Fans have been invited to join the procession, starting at 3pm, in Braintree, Essex. A private ceremony for friends and family will then take place at St Mary's Church in the village of Bocking, with fans able to hear the proceedings through speakers outside the church.
Fans from all over the world are expected to attend today to pay tribute to the icon, whose appearance and energy on stage made him synonymous with not only rave culture, but also rock, in the 1990s.
The Prodigy confirmed Keith's death earlier this month, writing: "It is with deepest shock and sadness that we can confirm the death of our brother and best friend Keith Flint. A true pioneer, innovator and legend. He will be forever missed.
We thank you for respecting the privacy of all concerned at this time."
Scores of dance music artists paid tribute to Keith after his passing, from Skrillex and The Chemical Brothers to Nina Kraviz and The Black Madonna.
Here we'll be providing you with updates from the funeral procession throughout the day, whether it be through photos, videos, tweets or interviews with fans.
16:19 - Keith Flint's coffin is carried into St Mary's Church with the ceremony now underway.
16:11 - The funeral procession is applauded and cheered as it passes trough the crowds of thousands lining the streets of Braintree.
15:57 - The order of service cards contain some amazing images from across Keith's life.
The order of service for today's ceremony— Mixmag (@Mixmag) March 29, 2019
Keef Flint raise the roof pic.twitter.com/ClCJ5F7XKB
15.21 - So many people. So much love. And the sun is shining down for a person who meant so much to so many.
Huge crowds assembling outside the church to commemorate the incredible life of Keith Flint 🖤 pic.twitter.com/JMOlcEf5IN— Mixmag (@Mixmag) 29 March 2019
15.13 - Scenes in the streets outside the church.
15.10 - Keith's coffin makes its way towards St Mary's Church
15.07 - Fans doing what Keith did best: having a right good time.
14.38 - Soundsystems and motorbikes. A farewell Keith would be proud of.
14.31 - An ant has never looked so good. Half an hour to go until the procession begins.
14.17 - "Thanks for the music and the dance"
14.11 - KEEF. The name Keith was affectionately known as is displayed on top of the hearse. Of course there's the classic acid smiley in there, too.
13.49 - The tunes are rolling opposite the church where today's funeral takes place. Classic Keith in the background.
13.41 - It's all about Keith Flint and his party spirit on our train to Essex.
Standing room only on the train to Braintree, Essex. Cans of lager cracked open, mohawks standing tall. A range of Prodigy merch from over the years on display #KeithFlint 💚— Mixmag (@Mixmag) 29 March 2019
12.57 - A Dutch fan tells BBC Essex The Prodigy was the reason he fell in love with dance music in the '90s.
#Prodigy fans have travelled from far and wide to Braintree to pay their respects to frontman #KeithFlint whose funeral takes place this afternoon.— BBC Essex (@BBCEssex) 29 March 2019
Dirk DeRuiter, who's come over from Holland, says @the_prodigy were the reason he fell in love with dance music in the 90s. pic.twitter.com/bvIz7uTT5l
12.53 - A beautiful display of flowers from fans on show at St. Mary's Church
12.44 - Newsquest journalist George Henry King films flowers being loaded into the hearse.
12.04 - RIP FIRESTARTER
11.06 - Keith Flint stole the hearts of ravers worldwide, as proved by this Czech Republic flag paying tribute.