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Valid P&O Ferries Promo Codes for August 2026
✓agent-verified & updated·August 18, 2026
Today's Best P&O Ferries Coupons and Promo Codes:
23 offers in totalRound Trip Ticket for £149 at PO Ferries
Get a 36-hour round trip ticket from Cairnryan or Larne by car for only £149 at PO Ferries with this code.
Enjoy 10% Off PO Ferries Hotels
Use this promo code to save 10% on the best rates at P&O Ferries hotels.
15% Off Your PO Ferries Booking
Take 15% off your PO Ferries booking with this coupon code.
Dover to Calais Day Trips From £55
Book an eligible Dover to Calais day trip and get fares from £55 for travel until 31 December 2026. The official deals page lists the offer with a 30 December 2026 book-by date.
Kids Travel Free on Irish Sea Car Bookings
Families booking eligible Cairnryan to Larne travel with a motorised vehicle can add children aged 4 to 15 and have the child fare discounted automatically. The offer applies to qualifying standard return or single bookings for travel between 1 May 2026 and 5 January 2027.
Motorhomes for the Price of a Car on Midweek Cairnryan to Larne Trips
Book an eligible standard motorhome on the Cairnryan to Larne route and pay the same vehicle price as a car on Tuesday, Wednesday, or Thursday sailings. The offer removes the motorhome supplement for qualifying online bookings and applies automatically to the quote.
50% Off Midweek Caravan Travel on Cairnryan to Larne
Travel with a caravan or trailer on the Cairnryan to Larne route and save 50% on eligible midweek sailings. The discount applies to Tuesday, Wednesday, or Thursday travel and is added to the quote during booking.
25% Off Cairnryan to Larne 28 Hour Returns
Save 25% on eligible Cairnryan to Larne return bookings with a stay of up to 28 hours. The offer is valid for qualifying car and motor vehicle bookings and the discount is shown automatically during booking.
5% Off Ferry Crossings for Boundless CSMA Members
Boundless CSMA members can receive 5% off eligible standard single and return journeys, plus short breaks. The discount applies automatically after selecting the member offer and starting the booking through the eligible P&O Ferries page.
Dover to Calais Day Trips From £55
Book eligible Dover to Calais day trips from £55 for a car and up to nine passengers or a motorcycle and up to two passengers. The offer is valid for standard day-trip tickets with travel through December 31, 2026, when booked by December 30, 2026.
No Motorhome Supplements on Midweek Cairnryan to Larne Trips
Book an eligible midweek Cairnryan to Larne sailing with a standard-size motorhome and pay the same vehicle price as a car. The offer is valid for Tuesday, Wednesday, or Thursday travel and applies to online new bookings made more than two days before outward travel.
50% Off Midweek Caravan Travel on Cairnryan to Larne
Get up to 50% off the caravan or trailer portion of eligible Cairnryan to Larne bookings. Travel must be on Tuesday, Wednesday, or Thursday, and the offer applies to new bookings made more than two days before outward travel.
Kids Go Free on Irish Sea Car Bookings
Children travel free on eligible Cairnryan to Larne or Larne to Cairnryan bookings that include a motorised vehicle and at least one child aged 4 to 15. The offer applies to new standard return or single bookings made by August 31, 2026, for travel through January 5, 2027.
25% Off Cairnryan to Larne 28 Hour Returns
Save 25% on eligible return sailings between Cairnryan and Larne when the return trip duration is up to 28 hours. The discount is shown automatically during booking for qualifying cars and motor vehicles, excluding vans, commercial vehicles, and foot passengers.
Other P&O Ferries Deals & Offers
5% Off P&O Ferries Crossings for Boundless CSMA Members
Boundless CSMA members can get 5% off eligible P&O Ferries bookings. The discount applies to standard single and return journeys as well as short breaks on participating routes, and it is applied automatically through the member offer flow.
Short Breaks to France From £110
Take a Dover to Calais short break from £110 for eligible 3-day bookings or from £134 for eligible 5-day bookings. The discounted pricing applies automatically when booking qualifying car or motorcycle short breaks for travel through 31 December 2026.
Day Trips to France From £55
Book a Dover to Calais day trip from £55 with a car or motorcycle on eligible travel dates. The offer applies to standard day-trip bookings for travel through 31 December 2026, with the discount shown automatically in the itinerary.
Midweek Motorhome Offer: Pay the Same Price as a Car
Book eligible midweek Cairnryan to Larne travel with a standard-size motorhome and pay the same price as a car. The offer removes the motorhome supplement for qualifying Tuesday, Wednesday, or Thursday sailings and is applied automatically online.
Midweek Caravan Offer: 50% Off Caravan and Trailer Travel
Travellers with a caravan or trailer can save 50% on the caravan or trailer portion of eligible Cairnryan to Larne bookings. The offer applies to midweek travel on Tuesday, Wednesday, or Thursday and the discount is applied to the quote.
28 Hour Return Offer: 25% Off Cairnryan to Larne Trips
Save 25% on eligible 28-hour return bookings on the Cairnryan to Larne route. The discount is automatically applied during booking for qualifying return trips and is available for cars, high cars, and motor vehicles.
Season Tickets: Save on Frequent Ferry Crossings
Frequent P&O Ferries travellers can purchase a season ticket to pay less per trip on eligible routes. The offer is positioned for repeat travel and includes flexible travel benefits with no listed end date.
Free Flexi Ticket Upgrade to Northern Ireland
Use this code to enjoy a free flexi ticket upgrade when you book a trip to Northern Ireland or Scotland at P&O Ferries.
Get 20% Off at PO Ferries
Apply this promo code to save 20% on eligible PO Ferries purchases.
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