Cheapest return flights from London to Dublin in March from $136

Best time to book flights for London (LHR) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Dublin (DUB) in March 2026 (see full year).

Return flights

31 Mar - 21 Apr British Airways direct
12 Mar - 19 Mar Aer Lingus direct
20 Mar - 22 Mar British Airways direct
17 Mar - 19 Mar British Airways direct
04 Mar - 07 Mar British Airways direct
04 Mar - 08 Mar British Airways direct
01 Mar - 15 Mar British Airways direct
06 Mar - 09 Mar British Airways direct
06 Mar - 10 Mar British Airways direct
05 Mar - 10 Mar British Airways direct
26 Mar - 10 Apr British Airways direct
12 Mar - 14 Mar Aer Lingus direct
31 Mar - 14 Apr British Airways direct

Also check the deals for one-way flights from London to Dublin in March.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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