PSA for anyone relocating pets internationally this summer: heat embargoes + a new EU rule that just tightened the timeline

If you've got an international move with pets on the calendar this summer, there are two things worth knowing about before you book anything.

1. Summer heat embargoes are no joke

Most major airlines won't accept pets in cargo once ground temps at the origin, layover, or destination hit the low-to-mid 80s°F (~27–29°C). When pets are held in the cargo warehouse and taken to the aircraft, they can be exposed to the elements, so this is a safety rule, not red tape — but it does mean embargoes can pop up with almost no warning if a connecting hub has a hot day.

A few things that help:

• Departure city matters. Coastal airports (LA, Seattle, SF) tend to stay under the threshold more reliably in summer. The Northeast, Midwest, Middle East hubs (Dubai, Doha, Abu Dhabi), Southeast Asia in monsoon season, and Southern Europe/Mediterranean in peak summer are the trouble spots.
• Early morning or overnight flights avoid the hottest part of the day and often dodge embargo triggers a midday flight would hit.
• Snub-nosed breeds (French Bulldogs, Pugs, Bulldogs, Persians, Himalayans, Boston Terriers, etc.) face extra restrictions. Their compressed airways make heat regulation harder, so a lot of airlines have breed-specific bans that are separate from — and often stricter than — the general temperature policy.
• Book early and stay flexible. Summer is the most volatile season for pet travel logistics.

2. New EU rule: the "5-day rule" is gone

This is the bigger change and it's already in effect with no grace period.

Previously, a pet could fly within 5 days of its owner and still travel under a non-commercial health certificate. That's no longer enough. Now, if you're not on the same flight as your pet, the move is classified as commercial — regardless of airline.

Why it matters:

• A commercial health certificate is only valid for 2 days from the vet visit to departure (vs. 10 days for non-commercial). That's a much tighter booking window.
• This isn't just an "EU destination" rule — it applies to any move that connects through Amsterdam (AMS) or Frankfurt (FRA), even if the pet's final destination isn't in Europe at all. So a US → Asia or US → South Africa move could get caught by this if the routing passes through either hub.
• In practice, this often forces the vet appointment to Monday and the flight to Wednesday, just to keep everything inside the validity window and avoid weekend arrivals/departures.

Bottom line: if your pet's route touches AMS or FRA, or ends in the EU, flag it early — the certificate type changes your whole timeline, from vet scheduling to USDA endorsement to flight booking.

Posting this because it caught even really organized people off guard when it changed. Happy to answer questions if anyone's navigating a summer move right now.

You can read the full article here > https://www.starwoodpet.com/blog/summer-heat-embargoes-and-pet-travel-what-you-need-to-know-before-you-move