Pet policies of European airlines.

* Guide/Assistance dogs are accepted by almost all (but not all and not on every route) airlines free of charge.

* You must always make a reservation by telephone or online (some airlines require passengers to make a reservation exclusively by phone) and on the whole not later than 24-48 hours before departure.

* Max or total weight describes weight of pet + its travel bag/carrier/container/kennel.

* Transportation fees will be lower on domestic flights of airlines, then goes traveling within a specific continent. Usually you'll have to pay more on intercontinental routes.

* Sometimes it's hard to determine even an approximate fee without knowing an exact route (as for Turkish Airlines).

* By airlines as pets are often understood only cats and dogs.

* Most airlines not accepting animals as carry-on or checked / hold baggage will accept them to be carried as cargo: then your pet has to be checked in through cargo terminal (what will cost you some extra time and money).

* Usually no more than 2 animals per flight are allowed.

* As a rule, charges are listed per one way only.

* If your pet is traveling as checked-in baggage and transfer time at an airport exceeds 2 hours, you're sometimes required to pay an additional fee for the animal’s care during this transfer (look at rules of KLM, for example — €150 or $200).

* Your pet container/carrier/bag/kennel is considered to be your carry-on bag (usually the first and the only one).

* You'll be able to check in only at check-in counter (no curbside or self-service check-in is allowed, when you carry a pet).

* Many European airports do not accept checked baggage heavier than 32 kg: so if the weight of your pet and its kennel is more than that, you'll have to register and transport it as cargo (on domestic flight weight limits are still considerably higher).

* A lot of airlines introduced restriction on carriage of snub-nosed (brachycephalic) animals. According to IATA recommendations, snub-nosed breeds require 10% larger container, but, for example, Air France won't accept your animal for carriage in the cargo hold and Aeroflot will refuse to carry your snub-nosed dog at all (either in the cargo area or in the cabin) on its flights.
Breeds of snub-nosed dogs: Boston Terrier, Affenpinscher, Boxer (all breeds), Brussels Griffon, Bulldog (all breeds), Cane Corso, Chow Chow, Dogue De Bordeaux, English Toy Spaniel, Japanese Spaniel (Chin), Lhasa Apso, Mastiff (all breeds), Pekingese, Pit Bull, Presa Canario, Pug (all breeds), Staffordshire Bull Terrier, Shar Pei, Shih Tzu, Tibetan Spaniel.
Breeds of snub-nosed cats: Burmese, Exotic, Himalayan, Persian, British Shorthair, Scottish Fold.