Swiss has flown Mochi a handful of times — they're predictable and pet-friendly for cabin travel with brachy breeds. Cabin tops out at 8 kg combined in a 55 × 40 × 23 cm soft carrier, two pets per passenger max. Minimum age is 12 weeks. Snub-nosed dogs and cats are allowed in the cabin only, never in the hold, due to documented heat-stress risk.

Swiss's pet policy splits into cabin and cargo. This page summarizes the weight limits, fees, brachycephalic-breed restrictions, and carrier specifications for both modes — sourced from the airline's official pet pages.

How Swiss treats your pet

Cabin policy

ItemDetailSource & confidence
Pets accepted Accepted in the cabin 96%
Pet + carrier max weight 8 kg (incl. carrier) 95%
📏 Carrier max size 55 × 40 × 23 cm (L × W × H) 95%
🔢 Pets per passenger Up to 2 per passenger 94%

Hold policy

ItemDetailSource & confidence
Pets accepted Accepted in the hold 94%
Snub-nosed (brachycephalic) breeds Not accepted in the hold 95%

Cargo policy

ItemDetailSource & confidence
Pets accepted Accepted in the cargo 95%
Snub-nosed (brachycephalic) breeds Not accepted in the cargo 95%
Advance booking Add to booking ≥ 72 h before departure 95%
One-way fee 150 EUR 95%
Swiss requires the pet booking 72 hours before departure when made through a travel agency, with a tighter window via the airline direct. The per-flight cabin pet cap is limited; same-day requests are routinely denied. The booking includes paperwork verification at check-in. Without confirmation on file, the carrier will not accept the pet at the gate.
Snub-nosed dogs and cats — bulldogs, French Bulldogs, Pugs, Persians, Himalayans — are not accepted for hold travel on Swiss. The cabin lane remains open when they fit the 8 kg ceiling and the 55 × 40 × 23 cm carrier. Bull-type breeds (Pit Bulls, Staffordshire Bulls, American Bullies, Bull Terriers) fall in the hold-banned bucket too. Dangerous breeds route via Lufthansa Cargo only.

Frequently asked

How many pets can I bring on Swiss?
Swiss allows 2 in the cabin, per passenger. Each pet needs its own carrier.
What is the cabin weight limit on Swiss?
In the cabin, your pet plus its carrier must not exceed 8 kg.
Can snub-nosed (brachycephalic) breeds fly Swiss?
Snub-nosed breeds such as bulldogs, pugs and Persian cats are not accepted in the hold.
What if my flight is delayed past my health certificate validity?
If the certificate window expires before you board, you'll need a re-issue. Build a 1-2 day buffer between the cert date and departure to absorb minor delays.
What happens if I forget a document?
At the destination airport: at best, an extended inspection while you produce backup; at worst, the pet is held in quarantine or returned to origin at your cost. Bring printed copies.
Swiss hold pet supplements add EUR 150 / CHF 170 / USD 170 for tickets issued after 1 April 2021 when routing via Geneva, Frankfurt, Vienna, Brussels, Munich, or Zurich. The base hold fee is separate. Cabin fees follow the standard Swiss-route bands and are charged per pet per one-way segment. No fee bundles with the checked baggage allowance.
Swiss is a clean choice for brachy cabin travel — the rules are documented and consistent. Your plan answers three questions before booking: does the dog or cat fit the 8 kg ceiling, is the transit airport on the supplement list, and is the breed cabin-only or hold-eligible. The 72-hour booking window is firm.
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Glossary

ISO chip
ISO 11784/11785 — the universal microchip standard.
FAVN
Fluorescent Antibody Virus Neutralization — a rabies serology test required by rabies-free destinations.
Brachycephalic
Snub-nosed breeds (French Bulldogs, Pugs, Persians, Himalayans) with restricted airline acceptance due to heat-stress risk.
AVIH
Animal Vehicle In Hold — IATA's term for cargo pet shipment, with fees that vary by carrier and route.