Find flights
Airlines

$929+ 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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
— BFS
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags

Flights to Belfast Intl in 2026

Enter your travel dates to find the best prices.

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 25 March 2026.

Fri 8/515:40
SYD
-
BFS
2 stops29h 15m
Multiple Airlines
Fri 15/517:05
BFS
-
SYD
2 stops28h 05m
Multiple Airlines
Deal found 24/3$1,842
Sun 12/415:40
SYD
-
BFS
2 stops39h 10m
Multiple Airlines
Fri 17/407:05
BFS
-
SYD
2 stops38h 05m
Multiple Airlines
Deal found 20/3$2,000
Sat 23/520:50
SYD
-
BFS
2 stops35h 35m
Multiple Airlines
Fri 12/606:05
BFS
-
SYD
2 stops28h 20m
Multiple Airlines
Deal found 22/3$2,049
Tue 5/520:45
SYD
-
BFS
2 stops33h 10m
Multiple Airlines
Tue 12/506:15
BFS
-
SYD
2 stops25h 55m
Multiple Airlines
Deal found 21/3$2,334
Mon 4/515:40
SYD
-
BFS
2 stops27h 00m
Multiple Airlines
Mon 11/515:35
BFS
-
SYD
2 stops39h 50m
Multiple Airlines
Deal found 20/3$3,784

Find flight deals to Belfast Intl Airport

Find the latest flights to Belfast Intl in 2026, 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 25 March 2026.

Return from

$1,569

One-way from

$929

Popular in

July

Cheapest in

October

Average price

$3,077
13/5-7/6
  • 13/5-7/6
  • 4 total stops
  • 61h 30m total
  • Sydney to Belfast
Search Deals
31/5
  • 31/5
  • 3 total stops
  • 41h 30m total
  • Sydney to Belfast
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($401 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($115 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
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 25 March 2026.
Use the filters below to find and compare flights to Belfast Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Fri 8/5

15:40-11:55

2 stops29h 15m

Belfast Intl

Fri 15/5

17:05-06:10

2 stops28h 05m

$1,842

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 12/4

15:40-21:50

2 stops39h 10m

Belfast Intl

Fri 17/4

07:05-06:10

2 stops38h 05m

$2,000

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sat 23/5

20:50-23:25

2 stops35h 35m

Belfast Intl

Fri 12/6

06:05-19:25

2 stops28h 20m

$2,049

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Tue 5/5

20:45-20:55

2 stops33h 10m

Belfast Intl

Tue 12/5

06:15-17:10

2 stops25h 55m

$2,334

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 4/5

15:40-09:40

2 stops27h 00m

Belfast Intl

Mon 11/5

15:35-16:25

2 stops39h 50m

$3,784
Cheapest one-way
Fastest single journey

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Sun 31/5

15:40-18:25

2 stops35h 45m

$933

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 13/7

20:35-23:20

3 stops35h 45m

$946

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Sorted by cheapest first

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 25 March 2026.
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
7,819 reviews
Check prices

Overall

6.7

Crew

7.6

Comfort

6.8

Entertainment

6.4

Boarding

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance
British Airways
6.7
Okay
7,819 reviews
British Airways
6.7
Okay
7,819 reviews
Check prices

Overall

6.7

Crew

7.6

Comfort

6.8

Entertainment

6.4

Boarding

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance

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 (27 hours 35 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Belfast Intl by cabin class

Find flights to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Premium Economy Class
Economy class

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 to Belfast Intl?

Deals for Belfast Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast Intl.

Can Cheapflights find flights to Belfast Intl with no change fees?

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

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

Yes! Start tracking prices for Belfast Intl flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.