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Cheap flights from Sydney to Key Largo from $838

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
6 May — 13 May1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Key Largo are usually found in March or February, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Sydney to Key Largo

Keep the following information in mind while searching for Sydney to Key Largo flight deals. Data was last updated 1 May 2025.

Round-trip from

$1,907

One-way from

$838

Popular in

December

Cheapest in

March

Average price

$2,130
13/6-20/6
  • 13/6-20/6
  • 6 total stops
  • 66h 14m total
  • Sydney to Key Largo
Search Deals
26/5
  • 26/5
  • 3 total stops
  • 51h 20m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($416 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($124 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Sydney to Key Largo

Cheapest flights from Sydney to Key Largo
Explore the most affordable flight options available from Sydney to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Fri 13/613:15SYD - MIA
3 stops30h 40mMultiple Airlines
Fri 20/610:11MIA - SYD
3 stops35h 34mMultiple Airlines
Deal found 29/4$1,907
Thu 5/609:10SYD - MIA
2 stops24h 31mAmerican Airlines
Thu 26/617:30MIA - SYD
2 stops23h 35mAmerican Airlines
Deal found 30/4$1,968
Sun 1/609:10SYD - MIA
1 stop20h 46mBritish Airways
Sat 14/617:30MIA - SYD
2 stops23h 35mBritish Airways
Deal found 30/4$1,974
Tue 22/708:45SYD - MIA
2 stops36h 52mAir New Zealand
Fri 22/812:04MIA - SYD
2 stops30h 41mAir New Zealand
Deal found 29/4$2,010
Wed 4/608:55SYD - MIA
2 stops52h 15mJapan Airlines
Sun 8/621:00MIA - SYD
2 stops43h 20mJapan Airlines
Deal found 29/4$2,080
Tue 12/809:20SYD - MIA
2 stops49h 26mAir Canada
Tue 16/911:55MIA - SYD
2 stops53h 25mAir Canada
Deal found 29/4$2,115
Thu 29/510:20SYD - MIA
1 stop20h 47mUnited Airlines
Wed 2/715:17MIA - SYD
2 stops25h 43mUnited Airlines
Deal found 28/4$2,124
Sat 31/509:25SYD - MIA
2 stops27h 30mDelta
Sun 29/608:11MIA - SYD
2 stops32h 24mDelta
Deal found 28/4$2,138
Thu 22/521:40SYD - MIA
2 stops33h 41mHawaiian Airlines
Thu 29/514:30MIA - SYD
2 stops63h 15mHawaiian Airlines
Deal found 29/4$2,321
Wed 17/920:55SYD - MIA
2 stops37h 25mTurkish Airlines
Sun 19/1022:15MIA - SYD
2 stops54h 45mTurkish Airlines
Deal found 30/4$2,340
Tue 13/521:40SYD - MIA
2 stops33h 21mAlaska Airlines
Fri 16/518:21MIA - SYD
2 stops35h 24mAlaska Airlines
Deal found 28/4$2,385
Thu 29/507:10SYD - MIA
3 stops28h 44mAir Tahiti Nui
Tue 17/615:45MIA - SYD
3 stops33h 25mAir Tahiti Nui
Deal found 28/4$2,846

Cheapflights Fare Finder

Customise your flight search to find flights from Sydney to Key Largo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 1 May 2025.
Use the filters below to find and compare flights from Sydney to Key Largo that are best for you.

