$757+ 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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
30 Aug — 6 Sep1
1 adult

Flights to Key Largo in 2025

Find the latest flights to Key Largo in 2025, 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 August 2025.

Return from

$1,579

One-way from

$777

Popular in

December

Cheapest in

March

Average price

$1,815
Air New Zealand
  • Air New Zealand
  • 7/11-24/11
  • 4 total stops
  • 60h 30m total
  • Sydney to Miami
15/10
  • 15/10
  • 3 total stops
  • 46h 11m total
  • Sydney to Key Largo
Highest demand for flights based on searches. 15% potential increase in price ($605 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($131 potential savings vs. average return price).
Average for return flights in August 2025

Find flight deals to Key Largo

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 August 2025.

Fri 7/1111:45SYD - MIA
2 stops26h 15mAir New Zealand
Mon 24/1106:30MIA - SYD
2 stops34h 15mAir New Zealand
Deal found 24/8$1,579
Sat 1/1121:40SYD - MIA
2 stops36h 06mAlaska Airlines
Fri 14/1118:46MIA - SYD
2 stops32h 59mAlaska Airlines
Deal found 23/8$1,664
Sat 8/1121:40SYD - MIA
2 stops36h 06mAlaska Airlines
Mon 24/1118:30MIA - SYD
2 stops57h 15mAlaska Airlines
Deal found 24/8$1,710
Fri 17/1021:40SYD - MIA
2 stops34h 49mAlaska Airlines
Mon 20/1018:46MIA - SYD
2 stops57h 59mAlaska Airlines
Deal found 25/8$1,740
Mon 29/909:10SYD - MIA
2 stops23h 16mAmerican Airlines
Wed 15/1016:51MIA - SYD
1 stop24h 14mAmerican Airlines
Deal found 23/8$1,746
Wed 17/909:10SYD - MIA
1 stop25h 09mAmerican Airlines
Sun 19/1014:52MIA - SYD
1 stop26h 13mAmerican Airlines
Deal found 24/8$1,756
Mon 22/909:10SYD - MIA
1 stop20h 33mAmerican Airlines
Mon 29/910:06MIA - SYD
1 stop30h 59mAmerican Airlines
Deal found 25/8$1,775

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 August 2025.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 7/11

11:45-22:00

2 stops26h 15m

Miami

Mon 24/11

06:30-08:45

2 stops34h 15m

$1,579

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 18/9

21:40-17:45

2 stops34h 05m

Miami

Sun 21/9

18:45-19:45

2 stops35h 00m

$1,662

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 1/11

21:40-18:46

2 stops36h 06m

Miami

Fri 14/11

18:46-19:45

2 stops32h 59m

$1,664

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 8/11

21:40-17:46

2 stops36h 06m

Miami

Mon 24/11

18:30-19:45

2 stops57h 15m

$1,710

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 17/10

21:40-17:29

2 stops34h 49m

Miami

Mon 20/10

18:46-19:45

2 stops57h 59m

$1,740

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 29/9

09:10-18:26

2 stops23h 16m

Miami

Wed 15/10

16:51-08:05

1 stop24h 14m

$1,746

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 17/9

09:10-20:19

1 stop25h 09m

Miami

Sun 19/10

16:51-08:05

1 stop24h 14m

$1,756

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 15/9

09:10-18:37

1 stop23h 27m

Miami

Mon 22/9

10:06-07:05

1 stop30h 59m

$1,756

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 17/9

16:20-17:45

2 stops39h 25m

$757

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 15/10

17:20-00:31

3 stops46h 11m

$777

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 15 results
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 22 August 2025.

To ensure you get the cheapest price possible for a flight to Key Largo, you should look to book at least 72 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 23 hours 45 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.

When is the cheapest time to fly to Key Largo?

Use this chart to determine the cheapest time to fly return from Sydney to Key Largo. Price data was last updated on 13 October 2024.

Users looking for the lowest fares to Key Largo should consider flying on Sunday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Tuesday afternoons, when prices are usually at their highest.

What are the cheapest airlines that fly to Key Largo?

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

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 August 2025.
Read reviews from past customers who have flown Air New Zealand, Delta, andQantas Airways to the United States. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.
8.0
Very Good

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Comfort

8.0

Entertainment

7.4

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
6.0
Good

Anonymous,July 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

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, Delta 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 $699, however they can be found for as little as $455.

  • 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 21 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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