 45m

$1,897

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

13:15-06:49

1 stop32h 34m

Miami

Mon 16/3

14:39-07:25

2 stops25h 46m

$1,897

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Wed 22/4

08:35-22:28

2 stops27h 53m

Miami

Tue 28/4

12:50-10:55

3 stops32h 05m

$1,913

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Fri 17/4

13:35-20:50

1 stop21h 15m

Miami

Sat 18/4

13:33-06:45

2 stops27h 12m

$1,936

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 57 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 $649). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,257). 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 23 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.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Entertainment

7.4

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

8.0

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

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 59m. 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 $349. Users have also found prices from $719 and $798 on Air New Zealand and Qantas Airways, 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 $649). Flying from Australia to Key Largo in July is currently the most expensive (average of $1,257). 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 23 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$603Average$1,865FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$618Average$2,277FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,011Average$1,669FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest$1,110Average$1,479FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$1,277Average$2,255FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,414Average$1,702FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qatar AirwaysCheapest$1,891Average$2,313FlexibilityNo 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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