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$924+ 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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Key Largo in 2025

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 23 December 2025.

Mon 29/1211:20SYD - MIA
2 stops24h 40mAmerican Airlines
Wed 21/112:02MIA - SYD
2 stops28h 58mAmerican Airlines
Deal found 21/12$2,808
Mon 29/1211:20SYD - MIA
1 stop24h 35mAmerican Airlines
Mon 5/111:18MIA - SYD
2 stops28h 07mAmerican Airlines
Deal found 20/12$2,818
Wed 24/1211:20SYD - MIA
1 stop24h 35mAmerican Airlines
Mon 5/116:17MIA - SYD
1 stop23h 08mAmerican Airlines
Deal found 21/12$2,826
Wed 24/1210:40SYD - MIA
1 stop21h 00mDelta
Mon 5/108:15MIA - SYD
2 stops32h 15mDelta
Deal found 22/12$2,827
Tue 30/1210:40SYD - MIA
1 stop21h 10mDelta
Tue 20/107:50MIA - SYD
1 stop31h 00mDelta
Deal found 21/12$2,833
Mon 29/1211:20SYD - MIA
2 stops25h 40mAmerican Airlines
Sat 17/121:55MIA - SYD
2 stops42h 20mAmerican Airlines
Deal found 21/12$2,868
Fri 26/1211:20SYD - MIA
1 stop25h 29mAmerican Airlines
Sun 4/116:17MIA - SYD
1 stop23h 08mAmerican Airlines
Deal found 20/12$2,892
Wed 31/1210:40SYD - MIA
2 stops29h 51mDelta
Thu 15/108:00MIA - SYD
1 stop32h 30mDelta
Deal found 21/12$2,909
Mon 29/1211:20SYD - MIA
2 stops25h 40mAmerican Airlines
Fri 23/112:20MIA - SYD
2 stops27h 55mAmerican Airlines
Deal found 21/12$2,943
Sat 27/1211:20SYD - MIA
1 stop21h 35mAmerican Airlines
Thu 1/111:20MIA - SYD
1 stop27h 35mAmerican Airlines
Deal found 20/12$2,967
Fri 26/1214:05SYD - MIA
2 stops23h 27mAmerican Airlines
Fri 2/107:50MIA - SYD
1 stop30h 20mAmerican Airlines
Deal found 20/12$2,978
Wed 24/1211:20SYD - MIA
2 stops24h 35mQantas Airways
Mon 5/116:17MIA - SYD
1 stop23h 08mQantas Airways
Deal found 21/12$2,981

Find flight deals to Key Largo

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 23 December 2025.

Return from

$1,661

One-way from

$924

Popular in

December

Cheapest in

February

Average price

$2,565
Air New Zealand
  • Air New Zealand
  • 5/2-8/2
  • 4 total stops
  • 62h 24m total
  • Sydney to Miami
Search Deals
26/1
  • 26/1
  • 3 total stops
  • 40h 34m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($237 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for return flights in December 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 23 December 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

Wed 18/2

09:55-21:59

2 stops28h 04m

Miami

Wed 25/2

13:00-08:45

2 stops27h 45m

$1,781

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/2

11:20-17:39

1 stop22h 19m

Miami

Wed 25/2

07:25-09:35

2 stops34h 10m

$1,924

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:45-22:15

2 stops25h 30m

Miami

Mon 16/3

09:00-08:45

2 stops32h 45m

$1,933

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 19/2

11:20-00:16

2 stops28h 56m

Miami

Tue 17/3

21:05-08:35

2 stops44h 30m

$2,160

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 15/2

11:20-11:39

3 stops40h 19m

Miami

Sat 21/2

07:25-09:35

2 stops34h 10m

$2,189

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/2

11:20-00:16

2 stops28h 56m

Miami

Fri 20/3

21:05-08:35

2 stops44h 30m

$2,209

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/2

21:15-20:35

2 stops39h 20m

Miami

Fri 20/3

11:20-19:20

2 stops41h 00m

$2,343

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 23/2

21:15-20:35

2 stops39h 20m

Miami

Tue 10/3

23:30-19:20

2 stops52h 50m

$2,343

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/2

21:15-20:35

2 stops39h 20m

Miami

Fri 13/3

23:30-19:20

2 stops52h 50m

$2,343

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 22/2

21:15-20:35

2 stops39h 20m

Miami

Wed 18/3

11:20-19:20

2 stops41h 00m

$2,343

Flights are sorted by cheapest return flights first.

Deals found on 22/12

Showing 1-10 of 22 results
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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 19 December 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 21 hours 0 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 Air New Zealand.

Qantas Airways
Qantas Airways
From $1,562
Air Canada
Air Canada
From $1,371
Air New Zealand
Air New Zealand
From $1,509
Qatar Airways
Qatar Airways
From $2,018

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 23 December 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
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Air New Zealand
8.0
Very Good
556 reviews
Air New Zealand
8.0
Very Good
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Delta
7.9
Good
8,014 reviews
Air New Zealand
8.0
Very Good
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Qantas Airways
7.5
Good
949 reviews
Air New Zealand
8.0
Very Good
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
United Airlines
7.4
Good
9,106 reviews
Air New Zealand
8.0
Very Good
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Air Canada
7.1
Good
10,551 reviews
Air New Zealand
8.0
Very Good
556 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.4

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

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, Delta 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 $147, however they can be found for as little as $147.

  • 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 0 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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