Pre-travel vet checklist: what your vet checks, when to go, and when a dog should not fly

The pre-travel vet visit is one of the most consequential appointments in a dog's life. A good pre-travel consultation does several things at once: it confirms that your dog is fit to travel in the planned manner (in-cabin, as cargo, or as excess baggage), it catches health conditions that might make travel dangerous, it ensures all documents are in order and correctly completed, and it gives you a medically qualified person to ask the hard questions — including whether this trip is in your dog's best interests.

Not every dog is a safe candidate for air travel. Brachycephalic breeds (flat-faced dogs such as French bulldogs, English bulldogs, pugs, and Boston terriers) face serious respiratory risks in the stress, temperature and pressure conditions of cargo holds, and most airlines have banned them from cargo travel entirely. Very young, very old, pregnant, recently post-operative, or cardiovascularly compromised dogs face their own risks. These are not bureaucratic restrictions — they are based on documented in-flight deaths.

This guide covers the pre-travel timeline, what the vet checks, parasite treatments, vaccination requirements, anxiety and crate readiness, and the key categories of dogs that should not fly — plus alternatives worth considering. As always, requirements vary by destination and airline: verify current regulations with AVS/NParks (Singapore), USDA APHIS (US), or the relevant authority for your origin country, and with your specific airline.

When to see your vet: the pre-travel timeline

The answer depends on whether your destination requires a titer test and whether your dog's vaccination schedule needs updating. For destinations requiring a rabies neutralising antibody titer test (RNATT) — such as Australia, Japan, New Zealand and Hawaii — the minimum preparation window is 6–9 months (see the companion document-stack article). For destinations with simpler requirements, a minimum of 4–6 weeks before travel allows time for vaccinations to become effective and documents to be prepared.

• 6–9 months before travel (if RNATT required): First vet visit. Check microchip, administer or confirm rabies vaccination, draw blood for RNATT. Begin the 180-day clock.
• 4–6 weeks before travel (all destinations): Update core vaccinations if due; administer any required destination-specific vaccines; confirm health is good for travel.
• 2–4 weeks before travel: Parasite treatment per destination requirements (e.g., tapeworm treatment for EU/UK entry); discuss anxiety management and crate acclimatisation.
• 7–10 days before travel: The government veterinary export health certificate is completed — this is the final and most time-sensitive step. Confirm the vet is accredited to issue or endorse the certificate for your specific destination.
• Day before / day of travel: Final check of all documents; confirm no new symptoms; administer any prescribed travel medications per vet instructions.

What the pre-travel vet check covers

A full pre-travel examination is a clinical head-to-tail assessment, not just a document review. Your vet will check the following as a minimum.

• Microchip: scanned and verified as readable; number recorded
• Body weight: recorded (some airlines set weight limits for in-cabin; some destinations reference weight)
• Eyes and ears: no active infection, no signs of pain
• Cardiovascular and respiratory: auscultation of heart and lungs; flag any murmur, arrhythmia or respiratory noise — relevant to in-flight risk
• Musculoskeletal: no obvious lameness or pain that would affect crate comfort
• Skin and coat: no active parasitic infestation (required for the health certificate)
• Temperature, pulse, respiration: baseline vitals to certify clinical health
• Temperament and stress response: an anxious or highly reactive dog warrants a discussion of crate acclimatisation and in-flight anxiety management
• Reproductive status: pregnant females should not fly; confirm gestational status if relevant
• Vaccination status: confirm all required vaccines are current and correctly recorded

Parasite treatment requirements

Many destinations require documented parasite treatment as a condition of entry. The specific requirements vary widely.

• Tapeworm treatment (EU/UK): dogs entering Great Britain and many EU member states from certain countries must receive a tapeworm treatment (praziquantel-based) administered by a vet, with the treatment recorded in the pet passport, no less than 24 hours and no more than 120 hours (5 days) before entry. This is a hard timing window — discuss the travel date carefully with your vet.
• Tick treatment: Australia, New Zealand and some Pacific destinations require evidence that dogs are free of ticks. Some require treatment with an approved acaricide. Treatment timing and approved products are specified by the destination authority.
• Intestinal parasites: many export health certificates require the vet to certify that the dog is free from parasites at the time of examination. A faecal test in the weeks before travel is reasonable due diligence.
• Heartworm prevention: ensure your dog is on a current preventive and negative for heartworm before travelling, particularly if the destination has mosquito-borne disease risk.

