|Date of birth||1875|
|1904–1905||West Ham United||20||(3)|
|* Senior club appearances and goals counted for the domestic league only|
A former player of Walsall, Bristol City and Reading, Flynn joined West Ham United in 1904. He scored on his debut, on 1 September 1904, in a 3-0 home win against Millwall Athletic. It was the first meeting between the two rivals played at the Boleyn Ground. His last game was in February 1905.
- "Welcome to the Wonderful World of West Ham United Statistics — Jack Flynn". www.westhamstats.info. Retrieved 18 November 2013.
- "Jack Flynn". www.citystats.org.uk. Retrieved 18 November 2013.
- "Millwall match preview". www.whufc.com. Archived from the original on 2 December 2013. Retrieved 18 November 2013.