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Cheap flights from Sydney to Key Largo from $846

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — MIA
26 May — 2 Jun1
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 21 May 2025.

Round-trip from

$1,510

One-way from

$846

Popular in

December

Cheapest in

March

Average price

$2,119
Air Canada
  • Air Canada
  • 9/10-1/11
  • 4 total stops
  • 59h 13m total
  • Sydney to Key Largo
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3/6
  • 3/6
  • 3 total stops
  • 34h 23m total
  • Sydney to Key Largo
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($475 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($128 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 21 May 2025.

Thu 9/1010:20SYD - MIA
2 stops25h 28mAir Canada
Sat 1/1107:50MIA - SYD
2 stops33h 45mAir Canada
Deal found 20/5$1,510
Fri 15/810:20SYD - MIA
1 stop35h 17mVirgin Australia
Sat 30/818:35MIA - SYD
1 stop22h 20mVirgin Australia
Deal found 20/5$1,633
Thu 9/1010:10SYD - MIA
1 stop20h 50mQantas Airways
Sat 1/1121:15MIA - SYD
1 stop44h 45mQantas Airways
Deal found 20/5$1,724
Wed 4/609:10SYD - MIA
1 stop25h 10mAmerican Airlines
Tue 24/618:55MIA - SYD
1 stop22h 10mAmerican Airlines
Deal found 20/5$1,746
Thu 9/1010:30SYD - MIA
2 stops25h 42mUnited Airlines
Sat 1/1118:53MIA - SYD
1 stop45h 07mUnited Airlines
Deal found 20/5$1,778
Wed 17/909:25SYD - MIA
2 stops29h 00mDelta
Sun 19/1006:00MIA - SYD
2 stops34h 35mDelta
Deal found 20/5$2,009
Mon 23/617:45SYD - MIA
2 stops38h 15mMultiple Airlines
Sat 28/620:55MIA - SYD
2 stops44h 35mMultiple Airlines
Deal found 20/5$2,283
Wed 18/608:55SYD - MIA
2 stops52h 15mJapan Airlines
Wed 25/608:35MIA - SYD
2 stops55h 45mJapan Airlines
Deal found 19/5$2,379
Fri 30/521:40SYD - MIA
2 stops33h 41mAlaska Airlines
Wed 2/718:20MIA - SYD
2 stops35h 25mAlaska Airlines
Deal found 19/5$2,448
Sat 6/1221:45SYD - MIA
2 stops38h 50mTurkish Airlines
Tue 13/122:30MIA - SYD
2 stops53h 20mTurkish Airlines
Deal found 20/5$2,976
Wed 4/617:50SYD - MIA
3 stops43h 20mAir Tahiti Nui
Tue 24/618:55MIA - SYD
3 stops30h 15mAir Tahiti Nui
Deal found 20/5$3,013
Mon 23/620:45SYD - MIA
1 stop34h 05mQatar Airways
Sat 28/619:40MIA - SYD
1 stop44h 35mQatar Airways
Deal found 20/5$3,036

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 21 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

Thu 9/10

10:20-20:48

2 stops25h 28m

Miami

Sat 1/11

07:50-08:35

2 stops33h 45m

$1,510

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 15/8

10:20-07:37

1 stop35h 17m

Miami

Sat 30/8

18:35-06:55

1 stop22h 20m

$1,633

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 9/10

10:10-16:00

1 stop20h 50m

Miami

Sat 1/11

21:15-09:00

1 stop44h 45m

$1,724

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/6

09:10-20:20

1 stop25h 10m

Miami

Tue 24/6

18:55-07:05

1 stop22h 10m

$1,746

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Thu 9/10

10:30-21:12

2 stops25h 42m

Miami

Sat 1/11

18:53-07:00

1 stop45h 07m

$1,778

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 17/9

09:25-00:25

2 stops29h 00m

Miami

Sun 19/10

08:00-07:35

1 stop32h 35m

$2,009

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Mon 23/6

17:45-18:00

2 stops38h 15m

Miami

Sat 28/6

20:55-07:30

2 stops44h 35m

$2,283

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 18/6

08:55-23:10

2 stops52h 15m

Miami

Wed 25/6

08:35-06:20

2 stops55h 45m

$2,379

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Fri 30/5

21:40-17:21

2 stops33h 41m

Miami

Wed 2/7

18:20-19:45

2 stops35h 25m

$2,448

SydneyMiami

SYD - MIA

SYDMIA

Sydney Kingsford Smith

Wed 4/6

17:50-23:10

3 stops43h 20m

Miami

Tue 24/6

18:55-15:10

3 stops30h 15m

$3,013

Flights are sorted by cheapest return flights first.

Deals found on 20/5

Showing 1-10 of 25 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 16 May 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 $2,077). 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 21 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 21 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
8.7
Very Good
64 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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
1,477 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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
7,951 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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
10,000 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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.
Virgin Australia
7.5
Good
402 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Boarding

8.7

Entertainment

7.3

Comfort

8.1

Crew

9.0

Food

7.8

Overall

8.7

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 9 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 $1,154. However, be on the lookout for offers from Delta and Japan Airlines, 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 $2,077). 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 9 airlines flying from Sydney to Key Largo

Discover the top 9 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 21 May 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$516Average$2,014FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$1,161Average$1,540FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,259Average$1,839FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,512Average$2,679FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,692Average$2,100FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,768Average$2,454FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,841Average$2,780FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Japan AirlinesCheapest$1,866Average$2,493FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Hawaiian AirlinesCheapest$2,152Average$2,198FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines 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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