Find flights
Airlines

$750+ 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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
17 May — 24 May1
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 17 April 2026.

Tue 26/513:15
SYD
-
MIA
3 stops30h 18m
Multiple Airlines
Sat 30/506:30
MIA
-
SYD
3 stops49h 40m
Multiple Airlines
Deal found 16/4$1,442
Sat 16/513:15
SYD
-
MIA
3 stops38h 05m
Multiple Airlines
Wed 27/506:30
MIA
-
SYD
3 stops39h 20m
Multiple Airlines
Deal found 16/4$1,575
Sat 16/513:15
SYD
-
MIA
3 stops38h 05m
Multiple Airlines
Sat 23/506:30
MIA
-
SYD
3 stops39h 20m
Multiple Airlines
Deal found 16/4$1,613
Mon 11/513:15
SYD
-
MIA
3 stops54h 23m
Multiple Airlines
Mon 18/506:00
MIA
-
SYD
3 stops40h 05m
Multiple Airlines
Deal found 13/4$1,697
Mon 27/417:50
SYD
-
MIA
2 stops27h 32m
Multiple Airlines
Tue 12/511:23
MIA
-
SYD
2 stops29h 42m
Multiple Airlines
Deal found 17/4$1,765
Mon 1/617:50
SYD
-
MIA
2 stops27h 10m
Multiple Airlines
Mon 8/606:30
MIA
-
SYD
2 stops34h 35m
Multiple Airlines
Deal found 17/4$1,787
Thu 14/517:50
SYD
-
MIA
2 stops49h 48m
Multiple Airlines
Thu 21/506:30
MIA
-
SYD
2 stops35h 00m
Multiple Airlines
Deal found 16/4$1,857
Thu 28/509:10
SYD
-
MIA
2 stops29h 34m
Multiple Airlines
Thu 4/608:10
MIA
-
SYD
2 stops32h 55m
Multiple Airlines
Deal found 13/4$1,895

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 17 April 2026.

Return from

$1,442

One-way from

$750

Popular in

January

Cheapest in

February

Average price

$2,621
26/5-30/5
  • 26/5-30/5
  • 6 total stops
  • 79h 58m total
  • Sydney to Miami
Search Deals
30/4
  • 30/4
  • 3 total stops
  • 31h 41m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($258 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($77 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 17 April 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

Thu 30/4

09:15-00:54

2 stops29h 39m

Miami

Wed 13/5

07:39-06:50

1 stop33h 11m

$1,971
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 13/5

09:15-18:34

2 stops23h 19m

Miami

Wed 20/5

10:35-06:50

2 stops30h 15m

$1,973

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 27/4

09:15-10:46

2 stops39h 31m

Miami

Sun 10/5

18:30-06:50

1 stop22h 20m

$1,973

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 10/5

09:15-22:51

2 stops27h 36m

Miami

Sun 17/5

11:58-06:50

2 stops28h 52m

$2,034

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 1/5

09:15-00:54

2 stops29h 39m

Miami

Fri 15/5

08:10-06:50

1 stop32h 40m

$2,091
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 29/5

15:15-10:01

3 stops56h 46m

$782

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 6/5

15:15-10:01

3 stops56h 46m

$927

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 30/4

17:50-00:49

2 stops44h 59m

$1,092

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 17/5

13:00-00:44

3 stops49h 44m

$1,125
Fastest single journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 12/5

09:15-17:06

1 stop21h 51m

$1,212

Flights are sorted by cheapest return flights first.

Deals found on 14/4

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

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 10 April 2026.

To ensure you get the cheapest price possible for a flight to Key Largo, you should look to book at least 67 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 26 hours 44 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 United Airlines.

Qantas Airways
Qantas Airways
From $1,222
Air New Zealand
Air New Zealand
From $1,341
Air Canada
Air Canada
From $1,220
Qatar Airways
Qatar Airways
From $1,858

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from Sydney to Key Largo are United Airlines, Air Canada 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 17 April 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
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very Good
627 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,019 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,602 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
American Airlines
7.1
Good
11,593 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air Canada
7.1
Good
10,932 reviews
Air New Zealand
8.0
Very Good
627 reviews
Check prices

Crew

8.5

Food

7.4

Entertainment

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after 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 $89, however they can be found for as little as $84.

  • 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 (26 hours 44 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 flights to Key Largo
Business class flights to Key Largo
Prem Economy class flights to Key Largo
Economy class flights to Key Largo

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.