Anxiety, crate readiness and sedation: what your vet will advise

Crate acclimatisation should begin weeks — ideally months — before travel. A dog that has been trained to regard the travel crate as a safe, positive space will handle the journey substantially better than one that has never seen it before. Begin with the crate open and accessible at home, feed meals inside it, progress to brief periods of closed confinement, then car trips in the crate, and finally the duration required for the actual journey.

Your vet may prescribe anxiolytic medication for dogs with confirmed travel anxiety — but this is a carefully considered decision, not a routine precaution. The major guideline bodies and IATA guidance advise against sedation for air travel: sedated dogs cannot maintain muscle tone to brace in turbulence, have suppressed thermoregulation (increasing heatstroke risk in a cargo hold), and cannot communicate distress. If your dog cannot travel without heavy sedation, that is a strong signal that flying may not be appropriate for this animal.

When a dog should NOT fly: the key risk categories

This is the most important section of this article. Veterinary bodies and airline pet programmes have documented deaths and serious incidents in cargo. The common thread across many of these incidents is a dog in one of the following categories that was placed in cargo despite a foreseeable elevated risk. Your vet has an ethical obligation to advise you if your dog falls into these categories.

• Brachycephalic breeds: French bulldogs, English bulldogs, pugs, Boston terriers, Pekingese, Shih Tzus, Cavalier King Charles Spaniels and other flat-faced dogs have anatomically narrowed airways (brachycephalic obstructive airway syndrome, BOAS). The stress of travel, the temperature variations in a cargo hold, and the altitude-related reduction in oxygen partial pressure significantly elevate their respiratory risk. Most major airlines have banned all brachycephalic breeds from cargo travel. Some allow them in-cabin if within the size/weight limit. Consult your vet and your airline before booking — and if in doubt, do not fly.
• Very young dogs: puppies under 8 weeks should never travel by air. Most airlines require dogs to be at least 8 weeks old, though 12–16 weeks is often safer. Young puppies have undeveloped thermoregulation, immune systems and stress responses.
• Senior dogs: older dogs with reduced cardiac reserve, joint pain, or cognitive decline may find the confinement and stress of travel disproportionately harmful. Discuss with your vet whether the journey is justified.
• Dogs with heart or respiratory disease: any dog with a cardiac murmur (above Grade 2), arrhythmia, significant tracheal disease, chronic respiratory disease, or any condition that reduces oxygen tolerance is at elevated risk in the altered atmosphere of a cargo hold.
• Pregnant dogs: most airlines prohibit pregnant dogs, and for good reason — the stress of travel, combined with the demands of late pregnancy, creates serious risk. A dog more than 6 weeks pregnant should not fly.
• Dogs that have recently had surgery or anaesthesia: general anaesthesia has residual effects on cardiovascular and respiratory function that persist for days. A dog that has recently had a procedure is not cleared for air travel until your vet explicitly certifies it.
• Dogs in extremes of weight: both severely underweight dogs (with poor physiological reserve) and morbidly obese dogs (with compromised respiratory mechanics) face elevated travel risk.

Alternatives to flying: worth considering seriously

If your dog falls into a risk category, or if the logistics of meeting all import requirements are too complex for your timeline, the alternatives deserve genuine consideration — not as a last resort, but as the first option.

• Ground transport: for intra-regional moves (e.g., within Peninsular Malaysia and Singapore; overland through Europe), ground transport in a properly equipped vehicle avoids the cargo-hold risks entirely. Professional pet relocation companies offer ground-transport services with temperature-controlled vehicles.
• Postponing travel: if the import timeline cannot be met safely, delaying a move by three to six months is a far better outcome than a pet in quarantine or a medical emergency in transit.
• In-cabin travel: for small dogs within airline size and weight limits (commonly under 8 kg including carrier), in-cabin travel eliminates cargo risk entirely. The dog travels with you, under the seat in front. Confirm your specific airline's in-cabin policy before booking.
• Pet relocation specialists: a IPATA (International Pet and Animal Transportation Association) member agent can manage the entire document and logistics chain and has direct relationships with airlines. For complex routes, this is money well spent.