[1] From Gortin in County Tyrone, Flanagan attended Sacred Heart College, Omagh before she and her twin sister, Eilish Flanagan, also a distance runner, earned scholarships at Adams State University in Colorado.

[5] Flanagan broke her own Northern Ireland record by over a second when she finished 11th in 15:26.76 in the 5,000 metres at the 2022 Commonwealth Games in Birmingham.

[6] In December 2022, Flanagan participated in the European Cross County Championships in Turin in a team alongside her twin sister, where they helped secure a bronze team medal for Ireland.

[8] Flanagan set an Irish record over 2 Miles (9:36.70) when competing at the Millrose Games in February 2024 in New York.

[9] She was selected for the 2024 World Athletics Indoor Championships in Glasgow where she competed in the women's 3000 metres race and ran a personal best time of 8:53.02.