The best month to fly between Dublin and London is January and the most expensive month to fly is September. (Average prices, based on 626 datapoints.)
The best day to arrive at Dublin is Thursday and it would be best to avoid Sunday, as prices are on average 78.59% higher than on Thursday. (Average prices, based on 264 datapoints.)
The best time to fly is at around 6. (Average prices, based on 647 datapoints.)