As a result, the teenager has a routine that could very well be the envy of those who crave a lazy day in.
Littler got a taste of travelling the world for darts following his breakout performance at the 2024 World Championships, where he lost to Luke Humphries in the final.
Owing to his status as the hottest property in the sport, Littler was in demand for various events across the globe.
Last year's Premier League, won by Littler, included stops in Berlin and Rotterdam.
He was also part of the field at the US Darts Masters in New York City, which was played at the iconic Madison Square Garden.
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Littler even competed as far away from home as Australia, finishing runner-up in the 2024 Australian Darts Masters.
Despite the joy of travelling across the world to play the sport he loves, Littler's daily schedule demonstrates the relentless nature of life on tour.
"Some places, we go to Germany quite a lot," Littler told the Daily Star.
"But usually it's hotel, food, and then you're off to the venue to play darts. We finish very late."
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The late finishes aren't exactly conducive to a healthy diet, either.
"And then you can't just go to a salad place, but most of the time I won't eat because it's not a good time to eat at 11pm/12am," Littler said.
"Most of the time you just want to go to bed."
Unfortunately for Littler, that's where he tends to spend most of time despite being in exotic locations across the continent and the world.
When asked whether his schedule allows for some spare time to go out and explore, Littler replied: "Not really, because the schedule is tight!
"So I just want to be in bed all day, but when we go out, we go and have a look around."
Littler's next venture abroad is Dublin as he and seven of his rivals gear up for night three of the Premier League on February 20.
The 18-year-old will look to make it two titles in a row having emerged victorious at night two in Glasgow last Thursday.
However, Littler's triumph was not without controversy as the crowd at the OVO Hydro was widely criticised due to excessive booing and whistling.
The unruliness even caught the attention of Littler, who described the patrons' behaviour as 'pretty bad'.
Idiots! Former darts world No.1 calls out Premier League crowd rowdiness after Luke Littler criticism