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$1,040+ 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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
20 Apr — 27 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 21 March 2026.

Mon 27/409:20
SYD
-
MIA
1 stop22h 10m
Air Canada
Mon 11/508:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 20/3$1,333
Wed 11/1111:20
SYD
-
MIA
2 stops51h 09m
Air Canada
Thu 19/1108:00
MIA
-
SYD
2 stops33h 35m
Air Canada
Deal found 20/3$1,339
Tue 10/1111:20
SYD
-
MIA
2 stops27h 09m
Air Canada
Wed 18/1121:05
MIA
-
SYD
2 stops44h 30m
Air Canada
Deal found 19/3$1,351
Mon 27/409:20
SYD
-
MIA
1 stop22h 10m
Air Canada
Sun 10/518:00
MIA
-
SYD
2 stops47h 20m
Air Canada
Deal found 17/3$1,354
Mon 18/509:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Wed 27/508:05
MIA
-
SYD
2 stops33h 15m
Air Canada
Deal found 21/3$1,356
Mon 4/509:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Mon 11/508:15
MIA
-
SYD
3 stops33h 05m
Air Canada
Deal found 20/3$1,368
Mon 1/609:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Tue 23/607:15
MIA
-
SYD
2 stops34h 05m
Air Canada
Deal found 17/3$1,402
Sun 3/509:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Sun 10/518:00
MIA
-
SYD
2 stops47h 20m
Air Canada
Deal found 19/3$1,404
Mon 1/609:20
SYD
-
MIA
2 stops26h 57m
Air Canada
Sun 21/607:15
MIA
-
SYD
2 stops58h 05m
Air Canada
Deal found 17/3$1,407

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 21 March 2026.

Return from

$1,333

One-way from

$1,040

Popular in

January

Cheapest in

February

Average price

$1,708
Air Canada
  • Air Canada
  • 27/4-11/5
  • 3 total stops
  • 55h 15m total
  • Sydney to Miami
Search Deals
28/4
  • 28/4
  • 3 total stops
  • 29h 50m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($259 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($75 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 21 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

Wed 22/4

09:20-17:42

1 stop22h 22m

Miami

Sat 25/4

21:05-07:20

2 stops68h 15m

$1,411

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 21/4

09:20-11:27

2 stops40h 07m

Miami

Tue 28/4

12:25-07:20

2 stops52h 55m

$1,414

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 18/5

07:00-17:12

2 stops24h 12m

Miami

Wed 27/5

08:05-07:20

3 stops33h 15m

$1,468

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 4/6

09:20-22:17

3 stops50h 57m

Miami

Thu 18/6

07:15-07:20

2 stops34h 05m

$1,493

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 24/8

10:20-22:39

2 stops26h 19m

Miami

Sat 29/8

15:59-06:55

2 stops48h 56m

$1,759

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 27/4

09:30-22:28

3 stops26h 58m

Miami

Sun 10/5

16:52-07:00

2 stops24h 08m

$1,765

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 22/6

10:20-07:39

1 stop35h 19m

Miami

Wed 1/7

16:53-07:00

2 stops24h 07m

$1,765

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 2/5

09:10-15:56

1 stop20h 46m

Miami

Sat 9/5

21:55-07:05

1 stop43h 10m

$1,802

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 18/4

09:20-22:17

2 stops26h 57m

Miami

Sat 25/4

08:00-07:20

3 stops33h 20m

$1,841

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 16/4

09:15-05:27

2 stops34h 12m

Miami

Thu 23/4

18:30-06:50

1 stop22h 20m

$1,843

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 13 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 21 hours 52 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 $1,242
Air Canada
Air Canada
From $1,249
Air New Zealand
Air New Zealand
From $1,363
Qatar Airways
Qatar Airways
From $1,898

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 21 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
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air New Zealand
8.0
Very Good
616 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Qantas Airways
7.5
Good
1,006 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
United Airlines
7.4
Good
9,452 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
American Airlines
7.1
Good
11,488 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.
Air Canada
7.1
Good
10,828 reviews
Air New Zealand
8.0
Very Good
616 reviews
Check prices

Overall

8.0

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Food

7.4

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Debra,Mar 2026

HNL - AKL

My seat was very comfortable. The movies were good. The food was delicious. It ran on time.

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 $551, however they can be found for as little as $271.

  • 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 (21 hours 52 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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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Key Largo.

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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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