GB to US is a clean route in both directions, but the UK side is the part most owners overlook. Your UK pet documents (AHC or GBHC depending on origin) are built for EU travel, not US entry — so you need a separate vet-issued international health certificate for the US trip. Nala and I keep ours filed digitally and printed. The single decision that determines speed is which UK vet handles the export endorsement.

Flying with a pet from United Kingdom to United Kingdom → United States bundles two sets of rules: the destination's import requirements, and each airline's pet-travel policy on the route. This page combines them so you can plan one consistent timeline.

Flying with your pet from United Kingdom to United Kingdom → United States

United Kingdom → United States import requirements

What you need to bring a pet to United Kingdom → United States

Requirement Detail Source & confidence
✓ Microchip Required 97%
✓ Rabies vaccine Required 95%
✓ Health certificate 10-day validity from issue 95%
✓ Titer test Required 95%
✓ Quarantine Required 95%
✓ Import permit Required 95%

Timing chain

Day -90 microchip implant · Day -10 health certificate issued · Day 0 arrive at customs

Frequently asked

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.
For GB to US: microchip ISO, rabies vaccine current with date documented, vet-issued international health certificate within 10 days of departure, plus the CDC Dog Import Form filed online before you fly. UK exits don't need a separate UK government endorsement for the US side — just the vet's signature on the right template. Build your plan against your departure date in Pawgo before booking — it shows the exact cert window.
Get YOUR personalized plan for United Kingdom → United States →

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.