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Look for other cheap flights to Belfast

$839 Cheap flights to Belfast

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 departing on 15/6. 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

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
16:20 - 08:25
SYD
-
BHD
27h 05m
2 stops
British Airways Logo
15:05 - 06:55
BHD
-
SYD
28h 50m
2 stops
$1,791British Airways
Sun, 15 Mar - Thu, 19 Mar
British Airways Logo
14:35 - 13:35
SYD
-
BHD
32h 00m
2 stops
British Airways Logo
19:10 - 06:05
BHD
-
SYD
49h 55m
2 stops
$1,818British Airways
Wed, 6 May - Sun, 10 May
British Airways Logo
10:10 - 12:00
SYD
-
BHD
34h 50m
2 stops
British Airways Logo
19:10 - 06:05
BHD
-
SYD
49h 55m
2 stops
$1,819British Airways
Wed, 13 May - Sun, 7 Jun
British Airways Logo
14:35 - 12:00
SYD
-
BHD
30h 25m
2 stops
British Airways Logo
11:00 - 06:05
BHD
-
SYD
34h 05m
2 stops
$1,820British Airways
Wed, 6 May - Sun, 10 May
British Airways Logo
14:35 - 12:00
SYD
-
BHD
30h 25m
2 stops
British Airways Logo
11:00 - 06:05
BHD
-
SYD
34h 05m
2 stops
$1,822British Airways
Wed, 6 May - Sun, 10 May
British Airways Logo
10:10 - 08:50
SYD
-
BHD
31h 40m
2 stops
British Airways Logo
20:10 - 06:05
BHD
-
SYD
48h 55m
2 stops
$1,825British Airways
Wed, 13 May - Sun, 7 Jun
British Airways Logo
14:35 - 13:35
SYD
-
BHD
32h 00m
2 stops
British Airways Logo
20:10 - 06:05
BHD
-
SYD
48h 55m
2 stops
$1,826British Airways
Wed, 6 May - Sun, 10 May
British Airways Logo
10:10 - 20:35
SYD
-
BHD
43h 25m
2 stops
British Airways Logo
11:35 - 06:05
BHD
-
SYD
33h 30m
2 stops
$1,832British Airways
Sun, 24 May - Wed, 24 Jun
Multiple Airlines Logo
21:30 - 20:55
SYD
-
BFS
32h 25m
2 stops
Multiple Airlines Logo
08:40 - 06:10
BFS
-
SYD
36h 30m
2 stops
$1,847Multiple Airlines
Mon, 6 Apr - Mon, 13 Apr
Multiple Airlines Logo
21:30 - 20:55
SYD
-
BFS
32h 25m
2 stops
Multiple Airlines Logo
08:40 - 06:10
BFS
-
SYD
36h 30m
2 stops
$1,849Multiple Airlines
Mon, 6 Apr - Mon, 13 Apr

momondo Fare Finder

 
Locate flights to Belfast 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 21 February 2026.
Use the filters below to find and compare flights to Belfast that are best for you.

