Ferrysavers are offering 10% off various LD lines for next summer, including Portsmouth to LeHavre. To the end of November. I got it in a mass mail: here's the link:
Just booked for Aug next year - about £200 less than Brittany ferries.Click here
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Even with 10% off the crossing we wanted would be £540, going via dover the cost of overnight stop, fuel and tolls is £225 its cheaper to go via dover and have a stop over, LD Lines have become just as bad as Brittany ferries, sorry its will be a long time before we use them again.