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$904+ 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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
29 Mar — 5 Apr1
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 27 February 2026.

Mon 9/310:40
SYD
-
MIA
1 stop21h 39m
Delta
Mon 16/307:05
MIA
-
SYD
2 stops33h 20m
Delta
Deal found 25/2$1,458
Wed 26/811:55
SYD
-
MIA
2 stops23h 55m
Air New Zealand
Wed 16/917:00
MIA
-
SYD
2 stops25h 45m
Air New Zealand
Deal found 26/2$1,598
Sun 26/411:55
SYD
-
MIA
2 stops24h 33m
Air New Zealand
Tue 12/507:15
MIA
-
SYD
2 stops37h 25m
Air New Zealand
Deal found 25/2$1,728
Mon 20/409:55
SYD
-
MIA
2 stops26h 33m
Air New Zealand
Mon 27/409:00
MIA
-
SYD
2 stops33h 45m
Air New Zealand
Deal found 23/2$1,805
Sun 26/409:55
SYD
-
MIA
2 stops26h 33m
Multiple Airlines
Tue 12/510:50
MIA
-
SYD
3 stops33h 50m
Multiple Airlines
Deal found 25/2$1,842
Mon 13/409:15
SYD
-
MIA
2 stops34h 12m
Delta
Wed 22/407:10
MIA
-
SYD
1 stop33h 40m
Delta
Deal found 26/2$1,877
Fri 27/210:40
SYD
-
MIA
2 stops22h 15m
Delta
Mon 30/315:33
MIA
-
SYD
2 stops25h 17m
Delta
Deal found 22/2$1,888
Wed 8/409:15
SYD
-
MIA
1 stop35h 34m
Delta
Thu 16/418:30
MIA
-
SYD
1 stop22h 20m
Delta
Deal found 25/2$1,889
Mon 2/310:40
SYD
-
MIA
1 stop23h 12m
Delta
Sun 15/308:00
MIA
-
SYD
2 stops31h 05m
Delta
Deal found 26/2$1,892
Tue 24/210:40
SYD
-
MIA
1 stop23h 12m
Delta
Tue 3/307:50
MIA
-
SYD
1 stop31h 00m
Delta
Deal found 23/2$1,898
Wed 25/309:40
SYD
-
MIA
2 stops27h 46m
Delta
Fri 3/408:05
MIA
-
SYD
1 stop32h 45m
Delta
Deal found 26/2$1,901

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 27 February 2026.

Return from

$1,458

One-way from

$904

Popular in

January

Cheapest in

August

Average price

$1,594
Delta
  • Delta
  • 9/3-16/3
  • 3 total stops
  • 54h 59m total
  • Sydney to Miami
Search Deals
Delta
  • Delta
  • 14/5
  • 2 total stops
  • 27h 36m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($252 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($70 potential savings vs. average return price).
Search Deals
Average for return flights in February 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 27 February 2026.
Use the filters below to find and compare flights to Key Largo that are best for you.

Fly from

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 29/7

09:15-17:48

1 stop22h 33m

Miami

Wed 5/8

18:30-06:50

1 stop22h 20m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/3

09:40-06:49

1 stop36h 09m

Miami

Sun 29/3

08:05-07:50

1 stop32h 45m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 30/7

09:15-18:54

2 stops23h 39m

Miami

Thu 6/8

15:35-06:50

2 stops25h 15m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 26/7

09:15-17:48

1 stop22h 33m

Miami

Tue 4/8

18:30-06:50

1 stop22h 20m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 28/7

09:15-18:54

2 stops23h 39m

Miami

Wed 5/8

15:35-06:50

2 stops25h 15m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

09:40-17:19

1 stop22h 39m

Miami

Fri 3/4

08:05-07:50

1 stop32h 45m

$1,898

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 17/5

09:15-19:58

2 stops24h 43m

Miami

Sun 24/5

08:00-06:50

1 stop32h 50m

$1,901

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 24/3

13:05-10:17

1 stop36h 12m

Miami

Tue 31/3

16:47-12:50

2 stops29h 03m

$1,956

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 11/4

09:15-17:20

1 stop22h 05m

Miami

Sat 18/4

06:00-06:50

2 stops34h 50m

$2,209

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

11:45-22:15

2 stops25h 30m

Miami

Fri 3/4

09:00-09:45

2 stops33h 45m

$2,213

Flights are sorted by cheapest return flights first.

Deals found on 25/2

Showing 1-10 of 18 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 20 February 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 22 hours 5 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 Air Canada.

Qantas Airways
Qantas Airways
From $1,232
Air Canada
Air Canada
From $1,247
Air New Zealand
Air New Zealand
From $1,409
Qatar Airways
Qatar Airways
From $1,884

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 27 February 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
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air New Zealand
8.0
Very Good
605 reviews
Air New Zealand
8.0
Very Good
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Qantas Airways
7.5
Good
999 reviews
Air New Zealand
8.0
Very Good
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
United Airlines
7.4
Good
9,351 reviews
Air New Zealand
8.0
Very Good
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
American Airlines
7.2
Good
11,357 reviews
Air New Zealand
8.0
Very Good
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air Canada
7.1
Good
10,750 reviews
Air New Zealand
8.0
Very Good
605 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

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 $207, however they can be found for as little as $167.

  • Where does the fastest flight to Key Largo depart from?

    For those looking to save time traveling to Key Largo, Melbourne offers the quickest one-way flight (21 hours 53 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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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.

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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.

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

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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!

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