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$729+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
24 Aug — 31 Aug1
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 25 July 2026.

Tue 8/909:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Tue 15/907:55
MIA
-
SYD
2 stops57h 25m
Air Canada
Deal found 24/7$1,362
Wed 9/909:20
SYD
-
MIA
1 stop21h 54m
Air Canada
Wed 30/907:55
MIA
-
SYD
2 stops57h 25m
Air Canada
Deal found 24/7$1,366
Tue 11/809:20
SYD
-
MIA
2 stops50h 51m
Multiple Airlines
Tue 18/811:30
MIA
-
SYD
2 stops29h 50m
Multiple Airlines
Deal found 20/7$1,378
Thu 15/1010:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Thu 29/1013:15
MIA
-
SYD
2 stops28h 20m
Air Canada
Deal found 21/7$1,416
Thu 13/809:20
SYD
-
MIA
2 stops50h 56m
Air Canada
Mon 17/821:45
MIA
-
SYD
2 stops67h 35m
Air Canada
Deal found 24/7$1,422
Thu 15/1010:20
SYD
-
MIA
3 stops50h 57m
Multiple Airlines
Thu 29/1012:45
MIA
-
SYD
2 stops28h 50m
Multiple Airlines
Deal found 21/7$1,423
Thu 6/809:20
SYD
-
MIA
2 stops50h 51m
Air Canada
Sat 12/1220:55
MIA
-
SYD
2 stops68h 40m
Air Canada
Deal found 20/7$1,425

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 25 July 2026.

Return from

$1,360

One-way from

$729

Popular in

January

Cheapest in

February

Average price

$2,555
Air Canada
  • Air Canada
  • 18/1-1/2
  • 3 total stops
  • 69h 32m total
  • Sydney to Miami
Search Deals
11/8
  • 11/8
  • 3 total stops
  • 55h 15m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($202 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($55 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 25 July 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

Tue 8/9

09:20-22:17

2 stops50h 57m

Miami

Tue 15/9

07:55-07:20

2 stops57h 25m

$1,362

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 13/8

09:20-22:16

2 stops50h 56m

Miami

Mon 17/8

21:45-07:20

2 stops67h 35m

$1,422

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 9/8

10:20-17:34

1 stop21h 14m

Miami

Thu 27/8

16:58-07:00

2 stops48h 02m

$1,587

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 8/8

09:30-23:51

2 stops28h 21m

Miami

Sat 29/8

16:58-06:55

1 stop23h 57m

$1,660

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

10:20-17:29

1 stop21h 09m

Miami

Sun 16/8

16:58-06:55

1 stop23h 57m

$1,674

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 13/8

10:20-19:26

1 stop23h 06m

Miami

Mon 17/8

16:58-06:55

1 stop23h 57m

$1,675

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 23/11

10:40-17:41

1 stop23h 01m

Miami

Wed 3/3

08:00-08:30

1 stop32h 30m

$1,777

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 8/9

09:15-17:36

1 stop22h 21m

Miami

Tue 15/9

18:46-06:50

1 stop22h 04m

$1,777

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 15/10

11:20-20:58

1 stop24h 38m

Miami

Thu 29/10

08:53-07:00

1 stop31h 07m

$1,801

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

10:20-07:39

1 stop35h 19m

Miami

Sat 2/1

16:35-07:00

1 stop22h 25m

$1,814

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 17 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 9 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 $813
American Airlines
American Airlines
From $1,585
Air New Zealand
Air New Zealand
From $1,435
United Airlines
United Airlines
From $771

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from Sydney to Key Largo are Air Canada, United Airlines 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 25 July 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
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very Good
655 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,067 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
10,034 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,849 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air Canada
7.1
Good
11,382 reviews
Air New Zealand
8.0
Very Good
655 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.5

Entertainment

7.4

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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, Qantas Airways 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 $129, however they can be found for as little as $110.

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

    For those looking to save time traveling to Key Largo, Brisbane offers the quickest one-way flight (20 hours 20 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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Cheapflights makes it easy to find Key Largo flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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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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