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$700+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
11 May — 18 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 11 April 2026.

Wed 22/406:00
SYD
-
MIA
3 stops42h 12m
Multiple Airlines
Sat 25/408:42
MIA
-
SYD
3 stops37h 08m
Multiple Airlines
Deal found 8/4$1,514
Tue 12/513:15
SYD
-
MIA
3 stops38h 05m
Multiple Airlines
Tue 19/511:23
MIA
-
SYD
3 stops44h 47m
Multiple Airlines
Deal found 6/4$1,633
Sun 24/506:00
SYD
-
MIA
3 stops61h 33m
Multiple Airlines
Sun 31/508:10
MIA
-
SYD
3 stops48h 00m
Multiple Airlines
Deal found 9/4$1,715
Mon 11/513:15
SYD
-
MIA
3 stops54h 23m
Multiple Airlines
Mon 18/506:00
MIA
-
SYD
3 stops40h 05m
Multiple Airlines
Deal found 10/4$1,736
Mon 27/417:50
SYD
-
MIA
2 stops27h 32m
Multiple Airlines
Sun 10/506:00
MIA
-
SYD
2 stops35h 30m
Multiple Airlines
Deal found 10/4$1,813
Sun 3/509:10
SYD
-
MIA
2 stops29h 39m
Multiple Airlines
Tue 12/508:10
MIA
-
SYD
2 stops32h 55m
Multiple Airlines
Deal found 7/4$1,825
Tue 5/517:50
SYD
-
MIA
2 stops36h 37m
Multiple Airlines
Tue 12/511:23
MIA
-
SYD
2 stops30h 07m
Multiple Airlines
Deal found 7/4$1,861
Mon 25/509:10
SYD
-
MIA
2 stops34h 23m
Multiple Airlines
Mon 1/609:15
MIA
-
SYD
2 stops32h 15m
Multiple Airlines
Deal found 10/4$1,902
Tue 26/513:15
SYD
-
MIA
3 stops30h 18m
Multiple Airlines
Sat 30/509:15
MIA
-
SYD
3 stops36h 35m
Multiple Airlines
Deal found 7/4$1,907
Thu 30/409:15
SYD
-
MIA
2 stops38h 03m
Delta
Wed 13/516:05
MIA
-
SYD
2 stops24h 45m
Delta
Deal found 8/4$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 11 April 2026.

Return from

$1,514

One-way from

$700

Popular in

January

Cheapest in

February

Average price

$2,658
22/4-25/4
  • 22/4-25/4
  • 6 total stops
  • 79h 20m total
  • Sydney to Miami
Search Deals
9/5
  • 9/5
  • 3 total stops
  • 45h 18m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($262 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($77 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 11 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

$1,736

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 27/4

09:15-09:18

2 stops38h 03m

Miami

Sun 10/5

18:30-06:50

1 stop22h 20m

$1,965

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 30/4

09:15-20:48

2 stops25h 33m

Miami

Wed 13/5

07:39-06:50

1 stop33h 11m

$1,998
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 11/5

09:15-17:06

1 stop21h 51m

Miami

Mon 18/5

18:30-06:50

1 stop22h 20m

$2,002

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 24/5

09:15-06:55

1 stop35h 40m

Miami

Sun 31/5

06:33-06:50

2 stops34h 17m

$2,060

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 23/5

09:15-23:11

2 stops27h 56m

Miami

Sat 30/5

06:33-06:50

2 stops34h 17m

$2,087

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

09:15-20:59

2 stops25h 44m

Miami

Tue 22/12

10:20-08:30

2 stops30h 10m

$2,221

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 30/4

09:30-22:09

2 stops26h 39m

Miami

Wed 13/5

12:50-06:55

3 stops28h 05m

$2,412
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 3/6

13:20-05:33

3 stops30h 13m

$1,068

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 16/4

09:30-23:51

2 stops28h 21m

$1,123

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 18 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 10 April 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 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 United Airlines.

Qantas Airways
Qantas Airways
From $1,239
Air New Zealand
Air New Zealand
From $1,360
Air Canada
Air Canada
From $1,237
American Airlines
American Airlines
From $1,567

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 11 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
627 reviews
Check prices

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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
1,018 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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
9,565 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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
11,568 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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
10,915 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Overall

8.0

Crew

8.5

Food

7.4

Boarding

8.2

Comfort

8.0

Entertainment

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 $90, however they can be found for as little as $85.

  • 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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