Which Port?

Have you tried Eurotunnel:-
http://www.eurotunnel.com/uk/home/?utm_source=Google&utm_medium=cpc&utm_term=France_Ferry&utm_campaign=Volume_Terms_-_Ferry

I think Ferry prices have increased since last year. We paid £28 round trip with Norfolk Lines from Dunkerque a couple of times last year (though I think that was booking well ahead). We paid £65 with P & O for Dover-Calais last week. Eurotunnel are asking £84 round trip for short stays. We are doing the crossing again in two weeks time and I have been coming up with prices around £70, I haven't tried Sea France and I'm having trouble getting a price from Norfolk Lines (now DFDS).

Compared with last year the prices do seem high though I do remember when it used to cost over £200 for a return ticket. I guess we have got spoiled over the last few years.

Norfolk Lines are charging around £45 return for the two hour Dover to Dunkerque trip.

Doh.. Sorry it's Dover Calais...

Prices seem to be infinitely variable!!! It's probably cheapest to travel in the middle of the night or well before dawn.