| Date - Field | Tonga - Flag description |
2008 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2007 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2006 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2005 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2004 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2003 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2002 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2001 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |
2000 January Flag description | red with a bold red cross on a white rectangle in the upper hoist-side corner |