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Best Time to Fly from Belfast to Dublin
Real weather data for Dublin by month and real day-of-week fare patterns for this route — so "best time" here means something you can check, not a generic guess.
General booking pattern
Without route-specific fare history, the general industry pattern holds: mid-week flights — especially Tuesday and Wednesday — tend to be cheaper than weekend departures. This is general advice, not a fact about this specific route.
Weather in Dublin by month
Based on the last 3 years of real historical data. August runs warmest (20°C avg high). February runs driest (~52mm rain).
January
8° / 3°C
~75mm rain
February
10° / 5°C
~52mm rain
March
11° / 5°C
~94mm rain
April
13° / 6°C
~102mm rain
May
17° / 9°C
~53mm rain
June
19° / 11°C
~70mm rain
July
19° / 12°C
~118mm rain
August
20° / 12°C
~70mm rain
September
17° / 10°C
~103mm rain
October
14° / 9°C
~91mm rain
November
11° / 6°C
~87mm rain
December
10° / 5°C
~79mm rain
Nearby airports
Near Belfast
- George Best Belfast City Airport (BHD)23 km
- City of Derry Airport (LDY)74 km
- Campbeltown Airport (CAL)93 km
More about this route
FAQs — Best time to fly Belfast to Dublin
We don't have a live fare history for this specific route yet — mid-week departures (Tuesday and Wednesday) are typically cheaper as a general industry pattern.