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$895+ 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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
— BFS
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Return from

$1,705

One-way from

$983

Popular in

July

Cheapest in

June

Average price

$2,246
17/10-20/10
  • 17/10-20/10
  • 6 total stops
  • 83h 25m total
  • Sydney to Belfast
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15/12
  • 15/12
  • 3 total stops
  • 48h 45m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($273 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($218 potential savings vs. average return price).
Search Deals
Average for return flights in September 2025
Search Deals

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 17 September 2025.

Fri 17/1013:50SYD - BFS
3 stops42h 45mMultiple Airlines
Mon 20/1017:30BFS - SYD
3 stops40h 40mMultiple Airlines
Deal found 16/9$1,705
Thu 30/1012:00SYD - BFS
2 stops45h 20mMultiple Airlines
Thu 6/1106:30BFS - SYD
2 stops44h 05mMultiple Airlines
Deal found 14/9$2,134
Sat 1/1121:15SYD - BFS
3 stops35h 25mMultiple Airlines
Sat 8/1122:25BFS - SYD
2 stops32h 30mMultiple Airlines
Deal found 17/9$2,370

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 17 September 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 17/10

16:40-10:55

2 stops28h 15m

Belfast Intl

Mon 20/10

17:30-20:10

3 stops40h 40m

$1,904

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 30/10

12:00-22:20

2 stops45h 20m

Belfast Intl

Thu 6/11

06:30-13:35

2 stops44h 05m

$2,134

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 1/11

21:15-21:40

3 stops35h 25m

Belfast Intl

Sat 8/11

22:25-17:55

2 stops32h 30m

$2,370

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 15/11

10:45-07:25

3 stops55h 40m

$895

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 15/12

06:35-20:20

3 stops48h 45m

$983

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 19/12

11:40-08:50

3 stops56h 10m

$1,326

Flights are sorted by cheapest return flights first.

Deals found on 17/9

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

What are the cheapest airlines that fly to Belfast Intl?

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

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 17 September 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
7,363 reviews
Check prices

Comfort

6.7

Food

6.3

Crew

7.6

Entertainment

6.4

Boarding

6.9

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.
British Airways
6.7
Okay
7,363 reviews
British Airways
6.7
Okay
7,363 reviews
Check prices

Comfort

6.7

Food

6.3

Crew

7.6

Entertainment

6.4

Boarding

6.9

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.

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, British 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, Melbourne offers the quickest one-way flight (29 hours 0 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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How does Cheapflights help users find flights to Belfast Intl?

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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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