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$818+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
— MIA
30 Mar — 6 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 25 March 2025.

Return from

$1,580

One-way from

$818

Popular in

December

Cheapest in

March

Average price

$1,858
Air Canada
  • Air Canada
  • 9/6-24/6
  • 3 total stops
  • 65h 35m total
  • Sydney to Miami
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2/5
  • 2/5
  • 2 total stops
  • 44h 17m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($497 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($137 potential savings vs. average return price).
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Average for return flights in March 2025
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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 25 March 2025.

Mon 13/1010:20SYD - MIA
2 stops39h 38mAir Canada
Thu 30/1018:25MIA - SYD
2 stops35h 15mAir Canada
Deal found 24/3$1,540
Thu 1/510:25SYD - MIA
1 stop19h 48mAmerican Airlines
Sun 9/1119:30MIA - SYD
2 stops45h 30mAmerican Airlines
Deal found 23/3$1,713
Thu 24/409:10SYD - MIA
1 stop25h 08mQantas Airways
Tue 13/507:33MIA - SYD
1 stop32h 32mQantas Airways
Deal found 25/3$1,777
Tue 25/311:20SYD - MIA
2 stops27h 39mUnited Airlines
Mon 5/516:40MIA - SYD
1 stop24h 15mUnited Airlines
Deal found 24/3$1,826
Wed 23/409:25SYD - MIA
1 stop22h 05mDelta
Wed 30/414:57MIA - SYD
2 stops25h 38mDelta
Deal found 24/3$1,842
Thu 14/820:30SYD - MIA
2 stops34h 45mMultiple Airlines
Sat 30/807:55MIA - SYD
3 stops33h 25mMultiple Airlines
Deal found 24/3$1,863
Fri 2/511:50SYD - MIA
2 stops24h 39mAir New Zealand
Sun 9/1107:00MIA - SYD
2 stops33h 45mAir New Zealand
Deal found 23/3$1,920
Mon 29/1209:15SYD - MIA
2 stops51h 45mJapan Airlines
Mon 12/108:20MIA - SYD
2 stops30h 30mJapan Airlines
Deal found 24/3$2,431
Mon 29/1217:50SYD - MIA
3 stops51h 23mAir Tahiti Nui
Mon 12/120:15MIA - SYD
3 stops53h 25mAir Tahiti Nui
Deal found 24/3$2,984
Mon 29/1222:00SYD - MIA
2 stops50h 28mChina Southern
Mon 12/115:30MIA - SYD
3 stops47h 05mChina Southern
Deal found 24/3$3,096
Mon 29/1212:30SYD - MIA
1 stop32h 55mLATAM Airlines
Sun 11/100:45MIA - SYD
2 stops37h 45mLATAM Airlines
Deal found 24/3$3,161

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 25 March 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

Mon 9/6

09:20-17:10

1 stop21h 50m

Miami

Tue 24/6

21:35-07:20

2 stops43h 45m

$1,580

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 1/5

10:25-16:13

1 stop19h 48m

Miami

Sun 9/11

19:30-09:00

2 stops45h 30m

$1,713

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 24/4

09:10-20:18

1 stop25h 08m

Miami

Tue 13/5

07:33-06:05

1 stop32h 32m

$1,777

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/8

09:30-22:45

2 stops27h 15m

Miami

Sun 14/9

13:20-07:00

2 stops27h 40m

$1,826

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 23/4

09:25-17:30

1 stop22h 05m

Miami

Wed 30/4

14:57-06:35

2 stops25h 38m

$1,842

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/8

20:30-17:15

2 stops34h 45m

Miami

Sat 30/8

07:55-07:20

3 stops33h 25m

$1,863

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 2/5

11:50-22:29

2 stops24h 39m

Miami

Sun 9/11

07:00-08:45

2 stops33h 45m

$1,920

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 20/5

12:10-07:10

2 stops33h 00m

Miami

Tue 17/6

01:45-06:45

2 stops39h 00m

$3,234

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 14/8

07:10-21:44

3 stops28h 34m

Miami

Sun 14/9

19:36-15:10

3 stops29h 34m

$3,412

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 5/6

20:45-10:10

1 stop51h 25m

Miami

Wed 25/6

21:45-06:15

2 stops42h 30m

$4,217

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 20 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 21 March 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 22 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 $1,134

Air Canada

Air Canada

From $994

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 25 March 2025.
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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
8.7
Very Good
61 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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
182 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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
7,890 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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 New Zealand
7.9
Good
455 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Comfort

8.0

Food

7.8

Overall

8.7

Crew

9.1

Boarding

8.7

Entertainment

7.2

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 $349, however they can be found for as little as $281.

  • 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 22 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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