HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$832+ Cheap flights from Buffalo (BUF) to Sydney (SYD)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SYD
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Buffalo to Sydney

Cheapest flights from Buffalo to Sydney
Explore the most affordable flight options available from Buffalo to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:55 pmBUF - SYD
2 stops26h 05mAmerican Airlines
lun. 12/2211:20 amSYD - BUF
2 stops27h 09mAmerican Airlines
Deal found 10/27$1,278
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/512:57 pmBUF - SYD
2 stops28h 03mAmerican Airlines
mar. 12/92:05 pmSYD - BUF
1 stop24h 15mAmerican Airlines
Deal found 10/27$1,279
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/512:49 pmBUF - SYD
2 stops27h 41mDelta
mar. 12/910:40 amSYD - BUF
2 stops29h 19mDelta
Deal found 10/27$1,295
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/246:00 amBUF - SYD
2 stops58h 30mDelta
dom. 1/1110:40 amSYD - BUF
2 stops28h 19mDelta
Deal found 10/28$1,534
This Cathay Pacific deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1010:07 amBUF - SYD
2 stops31h 28mMultiple Airlines
mar. 11/1810:20 pmSYD - BUF
2 stops41h 16mMultiple Airlines
Deal found 10/29$1,568
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:10 amBUF - SYD
2 stops34h 20mDelta
mié. 12/310:40 amSYD - BUF
2 stops29h 19mDelta
Deal found 10/28$1,588
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/285:35 pmBUF - SYD
2 stops47h 30mUnited Airlines
lun. 1/1211:50 amSYD - BUF
2 stops41h 34mUnited Airlines
Deal found 10/28$1,603
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:30 amBUF - SYD
2 stops58h 35mUnited Airlines
dom. 1/112:00 pmSYD - BUF
2 stops40h 14mUnited Airlines
Deal found 10/28$1,616
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/29:03 amBUF - SYD
2 stops31h 27mDelta
sáb. 11/810:40 amSYD - BUF
2 stops28h 59mDelta
Deal found 10/29$1,658
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:30 amBUF - SYD
2 stops58h 35mUnited Airlines
vie. 1/912:10 pmSYD - BUF
2 stops42h 04mUnited Airlines
Deal found 10/28$1,666
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:30 amBUF - SYD
2 stops58h 35mUnited Airlines
jue. 1/82:00 pmSYD - BUF
2 stops45h 25mUnited Airlines
Deal found 10/28$1,672

Cheap flight deals from Buffalo to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,278
(American Airlines)

One-way from

$832
(Delta)

Popular in

April

Cheapest in

November

Average price

$1,461
Provider with most accurate pricing for Buffalo-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Sydney Kingsford Smith flights.
Search Deals
From Buffalo to Sydney Kingsford Smith
Search Deals
One-way flight from Buffalo to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Sydney 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 2,558,603 searches. Data last updated octubre 29, 2025.
Use the filters below to find and compare flights from Buffalo to Sydney that are best for you.

Fly from

Buffalo

Fly to

Sydney

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

lun. 12/1

2:58 pm-9:00 am

2 stops26h 02m

Sydney Kingsford Smith

lun. 12/15

11:20 am-10:20 pm

2 stops27h 00m

$1,278

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

lun. 11/17

6:12 am-6:55 am

1 stop32h 43m

Sydney Kingsford Smith

lun. 12/22

11:20 am-11:32 pm

2 stops28h 12m

$1,279

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

mar. 2/24

12:30 pm-7:25 am

2 stops26h 55m

Sydney Kingsford Smith

mar. 3/3

11:20 am-10:35 pm

2 stops27h 15m

$1,549

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

lun. 11/10

10:07 am-9:35 am

2 stops31h 28m

Sydney Kingsford Smith

mar. 11/18

10:20 pm-11:36 pm

2 stops41h 16m

$1,568

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

mié. 11/26

6:10 am-8:30 am

2 stops34h 20m

Sydney Kingsford Smith

mié. 12/3

10:40 am-11:59 pm

2 stops29h 19m

$1,588

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

mié. 12/3

6:00 am-8:30 am

2 stops34h 30m

Sydney Kingsford Smith

mié. 12/10

10:40 am-11:59 pm

2 stops29h 19m

$1,588

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

mar. 12/23

6:30 am-9:05 am

2 stops58h 35m

Sydney Kingsford Smith

jue. 1/8

2:00 pm-7:25 pm

2 stops45h 25m

$1,672

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

mié. 12/3

6:20 am-6:55 am

1 stop32h 35m

Sydney Kingsford Smith

mié. 12/10

2:05 pm-10:20 pm

1 stop24h 15m

$1,696

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

jue. 12/25

2:06 pm-8:30 am

2 stops26h 24m

Sydney Kingsford Smith

dom. 1/11

10:40 am-10:59 pm

2 stops28h 19m

$1,726

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

jue. 1/15

6:03 am-6:50 am

2 stops32h 47m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 14 results
1
2

Compare providers for flights from Buffalo to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Sydney in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Buffalo-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Buffalo-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Buffalo with our price prediction graph.
Estimated round-trip 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 Buffalo to Sydney

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

Currently, August is the cheapest month in which you can book a flight from Buffalo to Sydney (average of $276). Flying from Buffalo to Sydney in January is currently the most expensive (average of $1,414). 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 BUF to SYD?

Find hourly flight availability from Buffalo to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Buffalo to Sydney in the evening. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Buffalo to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated octubre 29, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Buffalo to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,999 reviews
Delta
7.9
Good
7,992 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,992 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

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

  • How long is the flight from Buffalo to Sydney?

    There are many flights that can get you from Buffalo to Sydney in 26h 02m. Fly via American Airlines to get the fastest option. There are 9700 mi between Buffalo and Sydney.

  • What are the cheapest airlines flying from Buffalo to Sydney round-trip?

    Flying on Delta is currently your cheapest option to Sydney, with prices starting at $276. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $1,166 and $1,193, respectively. These flights start at 81% lower than the current average price 3 months from now.

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

    $832 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $1,469 and $2,071, respectively.

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

    Yes. In addition to deals on Buffalo to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Sydney 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 Buffalo to Sydney?

    Currently, August is the cheapest month in which you can book a flight from Buffalo to Sydney (average of $276). Flying from Buffalo to Sydney in January is currently the most expensive (average of $1,414). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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 3 airlines flying from Buffalo to Sydney

Discover the top 3 airlines that operate flights from Buffalo to Sydney. 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 2,558,603 searches. Data last updated octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$1,872FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,166Average$1,562FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,193Average$1,562FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.