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$914+ 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
27 Jan — 3 Feb1
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 28 December 2025.

Sun 28/1214:05SYD - MIA
1 stop19h 55mMultiple Airlines
Sun 28/1221:01MIA - SYD
2 stops42h 24mMultiple Airlines
Deal found 26/12$4,241
Sun 28/1211:20SYD - MIA
1 stop21h 35mQantas Airways
Sun 28/1221:50MIA - SYD
1 stop43h 10mQantas Airways
Deal found 26/12$5,568
Mon 29/1209:15SYD - MIA
2 stops28h 50mJapan Airlines
Sat 3/107:50MIA - SYD
2 stops31h 00mJapan Airlines
Deal found 25/12$7,311
Mon 29/1209:15SYD - MIA
2 stops44h 51mJapan Airlines
Sun 4/107:50MIA - SYD
2 stops31h 00mJapan Airlines
Deal found 26/12$7,314
Tue 30/1209:15SYD - MIA
2 stops44h 51mJapan Airlines
Sun 4/107:50MIA - SYD
2 stops31h 00mJapan Airlines
Deal found 26/12$8,860
Mon 29/1209:15SYD - MIA
2 stops37h 52mMultiple Airlines
Sat 3/107:50MIA - SYD
2 stops31h 00mMultiple Airlines
Deal found 26/12$9,282
Sun 28/1211:15SYD - MIA
2 stops45h 35mFinnair
Sat 3/118:35MIA - SYD
2 stops45h 00mFinnair
Deal found 25/12$9,407
Mon 29/1222:20SYD - MIA
2 stops58h 30mFinnair
Sat 3/118:35MIA - SYD
2 stops45h 00mFinnair
Deal found 25/12$9,410
Mon 29/1221:45SYD - MIA
2 stops31h 19mANA
Sun 4/106:20MIA - SYD
2 stops36h 10mANA
Deal found 26/12$9,628
Mon 29/1211:10SYD - MIA
1 stop34h 40mLATAM Airlines
Sun 4/120:45MIA - SYD
1 stop41h 30mLATAM Airlines
Deal found 26/12$9,637

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 28 December 2025.

Return from

$1,549

One-way from

$955

Popular in

January

Cheapest in

August

Average price

$2,540
Air New Zealand
  • Air New Zealand
  • 29/1-9/2
  • 4 total stops
  • 70h 51m total
  • Sydney to Miami
Search Deals
Air New Zealand
  • Air New Zealand
  • 26/1
  • 2 total stops
  • 27h 59m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($226 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($49 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 28 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

Thu 29/1

11:45-10:56

2 stops39h 11m

Miami

Mon 9/2

09:05-08:45

2 stops31h 40m

$1,549

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 5/3

11:45-05:51

3 stops34h 06m

Miami

Mon 23/3

10:22-08:45

2 stops31h 23m

$1,711

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 7/3

09:55-05:43

3 stops35h 48m

Miami

Mon 23/3

10:22-08:45

2 stops31h 23m

$1,786

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 16/3

09:55-22:15

2 stops27h 20m

Miami

Sat 30/5

09:00-08:45

2 stops33h 45m

$1,872

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/3

11:20-11:39

2 stops39h 19m

Miami

Mon 16/3

08:00-08:35

2 stops33h 35m

$1,890

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 26/1

11:45-07:51

2 stops36h 06m

Miami

Mon 2/2

11:05-08:45

2 stops29h 40m

$1,920

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/2

11:45-21:54

2 stops26h 09m

Miami

Mon 16/2

06:15-08:45

2 stops34h 30m

$1,921

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

$1,936

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/3

10:20-11:39

2 stops40h 19m

Miami

Fri 3/4

08:00-08:20

2 stops33h 20m

$1,972

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 16/3

10:25-17:39

1 stop22h 14m

Miami

Sat 30/5

08:05-07:20

2 stops33h 15m

$2,000

Flights are sorted by cheapest return flights first.

Deals found on 24/12

Showing 1-10 of 19 results
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 26 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 19 hours 55 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 Canada and Air New Zealand.

Qantas Airways
Qantas Airways
From $1,544
Air Canada
Air Canada
From $1,355
Air New Zealand
Air New Zealand
From $1,491
Qatar Airways
Qatar Airways
From $1,994

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 28 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
562 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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
8,016 reviews
Air New Zealand
8.0
Very Good
562 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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
957 reviews
Air New Zealand
8.0
Very Good
562 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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
9,114 reviews
Air New Zealand
8.0
Very Good
562 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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
10,562 reviews
Air New Zealand
8.0
Very Good
562 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.4

Entertainment

7.5

Comfort

8.0

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 $146, however they can be found for as little as $145.

  • 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 (19 hours 55 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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