Fly from

Route

Depart

Return

Price

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 15/3

16:20-08:25

2 stops27h 05m

Belfast City

Thu 19/3

15:05-06:55

2 stops28h 50m

$1,791

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:35-13:35

2 stops32h 00m

Belfast City

Sun 10/5

19:10-06:05

2 stops49h 55m

$1,818

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 13/5

10:10-12:00

2 stops34h 50m

Belfast City

Sun 7/6

19:10-06:05

2 stops49h 55m

$1,819

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:35-12:00

2 stops30h 25m

Belfast City

Sun 10/5

11:00-06:05

2 stops34h 05m

$1,820

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:35-12:00

2 stops30h 25m

Belfast City

Sun 10/5

11:00-06:05

2 stops34h 05m

$1,822

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 13/5

10:10-08:50

2 stops31h 40m

Belfast City

Sun 7/6

20:10-06:05

2 stops48h 55m

$1,825

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Wed 6/5

14:35-13:35

2 stops32h 00m

Belfast City

Sun 10/5

20:10-06:05

2 stops48h 55m

$1,826

SydneyBelfast

SYD - BHD

SYDBHD

Sydney Kingsford Smith

Sun 24/5

10:10-20:35

2 stops43h 25m

Belfast City

Wed 24/6

11:35-06:05

2 stops33h 30m

$1,832

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 6/4

21:30-20:55

2 stops32h 25m

Belfast Intl

Mon 13/4

08:40-06:10

2 stops36h 30m

$1,847

SydneyBelfast

SYD - BFS

SYDBFS

Sydney Kingsford Smith

Mon 6/4

21:30-20:55

2 stops32h 25m

Belfast Intl

Mon 13/4

08:40-06:10

2 stops36h 30m

$1,849

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

Belfast flights insights and trends

Explore insights for your Belfast flight to craft the best travel plan

How long does it take to fly to Belfast?

The flight from Australia to Belfast depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Sydney Kingsford Smith (a popular airport in Australia) to Belfast Intl (the most popular airport in Belfast), then the flight time is 27h 45m on average. If you fly from Melbourne (another popular airport in Australia) to Belfast Intl, then the average flight time is 28h 25m.

Cheapest flights to Belfast

Find the cheapest flights to Belfast from your nearest city or airport
Find flights from Sydney to Dublin
CHEAPEST MONTH TO FLY TO BELFAST FROM SYDNEYOctober3% cheaperFlying from Sydney to Belfast costs on average just $1,806 in October
MOST EXPENSIVE MONTH TO FLY TO BELFAST FROM SYDNEYJuly82% more expensiveIt costs about $3,393 for flights to Belfast from Sydney in July
MOST POPULAR MONTH TO FLY TO BELFAST FROM SYDNEYDecember216% more users visitedMore momondo users searched in flights to Belfast from Sydney in December than any other month

Cheap Belfast flight deals and tips

Summary info about Belfast flight prices, duration and airlines

Best One-Way Price

$839

Best Round-Trip Price

$1,791

Fastest flight time

42h 30m

Popular in

July
The best one-way flight price to Belfast from Australia in the last 72 hours is $839 (Sydney Kingsford Smith to Belfast Intl).
Search Deals
The best round-trip flight price to Belfast from Australia in the last 72 hours is $1,791 (Sydney Kingsford Smith to Belfast City).
Search Deals
The fastest flight to Belfast from Australia takes 42h 30m (Brisbane to Belfast City).
Search Deals
July has the highest demand for flights to Belfast, with a 5% price increase on average.
Search Deals

Frequently asked questions about flying to Belfast

What is the cheapest month to fly to Belfast?

The month of May is another great option to travel to Belfast, with average flight prices from Australia averaging around $1,832.

Is there an alternative airport near Belfast?

Belfast City Airport, Londonderry Eglinton Airport, Campbeltown Machrihanish Airport, Isle of Islay Glenegedale Airport or Glasgow Prestwick Airport can be an alternative airport used for travel to Belfast.

Is there a cheaper alternative to flying into Belfast?

You can find deals at Belfast City Airport for $145 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Belfast?

Users booking trips to Belfast from London found flights 33% cheaper than the average price of flights to Belfast. To find the cheapest price to Belfast from your area, use momondo’s Airport-to-Airport Pricing Tool.

Are there flights to City Centre?

Yes, you can get a flight to Belfast City airport in Belfast (4.4 km from City Centre).

When did momondo last update prices for flights to Belfast?

Prices for flights to Belfast are updated daily.

How many operators does momondo search for flights to Belfast?

The number of operators available for flights to Belfast is 3 as of February 2026.

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

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.

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

The travel and health documents required for your trip to Belfast 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. 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight to Belfast. momondo saves you time and could save you money on your trip.

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 for flights to Belfast, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to Belfast and let you know when they change.

An easier way to manage your Belfast trip

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Find better results for your trip to Belfast

Popular Flights to Belfast

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to Belfast Flightsfrom $1,283
Melbourne to Belfast Flightsfrom $1,401
Brisbane to Belfast Flightsfrom $1,366