Quick answer

England’s national flag—the red cross of St George on a white field—hasn’t officially “changed” in the modern sense. What people often think of as “England’s flag changing” is actually the evolution of the Union Flag (Union Jack) , which combined England’s cross with those of Scotland and later Ireland as the kingdoms united.

What England’s flag actually is

  • Flag of England : A red cross on a white background, known as St George’s Cross.
  • This design has been associated with England since at least the late medieval period and remains England’s official national flag today.

So if you’re asking strictly about “England’s flag,” the core design (red cross on white) has remained consistent for centuries.

When the Union flag changed (the part people usually mean)

The big changes happened to the Union Flag , not England’s own flag. Here’s the timeline:

1. Before 1603: England alone

  • England used St George’s Cross (red cross on white).
  • Scotland used St Andrew’s Cross (white diagonal cross on blue).

2. 1606: First Union Flag (England + Scotland)

  • After James VI of Scotland became James I of England in 1603, the two crowns were united.
  • In 1606 , James I introduced a combined flag for use at sea:
    • St George’s Cross (England) + St Andrew’s Cross (Scotland).
  • This is often called the first Union Flag , though it wasn’t yet the flag of a single political state.

3. 1707: Flag of Great Britain

  • In 1707 , the Acts of Union merged the kingdoms of England (with Wales) and Scotland into the Kingdom of Great Britain.
  • The existing 1606 design was formally adopted as the national flag of Great Britain.

4. 1801: Current Union Jack (adding Ireland)

  • In 1801 , following the 1800 Act of Union with Ireland, the Kingdom became the United Kingdom of Great Britain and Ireland.
  • The flag was updated to include St Patrick’s Saltire (a red diagonal cross on white) representing Ireland.
  • This 1801 design is the Union Jack we know today.

Even after most of Ireland left the UK in 1922, the St Patrick’s saltire remained, now understood as representing Northern Ireland within the continuing United Kingdom of Great Britain and Northern Ireland.

So when did England “change their flag”?

  • England’s own flag (St George’s Cross) : No official redesign; it’s still the red cross on white.
  • The flag representing England as part of a larger state (Union Jack) :
    • First combined version: 1606 (England + Scotland at sea).
    • Official national flag of Great Britain: 1707.
    • Current design with Ireland added: 1 January 1801.

If you’ve seen debates online about “England changing their flag,” they’re usually about:

  • The difference between St George’s Cross (England) and the Union Jack (UK).
  • Calls from some groups to use St George’s Cross more prominently instead of the Union Jack when representing England specifically.

TL;DR

  • England’s national flag (St George’s Cross) has kept the same basic design for centuries.
  • The flag that “changed” is the Union Jack , which incorporated England’s cross along with Scotland’s and Ireland’s:
    • 1606 : first combined flag (England + Scotland)
    • 1707 : official flag of Great Britain
    • 1801 : current Union Jack design (adding Ireland)

Information gathered from public forums or data available on the internet and portrayed here.