$920+ 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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
9 Nov — 16 Nov1
1 adult
1 adult, Economy

Find flight deals to Key Largo

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 10 October 2025.

Wed 12/1111:45SYD - MIA
2 stops24h 07mAir New Zealand
Mon 24/1106:30MIA - SYD
2 stops34h 15mAir New Zealand
Deal found 9/10$1,569
Wed 12/1111:45SYD - MIA
2 stops24h 07mAir New Zealand
Thu 27/1106:20MIA - SYD
2 stops34h 25mAir New Zealand
Deal found 10/10$1,632
Wed 12/1111:45SYD - MIA
2 stops26h 13mAir New Zealand
Wed 26/1109:00MIA - SYD
2 stops33h 30mAir New Zealand
Deal found 8/10$1,707
Tue 14/1009:55SYD - MIA
2 stops26h 18mAir New Zealand
Tue 21/1016:56MIA - SYD
2 stops24h 49mAir New Zealand
Deal found 8/10$1,771
Mon 10/1107:45SYD - MIA
2 stops28h 07mAir New Zealand
Mon 17/1106:30MIA - SYD
2 stops34h 15mAir New Zealand
Deal found 9/10$1,790
Mon 13/1018:20SYD - MIA
2 stops43h 25mAir New Zealand
Mon 27/1009:00MIA - SYD
2 stops34h 30mAir New Zealand
Deal found 10/10$1,837
Mon 3/1111:20SYD - MIA
1 stop22h 19mAir Canada
Sun 16/1108:00MIA - SYD
2 stops33h 35mAir Canada
Deal found 9/10$1,875
Mon 3/1111:20SYD - MIA
1 stop22h 19mAir Canada
Mon 10/1121:05MIA - SYD
2 stops44h 30mAir Canada
Deal found 10/10$1,901
Mon 10/1111:20SYD - MIA
1 stop22h 19mAir Canada
Mon 17/1121:05MIA - SYD
2 stops44h 30mAir Canada
Deal found 9/10$1,909
Mon 24/1111:45SYD - MIA
2 stops26h 13mAir New Zealand
Mon 1/1209:00MIA - SYD
2 stops33h 30mAir New Zealand
Deal found 10/10$1,911

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 10 October 2025.

Return from

$1,569

One-way from

$920

Popular in

December

Cheapest in

March

Average price

$2,062
Air New Zealand
  • Air New Zealand
  • 12/11-24/11
  • 4 total stops
  • 58h 22m total
  • Sydney to Miami
15/10
  • 15/10
  • 2 total stops
  • 39h 09m total
  • Sydney to Key Largo
Highest demand for flights based on searches. 15% potential increase in price ($579 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($122 potential savings vs. average return price).
Average for return flights in October 2025

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 10 October 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

Mon 24/11

11:20-11:39

2 stops40h 19m

Miami

Mon 1/12

18:40-06:55

1 stop44h 15m

$2,029

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 10/12

14:05-21:00

2 stops22h 55m

Miami

Wed 31/12

07:43-09:00

1 stop33h 17m

$2,151

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 9/12

21:40-17:34

2 stops35h 54m

Miami

Sat 27/12

07:25-19:45

2 stops44h 20m

$2,240

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/12

21:40-17:34

2 stops35h 54m

Miami

Sat 27/12

07:25-19:45

2 stops44h 20m

$2,292

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/12

21:40-17:34

2 stops35h 54m

Miami

Wed 31/12

07:25-19:45

2 stops44h 20m

$2,292

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 6/12

21:40-17:34

2 stops35h 54m

Miami

Fri 26/12

07:25-19:45

2 stops44h 20m

$2,292

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 9/12

21:40-16:00

2 stops34h 20m

Miami

Fri 26/12

07:25-19:45

2 stops44h 20m

$2,296

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 7/12

21:40-16:00

2 stops34h 20m

Miami

Sat 27/12

07:25-19:45

2 stops44h 20m

$2,336

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 7/12

21:40-17:34

2 stops35h 54m

Miami

Tue 30/12

07:25-19:45

2 stops44h 20m

$2,336

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 7/12

21:40-17:34

2 stops35h 54m

Miami

Wed 31/12

07:25-19:45

2 stops44h 20m

$2,336

Flights are sorted by cheapest return flights first.

Deals found on 10/10

Showing 1-10 of 19 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 3 October 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 24 hours 7 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 10 October 2025.
Read reviews from past customers who have flown Delta, Air New Zealand, 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.

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.
8.0
Very Good

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Sally,Oct 2025

ATH - JFK

Only negative outcome of this trip was 3 hour delay, but everything else was fine.

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 $480, however they can be found for as little as $324.

  • 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 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Key Largo by cabin class

Find flights to Key Largo, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Key Largo?

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.

Why should you use Cheapflights to find cheap flight tickets to Key Largo?

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.

Can Cheapflights find flights to Key Largo with no change fees?

Yes! Cheapflights helps users easily find flights to Key Largo with no change fees.

Can Cheapflights notify me if prices for flights to Key Largo become cheaper?

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.