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$825+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
1 May — 8 May1
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 1 April 2026.

Mon 11/513:15
SYD
-
MIA
3 stops54h 23m
Multiple Airlines
Mon 18/506:00
MIA
-
SYD
3 stops40h 05m
Multiple Airlines
Deal found 27/3$1,452
Tue 28/406:00
SYD
-
MIA
3 stops37h 05m
Multiple Airlines
Tue 5/511:23
MIA
-
SYD
3 stops34h 27m
Multiple Airlines
Deal found 29/3$1,617
Fri 15/513:15
SYD
-
MIA
3 stops54h 23m
Multiple Airlines
Fri 22/509:15
MIA
-
SYD
3 stops36h 35m
Multiple Airlines
Deal found 30/3$1,636
Mon 11/513:15
SYD
-
MIA
3 stops38h 05m
Multiple Airlines
Sun 17/506:00
MIA
-
SYD
3 stops39h 50m
Multiple Airlines
Deal found 31/3$1,654
Tue 12/513:15
SYD
-
MIA
3 stops38h 05m
Multiple Airlines
Tue 19/508:10
MIA
-
SYD
3 stops48h 00m
Multiple Airlines
Deal found 28/3$1,689
Sat 16/506:00
SYD
-
MIA
3 stops45h 20m
Multiple Airlines
Sat 23/506:00
MIA
-
SYD
3 stops39h 50m
Multiple Airlines
Deal found 31/3$1,772
Mon 27/417:50
SYD
-
MIA
2 stops32h 13m
Multiple Airlines
Sun 10/506:00
MIA
-
SYD
2 stops35h 30m
Multiple Airlines
Deal found 30/3$1,775
Wed 13/513:20
SYD
-
MIA
3 stops41h 07m
Multiple Airlines
Tue 26/508:10
MIA
-
SYD
3 stops48h 00m
Multiple Airlines
Deal found 29/3$1,785

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 1 April 2026.

Return from

$1,452

One-way from

$825

Popular in

January

Cheapest in

February

Average price

$2,733
11/5-18/5
  • 11/5-18/5
  • 6 total stops
  • 94h 28m total
  • Sydney to Miami
Search Deals
1/8
  • 1/8
  • 3 total stops
  • 45h 30m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($266 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($78 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 1 April 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

Mon 11/5

13:15-05:38

3 stops54h 23m

Miami

Mon 18/5

06:00-12:05

3 stops40h 05m

$1,452

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 28/4

09:15-17:14

1 stop21h 59m

Miami

Tue 5/5

07:04-06:50

2 stops33h 46m

$2,007

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 12/5

09:15-17:06

1 stop21h 51m

Miami

Tue 19/5

14:01-06:50

2 stops26h 49m

$2,010

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 11/5

09:15-17:06

1 stop21h 51m

Miami

Mon 18/5

08:10-06:50

1 stop32h 40m

$2,018
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/5

09:15-17:06

1 stop21h 51m

Miami

Thu 21/5

18:30-06:50

1 stop22h 20m

$2,062

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 4/5

09:15-00:54

2 stops29h 39m

Miami

Sat 16/5

10:35-06:50

2 stops30h 15m

$2,066

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 2/5

09:15-00:54

2 stops29h 39m

Miami

Sun 10/5

15:09-06:50

2 stops25h 41m

$2,079

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 15/5

09:15-06:55

1 stop35h 40m

Miami

Fri 22/5

08:10-06:50

1 stop32h 40m

$2,122
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 13/5

13:20-05:38

3 stops54h 18m

$1,094

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 18/5

13:15-07:00

3 stops55h 45m

$1,155

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 19 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 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 26 hours 44 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 $1,276
Air New Zealand
Air New Zealand
From $1,400
Air Canada
Air Canada
From $1,283
American Airlines
American Airlines
From $1,613

What are the cheapest airlines that fly to Key Largo?

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

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 1 April 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
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very Good
623 reviews
Air New Zealand
8.0
Very Good
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,016 reviews
Air New Zealand
8.0
Very Good
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,533 reviews
Air New Zealand
8.0
Very Good
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
American Airlines
7.1
Good
11,546 reviews
Air New Zealand
8.0
Very Good
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air Canada
7.1
Good
10,877 reviews
Air New Zealand
8.0
Very Good
623 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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 $566, however they can be found for as little as $278.

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

    For those looking to save time traveling to Key Largo, Melbourne offers the quickest one-way flight (25 hours 57 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.

Can Cheapflights notify me if prices for flights to Key Largo become cheaper?

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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