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$708+ 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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
20 Apr — 27 Apr1
1 adult

Flights to Key Largo in 2025

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 15 April 2025.

Return from

$1,870

One-way from

$708

Popular in

December

Cheapest in

March

Average price

$2,473
30/5-6/6
  • 30/5-6/6
  • 6 total stops
  • 64h 29m total
  • Sydney to Miami
Search Deals
Delta
  • Delta
  • 20/7
  • 2 total stops
  • 27h 32m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($462 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($130 potential savings vs. average return price).
Search Deals
Average for return flights in April 2025
Search Deals

Find flight deals to Key Largo

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 15 April 2025.

Thu 24/413:15SYD - MIA
3 stops34h 45mMultiple Airlines
Wed 7/512:00MIA - SYD
3 stops33h 45mMultiple Airlines
Deal found 15/4$1,791
Thu 25/1211:05SYD - MIA
1 stop21h 01mDelta
Sun 11/108:00MIA - SYD
1 stop32h 35mDelta
Deal found 14/4$2,057
Mon 9/609:20SYD - MIA
1 stop21h 50mAir Canada
Sat 14/611:55MIA - SYD
2 stops53h 25mAir Canada
Deal found 14/4$2,206
Wed 25/608:55SYD - MIA
2 stops52h 15mJapan Airlines
Sun 29/607:03MIA - SYD
2 stops33h 17mJapan Airlines
Deal found 14/4$2,299
Tue 13/509:55SYD - MIA
2 stops26h 34mAir New Zealand
Tue 20/516:40MIA - SYD
2 stops26h 05mAir New Zealand
Deal found 15/4$2,418
Thu 14/809:30SYD - MIA
3 stops34h 29mUnited Airlines
Sat 30/814:55MIA - SYD
2 stops50h 00mUnited Airlines
Deal found 14/4$2,899
Fri 15/809:10SYD - MIA
1 stop35h 32mQantas Airways
Sat 30/821:30MIA - SYD
1 stop43h 35mQantas Airways
Deal found 14/4$2,967
Wed 25/617:50SYD - MIA
3 stops43h 20mAir Tahiti Nui
Sun 29/607:05MIA - SYD
3 stops42h 05mAir Tahiti Nui
Deal found 14/4$3,179
Thu 25/1208:10SYD - MIA
3 stops40h 18mChina Southern
Mon 12/115:30MIA - SYD
3 stops49h 55mChina Southern
Deal found 14/4$3,197
Thu 14/811:50SYD - MIA
2 stops33h 50mLATAM Airlines
Sat 13/901:45MIA - SYD
2 stops39h 00mLATAM Airlines
Deal found 14/4$3,316
Fri 18/420:45SYD - MIA
1 stop34h 05mQatar Airways
Tue 22/419:40MIA - SYD
1 stop31h 30mQatar Airways
Deal found 14/4$3,504
Sat 31/507:40SYD - MIA
2 stops30h 58mCathay Pacific
Sun 8/608:35MIA - SYD
2 stops34h 05mCathay Pacific
Deal found 14/4$5,265

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 15 April 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

Fri 30/5

13:15-05:43

3 stops30h 28m

Miami

Fri 6/6

11:44-11:45

3 stops34h 01m

$1,870

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 1/5

09:25-17:30

1 stop22h 05m

Miami

Sat 17/5

07:40-06:35

1 stop32h 55m

$2,063

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 9/6

09:20-17:10

1 stop21h 50m

Miami

Sat 14/6

11:55-07:20

2 stops53h 25m

$2,206

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/6

08:55-23:10

2 stops52h 15m

Miami

Sun 29/6

07:03-06:20

2 stops33h 17m

$2,299

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 13/5

09:55-22:29

2 stops26h 34m

Miami

Tue 20/5

16:40-08:45

2 stops26h 05m

$2,418

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/8

09:30-05:59

3 stops34h 29m

Miami

Sat 30/8

18:15-07:00

2 stops46h 45m

$2,899

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 15/8

09:10-06:42

1 stop35h 32m

Miami

Sat 30/8

21:30-07:05

1 stop43h 35m

$2,967

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 25/6

17:50-23:10

3 stops43h 20m

Miami

Sun 29/6

07:05-15:10

3 stops42h 05m

$3,179

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/8

11:50-07:40

2 stops33h 50m

Miami

Sat 13/9

01:45-06:45

2 stops39h 00m

$3,316

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 31/5

07:40-00:38

2 stops30h 58m

Miami

Sun 8/6

08:35-08:40

2 stops34h 05m

$5,265

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 18 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 11 April 2025.

To ensure you get the cheapest price possible for a flight to Key Largo, you should look to book at least 70 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 59 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 13 October 2024.

Users looking for the lowest fares to Key Largo should consider flying on Friday evenings, 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 United Airlines.

Qantas Airways

Qantas Airways

From $1,087

Air Canada

Air Canada

From $978

United Airlines

United Airlines

From $1,135

Delta

Delta

From $746

What are the cheapest airlines that fly to Key Largo?

The cheapest airlines flying from Sydney to Key Largo are Delta, 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 15 April 2025.
Read through reviews of airlines servicing Key Largo, such as Air Tahiti Nui, Japan Airlines and Fiji Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.8
Very Good
62 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very Good
1,440 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.0
Very Good
183 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Emirates
8.0
Very Good
3,198 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very Good
7,917 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Entertainment

7.3

Crew

9.1

Overall

8.8

Boarding

8.7

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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 $285, however they can be found for as little as $193.

  • 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 59 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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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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