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Cheap flights from Australia to Key Largo from $886

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
25 Jun — 2 Jul1
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 26 May 2026.

Thu 16/709:20
SYD
-
MIA
2 stops26h 51m
Air Canada
Tue 21/708:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 25/5$1,233
Mon 12/1010:20
SYD
-
MIA
1 stop21h 54m
Air Canada
Thu 22/1008:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 25/5$1,234
Wed 3/609:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Wed 17/607:15
MIA
-
SYD
2 stops34h 05m
Air Canada
Deal found 24/5$1,236
Thu 10/909:20
SYD
-
MIA
2 stops26h 57m
Air Canada
Thu 24/908:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 24/5$1,240
Tue 21/709:20
SYD
-
MIA
2 stops25h 28m
Air Canada
Tue 28/708:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 22/5$1,245
Mon 7/909:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Mon 21/913:10
MIA
-
SYD
2 stops52h 10m
Air Canada
Deal found 24/5$1,247
Wed 8/709:20
SYD
-
MIA
2 stops45h 41m
Air Canada
Tue 21/721:45
MIA
-
SYD
2 stops43h 35m
Air Canada
Deal found 26/5$1,248
Tue 4/809:20
SYD
-
MIA
2 stops26h 51m
Air Canada
Tue 11/808:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 21/5$1,254
Thu 28/510:55
MEL
-
MIA
1 stop34h 44m
United Airlines
Wed 10/616:53
MIA
-
MEL
2 stops24h 37m
United Airlines
Deal found 24/5$1,344
Sun 24/509:30
MEL
-
MIA
3 stops27h 10m
United Airlines
Sat 6/618:35
MIA
-
MEL
1 stop23h 40m
United Airlines
Deal found 22/5$1,346
Wed 10/609:30
MEL
-
MIA
2 stops26h 29m
United Airlines
Wed 9/907:00
MIA
-
MEL
2 stops34h 30m
United Airlines
Deal found 25/5$1,353
Sun 7/610:55
MEL
-
MIA
2 stops25h 45m
United Airlines
Mon 7/916:58
MIA
-
MEL
1 stop25h 17m
United Airlines
Deal found 25/5$1,483

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 26 May 2026.

Round-trip from

$1,233

One-way from

$886

Popular in

January

Cheapest in

February

Average price

$1,817
Air Canada
  • Air Canada
  • 16/7-21/7
  • 4 total stops
  • 59h 56m total
  • Australia to Key Largo
Search Deals
United Airlines
  • United Airlines
  • 4/6
  • 3 total stops
  • 27h 10m total
  • Australia to Key Largo
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($442 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($113 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 26 May 2026.
Use the filters below to find and compare flights from Australia to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 4/8

10:20-17:29

1 stop21h 09m

Miami

Tue 11/8

12:17-06:55

2 stops28h 38m

$1,434

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 13/7

09:30-21:59

2 stops26h 29m

Miami

Wed 22/7

07:37-07:00

2 stops33h 23m

$1,435

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 19/8

09:30-22:34

3 stops27h 04m

Miami

Sat 12/9

19:59-06:55

2 stops44h 56m

$1,442
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/6

10:20-17:29

1 stop21h 09m

Miami

Sun 14/6

18:30-06:55

1 stop22h 25m

$1,505

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/6

10:20-17:29

1 stop21h 09m

Miami

Sat 20/6

16:06-06:55

2 stops48h 49m

$1,505

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/6

10:20-20:33

2 stops24h 13m

Miami

Wed 17/6

18:35-06:55

1 stop22h 20m

$1,523

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 5/6

10:20-07:39

1 stop35h 19m

Miami

Fri 19/6

16:06-06:55

2 stops48h 49m

$1,575

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Sat 6/6

10:55-07:39

1 stop34h 44m

Miami

Thu 10/9

15:57-08:15

2 stops50h 18m

$1,653

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Fri 5/6

10:55-07:39

1 stop34h 44m

Miami

Thu 10/9

16:58-08:15

1 stop25h 17m

$1,653

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 22/6

09:15-09:33

2 stops38h 18m

Miami

Wed 1/7

10:40-06:50

2 stops30h 10m

$1,883

Flights are sorted by cheapest return flights first.

Deals found on 21/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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
No data available for this route at this time. Please check back soon.

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 26 May 2026.
Check out reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines 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
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very Good
648 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,042 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,749 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
American Airlines
7.1
Good
11,629 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air Canada
7.1
Good
11,090 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.4

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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 09m. 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 Air New Zealand. According to our data, you can fly for as low as $711. Users have also found prices from $789 and $891 on Qantas Airways and Delta, respectively.

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

    Most travellers choose Melbourne - Miami, Sydney Kingsford Smith - Miami or Brisbane - 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.

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 26 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$596Average$1,622FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$611Average$2,079FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$999Average$1,593FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,263Average$2,075FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,398Average$1,688FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
DeltaCheapest$1,747Average$2,084FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qatar AirwaysCheapest$1,858Average$2,288FlexibilityNo 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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