Irish Ferries offers for sailing accross the Irish Sea
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Irish Sea 2026 – Book now and get a FREE Flexi upgrade
Plan ahead and sail smarter.
Book your 2026 crossing on the Irish Sea and enjoy a FREE upgrade to a Flexi fare — giving you extra peace of mind and flexibility for your trip at no extra cost.
What’s included
- Free upgrade: Pay for Economy, sail on Flexi
- Applies to both single and return fares
- Valid on the routes:
• Dublin ↔ Holyhead
• Rosslare ↔ Pembroke - Available for cars, motorbikes, trikes and foot passengers
- Travel period: 6 January – 2 November 2026
- Book by: 10 November 2025
Why choose a Flexi fare
Flexi fares give you the freedom to change your booking up to 24 hours before departure with no amendment fee – you’ll only pay the fare difference if applicable.
Perfect for travellers who like to keep plans flexible or adjust return times with ease.
How to claim the offer
No code needed – simply book your sailing before 10 November 2025 and the discount is automatically applied.
You’ll see Flexi fares priced the same as Economy fares during Step 2 of the booking process.
Key conditions
- Valid for new bookings only on the Irish Sea routes listed above
- Travel must be booked at least 24 hours before departure
- Offer applies to Flexi and Flexi+ fares (vehicle or foot passenger)
- Not valid for freight bookings
- Non-web bookings may incur a service fee
- Subject to availability and cannot be combined with other promotions
