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Look for other cheap flights to Belfast Intl

$890 Cheap flights to Belfast Intl Airport

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Belfast Intl Airport departing on 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Australia to Belfast Intl Airport

Cheap return flights

Logo
12:50 - 22:00SYD-BFS
42h 10m3 stops
Logo
08:15 - 07:20BFS-SYD
38h 05m3 stops
$2,095
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Logo
11:00 - 20:35MEL-BFS
42h 35m2 stops
Logo
06:10 - 10:00BFS-MEL
41h 50m2 stops
$2,127
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Logo
11:00 - 20:35BNE-BFS
42h 35m2 stops
Logo
06:10 - 09:00BFS-BNE
41h 50m2 stops
$2,130
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Logo
12:50 - 22:00SYD-BFS
42h 10m3 stops
Logo
06:10 - 19:30BFS-SYD
28h 20m2 stops
$2,333
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Logo
11:00 - 22:00BNE-BFS
44h 00m3 stops
Logo
06:10 - 09:30BFS-BNE
42h 20m3 stops
$2,475
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Logo
20:10 - 21:40SYD-BFS
34h 30m2 stops
Logo
08:10 - 18:20BFS-SYD
48h 10m2 stops
$2,522
Find Deal
Thu, 2 Oct - Thu, 9 Oct
Logo
15:40 - 18:35SYD-BFS
35h 55m3 stops
Logo
06:10 - 19:30BFS-SYD
28h 20m2 stops
$2,575
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Logo
06:35 - 15:00BNE-BFS
41h 25m3 stops
Logo
08:15 - 09:55BFS-BNE
40h 40m3 stops
$2,596
Find Deal
Tue, 30 Sep - Tue, 7 Oct
Logo
15:10 - 15:00BNE-BFS
32h 50m2 stops
Logo
06:15 - 09:55BFS-BNE
42h 40m3 stops
$2,668
Find Deal
Tue, 30 Sep - Tue, 7 Oct
Logo
11:00 - 09:55SYD-BFS
31h 55m2 stops
Logo
06:10 - 19:30BFS-SYD
28h 20m2 stops
$2,685
Find Deal
Wed, 10 Sep - Wed, 17 Sep

momondo Fare Finder

 
Locate flights to Belfast Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 18 August 2025.
Use the filters below to find and compare flights to Belfast Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 10/9

12:50-22:00

3 stops42h 10m

Belfast Intl

Wed 17/9

08:15-07:20

3 stops38h 05m

$2,095

MelbourneBelfast

MEL - BFS

MELBFS

Melbourne

Wed 1/10

11:00-20:35

2 stops42h 35m

Belfast Intl

Wed 8/10

06:10-10:00

2 stops41h 50m

$2,127

BrisbaneBelfast

BNE - BFS

BNEBFS

Brisbane

Wed 1/10

11:00-20:35

2 stops42h 35m

Belfast Intl

Wed 8/10

06:10-09:00

2 stops41h 50m

$2,130

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 10/9

12:50-22:00

3 stops42h 10m

Belfast Intl

Wed 17/9

06:10-19:30

2 stops28h 20m

$2,333

BrisbaneBelfast

BNE - BFS

BNEBFS

Brisbane

Wed 1/10

11:00-22:00

3 stops44h 00m

Belfast Intl

Wed 8/10

06:10-09:30

3 stops42h 20m

$2,475

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Thu 2/10

20:10-21:40

2 stops34h 30m

Belfast Intl

Thu 9/10

08:10-18:20

2 stops48h 10m

$2,522

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 10/9

15:40-18:35

3 stops35h 55m

Belfast Intl

Wed 17/9

06:10-19:30

2 stops28h 20m

$2,575

BrisbaneBelfast

BNE - BFS

BNEBFS

Brisbane

Tue 30/9

06:35-15:00

3 stops41h 25m

Belfast Intl

Tue 7/10

08:15-09:55

3 stops40h 40m

$2,596

BrisbaneBelfast

BNE - BFS

BNEBFS

Brisbane

Tue 30/9

15:10-15:00

2 stops32h 50m

Belfast Intl

Tue 7/10

06:15-09:55

3 stops42h 40m

$2,668

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Wed 10/9

11:00-09:55

2 stops31h 55m

Belfast Intl

Wed 17/9

06:10-19:30

2 stops28h 20m

$2,685

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast Intl Airport from

Flights to Belfast Intl Airport – Travel Insights & Trends

Get data-powered insights and trends for flights to Belfast Intl Airport to help you craft the best travel plan.

