St Mary's Medical Clinic (previously Mississauga Urgent Care)
1201 Britannia Road West, East Credit
ClinicFinder lists 5 urgent care centres in Mississauga. Of these, 3 are open until 8 PM or later and 5 are open on weekends. Top rated, weighing the rating against the number of reviews: St Mary's Medical Clinic (previously Mississauga Urgent Care) (5.0/5 from 23 Google reviews).
1201 Britannia Road West, East Credit
100 Queensway West, Cooksville
Latest listing check September 2026
Urgent Care in Mississauga that list evening and weekend hours.
If it is life-threatening, call 911 or go to the nearest emergency department.
ClinicFinder lists 5 urgent care centres in Mississauga. 4 list Saturday hours and 3 are open on Sundays. The average patient rating is 3.9 out of 5, and 3 clinics are rated 4.5 or higher.
Whether you need a routine check-up, a prescription renewal, or treatment for a minor illness or injury, the urgent care centres listed here can help. Bring your Ontario health card and a list of your current medications, and call ahead if you are unsure about hours.

Bring your health card and medication list. Call ahead to confirm hours.
Clinics and practitioners listed in the city, by type of care.
Neighbourhoods and cities around Mississauga.
Answers from the listings above and Ontario's health plan.
Call ahead before you go. Clinics can stop accepting new or walk-in patients before their posted closing time, especially on busy days. The listings above show each clinic's phone number and today's hours, so you can check before making the trip.
Among urgent care centres in Mississauga with at least 10 Google reviews, St Mary's Medical Clinic (previously Mississauga Urgent Care) has the highest rating: 5/5 from 23 Google reviews.
Yes. 5 of the 5 listings above that publish their hours are open on Saturday or Sunday. Check each listing for its weekend hours.
The average patient rating for urgent care centres in Mississauga is 3.9/5 based on 5 rated clinics.
OHIP covers medically necessary physician services at walk-in clinics. Children 17 and under and low-income seniors 65+ may qualify for dental care through provincial programs. Physiotherapy is covered for patients under 20, over 65, or within 12 months of hospital discharge. Full details are on the OHIP page.
Visit urgent care in Mississauga for conditions needing prompt attention but not life-threatening: sprains, minor fractures, cuts needing stitches, high fever, or infections. For chest pain, difficulty breathing, or severe injuries, call 911 or go to the nearest emergency room.
Wait times at urgent care centres in Mississauga vary with the time of day and how busy the centre is, and waits of several hours are common at peak times. Patients are seen in order of how urgent their condition is. Many centres post current estimated wait times online, so check before you go.
Urgent care centres in Mississauga treat sprains, strains, minor fractures, cuts requiring stitches, high fever, ear and eye infections, UTIs, asthma flare-ups, and other conditions needing prompt but not emergency-level attention.
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