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$899+ Cheap flights to Key Largo

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Key Largo
Explore the most affordable flight options available to Key Largo. Find the lowest fares based on data from user searches, with prices last updated on 14 March 2026.

Sun 1/1111:45
SYD
-
MIA
2 stops26h 05m
Air New Zealand
Mon 9/1108:45
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 10/3$1,615
Sat 31/1011:45
SYD
-
MIA
2 stops35h 02m
Air New Zealand
Sun 8/1106:20
MIA
-
SYD
2 stops36h 10m
Air New Zealand
Deal found 9/3$1,671
Fri 21/809:55
SYD
-
MIA
2 stops26h 44m
Air New Zealand
Fri 4/916:53
MIA
-
SYD
2 stops27h 47m
Air New Zealand
Deal found 13/3$1,759
Mon 1/609:10
SYD
-
MIA
1 stop25h 30m
American Airlines
Mon 15/616:40
MIA
-
SYD
2 stops24h 25m
American Airlines
Deal found 14/3$1,836
Mon 27/409:10
SYD
-
MIA
1 stop24h 06m
American Airlines
Mon 4/518:20
MIA
-
SYD
1 stop22h 45m
American Airlines
Deal found 13/3$1,850
Mon 4/511:55
SYD
-
MIA
2 stops24h 14m
Air New Zealand
Tue 2/608:00
MIA
-
SYD
2 stops34h 45m
Air New Zealand
Deal found 12/3$1,868
Wed 4/1107:45
SYD
-
MIA
2 stops30h 05m
Air New Zealand
Thu 12/1111:30
MIA
-
SYD
2 stops29h 15m
Air New Zealand
Deal found 13/3$1,874
Thu 5/1109:55
SYD
-
MIA
2 stops27h 55m
Air New Zealand
Fri 13/1111:30
MIA
-
SYD
2 stops31h 00m
Air New Zealand
Deal found 14/3$1,875
Sat 2/509:10
SYD
-
MIA
1 stop20h 46m
American Airlines
Tue 2/617:35
MIA
-
SYD
2 stops23h 30m
American Airlines
Deal found 12/3$1,910
Thu 14/509:10
SYD
-
MIA
1 stop20h 53m
Qantas Airways
Tue 28/717:30
MIA
-
SYD
1 stop23h 35m
Qantas Airways
Deal found 13/3$1,921

Find flight deals to Key Largo

Find the latest flights to Key Largo in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 14 March 2026.

Return from

$1,759

One-way from

$899

Popular in

January

Cheapest in

February

Average price

$1,715
Air New Zealand
  • Air New Zealand
  • 21/8-4/9
  • 4 total stops
  • 54h 31m total
  • Sydney to Miami
Search Deals
Air New Zealand
  • Air New Zealand
  • 6/5
  • 2 total stops
  • 26h 14m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($256 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($76 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Key Largo that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 14 March 2026.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/3

17:45-06:31

1 stop27h 46m

Miami

Sun 24/5

10:25-07:05

1 stop30h 40m

$2,345
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 4/5

09:10-19:46

2 stops24h 36m

Miami

Mon 18/5

18:20-07:05

1 stop22h 45m

$2,376

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 22/4

20:45-16:30

1 stop33h 45m

Miami

Sat 25/4

19:40-17:10

1 stop31h 30m

$2,601

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 15/4

20:45-16:30

1 stop33h 45m

Miami

Mon 20/4

19:40-17:10

1 stop31h 30m

$2,615

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 4/5

14:50-16:30

1 stop39h 40m

Miami

Mon 18/5

19:40-06:10

1 stop44h 30m

$2,670

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 6/4

14:50-16:40

1 stop39h 50m

Miami

Thu 7/5

23:30-06:10

1 stop40h 40m

$2,835

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

21:40-17:25

1 stop34h 45m

Miami

Fri 3/4

19:40-18:10

1 stop31h 30m

$2,862
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 19/3

07:05-00:06

3 stops32h 01m

$1,408

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 13/7

09:15-17:48

1 stop22h 33m

$1,459

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 14/7

09:15-06:14

1 stop34h 59m

$1,459

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo 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 to Key Largo

When is the best time to book a flight to Key Largo?

Use this chart to determine the optimal time to book a return flight from Sydney to Key Largo. Price data was last updated on 6 March 2026.

To ensure you get the cheapest price possible for a flight to Key Largo, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Key Largo?

On average, a flight from Sydney to Key Largo takes 20 hours 53 minutes. Flights to Key Largo from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Key Largo?

The most popular airlines flying from Sydney to Key Largo are Qantas Airways, Air New Zealand and Air Canada.

Qantas Airways
Qantas Airways
From $1,246
Air Canada
Air Canada
From $1,253
Air New Zealand
Air New Zealand
From $1,368
Qatar Airways
Qatar Airways
From $1,906

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from Sydney to Key Largo are Delta, United Airlines and Air Canada.

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 41.0 - 252.0 mm per month. September is typically the wettest month, when rainfall can reach 252.0 mm. January is typically the driest time to visit Key Largo when rainfall is around 41.0 mm.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

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 14 March 2026.
Read reviews from past customers who have flown Air New Zealand,Qantas Airways, andUnited Airlines to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.
Air New Zealand
8.0
Very Good
610 reviews
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.
Qantas Airways
7.5
Good
1,004 reviews
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.
United Airlines
7.4
Good
9,424 reviews
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.
American Airlines
7.1
Good
11,465 reviews
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.
Air Canada
7.1
Good
10,800 reviews
Air New Zealand
8.0
Very Good
610 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

8.0

Entertainment

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.

FAQs about flying to Key Largo

  • Can I find cheaper flights to Key Largo if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Key Largo on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Key Largo?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Key Largo.

  • How much is a return flight to Key Largo?

    A return flight to Key Largo will typically cost around $260, however they can be found for as little as $169.

  • Where does the fastest flight to Key Largo depart from?

    For those looking to save time traveling to Key Largo, Sydney Kingsford Smith offers the quickest one-way flight (20 hours 53 minutes).

  • Does Miami have car hire?

    Yes. Those touching down at Miami can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Miami?

    Yes. Miami has hotels nearby for those requiring accommodations. Miami International Airport Hotel is the closest property to Miami (0.0 km away from Miami).

See more FAQs

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Yes! Cheapflights helps users easily find flights to Key Largo with no change fees.

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Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Key Largo today and book when you’re ready!

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