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Cheap flights from Sydney to Belfast Intl Airport from $696

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BFS
30 Aug — 6 Sep1
1 adult

Cheap flight deals from Sydney to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Belfast Intl (BFS). 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 25 August 2025.

Round-trip from

$1,553

One-way from

$696

Popular in

July

Cheapest in

June

Average price

$2,189
22/10-2/11
  • 22/10-2/11
  • 4 total stops
  • 80h 15m total
  • Sydney to Belfast
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15/10
  • 15/10
  • 3 total stops
  • 42h 10m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($286 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease ($207 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Sydney to Belfast Intl

Cheapest flights from Sydney to Belfast Intl
Explore the most affordable flight options available from Sydney to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 August 2025.

Wed 22/1012:00SYD - BFS
2 stops44h 25mMultiple Airlines
Sun 2/1114:45BFS - SYD
2 stops35h 50mMultiple Airlines
Deal found 23/8$1,553
Sun 2/1121:30SYD - BFS
2 stops35h 00mMultiple Airlines
Tue 18/1106:00BFS - SYD
2 stops41h 00mMultiple Airlines
Deal found 23/8$1,569
Tue 7/1013:50SYD - BFS
3 stops43h 30mMultiple Airlines
Tue 14/1008:15BFS - SYD
3 stops40h 30mMultiple Airlines
Deal found 23/8$1,933
Fri 17/1013:50SYD - BFS
3 stops42h 45mMultiple Airlines
Sun 26/1014:45BFS - SYD
2 stops28h 50mMultiple Airlines
Deal found 23/8$1,980

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Belfast Intl 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 25 August 2025.
Use the filters below to find and compare flights from Sydney to Belfast Intl Airport that are best for you.

Fly from

Sydney

Fly to

Belfast Intl

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 22/10

12:00-22:25

2 stops44h 25m

Belfast Intl

Sun 2/11

14:45-13:35

2 stops35h 50m

$1,553

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 2/11

21:30-21:30

2 stops35h 00m

Belfast Intl

Tue 18/11

06:00-10:00

2 stops41h 00m

$1,569

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 7/10

13:50-23:20

3 stops43h 30m

Belfast Intl

Tue 14/10

08:15-10:45

3 stops40h 30m

$1,933

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 17/10

13:50-22:35

3 stops42h 45m

Belfast Intl

Sun 26/10

14:45-06:35

2 stops28h 50m

$1,980

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 15/10

13:50-22:00

3 stops42h 10m

$696

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 12/10

16:40-21:50

2 stops39h 10m

$865

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 31/8

08:40-09:55

3 stops58h 15m

$1,215

Flights are sorted by cheapest return flights first.

Deals found on 23/8

Best time to book a flight from Sydney to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Belfast Intl Airport

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

Find hourly flight availability from Sydney to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 August 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 43% on flights from Sydney to Belfast Intl Airport by exploring options for tickets at midday.

How much does it cost for a return flight from Sydney to Belfast Intl Airport?

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Belfast Intl. Reviews last updated 25 August 2025.
Check out reviews from past customers who have flown with British Airways from Sydney to Belfast Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,305 reviews
Check prices

Food

6.3

Comfort

6.7

Overall

6.7

Boarding

6.9

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience
British Airways
6.7
Okay
7,305 reviews
British Airways
6.7
Okay
7,305 reviews
Check prices

Food

6.3

Comfort

6.7

Overall

6.7

Boarding

6.9

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,May 2025

ACC - LGW

The flight was excellent , the crew were friendly and efficient , the entertainment on screen made a long (although not a long haul flight) very pleasing the meals and wine and fruit juice were very satisfying all in all a great experience

Related info for your journey

Find useful and relevant information for your journey from Sydney to Belfast Intl. 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 Belfast Intl?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly out of when you book flights from Sydney to Belfast Intl. 1 airline have flights from Kingsford Smith to Belfast Intl on a regular basis. Booking flights from Sydney Kingsford Smith to Belfast Intl should not be difficult; the airport handles an average of 0 outbound flights to Belfast Intl per day.

  • What is the cheapest airline to fly from Sydney to Belfast Intl Airport round-trip?

    According to our current data, British Airways ($1,776), offers the cheapest pricing from Sydney to Belfast Intl Airport. Users have found that British Airways is 22% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Sydney to Belfast Intl?

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

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

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

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Ballymena

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Alternative routes for Sydney to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Belfast City flights

Top airline flying from Sydney to Belfast Intl

Discover the top airline that operate flights from Sydney to Belfast Intl. 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 25 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,776Average$2,192FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sydney to Belfast Intl?

Cheapflights helps you search for flights from Sydney to Belfast Intl 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 Belfast Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sydney to Belfast Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Sydney to Belfast Intl with no change fees.

Can Cheapflights notify me if prices for flights from Sydney to Belfast Intl become cheaper?

Yes, Cheapflights offers price alerts on Sydney to Belfast Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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