Cheapest one-way flights from Southampton to Belfast in March from 30€

AirHint found the following cheapest one-way flights from Southampton (SOU) to Belfast (BFS) in March 2026 (see full year).

One-Way flights

30 Mar easyJet direct
29 Mar easyJet direct
31 Mar Aer Lingus direct
24 Mar Aer Lingus direct
25 Mar Aer Lingus direct
23 Mar Aer Lingus direct
21 Mar Aer Lingus direct
22 Mar Loganair
28 Mar Aer Lingus direct
22 Mar Aer Lingus direct

Also check the deals for return flights from Southampton to Belfast in March.

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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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