Cheap flights from Sydney to Belfast from $772

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — BHD
5 Nov — 12 Nov1
1 adult
1 adult, Economy

Cheap 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 6 October 2025.

Round-trip from

$1,778

Popular in

July

Cheapest in

June

Average price

$2,047
19/11-26/11
  • 19/11-26/11
  • 6 total stops
  • 85h 55m total
  • Sydney to Belfast
Highest demand for flights based on searches. 7% potential increase in price ($280 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease ($223 potential savings vs. average return price).
Average for round-trip flights in October 2025

Find 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 6 October 2025.

Wed 19/1121:15SYD - BFS
3 stops36h 05mMultiple Airlines
Wed 26/1106:30BFS - SYD
3 stops49h 50mMultiple Airlines
Deal found 4/10$1,778
Tue 30/1215:55SYD - BHD
2 stops29h 35mMultiple Airlines
Tue 20/108:45BHD - SYD
2 stops34h 50mMultiple Airlines
Deal found 6/10$3,562

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 6 October 2025.
Use the filters below to find and compare flights from Sydney to Belfast that are best for you.

Fly from

Sydney

Fly to

Belfast

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 19/11

21:15-22:20

3 stops36h 05m

Belfast Intl

Wed 26/11

06:30-19:20

3 stops49h 50m

$1,778

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 12/3

14:30-10:20

2 stops30h 50m

Belfast City

Mon 16/3

11:30-09:35

2 stops35h 05m

$2,308

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 11/3

15:15-09:10

2 stops28h 55m

Belfast City

Sun 15/3

10:40-07:25

2 stops33h 45m

$2,308

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 11/3

11:15-16:50

2 stops40h 35m

Belfast City

Sun 15/3

06:30-07:25

3 stops37h 55m

$2,679

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 12/3

12:10-16:50

2 stops39h 40m

Belfast City

Mon 16/3

06:30-07:25

3 stops37h 55m

$3,018

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 15/1

11:40-22:05

3 stops45h 25m

$772

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Thu 20/11

12:00-17:20

3 stops40h 20m

$2,858

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Fri 12/12

21:30-21:10

3 stops58h 40m

$3,522

Flights are sorted by cheapest return flights first.

Deals found on 4/10

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

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

Currently, June is the cheapest month in which you can book a flight from Sydney to Belfast (average of $1,584). Flying from Sydney to Belfast in December is currently the most expensive (average of $2,562). 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 BFS?

Find hourly flight availability from Sydney to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 22% on flights from Sydney to Belfast by exploring options for tickets at midday.

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 6 October 2025.
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.

Boarding

6.9

Food

6.3

Comfort

6.7

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.

Boarding

6.9

Food

6.3

Comfort

6.7

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

ALG - LGW

Didn't like anything from this flight starting with the lady at the counter. Nasty attitude.

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 30h 50m. The distance between Sydney and Belfast is about 17094 km. This flight may include one or multiple stops.

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

    British Airways, at $1,596, was found to be the cheapest airline from Sydney to Belfast.. British Airways is 28% 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.

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

    Currently, June is the cheapest month in which you can book a flight from Sydney to Belfast (average of $1,584). Flying from Sydney to Belfast in December is currently the most expensive (average of $2,562). 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

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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.

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 6 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$1,596Average$2,212FlexibilityNo 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?

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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