The agency is looking for riders who found romance, or perhaps rekindled an old flame, on a SEPTA bus, train or trolley.
You can submit your tales of true love online for the next two weeks.
The best story will win a March SEPTA Anywhere pass, and a $100 Dunkin Donuts gift card.
10 others will win an "I-SEPTA-Philly" shirt.
To enter visit: www.ISEPTAPHILLY.com/contests