Start with the animal's role and exact route
Airlines usually assess pets and trained service animals under different policies. An emotional-support animal may be treated as a pet by many carriers, while a trained service animal can require specific forms and behavioural assurances.
Country-entry and transit rules apply in addition to airline rules. A carrier's approval does not replace veterinary, customs, quarantine, or border requirements.
Build one checklist with separate decision makers
It helps to record who is responsible for each requirement and the deadline for completing it. That prevents a veterinary certificate from being mistaken for an airline reservation, or an airline email from being mistaken for entry permission.
- Airline: space, carrier size, breed limits, forms, and final transport acceptance.
- Veterinarian: health, vaccination, treatment, and certificate timing.
- Authorities: microchip, import, transit, customs, and quarantine rules.
- Passenger: compliant carrier, originals, copies, and travel-day welfare plan.
Reconfirm when any flight changes
Animal capacity can be limited and partner airlines may apply different rules. If a flight number, operator, aircraft, route, or date changes, ask every relevant party whether its earlier decision still stands.