Find flights
Airlines

$878+ 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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

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 25 November 2025.

Mon 15/1206:30SYD - MIA
3 stops30h 24mMultiple Airlines
Tue 20/113:01MIA - SYD
2 stops26h 24mMultiple Airlines
Deal found 22/11$2,085
Mon 1/1216:00SYD - MIA
2 stops46h 29mAir Canada
Mon 31/808:10MIA - SYD
2 stops33h 10mAir Canada
Deal found 24/11$2,651
Thu 11/1221:40SYD - MIA
2 stops35h 54mAlaska Airlines
Wed 17/1217:00MIA - SYD
2 stops34h 45mAlaska Airlines
Deal found 23/11$2,778
Mon 15/1207:00SYD - MIA
3 stops29h 54mMultiple Airlines
Fri 2/110:13MIA - SYD
3 stops34h 17mMultiple Airlines
Deal found 24/11$2,812
Mon 1/1211:20SYD - MIA
1 stop20h 28mAmerican Airlines
Mon 31/815:38MIA - SYD
1 stop25h 27mAmerican Airlines
Deal found 24/11$2,822
Thu 4/1214:05SYD - MIA
2 stops34h 46mAmerican Airlines
Thu 8/106:00MIA - SYD
1 stop33h 25mAmerican Airlines
Deal found 23/11$2,877
Wed 24/1221:40SYD - MIA
2 stops34h 11mAlaska Airlines
Wed 31/1216:51MIA - SYD
2 stops34h 54mAlaska Airlines
Deal found 24/11$2,915
Wed 10/1220:15SYD - MIA
2 stops41h 28mAir New Zealand
Wed 17/1216:42MIA - SYD
2 stops24h 03mAir New Zealand
Deal found 23/11$2,949
Sun 21/1221:40SYD - MIA
2 stops34h 11mAlaska Airlines
Tue 27/118:34MIA - SYD
2 stops33h 11mAlaska Airlines
Deal found 23/11$2,987
Wed 24/1212:10SYD - MIA
1 stop20h 56mUnited Airlines
Wed 31/1208:42MIA - SYD
1 stop29h 38mUnited Airlines
Deal found 24/11$3,048

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 November 2025.

Return from

$1,590

One-way from

$982

Popular in

December

Cheapest in

March

Average price

$1,911
Air New Zealand
  • Air New Zealand
  • 4/3-18/3
  • 4 total stops
  • 62h 37m total
  • Sydney to Miami
Search Deals
Air New Zealand
  • Air New Zealand
  • 16/2
  • 2 total stops
  • 26h 14m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($317 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($68 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
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 November 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

Sun 18/1

11:45-13:30

2 stops41h 45m

Miami

Wed 28/1

11:05-08:45

2 stops29h 40m

$1,635

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 23/1

09:55-21:54

2 stops27h 59m

Miami

Sun 25/1

09:05-08:45

2 stops31h 40m

$1,728

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 27/1

13:35-07:51

2 stops34h 16m

Miami

Thu 5/2

13:05-08:45

2 stops27h 40m

$1,779

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/2

11:45-21:54

2 stops26h 09m

Miami

Mon 16/2

06:15-08:45

2 stops34h 30m

$1,797

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/3

09:55-21:59

2 stops28h 04m

Miami

Wed 18/3

13:00-18:05

2 stops38h 05m

$1,909

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 10/2

11:20-22:29

2 stops27h 09m

Miami

Tue 24/2

08:00-09:35

3 stops33h 35m

$1,983

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/3

11:20-17:39

1 stop22h 19m

Miami

Wed 18/3

08:00-08:35

2 stops33h 35m

$2,109

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 10/2

11:20-11:39

3 stops40h 19m

Miami

Tue 3/3

21:05-09:35

2 stops44h 30m

$2,127

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 1/2

11:20-11:39

3 stops40h 19m

Miami

Sat 28/2

08:00-09:35

2 stops33h 35m

$2,129

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 27/1

11:20-23:59

3 stops28h 39m

Miami

Thu 5/2

11:55-12:35

3 stops32h 40m

$2,197

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 20 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 21 November 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 33 hours 32 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 16 December 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 most popular airlines that fly to Key Largo?

The most popular airlines flying from Sydney to Key Largo are Qantas Airways, Air Canada and Delta.

Qantas Airways
Qantas Airways
From $1,630
Air Canada
Air Canada
From $1,446
Qatar Airways
Qatar Airways
From $2,075
United Airlines
United Airlines
From $1,011

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 November 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.
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Air New Zealand
8.0
Very Good
536 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Delta
7.9
Good
7,998 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Qantas Airways
7.5
Good
943 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
United Airlines
7.4
Good
9,043 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before boarding.
Air Canada
7.1
Good
10,469 reviews
Air New Zealand
8.0
Very Good
536 reviews
Check prices

Food

7.4

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Annabel,Nov 2025

AKL - WRE

The seat I sat in the Auckland Airport at A waiting to board gate 42. Not far from the check in desk was dripping rain on me. When I looked up you could see on the beam discoloured drips. I forgot to say something to someone before 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 $429, however they can be found for as little as $318.

  • 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 (23 hours 35 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.
First Class
Business Class
Prem Econ Class
Economy 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.