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$1,020+ 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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
17 Mar — 24 Mar1
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 15 February 2026.

Wed 4/309:55
SYD
-
MIA
2 stops28h 04m
Air New Zealand
Wed 18/310:22
MIA
-
SYD
2 stops33h 08m
Air New Zealand
Deal found 11/2$1,705
Mon 23/211:20
SYD
-
MIA
2 stops23h 57m
American Airlines
Sun 8/319:41
MIA
-
SYD
1 stop22h 19m
American Airlines
Deal found 12/2$1,732
Wed 6/509:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Tue 26/518:00
MIA
-
SYD
2 stops47h 20m
Air Canada
Deal found 13/2$1,742
Mon 9/311:20
SYD
-
MIA
2 stops24h 17m
American Airlines
Mon 16/313:40
MIA
-
SYD
1 stop28h 20m
American Airlines
Deal found 13/2$1,743
Wed 4/311:20
SYD
-
MIA
1 stop27h 01m
American Airlines
Wed 18/319:41
MIA
-
SYD
1 stop22h 19m
American Airlines
Deal found 12/2$1,745
Mon 23/214:15
SYD
-
MIA
1 stop32h 20m
Delta
Sun 8/310:26
MIA
-
SYD
2 stops28h 39m
Delta
Deal found 14/2$1,759
Tue 28/409:55
SYD
-
MIA
2 stops35h 59m
Air New Zealand
Thu 7/516:52
MIA
-
SYD
2 stops25h 53m
Air New Zealand
Deal found 13/2$1,769
Tue 1/917:30
SYD
-
MIA
2 stops26h 09m
American Airlines
Sun 13/914:37
MIA
-
SYD
2 stops26h 28m
American Airlines
Deal found 12/2$1,773

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 15 February 2026.

Return from

$1,705

One-way from

$1,020

Popular in

January

Cheapest in

August

Average price

$1,596
Air New Zealand
  • Air New Zealand
  • 4/3-18/3
  • 4 total stops
  • 61h 12m total
  • Sydney to Miami
Search Deals
13/3
  • 13/3
  • 3 total stops
  • 32h 56m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($247 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($70 potential savings vs. average return price).
Search Deals
Average for return flights in February 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 15 February 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

11:20-18:53

1 stop22h 33m

Miami

Mon 16/3

08:00-09:00

1 stop34h 00m

$1,732

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/3

11:20-22:21

1 stop27h 01m

Miami

Wed 18/3

19:41-09:00

1 stop22h 19m

$1,745

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 16/3

11:20-21:23

1 stop25h 03m

Miami

Mon 23/3

19:41-09:00

1 stop22h 19m

$1,753

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

11:20-22:21

1 stop26h 01m

Miami

Fri 3/4

08:50-08:05

2 stops32h 15m

$1,817

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 13/3

11:20-20:20

2 stops24h 00m

Miami

Sat 21/3

22:02-06:55

1 stop41h 53m

$1,818

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 12/3

13:15-10:36

2 stops36h 21m

Miami

Fri 20/3

07:05-07:30

2 stops33h 25m

$1,831

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 12/3

13:15-22:26

2 stops24h 11m

Miami

Sat 21/3

08:05-07:25

1 stop32h 20m

$1,831

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 28/4

12:00-20:59

2 stops22h 59m

Miami

Thu 7/5

16:45-07:05

1 stop24h 20m

$1,835

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 13/3

06:20-00:16

3 stops32h 56m

$1,020

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/2

11:45-21:59

2 stops26h 14m

$1,030

Flights are sorted by cheapest return flights first.

Deals found on 14/2

Showing 1-10 of 18 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 6 February 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 23 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 New Zealand and Air Canada.

Qantas Airways
Qantas Airways
From $1,381
Air Canada
Air Canada
From $1,253
Air New Zealand
Air New Zealand
From $1,416
Qatar Airways
Qatar Airways
From $1,893

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 15 February 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
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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
582 reviews
Air New Zealand
8.0
Very Good
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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
8,206 reviews
Air New Zealand
8.0
Very Good
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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
989 reviews
Air New Zealand
8.0
Very Good
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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
9,294 reviews
Air New Zealand
8.0
Very Good
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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
10,720 reviews
Air New Zealand
8.0
Very Good
582 reviews
Check prices

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.4

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, 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 $258, however they can be found for as little as $168.

  • 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 (23 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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