Buying a "ticket" for your dog in 2026 is actually a process of adding a "Pet in Cabin" or "Pet in Hold" service to your own reservation, rather than purchasing a standard seat. For a small dog (under 20 lbs including the carrier) to travel in the cabin, you typically book this through the airline's "Manage Trip" section or by calling their customer service line; fees usually range from $95 to $150 each way. It is a high-fidelity requirement to book early, as airlines strictly limit the number of pets allowed per flight (often just 2 to 6). For larger dogs, you must book them as "Checked Baggage" or "Cargo," which requires a sturdy, IATA-approved hard crate and a separate booking process. In 2026, you must also provide "High-Fidelity" proof of a valid health certificate issued by a vet within 10 days of travel and ensure your dog meets the US CDC import requirements (like microchipping) if flying into the United States. Always call the airline to confirm the "Pet Space" is available before you finalize your own high-fidelity ticket.