Which is cheaper to fly from, Belfast International Airport or Dublin Airport?

On the routes we checked, neither consistently beat the other — check the table above for the specific destination you're flying to.

Which airlines fly from each?

Airline coverage differs by airport and changes over time — use the search box above or each airport's flights-from page for the current confirmed list.

Is it worth travelling further to the cheaper airport?

Only if the fare difference covers the extra transport cost and time — factor in parking, transit fares, and how much your own time is worth, not just the headline flight price.

Do these prices include getting to the airport?

No — these are flight fares only. Factor in your own transport cost to each airport before deciding which is actually cheaper overall.

Compare Belfast International Airport and Dublin Airport

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Belfast International Airport vs Dublin Airport

Belfast International Airport and Dublin Airport are 138km apart. Below: real live fares from each to a fixed set of reference destinations, so you can see which is actually cheaper for where you're going.

Live fare comparison

Destination	Belfast International Airport	Dublin Airport
Amsterdam	—	€30
Paris	—	€65
New York	—	€346
Dubai	—	€183

Cheaper real fare highlighted per destination. Compared against a fixed reference set, not every possible route.

At a glance

Belfast International Airport (BFS)

Serves Belfast

All flights from here →

Dublin Airport (DUB)

Serves Dublin

All flights from here →

Choosing between them

Compare total journey time, not just flight price — a cheaper fare from the further airport can lose its advantage once you add transport time.
Check parking or transit costs to each airport before deciding — they can outweigh a small fare difference.
Some airlines only operate from one of the two — check the search box above if you have a preferred carrier.
Early or late flights may only run from one airport — check timings alongside price.
If you're catching a connection, check which airport your onward leg actually departs from.

Continue planning your trip to Belfast

Same destination, real availability — no need to search again.

Flights to Belfast Hotels in Belfast Things to do in Belfast Rent a car

Continue planning your trip to Dublin

Same destination, real availability — no need to search again.

Flights to Dublin Hotels in Dublin Things to do in Dublin Rent a car

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FAQs — Belfast International Airport vs Dublin Airport

138km apart in a straight line, based on each airport's real coordinates — actual road or transit time will usually be longer.