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Cheap flights from Sydney to Belfast from $687

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BHD
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Belfast
Explore the most affordable flight options available from Sydney to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 June 2026.

Mon 10/820:30
SYD
-
BFS
2 stops34h 55m
Multiple Airlines
Mon 17/806:10
BFS
-
SYD
2 stops45h 25m
Multiple Airlines
Deal found 25/6$1,735
Sat 8/811:00
SYD
-
BFS
2 stops44h 40m
Multiple Airlines
Sat 15/806:20
BFS
-
SYD
2 stops45h 15m
Multiple Airlines
Deal found 28/6$1,773
Thu 20/811:00
SYD
-
BFS
2 stops55h 00m
Multiple Airlines
Mon 24/806:10
BFS
-
SYD
2 stops41h 50m
Multiple Airlines
Deal found 28/6$1,930
Tue 28/710:05
SYD
-
BFS
2 stops32h 50m
Multiple Airlines
Wed 5/809:45
BFS
-
SYD
3 stops35h 25m
Multiple Airlines
Deal found 27/6$2,290
Sun 8/1115:50
SYD
-
BHD
2 stops28h 55m
Qatar Airways
Wed 11/1114:25
BHD
-
SYD
2 stops29h 25m
Qatar Airways
Deal found 24/6$2,367
Tue 28/713:00
SYD
-
BHD
3 stops41h 05m
Multiple Airlines
Wed 5/807:00
BHD
-
SYD
2 stops27h 25m
Multiple Airlines
Deal found 27/6$2,672

Find flight deals from Sydney to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Belfast (BF1). 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 29 June 2026.

Round-trip from

$1,735

One-way from

$687

Popular in

June

Cheapest in

April

Average price

$3,096
10/8-17/8
  • 10/8-17/8
  • 4 total stops
  • 80h 20m total
  • Sydney to Belfast
Search Deals
10/7
  • 10/7
  • 3 total stops
  • 53h 35m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($319 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($147 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Belfast 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 29 June 2026.
Use the filters below to find and compare flights from Sydney to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 8/8

11:00-22:40

2 stops44h 40m

Belfast Intl

Sat 15/8

06:20-12:35

2 stops45h 15m

$1,785

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 20/8

11:00-09:00

2 stops55h 00m

Belfast Intl

Mon 24/8

06:10-09:00

2 stops41h 50m

$1,930

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 28/7

10:05-09:55

2 stops32h 50m

Belfast Intl

Wed 5/8

09:45-06:10

3 stops35h 25m

$2,290
Fastest return journey

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 8/11

15:50-09:45

2 stops28h 55m

Belfast City

Wed 11/11

14:25-06:50

2 stops29h 25m

$2,367

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Tue 28/7

13:00-21:05

3 stops41h 05m

Belfast City

Wed 5/8

07:00-19:25

2 stops27h 25m

$2,672

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 10/8

13:35-17:50

2 stops37h 15m

Belfast Intl

Mon 17/8

20:15-19:10

3 stops37h 55m

$3,394
Cheapest one-way
Fastest single journey

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 10/7

13:00-09:35

3 stops53h 35m

$687

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Fri 10/7

13:00-09:45

3 stops53h 45m

$738

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Sorted by cheapest first

Best time to book a flight from Sydney to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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. Reviews last updated 29 June 2026.
Read through reviews of airlines operating flights from Sydney to Belfast, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,082 reviews
Check prices

Entertainment

6.4

Comfort

6.8

Food

6.4

Boarding

6.9

Crew

7.7

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,June 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,082 reviews
British Airways
6.7
Okay
8,082 reviews
Check prices

Entertainment

6.4

Comfort

6.8

Food

6.4

Boarding

6.9

Crew

7.7

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,June 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

Related info for your journey

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

    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. 1 airline have flights from Kingsford Smith to Belfast on a regular basis. Booking flights from Sydney Kingsford Smith to Belfast should not be difficult; the airport handles an average of 0 outbound flights to Belfast per day.

  • How long is the flight from Sydney to Belfast?

    Departing from Sydney to Belfast will take you 28h 55m. The distance between Sydney and Belfast is about 17094 km.

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

    British Airways, at $1,769, was found to be the cheapest airline from Sydney to Belfast.. British Airways is 19% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sydney to Belfast 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Belfast

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

Top airline flying from Sydney to Belfast

Discover the top airline that operate flights from Sydney to Belfast. 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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,769Average$2,237FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Belfast from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

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

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