What is the cheapest day to depart on your flight to Belfast Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Belfast Intl Airport. Tickets to fly out on this day can be as low as $2,077. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Australia to Belfast Intl Airport for around $2,454.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

According to our data, the cheapest time of day to fly to Belfast Intl Airport is in the afternoon. momondo users have found flights departing from Australia to Belfast Intl Airport in the afternoon for as low as $2,210. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive, with an average ticket price of $3,517.

Cheapest flights to Belfast Intl

Find the cheapest flights to Belfast Intl from your nearest city or airport
Find flights from Sydney to Belfast Intl Airport
CHEAPEST MONTH TO FLY TO BELFAST INTL AIRPORT FROM SYDNEYJune28% cheaperFlying from Sydney to Belfast Intl Airport costs on average just $1,608 in June
MOST EXPENSIVE MONTH TO FLY TO BELFAST INTL AIRPORT FROM SYDNEYDecember86% more expensiveIt costs about $4,116 for flights to Belfast Intl Airport from Sydney in December
MOST POPULAR MONTH TO FLY TO BELFAST INTL AIRPORT FROM SYDNEYOctober266% more users visitedMore momondo users searched in flights to Belfast Intl Airport from Sydney in October than any other month

Cheap Belfast Intl Airport flight deals and tips

Summary info about Belfast Intl Airport flight prices, duration and airlines

Best One-Way Price

$890

Best Round-Trip Price

$2,095

Fastest flight time

29h 40m

Popular in

July
The best one-way flight price to Belfast from Australia in the last 72 hours is $890 (Brisbane to Belfast Intl).
Search Deals
The best round-trip flight price to Belfast from Australia in the last 72 hours is $2,095 (Sydney Kingsford Smith to Belfast Intl).
Search Deals
The fastest flight to Belfast from Australia takes 29h 40m (Brisbane to Belfast Intl).
Search Deals
July has the highest demand for flights to Belfast, with a 7% price increase on average.
Search Deals

Frequently asked questions about flying to Belfast Intl Airport

What is the cheapest month to fly to Belfast Intl Airport?

In general, when looking for the cheapest flight to Belfast Intl Airport, try to choose a flight departing in June for the best deal.

What is the cheapest day to depart on your flight to Belfast Intl Airport?

From most locations, the cheapest day to fly to Belfast Intl Airport is Wednesday. Most users found that departing on a Sunday was most expensive.

What is the cheapest time of day to fly to Belfast Intl Airport?

In general, when looking for the cheapest flight to Belfast Intl Airport, our data indicates that Midday flights are the most cost-effective. Evening flights tend to be the most expensive.

Is there an alternative airport near Belfast Intl Airport?

Finding an alternative and possibly cheaper destination airport near Belfast Intl Airport is possible. If you are planning a flight to Belfast Intl Airport, consider booking flights to Belfast City Airport (4 km from Belfast city centre), Londonderry Eglinton Airport (93 km from Belfast city centre), Campbeltown Machrihanish Airport (95 km from Belfast city centre), Isle of Islay Glenegedale Airport (122 km from Belfast city centre) or Glasgow Prestwick Airport (132 km from Belfast city centre).

Is there a cheaper alternative to flying into Belfast?

You can find deals at Belfast City Airport for $141 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Belfast Intl Airport?

Prices for flights to Belfast Intl Airport are updated daily.

How many operators does momondo search for flights to Belfast Intl Airport?

The number of operators available for flights to Belfast Intl Airport is 3 as of August 2025.

How old do you have to be to fly to Belfast Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Belfast Intl Airport.

What documentation or ID do you need to fly to Belfast Intl Airport?

The travel and health documents required for your trip to Belfast Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Belfast Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal to Belfast?

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Can I find flights to Belfast with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for flights to Belfast to just show those with flexible booking policies.

How can momondo help me find flights to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Belfast.

I’m not ready to book a flight to Belfast right now. Can momondo alert me if prices change?

Yes. momondo can track flight prices for Belfast and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
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