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$924+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
23 Mar — 30 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 21 February 2026.

Wed 18/317:45
SYD
-
MIA
2 stops31h 49m
Multiple Airlines
Wed 25/305:05
MIA
-
SYD
2 stops35h 20m
Multiple Airlines
Deal found 18/2$1,592
Thu 26/209:55
SYD
-
MIA
2 stops28h 04m
Air New Zealand
Mon 9/310:22
MIA
-
SYD
2 stops32h 53m
Air New Zealand
Deal found 21/2$1,601
Thu 26/211:20
SYD
-
MIA
2 stops23h 57m
American Airlines
Wed 11/317:30
MIA
-
SYD
2 stops24h 30m
American Airlines
Deal found 19/2$1,735
Mon 9/311:20
SYD
-
MIA
1 stop22h 33m
American Airlines
Mon 16/317:30
MIA
-
SYD
2 stops24h 30m
American Airlines
Deal found 18/2$1,737
Wed 18/311:20
SYD
-
MIA
1 stop23h 54m
Qantas Airways
Wed 25/309:04
MIA
-
SYD
1 stop32h 56m
Qantas Airways
Deal found 18/2$1,752
Mon 29/609:15
SYD
-
MIA
1 stop34h 59m
Delta
Tue 7/718:30
MIA
-
SYD
1 stop22h 20m
Delta
Deal found 18/2$1,762
Wed 25/311:20
SYD
-
MIA
2 stops23h 25m
American Airlines
Fri 3/413:40
MIA
-
SYD
1 stop27h 25m
American Airlines
Deal found 18/2$1,812
Sun 11/1010:10
SYD
-
MIA
1 stop25h 12m
American Airlines
Mon 19/1015:57
MIA
-
SYD
2 stops25h 08m
American Airlines
Deal found 17/2$1,815
Sun 21/609:10
SYD
-
MIA
1 stop33h 50m
American Airlines
Sun 5/716:35
MIA
-
SYD
1 stop24h 20m
American Airlines
Deal found 18/2$1,822
Thu 19/311:20
SYD
-
MIA
1 stop25h 03m
Qantas Airways
Thu 26/309:04
MIA
-
SYD
1 stop32h 56m
Qantas Airways
Deal found 17/2$1,826

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 February 2026.

Return from

$1,592

One-way from

$924

Popular in

January

Cheapest in

August

Average price

$1,606
18/3-25/3
  • 18/3-25/3
  • 4 total stops
  • 67h 09m total
  • Sydney to Miami
Search Deals
11/5
  • 11/5
  • 3 total stops
  • 56h 05m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($254 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 21 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 22/6

09:15-06:14

1 stop34h 59m

Miami

Tue 7/7

18:30-06:50

1 stop22h 20m

$1,762

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/3

09:40-17:19

1 stop22h 39m

Miami

Wed 25/3

10:26-07:25

2 stops29h 59m

$1,762

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 29/6

09:15-06:14

1 stop34h 59m

Miami

Wed 8/7

07:15-06:50

2 stops33h 35m

$1,762

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

11:20-21:27

2 stops25h 07m

Miami

Fri 3/4

08:50-08:05

2 stops32h 15m

$1,812

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/3

11:20-18:53

1 stop22h 33m

Miami

Sun 29/3

20:39-08:05

2 stops44h 26m

$1,812

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 19/3

11:20-20:27

2 stops24h 07m

Miami

Thu 26/3

15:36-09:00

2 stops26h 24m

$1,832

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 29/6

09:15-06:14

1 stop34h 59m

Miami

Thu 9/7

06:50-06:50

2 stops34h 00m

$1,834

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 29/6

09:15-06:14

1 stop34h 59m

Miami

Fri 10/7

14:30-06:50

2 stops26h 20m

$1,834

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 11/5

11:00-19:22

2 stops46h 22m

$987

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/3

09:55-22:15

2 stops27h 20m

$1,024

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 15 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 20 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 22 hours 48 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 $1,256
Air New Zealand
Air New Zealand
From $1,420
Qatar Airways
Qatar Airways
From $1,899

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 February 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
593 reviews
Check prices

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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
995 reviews
Air New Zealand
8.0
Very Good
593 reviews
Check prices

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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
9,336 reviews
Air New Zealand
8.0
Very Good
593 reviews
Check prices

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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
7.2
Good
11,336 reviews
Air New Zealand
8.0
Very Good
593 reviews
Check prices

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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
10,734 reviews
Air New Zealand
8.0
Very Good
593 reviews
Check prices

Food

7.4

Crew

8.5

Boarding

8.2

Comfort

8.0

Overall

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 $208, 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 (22 hours 48 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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