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Cheap flights from Australia to Key Largo from $918

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

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 13 November 2025.

Mon 17/1111:20SYD - MIA
1 stop23h 56mAmerican Airlines
Mon 1/1218:25MIA - SYD
1 stop22h 35mAmerican Airlines
Deal found 11/11$1,576
Sat 6/1218:05BNE - MIA
2 stops42h 38mAir New Zealand
Thu 11/1207:00MIA - BNE
2 stops35h 55mAir New Zealand
Deal found 12/11$1,732
Thu 4/1211:20SYD - MIA
2 stops25h 40mAmerican Airlines
Thu 8/115:55MIA - SYD
1 stop25h 05mAmerican Airlines
Deal found 11/11$1,734
Thu 27/1119:15SYD - MIA
2 stops42h 45mAir New Zealand
Mon 8/1209:00MIA - SYD
2 stops31h 45mAir New Zealand
Deal found 10/11$1,758
Mon 15/1211:20SYD - MIA
1 stop26h 40mAmerican Airlines
Tue 23/1213:59MIA - SYD
2 stops27h 01mAmerican Airlines
Deal found 12/11$1,783
Tue 16/1221:25SYD - MIA
1 stop35h 03mAmerican Airlines
Tue 23/1213:27MIA - SYD
1 stop27h 33mAmerican Airlines
Deal found 12/11$1,793
Wed 17/1207:05SYD - MIA
2 stops23h 07mAmerican Airlines
Tue 23/1221:50MIA - SYD
1 stop43h 10mAmerican Airlines
Deal found 12/11$1,821
Sat 13/1211:20SYD - MIA
2 stops26h 26mAmerican Airlines
Tue 23/1218:34MIA - SYD
1 stop22h 26mAmerican Airlines
Deal found 12/11$1,858
Mon 8/1209:55SYD - MIA
2 stops27h 48mAir New Zealand
Mon 22/1208:45MIA - SYD
2 stops32h 00mAir New Zealand
Deal found 10/11$1,887
Mon 17/1109:55SYD - MIA
2 stops40h 58mAir New Zealand
Mon 1/1209:00MIA - SYD
2 stops35h 40mAir New Zealand
Deal found 11/11$1,932
Thu 4/1221:40SYD - MIA
2 stops34h 20mAlaska Airlines
Sat 13/1218:34MIA - SYD
2 stops57h 11mAlaska Airlines
Deal found 9/11$1,949
Thu 4/1221:40SYD - MIA
2 stops34h 20mAlaska Airlines
Mon 15/1218:34MIA - SYD
2 stops57h 11mAlaska Airlines
Deal found 9/11$1,951

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 13 November 2025.

Round-trip from

$1,499

One-way from

$918

Popular in

December

Cheapest in

March

Average price

$1,888
Air New Zealand
  • Air New Zealand
  • 1/2-20/2
  • 4 total stops
  • 58h 24m total
  • Australia to Key Largo
Search Deals
5/2
  • 5/2
  • 2 total stops
  • 28h 26m total
  • Australia to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($461 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 13 November 2025.
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

AdelaideMiami

ADL - MIA

ADLMIA

Adelaide

Wed 11/3

06:25-07:24

2 stops39h 29m

Miami

Sun 15/3

21:47-13:00

2 stops48h 43m

$1,796

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Sun 10/5

12:05-07:47

2 stops33h 42m

Miami

Thu 14/5

17:00-10:50

2 stops27h 50m

$1,824

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 13/12

11:20-21:46

2 stops26h 26m

Miami

Tue 23/12

18:34-09:00

1 stop22h 26m

$1,858

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Mon 2/2

10:45-22:29

2 stops26h 44m

Miami

Mon 9/2

18:40-08:45

1 stop23h 05m

$1,871

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Sun 1/2

12:10-10:56

3 stops38h 46m

Miami

Fri 20/2

12:01-09:25

3 stops29h 24m

$1,902

MelbourneMiami

MEL - MIA

MELMIA

Melbourne

Fri 1/5

08:35-11:15

3 stops40h 40m

Miami

Fri 15/5

17:00-10:50

2 stops27h 50m

$1,902

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 28/1

11:10-21:54

2 stops25h 44m

Miami

Wed 25/2

12:01-09:55

3 stops30h 54m

$1,932

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 4/12

21:40-16:00

2 stops34h 20m

Miami

Sat 13/12

18:34-19:45

2 stops57h 11m

$1,949

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Sat 31/1

19:40-10:31

2 stops29h 51m

Miami

Sun 1/2

21:20-08:45

3 stops44h 25m

$1,957

BrisbaneMiami

BNE - MIA

BNEMIA

Brisbane

Wed 11/3

09:45-17:39

1 stop21h 54m

Miami

Sun 15/3

18:15-07:45

2 stops47h 30m

$2,014

Flights are sorted by cheapest return flights first.

Deals found on 10/11

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 $765). Flying from Australia to Key Largo in June is currently the most expensive (average of $1,475). 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.

What is the cheapest time of day to fly from AU to KE9?

Find hourly flight availability from Australia to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 November 2025.

It’s typically best to fly out from Australia to Key Largo in the evening. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from Australia to Key Largo?

Use this chart to determine the cheapest time to fly return from Australia to Key Largo. Price data was last updated on 10 November 2024.

Travellers seeking maximum savings on their Australia to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 November 2025.
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
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air New Zealand
8.0
Very Good
526 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Qantas Airways
7.5
Good
933 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Qatar Airways
7.4
Good
3,660 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
United Airlines
7.4
Good
9,015 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.
Air Canada
7.1
Good
10,443 reviews
Air New Zealand
8.0
Very Good
526 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.5

Food

7.4

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - BNE

I had no worries going through customs in Canada but in New Zealand there were two machines and it beeped on me. Something on my side. There was nothing on my side. I lifted my top to show, i had a fabric belt tied around my skirt, maybe that which wasn’t knotted is what triggered. Shrug. I do wonder what that was that had me patted lightly with a guard in plastic gloves. so it goes.

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 26h 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 Air New Zealand. According to our data, you can fly for as low as $933. Users have also found prices from $1,405 and $1,671 on Qatar Airways and Cathay Pacific, respectively.

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

    Most travellers choose Melbourne - Miami, Perth - Miami or Sydney Kingsford Smith - 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 $765). Flying from Australia to Key Largo in June is currently the most expensive (average of $1,475). 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

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Alternative routes for Australia to Key Largo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Australia to Key Largo

Discover the top 10 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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$999Average$2,087FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,141Average$1,204FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,251Average$1,964FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,486Average$2,733FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,533Average$1,922FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,557Average$2,632FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
American AirlinesCheapest$1,696Average$2,539FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Japan AirlinesCheapest$1,919Average$2,505FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Singapore AirlinesCheapest$2,006Average$2,273FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qatar AirwaysCheapest$2,051Average$2,500FlexibilityNo 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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