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$886+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
25 Jun — 2 Jul1
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 26 May 2026.

Thu 16/709:20
SYD
-
MIA
2 stops26h 51m
Air Canada
Tue 21/708:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 25/5$1,233
Mon 12/1010:20
SYD
-
MIA
1 stop21h 54m
Air Canada
Thu 22/1008:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 25/5$1,234
Wed 3/609:20
SYD
-
MIA
1 stop21h 52m
Air Canada
Wed 17/607:15
MIA
-
SYD
2 stops34h 05m
Air Canada
Deal found 24/5$1,236
Thu 10/909:20
SYD
-
MIA
2 stops26h 57m
Air Canada
Thu 24/908:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 24/5$1,240
Tue 21/709:20
SYD
-
MIA
2 stops25h 28m
Air Canada
Tue 28/708:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 22/5$1,245
Mon 7/909:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Mon 21/913:10
MIA
-
SYD
2 stops52h 10m
Air Canada
Deal found 24/5$1,247
Wed 9/909:20
SYD
-
MIA
3 stops50h 57m
Air Canada
Mon 12/1018:10
MIA
-
SYD
1 stop23h 10m
Air Canada
Deal found 25/5$1,248
Tue 4/809:20
SYD
-
MIA
2 stops26h 51m
Air Canada
Tue 11/808:15
MIA
-
SYD
2 stops33h 05m
Air Canada
Deal found 21/5$1,254

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 26 May 2026.

Return from

$1,233

One-way from

$886

Popular in

January

Cheapest in

February

Average price

$1,817
Air Canada
  • Air Canada
  • 16/7-21/7
  • 4 total stops
  • 59h 56m total
  • Sydney to Miami
Search Deals
United Airlines
  • United Airlines
  • 4/6
  • 3 total stops
  • 27h 10m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($317 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 26 May 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

Thu 4/6

09:30-22:40

3 stops27h 10m

Miami

Sat 20/6

16:06-06:55

2 stops48h 49m

$1,435

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 21/7

10:20-17:29

1 stop21h 09m

Miami

Tue 28/7

08:00-06:55

1 stop32h 55m

$1,435

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 13/7

09:30-21:59

2 stops26h 29m

Miami

Wed 22/7

07:37-07:00

2 stops33h 23m

$1,435

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/6

10:20-17:29

1 stop21h 09m

Miami

Sat 20/6

16:06-06:55

2 stops48h 49m

$1,505

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/6

10:20-20:33

2 stops24h 13m

Miami

Wed 17/6

18:35-06:55

1 stop22h 20m

$1,523

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 22/6

09:15-09:33

2 stops38h 18m

Miami

Wed 1/7

10:40-06:50

2 stops30h 10m

$1,881

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 14/7

09:15-00:55

2 stops29h 40m

Miami

Tue 21/7

19:17-06:50

1 stop21h 33m

$1,883
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 21/7

09:15-18:07

1 stop22h 52m

Miami

Tue 28/7

19:17-06:50

1 stop21h 33m

$1,883

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 7/7

09:15-18:07

1 stop22h 52m

Miami

Tue 14/7

07:00-06:50

2 stops33h 50m

$1,883
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 4/6

09:30-22:40

3 stops27h 10m

$886

Flights are sorted by cheapest return flights first.

Deals found on 21/5

Showing 1-10 of 16 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

How long is the flight to Key Largo?

On average, a flight from Sydney to Key Largo takes 21 hours 14 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 American Airlines.

Qantas Airways
Qantas Airways
From $1,222
Air New Zealand
Air New Zealand
From $1,398
American Airlines
American Airlines
From $1,546
United Airlines
United Airlines
From $596

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 26 May 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
648 reviews
Check prices

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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
1,042 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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
9,749 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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
11,630 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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
11,084 reviews
Air New Zealand
8.0
Very Good
648 reviews
Check prices

Boarding

8.2

Entertainment

7.4

Comfort

8.0

Food

7.4

Overall

8.0

Crew

8.5

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 $89, however they can be found for as little as $84.

  • 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 (21 hours 14 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 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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