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Cheap flights from Sydney to Belfast Intl Airport from $1,034

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BFS
11 Mar — 18 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Belfast Intl

Enter your travel dates to find the best prices.

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 9 February 2026.

Wed 13/520:30
SYD
-
BFS
2 stops32h 10m
Multiple Airlines
Sun 7/609:55
BFS
-
SYD
2 stops38h 05m
Multiple Airlines
Deal found 7/2$1,500
Sun 22/313:35
SYD
-
BFS
3 stops43h 20m
Multiple Airlines
Sun 29/313:25
BFS
-
SYD
2 stops31h 10m
Multiple Airlines
Deal found 5/2$2,133
Sat 7/212:00
SYD
-
BFS
3 stops46h 50m
Multiple Airlines
Fri 13/214:20
BFS
-
SYD
2 stops29h 15m
Multiple Airlines
Deal found 4/2$2,337
Tue 24/312:00
SYD
-
BFS
2 stops33h 05m
Multiple Airlines
Tue 31/314:45
BFS
-
SYD
2 stops33h 15m
Multiple Airlines
Deal found 7/2$2,516

Find 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 9 February 2026.

Round-trip from

$1,500

One-way from

$1,034

Popular in

July

Cheapest in

October

Average price

$1,876
13/5-7/6
  • 13/5-7/6
  • 4 total stops
  • 70h 15m total
  • Sydney to Belfast
Search Deals
14/4
  • 14/4
  • 2 total stops
  • 34h 35m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($703 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($186 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 9 February 2026.
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 13/5

20:30-19:40

2 stops32h 10m

Belfast Intl

Sun 7/6

09:55-09:00

2 stops38h 05m

$1,500

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 22/3

13:35-21:55

3 stops43h 20m

Belfast Intl

Sun 29/3

13:25-06:35

2 stops31h 10m

$2,133

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 24/3

12:00-10:05

2 stops33h 05m

Belfast Intl

Tue 31/3

14:45-10:00

2 stops33h 15m

$2,516

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 14/4

21:30-23:05

2 stops34h 35m

$1,034

Flights are sorted by cheapest return flights first.

Deals found on 7/2

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.

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 9 February 2026.
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
7,721 reviews
Check prices

Comfort

6.8

Boarding

6.9

Food

6.4

Overall

6.7

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,721 reviews
British Airways
6.7
Okay
7,721 reviews
Check prices

Comfort

6.8

Boarding

6.9

Food

6.4

Overall

6.7

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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 ($1,816), offers the cheapest pricing from Sydney to Belfast Intl Airport. Users have found that British Airways is 19% 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 9 February 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,816Average$2,137FlexibilityNo 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?

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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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