Of course, Red Bull's competitiveness next year is by no means certain given they will switch to Honda power units, so at least he is now at a works team.
Ricciardo is fifth in the 2018 drivers' standings and has won in China and Monaco this season. Starting off at San Francisco (complete with an obligatory jaunt across the Golden Gate Bridge), Danny Ric and his accompanying pit crew made their way through Utah's Monument Valley, before stopping at the final destination - the famous Bellagio Hotel in Las Vegas.
Ricciardo says he wanted a "new challenge", but is there more to it than that?
His move is likely to trigger a string of driver moves in coming weeks, firstly as Red Bull searches for a replacement alongside Verstappen and then as the lesser teams shuffle their line-ups.
"Perhaps it was the most hard decision of my career".
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He will replace Carlos Sainz.
The surprise switch came after his current employers Red Bull had announced earlier in the day that the 29-year-old would be leaving them at the end of this year.
"I realise that there is a lot ahead in order to allow Renault to reach their target of competing at the highest level but I have been impressed by their progression in only two years", he added.
Renault have named Nico Hulkenberg as Ricciardo's 2019 team-mate.
The Australian has been on Red Bull's books since 2008, winning titles in Formula Renault 2.0 and British Formula 3 before the energy drinks giant brought him into grand prix racing in 2011.
Renault are now fourth in the Constructors' Championship and are yet to win a race since returning to the sport as a fully-fledged team three years ago when they bought Lotus.
'Jérôme Stoll, President, Renault Sport Racing: Renault made a decision to come back to Formula One to fight for World Championships. I hope to be able to help them in this journey and contribute on and off track. Ricciardo will hope to replicate the success Hamilton has enjoyed in the years since, though it is by no means an easy feat, and he'll need to have a top-notch vehicle to begin with. Drivers outside of those three teams are fully aware that they have no realistic chance to contend for victories.