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$1,091+ Cheap flights to Key Largo

— MIA
17 Oct — 24 Oct1
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

Thu 15/1010:20 -
2 stops50h 57m
Tue 20/1008:15 -
2 stops33h 05m
Deal found 12/9$1,282
Mon 19/1010:20 -
2 stops26h 57m
Mon 26/1008:00 -
2 stops33h 35m
Deal found 11/9$1,285
Mon 5/1010:20 -
1 stop21h 54m
Mon 19/1008:15 -
2 stops33h 05m
Deal found 12/9$1,302
Wed 28/1010:20 -
2 stops40h 56m
Wed 18/1113:25 -
2 stops28h 10m
Deal found 12/9$1,315
Mon 5/1010:20 -
2 stops50h 57m
Wed 21/1008:15 -
2 stops33h 05m
Deal found 16/9$1,329

Find flight deals to Key Largo

Return from

$1,282

One-way from

$1,091

Popular in

January

Cheapest in

February

Average price

$1,857
Air Canada
  • Air Canada
  • 15/10-20/10
  • 4 total stops
  • 84h 02m total
  • Sydney to Miami
Search Deals
27/10-31/12
  • 27/10-31/12
  • 2 total stops
  • 29h 24m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($180 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($51 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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 Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Wed 10/2

15:50-16:25

1 stop40h 35m

Miami

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,104

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Mon 9/11

10:40-18:40

2 stops24h 00m

Miami

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,263

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Wed 20/1

10:40-09:24

2 stops38h 44m

Miami

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,268

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Tue 29/9

09:15-00:55

2 stops29h 40m

Miami

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,270

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Mon 5/10

10:20-17:14

1 stop21h 54m

Miami

Mon 19/10

08:15-08:20

2 stops33h 05m

$1,326

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Thu 15/10

10:20-22:17

2 stops26h 57m

Miami

Mon 26/10

08:00-08:35

3 stops33h 35m

$1,329

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Mon 18/1

11:20-12:21

3 stops41h 01m

Miami

Wed 27/1

13:15-09:35

2 stops28h 20m

$1,395

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Wed 14/10

10:20-22:17

3 stops50h 57m

Miami

Wed 21/10

08:15-08:20

2 stops33h 05m

$1,395

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Fri 5/2

11:20-12:21

3 stops41h 01m

Miami

Fri 12/2

13:15-09:35

2 stops28h 20m

$1,469

SydneyMiami

SYD Sydney Kingsford Smith - MIA Miami

SYDMIA

Sydney Kingsford Smith

Wed 11/11

09:15-22:15

2 stops29h 00m

Miami

Mon 16/11

16:58-07:00

1 stop22h 02m

$1,675

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 20 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

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 20 hours 26 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 $1,174
Air New Zealand
Air New Zealand
From $1,424
American Airlines
American Airlines
From $1,555
Air Canada
Air Canada
From $1,159

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

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

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

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
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Air New Zealand
8.0
Very Good
669 reviews
Air New Zealand
8.0
Very Good
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Qantas Airways
7.5
Good
1,099 reviews
Air New Zealand
8.0
Very Good
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
United Airlines
7.4
Good
10,214 reviews
Air New Zealand
8.0
Very Good
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
American Airlines
7.1
Good
12,076 reviews
Air New Zealand
8.0
Very Good
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Air Canada
7.1
Good
11,640 reviews
Air New Zealand
8.0
Very Good
669 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.5

Entertainment

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

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 $2,936, however they can be found for as little as $123.

  • 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 (20 hours 26 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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