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$697+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
20 Feb — 27 Feb1
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 January 2026.

Sat 25/411:55
SYD
-
MIA
2 stops24h 33m
Air New Zealand
Wed 13/516:53
MIA
-
SYD
2 stops25h 52m
Air New Zealand
Deal found 20/1$1,591
Tue 10/209:55
SYD
-
MIA
2 stops37h 56m
Air New Zealand
Mon 16/206:15
MIA
-
SYD
2 stops36h 15m
Air New Zealand
Deal found 20/1$1,661
Tue 10/311:45
SYD
-
MIA
2 stops34h 42m
Air New Zealand
Mon 16/306:15
MIA
-
SYD
2 stops37h 15m
Air New Zealand
Deal found 20/1$1,668
Sun 25/109:55
SYD
-
MIA
2 stops27h 59m
Air New Zealand
Fri 13/206:15
MIA
-
SYD
2 stops36h 15m
Air New Zealand
Deal found 20/1$1,732
Mon 4/509:55
SYD
-
MIA
2 stops36h 34m
Air New Zealand
Mon 11/510:50
MIA
-
SYD
2 stops41h 20m
Air New Zealand
Deal found 20/1$1,736
Tue 3/319:15
SYD
-
MIA
2 stops42h 44m
Air New Zealand
Wed 11/309:00
MIA
-
SYD
2 stops34h 30m
Air New Zealand
Deal found 20/1$1,781
Sun 1/209:55
SYD
-
MIA
2 stops27h 59m
Air New Zealand
Sun 15/208:35
MIA
-
SYD
2 stops41h 30m
Air New Zealand
Deal found 19/1$1,802
Wed 25/311:45
SYD
-
MIA
2 stops38h 10m
Air New Zealand
Fri 3/409:00
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 19/1$1,824
Mon 16/309:55
SYD
-
MIA
2 stops36h 32m
Air New Zealand
Mon 23/310:22
MIA
-
SYD
2 stops33h 08m
Air New Zealand
Deal found 20/1$1,924
Sun 13/918:55
SYD
-
MIA
2 stops40h 55m
Air New Zealand
Mon 21/917:00
MIA
-
SYD
2 stops27h 40m
Air New Zealand
Deal found 20/1$1,949
Mon 9/311:20
SYD
-
MIA
2 stops39h 05m
Air Canada
Mon 16/318:15
MIA
-
SYD
2 stops47h 20m
Air Canada
Deal found 19/1$1,953

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 January 2026.

Return from

$1,591

One-way from

$697

Popular in

January

Cheapest in

August

Average price

$2,611
Air New Zealand
  • Air New Zealand
  • 25/4-13/5
  • 4 total stops
  • 50h 25m total
  • Sydney to Miami
Search Deals
10/2
  • 10/2
  • 3 total stops
  • 37h 10m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($215 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($54 potential savings vs. average return price).
Search Deals
Average for return flights in January 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 January 2026.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:20-11:25

2 stops39h 05m

Miami

Mon 16/3

08:00-08:35

3 stops33h 35m

$2,155

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 10/3

17:00-11:40

3 stops33h 40m

Miami

Mon 16/3

21:45-07:25

3 stops42h 40m

$2,170

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/3

21:15-21:35

2 stops39h 20m

Miami

Tue 31/3

10:35-20:10

2 stops42h 35m

$2,192

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 10/3

10:20-00:16

2 stops28h 56m

Miami

Mon 16/3

08:00-08:35

3 stops33h 35m

$2,204

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 1/2

19:15-17:39

2 stops38h 24m

Miami

Sun 15/2

13:40-09:00

1 stop27h 20m

$2,218

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/3

07:45-22:15

2 stops29h 30m

Miami

Tue 31/3

18:31-08:05

1 stop22h 34m

$2,286

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/3

21:15-21:35

2 stops39h 20m

Miami

Sun 29/3

22:30-20:10

2 stops54h 40m

$2,317

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/3

11:20-21:23

1 stop25h 03m

Miami

Tue 31/3

13:40-08:05

1 stop27h 25m

$2,353

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 24/6

09:15-17:48

1 stop22h 33m

Miami

Tue 28/7

10:20-06:35

2 stops30h 15m

$2,380

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 23/6

09:15-17:48

1 stop22h 33m

Miami

Tue 28/7

08:00-06:35

1 stop32h 35m

$2,380

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 20 results
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 16 January 2026.

To ensure you get the cheapest price possible for a flight to Key Largo, you should look to book at least 72 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 22 hours 33 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 Canada and Air New Zealand.

Qantas Airways
Qantas Airways
From $1,479
Air Canada
Air Canada
From $1,318
Air New Zealand
Air New Zealand
From $1,489
Qatar Airways
Qatar Airways
From $1,991

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 January 2026.
Read reviews from past customers who have flown Air New Zealand, Delta, andQantas Airways 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
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air New Zealand
8.0
Very Good
572 reviews
Air New Zealand
8.0
Very Good
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Delta
7.9
Good
8,087 reviews
Air New Zealand
8.0
Very Good
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qantas Airways
7.5
Good
973 reviews
Air New Zealand
8.0
Very Good
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
United Airlines
7.4
Good
9,188 reviews
Air New Zealand
8.0
Very Good
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air Canada
7.1
Good
10,644 reviews
Air New Zealand
8.0
Very Good
572 reviews
Check prices

Crew

8.5

Food

7.4

Comfort

8.0

Entertainment

7.4

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

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, Qantas Airways 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 $145, however they can be found for as little as $145.

  • 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 (22 hours 33 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 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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