The Ha’penny Bridge over the River Liffey in Dublin

Cheap flights from Belfast to Dublin

Return fares from £112 in the next 12 months. Pick a day in the calendar to see the fare.

Cheapest return: £112
Typical return: £112
Cheapest one way: £59
Cheapest month: December

Price calendar

Cheapest return fare by departure day, 2–14 nights, direct or with one stop. Green days are the cheapest of the month.

Cheapest return fare per departure day, December 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1–	2–	3–	4–	5–	6–
7–	8–	9–	10–	11–	12–	13–
14–	15–	16–	17–	18–	19–	20–
21–	22–	23–	24–	25–	26–	27–
28–	29£112 return, back 2 Jan	30–	31–

Cheapest dates

Tue 29 Dec – Sat 2 Jan · 4 nights
Ryanair UK · 1 stop
£112Check price ↗

One-way flights

Cheapest one-way fare per month, 1 adult.

Thu 19 Nov
1 stop
£59
Check price ↗

Belfast to Dublin: questions

How much is a flight from Belfast to Dublin?: In the fares we found for the next 12 months, return flights start at £112 and the median is £112 (1 fare, 2–14 nights, 1 adult). One way starts at £59.
Are there direct flights from Belfast to Dublin?: Not in the fares we found: they all have a stop.
Which airlines fly from Belfast to Dublin?: In our fares: Ryanair UK.

Dublin from other UK airports

Prices are return fares for one adult, found by Aviasales users in the last few days and cached; they can change at any time, and the final price and availability are on Aviasales. Checked bags are extra unless the airline includes them. We may earn a commission when you book through our links; it does not change your price.