Southampton to Belfast Flights on Aer Lingus from £48.12*

Promo Code

Book Southampton (SOU) to Belfast (BHD) flight deals*

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

Lanyon Building of Queen's University Belfast in Northern Ireland on a sunny day
Email Sign Up
Aer Lingus Newsletter
Sign Up and Save

✔ Be first to receive current offers

✔ Learn about new and exciting destinations

✔ Get the latest travel news and more

Sign Me Up

Book Southampton to Belfast flight deals*

£

Southampton (SOU)to

Belfast (BHD)
8 Oct 2026 - 12 Oct 2026

Each way

Economy

From
£60.12
Seen: 21 hrs ago

Southampton (SOU)to

Belfast (BHD)
24 Sep 2026 - 27 Sep 2026

Each way

Economy

From
£60.62
Seen: 16 hrs ago

Southampton (SOU)to

Belfast (BHD)
10 Sep 2026 - 15 Sep 2026

Each way

Economy

From
£48.12
Seen: 14 minutes ago

Southampton (SOU)to

Belfast (BHD)
14 Oct 2026 - 15 Oct 2026

Each way

Economy

From
£60.12
Seen: 2 hrs ago

Southampton (SOU)to

Belfast (BHD)
17 Oct 2026 - 18 Oct 2026

Each way

Economy

From
£60.62
Seen: 2 hrs ago

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.