There are over 250 Covid-19 testing sites in Connecticut, however MOST of them require you to make an appointment. However, there are a handful of sites that are walk-up/drive-up and no appointment is needed.
Rentschler Field in East Hartford has been and continues to provide Covid-19 testing without an appointment.
There are also locations pretty evenly scattered throughout the state. There's a site in Bristol, one in Stamford, one in Waterbury, Groton, Meriden, Middletown and more.
- In New Haven,Cornell Scott Hill Health Center.
- Generations Family Health Center in Willimantic, Putnam, and Danielson.
- Wheeler Waterbury Family Health and Wellness Center.
- Hartford Healthcare ‘GoHealth’ Urgent Care.
Below is the complete list. Hope this is helpful.