So if your dog travels with you, it will be via the eurotunnel, a ferry or (if you have tons of cash to spare) a commercial flight.
Dunno about that. Our hound came to Poland with us last year in a nice big travelling cage, cost about 30 euros return Orly to Prague (yes, I know Prague isn't in Poland but it was nearest airport), heated hold, brought to us as we walked off the aircraft at Prague. At Orly on the return he had to ride the carousel but that didn't seem to bother him any. He had room to lie down, turn around. More than we did! Happy dog, SkyEurope looked after him well, let him stay with us upto the last minute before boarding and I will cheerfully use them again any time we travel with pets. The other good guys for pets are Speed Ferries. Interesting, the cheap guys are making an effort.......None of the major carriers were the least bit helpful but we got a rock bottom price and five star service. Same for the car hire, cheapest quote got us friendly and professional service.