SHORT ANSWER
The most reliable pet relocation companies for a move to Portugal are the ones that can prove three things: a network of USDA-accredited veterinarians who handle EU health certificates correctly, direct working knowledge of Portugal's specific entry rules (not just general EU rules), and a real point of contact on the ground in Portugal who can meet your pet and clear customs on your behalf. A lot of companies claim to do international pet relocation. Far fewer have actually built their process around the Portugal corridor specifically, which matters because Portugal's paperwork, the 48-hour DGAV pre-arrival notice, and the country's breed-specific documentation rules are all details a generalist mover can easily miss. Starwood Pet Travel has built its process around exactly this route, with an established partner already in place on the Portugal side.
Anyone can put "international pet relocation" on a website. What separates a company that's actually reliable from one that's just willing to take your money is whether they can walk you through the specific mechanics of the Portugal route without hesitating.
That means being able to answer, without looking it up mid-call, questions like: Which health certificate does a U.S. dog need for Portugal versus a non-EU country? Who submits it to APHIS for endorsement, and how long does that take? What happens at Lisbon Airport when your pet lands? According to USDA APHIS's official Portugal page, a USDA-accredited veterinarian must issue the EU health certificate, and for non-commercial pet moves, USDA endorsement has to happen within 10 days of your pet's arrival in the EU. If a company can't explain that timeline in plain language, they haven't actually done this route before.
We've written a full walkthrough of what happens once your pet touches down, including the exact pet arrival and customs procedures at Lisbon Airport, if you want to see the level of detail a company should already know before you ever book a flight.
There's an active, honest conversation happening online about whether you even need a pet relocation company at all. In a widely discussed r/pettravel thread, one pet owner described skipping a $4,000 to $6,000 relocation company quote and handling their own move to Europe, learning the microchip sequencing, USDA endorsement window, and country-specific certificate rules along the way. It's a fair point. The process is documented publicly, and a patient, organized person can absolutely do it themselves.
But that same thread also shows exactly where things go wrong when there's no professional buffer. One commenter, moving their son's cat to Denmark, wrote in the same thread: "The USDA failed to overnight our Son's certified health certificate in time for his flight... he had everything in order, paid his $600.00 dollars and the USDA certified his pet's travel certificate to Denmark the day he was boarding his flight. We didn't have an option to cancel his flight and rebook." Another poster described the USDA taking the full 10 days on a paperwork submission and the family "contemplating what to do if we didn't get the papers on time," ultimately resolved only after the vet personally called the USDA to push the documents through overnight.
This is the actual trade-off. DIY relocation can save money when everything goes according to schedule. A reliable relocation company earns its fee by catching the moment something doesn't, before it turns into a missed flight or a pet stuck at customs.
Before you commit to any company, dedicated pet relocation specialist, general international mover, or DIY approach, get straight answers to these:
If a company hesitates on more than one of these, that's useful information. It tells you they're generalizing from EU knowledge rather than working from Portugal-specific experience.
Not every option marketed as "pet relocation" is built the same way. Broadly, the choices pet parents run into are:
Doing it entirely yourself. Lower cost, full control, and full responsibility. Every deadline, from microchip sequencing to the USDA endorsement window, is yours to track with no professional catching a missed step.
General international movers who also "handle pets." Household goods and shipping companies sometimes offer pet transport as an add-on. Their expertise is in furniture and freight, not in EU import biology paperwork, and Portugal-specific rules are rarely their core competency.
Cargo brokers and ticket-counter services. These focus on booking your pet's crate space on a flight. They're often not equipped to advise on health certificate content, DGAV notification, or what to do if a document gets flagged.
Dedicated pet relocation companies without a Portugal-specific process. Many are genuinely good at pet transport broadly but haven't built a specific workflow, partner network, or documentation checklist around Portugal's particular requirements, including the country's list of breeds requiring extra border paperwork under Portaria n.º 422/2004 and Decreto-Lei n.º 315/2009.
Starwood Pet Travel didn't build a generic international pet relocation process and try to stretch it to fit Portugal. The company has developed dedicated resources, documentation workflows, and an established relationship with Global Pets, its partner on the Portugal side, specifically because U.S.-to-Portugal has become one of the most requested relocation routes among American pet owners moving abroad.
As I've seen firsthand producing our Portugal content series, the questions pet owners bring us almost always trace back to the same handful of details. "Most of the families who come to us have already tried to research this themselves, and they usually get stuck in the same two or three places: the microchip and rabies vaccine sequencing, or figuring out who actually files Portugal's 48-hour arrival notice," says Georgiana Strait, Marketing Manager at Starwood Pet Travel. "Portugal is genuinely one of the more approachable EU moves for U.S. pet owners, since our pets skip the rabies titer test entirely. But approachable still means there's a specific order of operations, and that's exactly what a Portugal-dedicated team is there to manage."
That regulatory fluency shows up in the details. Because the U.S. is a listed third country, U.S. pets are exempt from the EU rabies titer test requirement for Portugal, something confirmed on USDA APHIS's Portugal page. It also shows up in the smaller details that trip up generalists, like knowing exactly which of Portugal's seven "potentially dangerous" breed classifications require extra border paperwork, and which don't apply at all to a typical family pet. For a closer look at how the pet-side process differs from human immigration paperwork on this same route, see our companion piece on what pet immigration services help U.S. families relocate pets to Portugal. If you're ready to talk through your own timeline, you can request a free quote directly.
This isn't just a claim we make about ourselves. Starwood's own testimonials page shows 40 years of combined team experience, a 4.7 rating across more than 400 Google reviews, and over 10,000 completed pet moves, including families who moved specifically to Portugal. One recent reviewer, Allyson Dykhuizen, who relocated her dogs Royal Tenenbaum, Roosevelt, and Lord Bullington from the U.S. to Portugal, put it this way: "Well worth the cost to have the peace of mind that professionals are taking care of everything."
Watch for these warning signs while you're comparing quotes:
The r/pettravel thread referenced above is worth reading in full if you're weighing your options, because the comments underneath it tell a more complete story than the original post. Dozens of people asked the original poster for their "free DIY guide," but the replies from people who'd already gone through the process painted a mixed picture: some had smooth experiences with a cooperative USDA-accredited vet, while others described a stressful scramble when their veterinarian wasn't familiar with the destination country's paperwork, or when USDA processing ran right up against their flight date. One commenter summed up the trade-off plainly: "It sucks how expensive it is if we go through pet relocation companies... I will be doing this process myself, which will be slightly more difficult because of my dog's breed." The savings are real. So is the added risk when something in the timeline doesn't cooperate.
To make this concrete, here's how Starwood Pet Travel stacks up against two other well-known international pet relocation companies, PetRelocation and Air Animal Pet Movers, based on what each company publishes about itself. We pulled every figure directly from each company's own website in September 2026, so you can verify any of it yourself before you decide who to call. See the full side-by-side comparison chart here.
A note on how to read that comparison honestly: not finding a Portugal-specific page or testimonial on a competitor's site doesn't prove they can't handle a Portugal move well, only that we couldn't verify it publicly at the time of writing. That's exactly why the questions in the section above matter more than any single company's marketing. Ask PetRelocation, Air Animal, Starwood, or anyone else the same six questions and compare the actual answers you get.
If you want a starting point for your own comparison, reach out to our team with your travel dates and we'll walk you through exactly where your move stands against this checklist.