Vet Locator lists 3 urgent care vets in Ontario, California, as of October 2026: A R Animal Hospital, Ontario Veterinarian and Ontario Veterinary Hospital. 3 of these were confirmed from the business's own website.
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Veterinary clinic
3085 S Archibald Ave # D · Ontario, CA 91761
A R Animal Hospital in Ontario, CA, has served pet owners since 2001 under Dr. R. Sidhu, DVM. It cares for dogs, cats, rabbits, birds and small rodents, offering wellness exams, diagnostics, surgery, urgent and…
Veterinary clinic
1620 Fremont Ct · Ontario, CA 91761
A full-service animal hospital in Ontario, California, handling emergency cases along with routine medical, surgical and dental needs. It offers in-house lab testing, digital radiographs, an in-house pharmacy and…
Veterinary clinic
121 E E St · Ontario, CA 91764
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A full-service animal hospital in Ontario offering emergency, urgent and routine medical, surgical and dental care seven days a week. It provides in-house laboratory testing, digital radiographs, an in-house…
Veterinary clinic
10 W 7th St · Upland, CA 91786 · 4.6 mi
License VerifiedBoard-certified specialists
Inland Valley Veterinary Specialists & Emergency Center in Upland operates around the clock every day of the year, serving dogs and cats with emergency and specialty care. It works alongside local veterinarians on…
Veterinary clinic
9605 Foothill Blvd · Rancho Cucamonga, CA 91730 · 5.4 mi
Oasis Pet Hospital is a veterinary clinic in Rancho Cucamonga, California, serving dogs and cats. Its online booking page lists wellness checks, dental care, vaccines, bloodwork, X-rays, ultrasound, spay and neuter,…
Veterinary clinic
5405 Arrow Hwy Ste 108 · Montclair, CA 91763 · 5.9 mi
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Arrow Dog & Cat Hospital in Montclair offers wellness exams, vaccinations, and spay and neuter services for dogs and cats. The hospital has an on-site surgical suite, including orthopedic procedures by a surgeon,…
Veterinary clinic
823 W Foothill Blvd · Upland, CA 91786 · 6.0 mi
A full-service animal hospital in Upland, CA offering urgent care and wellness services. It provides an in-house laboratory, pharmacy, orthopedic surgery, and C-sections for breeds such as English Bulldogs, French…
Vet Locator lists 3 urgent care vets in Ontario, California, as of October 2026: A R Animal Hospital, Ontario Veterinarian and Ontario Veterinary Hospital. 3 of these were confirmed from the business's own website.
Veterinary urgent care handles same-day problems that can't wait for a regular appointment but aren't full emergencies: vomiting, limping, ear infections, minor wounds. Usually cheaper than an emergency hospital.
Outside Ontario, the closest we list are Inland Valley Veterinary Specialists in Upland (about 5 miles), Oasis Pet Hospital in Rancho Cucamonga (about 5 miles) and Arrow Dog And Cat Hospital in Montclair (about 6 miles).