Located in the Away sector of the Stadium, off Sloper road, the testing facility is close to both Grangetown & Ninian park stations.
A fast and accurate PCR swab test priced at the discounted rate of £80 per person for travel passengers and £99 per person for a test-only service.
The new facility will be of particular use to members of the public who are symptomless and so do not qualify for NHS emergency testing, but require a green light to visit family members or fly after lockdown eases.
Results will be emailed or can be text to customers typically the next day.
Travel passengers who have booked the Fit to Fly service and screen negative will be emailed a Fit to Fly certificate that is authorised by a doctor, along with their test result.
ExpressTest is a division of Cignpost Diagnostics Ltd.