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$893+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
12 Aug — 19 Aug1
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 13 July 2026.

Mon 3/813:15
SYD
-
MIA
3 stops30h 36m
Multiple Airlines
Mon 17/806:30
MIA
-
SYD
3 stops39h 20m
Multiple Airlines
Deal found 8/7$1,322
Mon 3/810:20
SYD
-
MIA
1 stop35h 19m
United Airlines
Mon 17/816:58
MIA
-
SYD
1 stop23h 57m
United Airlines
Deal found 8/7$1,441
Mon 20/710:20
SYD
-
MIA
2 stops24h 13m
United Airlines
Mon 10/816:53
MIA
-
SYD
2 stops24h 07m
United Airlines
Deal found 10/7$1,442
Mon 27/709:30
SYD
-
MIA
2 stops25h 03m
United Airlines
Tue 11/816:58
MIA
-
SYD
1 stop23h 57m
United Airlines
Deal found 11/7$1,444
Mon 3/809:30
SYD
-
MIA
2 stops36h 09m
United Airlines
Mon 7/916:58
MIA
-
SYD
1 stop23h 57m
United Airlines
Deal found 11/7$1,445
Mon 20/710:20
SYD
-
MIA
2 stops24h 13m
United Airlines
Tue 4/815:44
MIA
-
SYD
2 stops25h 16m
United Airlines
Deal found 12/7$1,447
Tue 21/710:20
SYD
-
MIA
1 stop21h 09m
United Airlines
Tue 11/816:58
MIA
-
SYD
1 stop23h 57m
United Airlines
Deal found 10/7$1,454
Wed 12/810:20
SYD
-
MIA
1 stop21h 15m
United Airlines
Wed 19/816:58
MIA
-
SYD
1 stop23h 57m
United Airlines
Deal found 13/7$1,455
Tue 21/710:20
SYD
-
MIA
1 stop21h 09m
United Airlines
Tue 4/812:29
MIA
-
SYD
2 stops28h 31m
United Airlines
Deal found 13/7$1,463
Mon 20/709:30
SYD
-
MIA
2 stops25h 03m
United Airlines
Sun 9/818:40
MIA
-
SYD
2 stops46h 20m
United Airlines
Deal found 10/7$1,507

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 13 July 2026.

Return from

$1,322

One-way from

$893

Popular in

January

Cheapest in

February

Average price

$2,566
3/8-17/8
  • 3/8-17/8
  • 6 total stops
  • 69h 56m total
  • Sydney to Miami
Search Deals
United Airlines
  • United Airlines
  • 11/8
  • 2 total stops
  • 39h 41m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($207 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($58 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 13 July 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

Mon 3/8

13:15-05:51

3 stops30h 36m

Miami

Mon 17/8

06:30-11:50

3 stops39h 20m

$1,333

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 3/8

10:20-07:39

1 stop35h 19m

Miami

Mon 17/8

16:58-06:55

1 stop23h 57m

$1,441

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 27/7

09:30-20:33

2 stops25h 03m

Miami

Wed 12/8

16:58-06:55

1 stop23h 57m

$1,442
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 27/7

10:20-17:29

1 stop21h 09m

Miami

Tue 11/8

16:58-06:55

1 stop23h 57m

$1,444

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 30/7

10:20-17:29

1 stop21h 09m

Miami

Wed 12/8

16:58-06:55

1 stop23h 57m

$1,444

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 12/8

10:20-11:54

2 stops39h 34m

Miami

Wed 19/8

16:58-06:55

1 stop23h 57m

$1,447

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 23/7

10:20-07:39

1 stop35h 19m

Miami

Thu 13/8

16:58-06:55

1 stop23h 57m

$1,513

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 2/8

10:20-11:24

2 stops39h 04m

Miami

Sun 9/8

17:40-07:00

2 stops47h 20m

$1,516
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 11/8

09:30-14:46

3 stops43h 16m

$893

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 18/8

09:30-22:34

3 stops27h 04m

$893

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 13 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

How long is the flight to Key Largo?

On average, a flight from Sydney to Key Largo takes 21 hours 9 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 American Airlines.

Qantas Airways
Qantas Airways
From $817
Air New Zealand
Air New Zealand
From $1,441
American Airlines
American Airlines
From $1,592
United Airlines
United Airlines
From $774

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 13 July 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
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air New Zealand
8.0
Very Good
653 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Qantas Airways
7.5
Good
1,061 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
United Airlines
7.4
Good
9,986 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
American Airlines
7.1
Good
11,810 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.
Air Canada
7.1
Good
11,335 reviews
Air New Zealand
8.0
Very Good
653 reviews
Check prices

Comfort

8.0

Boarding

8.2

Overall

8.0

Food

7.5

Entertainment

7.5

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Viren,June 2026

MEL - LAX

Flight got delayed and made us take a transit visa which was not a told before hand.

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, Qantas Airways 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 $130, however they can be found for as little as $110.

  • 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 (21 hours 9 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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