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$691+ 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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
29 Aug — 5 Sep1
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 30 July 2026.

Wed 16/913:15
SYD
-
MIA
3 stops40h 09m
Multiple Airlines
Wed 30/905:32
MIA
-
SYD
3 stops50h 53m
Multiple Airlines
Deal found 30/7$1,237
Mon 14/909:20
SYD
-
MIA
1 stop21h 54m
Air Canada
Mon 28/918:10
MIA
-
SYD
1 stop23h 10m
Air Canada
Deal found 28/7$1,328
Wed 9/913:15
SYD
-
MIA
3 stops40h 09m
Multiple Airlines
Mon 28/905:32
MIA
-
SYD
3 stops40h 18m
Multiple Airlines
Deal found 28/7$1,350
Tue 8/909:20
SYD
-
MIA
2 stops50h 57m
Air Canada
Tue 15/907:55
MIA
-
SYD
2 stops57h 25m
Air Canada
Deal found 27/7$1,364
Wed 9/909:20
SYD
-
MIA
1 stop21h 54m
Air Canada
Mon 28/918:10
MIA
-
SYD
1 stop23h 10m
Air Canada
Deal found 28/7$1,373
Wed 28/1010:20
SYD
-
MIA
2 stops40h 56m
Multiple Airlines
Wed 18/1112:50
MIA
-
SYD
3 stops28h 45m
Multiple Airlines
Deal found 25/7$1,376
Tue 25/813:15
SYD
-
MIA
3 stops38h 17m
Multiple Airlines
Tue 1/908:10
MIA
-
SYD
3 stops37h 40m
Multiple Airlines
Deal found 26/7$1,383

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 30 July 2026.

Return from

$1,237

One-way from

$691

Popular in

January

Cheapest in

February

Average price

$2,567
16/9-30/9
  • 16/9-30/9
  • 6 total stops
  • 91h 02m total
  • Sydney to Miami
Search Deals
22/10
  • 22/10
  • 3 total stops
  • 54h 33m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($204 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($55 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 30 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

Tue 25/8

10:20-22:34

3 stops26h 14m

Miami

Tue 1/9

12:17-07:00

2 stops28h 43m

$1,450

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 16/9

09:15-05:49

2 stops34h 34m

Miami

Wed 30/9

18:46-06:50

1 stop22h 04m

$1,614

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 5/11

09:20-15:52

1 stop22h 32m

Miami

Mon 9/11

16:09-09:20

2 stops49h 11m

$1,614
Fastest return journey

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 2/9

10:20-17:35

1 stop21h 15m

Miami

Wed 16/9

16:58-06:55

1 stop23h 57m

$1,620

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 13/8

09:30-11:11

2 stops39h 41m

Miami

Mon 17/8

15:57-06:55

2 stops48h 58m

$1,625

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 14/9

09:30-22:34

3 stops27h 04m

Miami

Mon 28/9

13:15-06:55

2 stops27h 40m

$1,626

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 18/9

10:20-22:34

2 stops26h 14m

Miami

Sat 10/10

08:02-07:55

2 stops56h 53m

$1,689

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 9/1

11:50-07:47

1 stop35h 57m

Miami

Wed 10/2

17:00-07:00

1 stop22h 00m

$1,852

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 10/8

09:10-16:25

1 stop21h 15m

Miami

Sat 2/1

07:43-06:25

1 stop30h 42m

$2,055
Cheapest one-way

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 8/9

13:15-10:30

3 stops35h 15m

$705

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 14 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
American Airlines
American Airlines
From $1,593
Air New Zealand
Air New Zealand
From $1,442
United Airlines
United Airlines
From $775

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from Sydney to Key Largo are Air Canada, United Airlines 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 30 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
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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
656 reviews
Air New Zealand
8.0
Very Good
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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
1,073 reviews
Air New Zealand
8.0
Very Good
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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
10,046 reviews
Air New Zealand
8.0
Very Good
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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
11,841 reviews
Air New Zealand
8.0
Very Good
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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
11,406 reviews
Air New Zealand
8.0
Very Good
656 reviews
Check prices

Crew

8.5

Entertainment

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.5

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, Brisbane offers the quickest one-way flight (20 hours 20 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 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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