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$568+ 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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
— BFS
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Belfast Intl in 2025

Enter your travel dates to find the best prices.

Best flights to Belfast Intl Airport
Discover carefully curated flight deals to Belfast Intl Airport that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 December 2025.

Fri 13/221:15SYD - BFS
3 stops46h 40mMultiple Airlines
Fri 20/206:30BFS - SYD
3 stops49h 50mMultiple Airlines
Deal found 30/12$1,799
Thu 12/212:00SYD - BFS
3 stops40h 35mMultiple Airlines
Thu 19/221:05BFS - SYD
2 stops33h 50mMultiple Airlines
Deal found 28/12$1,972

Find flight deals to Belfast Intl Airport

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 30 December 2025.

Return from

$1,799

One-way from

$568

Popular in

July

Cheapest in

October

Average price

$2,620
13/2-20/2
  • 13/2-20/2
  • 6 total stops
  • 96h 30m total
  • Sydney to Belfast
Search Deals
16/1
  • 16/1
  • 3 total stops
  • 37h 05m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($502 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($112 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
Search Deals

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 30 December 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 13/2

21:15-08:55

3 stops46h 40m

Belfast Intl

Fri 20/2

06:30-19:20

3 stops49h 50m

$1,799

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 12/2

12:00-17:35

3 stops40h 35m

Belfast Intl

Thu 19/2

21:05-17:55

2 stops33h 50m

$1,972

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 16/1

20:40-22:45

3 stops37h 05m

$568

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 12/1

21:15-20:10

3 stops33h 55m

$1,783

Flights are sorted by cheapest return flights first.

Deals found on 29/12

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 30 December 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
7,628 reviews
Check prices

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Comfort

6.7

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
7,628 reviews
British Airways
6.7
Okay
7,628 reviews
Check prices

Overall

6.7

Boarding

6.9

Food

6.4

Crew

7.6

Entertainment

6.4

Comfort

6.7

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.

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 (28 hours 5 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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