$1,706+ Cheap flights to Belfast Intl
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
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 20 March 2025.
Find flight deals to Belfast Intl Airport
Cheapest flights to Belfast Intl AirportExplore 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 20 March 2025.
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 20 March 2025.
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 20 March 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
Thu 1/5
11:00-09:10
2 stops55h 10m
Belfast Intl
Sat 31/5
06:00-12:35
2 stops45h 35m
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.
Cheapflights Insights
Everything you need to know about your flight to Belfast Intl Airport
How long is the flight to Belfast Intl?
On average, a flight from Sydney to Belfast Intl takes 29 hours 30 minutes. Flights to Belfast Intl from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.
What are the most popular airlines that fly to Belfast Intl?
The most popular airline flying from Sydney to Belfast Intl is British Airways.
What are the cheapest airlines that fly to Belfast Intl?
The cheapest airline flying from Sydney to Belfast Intl is British Airways.
Rainfall in Belfast Intl by month
Plan your trip to Belfast Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Belfast Intl ranges from 50.0 - 90.0 mm per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast Intl when rainfall is around 50.0 mm.
Temperature in Belfast Intl by month
Plan your trip to Belfast Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Belfast Intl, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
FAQs about flying to Belfast Intl
Travelling to a place near Belfast Intl Airport?
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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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