Crowds of mourners have flocked to London, Windsor and royal sites throughout the UK on the national bank holiday, with the service set to draw millions of TV viewers across the globe.
All public viewing areas for the funeral procession in the capital were full by just after 9am.
The royal family, including Prince George and Princess Charlotte, will be among the 2,000 people gathered at Westminster Abbey to remember the late monarch on Monday morning, before a committal service at Windsor Castle.
. Guests arrive for the State Funeral of Queen Elizabeth II
Guests arrive for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Danny Lawson
. King Charles III arrives ahead of the State Funeral of Queen Elizabeth II
King Charles III arrives ahead of the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Tim Goode
. Guests take their seats at the State Funeral of Queen Elizabeth II, held at Westminster Abbey
Guests take their seats at the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Dominic Lipinski
. The Princess of Wales arrives ahead of the State Funeral of Queen Elizabeth II
The Princess of Wales arrives ahead of the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Tim Goode
. The Duchess of Sussex arrives for the State Funeral of Queen Elizabeth II
The Duchess of Sussex arrives for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Andrew Milligan
. Prime Minister Liz Truss arrives for the State Funeral of Queen Elizabeth II
Prime Minister Liz Truss arrives for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Andrew Milligan
. US President Joe Biden accompanied by the First Lady Jill Biden arriving at the State Funeral of Queen Elizabeth II
US President Joe Biden accompanied by the First Lady Jill Biden arriving at the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Peter Byrne
. Princess Charlotte arrives for the State Funeral of Queen Elizabeth II
Princess Charlotte arrives for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Andrew Milligan
. Guests arriving for the State Funeral of Queen Elizabeth II
Guests arriving for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Gareth Cattermole
1. Guests arrive for the State Funeral of Queen Elizabeth II
Guests arrive for the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Danny Lawson
2. King Charles III arrives ahead of the State Funeral of Queen Elizabeth II
King Charles III arrives ahead of the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Tim Goode
3. Guests take their seats at the State Funeral of Queen Elizabeth II, held at Westminster Abbey
Guests take their seats at the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Dominic Lipinski
4. The Princess of Wales arrives ahead of the State Funeral of Queen Elizabeth II
The Princess of Wales arrives ahead of the State Funeral of Queen Elizabeth II, held at Westminster Abbey, London. Picture date: Monday September 19, 2022. Photo: Tim Goode