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$966+ Cheap flights to Belfast Intl

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
— BFS
19 Aug — 26 Aug1
1 adult

Flights to Belfast Intl in 2025

Find the latest flights to Belfast Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 14 August 2025.

Return from

$1,967

One-way from

$966

Popular in

December

Cheapest in

June

Average price

$2,173
4/10-24/10
  • 4/10-24/10
  • 4 total stops
  • 70h 25m total
  • Sydney to Belfast
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4/9
  • 4/9
  • 2 total stops
  • 44h 55m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($1,119 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease ($261 potential savings vs. average return price).
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Average for return flights in August 2025
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Find flight deals to Belfast Intl Airport

Cheapest flights to Belfast Intl Airport
Explore the most affordable flight options available to Belfast Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 14 August 2025.

Sun 28/915:40SYD - BFS
3 stops39h 40mMultiple Airlines
Sun 5/1014:55BFS - SYD
3 stops33h 50mMultiple Airlines
Deal found 13/8$2,149
Fri 26/909:15SYD - BFS
3 stops46h 20mMultiple Airlines
Fri 3/1009:50BFS - SYD
3 stops38h 55mMultiple Airlines
Deal found 12/8$2,393
Thu 4/920:55SYD - BFS
3 stops32h 40mMultiple Airlines
Tue 28/408:15BFS - SYD
3 stops49h 45mMultiple Airlines
Deal found 13/8$2,878
Sat 4/1020:45SYD - BFS
2 stops29h 25mMultiple Airlines
Fri 24/1006:05BFS - SYD
2 stops28h 20mMultiple Airlines
Deal found 11/8$2,915
Sat 27/919:45SYD - BFS
3 stops36h 10mMultiple Airlines
Sat 4/1012:35BFS - SYD
3 stops36h 10mMultiple Airlines
Deal found 13/8$2,963

Cheapflights Fare Finder

 
Locate flights to Belfast Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 14 August 2025.
Use the filters below to find and compare flights to Belfast Intl Airport that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 12/9

20:30-20:05

2 stops32h 35m

Belfast Intl

Tue 7/10

06:15-10:00

2 stops41h 45m

$2,268

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 26/9

09:15-22:35

3 stops46h 20m

Belfast Intl

Fri 3/10

09:50-09:45

3 stops38h 55m

$2,393

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 25/9

12:50-23:30

3 stops43h 40m

Belfast Intl

Thu 2/10

06:10-09:45

3 stops42h 35m

$2,398

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 4/10

20:45-17:10

2 stops29h 25m

Belfast Intl

Fri 24/10

06:05-20:25

2 stops28h 20m

$2,915

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 27/9

19:45-22:55

3 stops36h 10m

Belfast Intl

Sat 4/10

12:35-09:45

3 stops36h 10m

$2,963

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 4/9

11:00-09:10

3 stops55h 10m

$966

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 15/9

14:15-19:05

2 stops37h 50m

$983

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 20/12

21:25-19:55

2 stops33h 30m

$2,104

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Best time to book a flight to Belfast Intl

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

How long is the flight to Belfast Intl?

On average, a flight from Sydney to Belfast Intl takes 29 hours 10 minutes. Flights to Belfast Intl from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Belfast Intl?

The most popular airline flying from Sydney to Belfast Intl is British Airways.

British Airways
British Airways
From $1,054
Qatar Airways
Qatar Airways
From $1,013

What are the cheapest airlines that fly to Belfast Intl?

The cheapest airline flying from Sydney to Belfast Intl is British Airways.

Rainfall in Belfast Intl by month

Plan your trip to Belfast Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast Intl ranges from 50.0 - 90.0 mm per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast Intl when rainfall is around 50.0 mm.

Temperature in Belfast Intl by month

Plan your trip to Belfast Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast Intl, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 14 August 2025.
Read through reviews of airlines serving the United Kingdom, 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
7,266 reviews
Check prices

Food

6.3

Entertainment

6.4

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

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
7,266 reviews
British Airways
6.7
Okay
7,266 reviews
Check prices

Food

6.3

Entertainment

6.4

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

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

FAQs about flying to Belfast Intl

  • Can I find cheaper flights to Belfast Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Belfast Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Belfast Intl?

    Based on reviews from Cheapflights users, Qatar Airways is rated the highest out of the airlines that fly to Belfast Intl.

  • Where does the fastest flight to Belfast Intl depart from?

    For those looking to save time traveling to Belfast Intl, Sydney Kingsford Smith offers the quickest one-way flight (29 hours 10 minutes).

  • Does Belfast Intl have car hire?

    Yes. Those touching down at Belfast Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Belfast Intl?

    Yes. Belfast Intl has hotels nearby for those requiring accommodations. Maldron Hotel Belfast Airport is the closest property to Belfast Intl (0.0 km away from Belfast Intl).

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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Users can book flights with no change fees policies with our dedicated filters. Book flights to Belfast Intl flexibly with Cheapflights today.

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