Fly from

Sydney

Fly to

Key Largo

Route

Depart

Return

Price

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 13/6

13:15-05:55

3 stops30h 40m

Miami

Fri 20/6

10:11-11:45

3 stops35h 34m

$1,907

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 5/6

09:10-19:41

2 stops24h 31m

Miami

Thu 26/6

17:30-07:05

2 stops23h 35m

$1,968

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sun 1/6

09:10-15:56

1 stop20h 46m

Miami

Sat 14/6

17:30-07:05

2 stops23h 35m

$1,974

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 22/7

08:45-07:37

2 stops36h 52m

Miami

Fri 22/8

12:04-08:45

2 stops30h 41m

$2,010

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/6

08:55-23:10

2 stops52h 15m

Miami

Sun 8/6

21:00-06:20

2 stops43h 20m

$2,080

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Tue 12/8

09:20-20:46

2 stops49h 26m

Miami

Tue 16/9

11:55-07:20

2 stops53h 25m

$2,115

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 29/5

10:20-17:07

1 stop20h 47m

Miami

Sat 28/6

08:40-07:00

2 stops32h 20m

$2,124

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Sat 31/5

09:25-17:55

1 stop22h 30m

Miami

Thu 3/7

07:45-06:35

1 stop32h 50m

$2,138

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 22/5

21:40-17:21

2 stops33h 41m

Miami

Thu 29/5

14:30-19:45

2 stops63h 15m

$2,321

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 17/9

20:55-20:20

2 stops37h 25m

Miami

Sun 19/10

22:15-20:00

2 stops54h 45m

$2,340

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 24 results
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2
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Best time to book a flight from Sydney to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Sydney 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 from Sydney to Key Largo

How far ahead should I book a flight from Sydney 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 25 April 2025.

The price you pay for your flight from Sydney to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Sydney to Key Largo?

Currently, March is the cheapest month in which you can book a flight from Sydney to Key Largo (average of $1,295). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to KE9?

Find hourly flight availability from Sydney to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 May 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sydney to Key Largo as you normally would.

What is the cheapest day to fly from Sydney 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.

Travellers seeking maximum savings on their Sydney to Key Largo flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 inches 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 1 May 2025.
Read through reviews of airlines operating flights from Sydney to Key Largo, such as Air Tahiti Nui, Japan Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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
1,464 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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
7,934 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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 New Zealand
8.0
Very Good
472 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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.
Alaska Airlines
8.0
Very Good
9,972 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Boarding

8.7

Crew

9.1

Comfort

8.1

Entertainment

7.3

Food

7.8

Overall

8.8

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.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sydney to Key Largo?

    Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to Key Largo. You should not have trouble finding flights to Key Largo from Kingsford Smith; the airport handles an average of 0 outbound flights to Key Largo per day. You should also have plenty of airline options to choose from since 10 airlines have flights from the Sydney airport to Key Largo. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.

  • What are the cheapest airlines to fly from Sydney to Key Largo one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $1,174. However, be on the lookout for offers from Japan Airlines and Delta, as they are both options that can get you from Sydney to Key Largo for a low price.

  • Can I find deals for flights from Sydney to Key Largo that include hotel bookings?

    Yes. In addition to deals on Sydney to Key Largo flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Key Largo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Key Largo.

  • Can I find deals for business class flights from Sydney to Key Largo?

    Yes. Cheapflights offers flight deals from Sydney to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Key Largo?

    Currently, March is the cheapest month in which you can book a flight from Sydney to Key Largo (average of $1,295). Flying from Sydney to Key Largo in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Sydney to Key Largo

Discover the top 10 airlines that operate flights from Sydney to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 1 May 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,165Average$1,546FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,263Average$1,849FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,518Average$2,673FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,628Average$2,073FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,702Average$2,034FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,775Average$2,573FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,848Average$2,989FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Japan AirlinesCheapest$1,873Average$2,389FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Hawaiian AirlinesCheapest$2,138Average$2,207FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
ANACheapest$2,393Average$2,485FlexibilityNo cancel feeOn-time80%
Search ANA flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Key Largo?

Cheapflights helps you search for flights from Sydney to Key Largo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Key Largo?

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 from Sydney to Key Largo.

Can Cheapflights find flights from Sydney to Key Largo with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Key Largo flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to Key Largo become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key Largo from Sydney today and book when prices fit your budget.

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