Flynn is described as precocious, has a great sense of adventure, is mature for his age, and is mischievous by nature. He has a lot of interesting hobbies which include video games, karate, robots, and magic tricks. He also enjoys bacon and energy drinks. Whenever the doorbell rings, he (along with his sister CeCe) has a tendency to yell before opening the door ("I'll get it, mom!") He is a very mischievous kid who gets scared watching horror movies. When no one is around, he likes to run around in his underwear and pretend he's a cowboy, as seen in "Kick It Up". In "Heat It Up", it is revealed that Flynn was promised by his dad that they would take a road trip but he bailed out on him which in turn made Flynn mad, and even more upset when his mom promised a road trip but canceled when conflicts of interest with Rocky's mom came up. Flynn also has had a few pets including a goldfish (Mr. Goldberg) that Deuce accidentally killed, and a baby tarantula that was killed by Ty. Even though it is shown that he is sly and greedy, he does have a soft spot and can be kind. It is revealed that he has a teddy bear named Mr. Wubby.
CeCe is Flynn's older sister. She often babysits him while their mother is at work, where she cooks for him (including bacon, his favorite, and One-Minute Breakfasts), puts him to bed, and tries to keep him out of trouble. Although their relationship is usually shown to be made up of bickering and typical sibling rivalry, CeCe was the first to comfort him about their failed roadtrip in "Heat It Up". The two of them understand their parent's divorce situation and together even had to explain it to Rocky in "Parent Trap It Up". (See: FlyCe)
Flynn has known Rocky for a long time since she is his older sister's best friend. Therefore he thinks of her as another older sister. He loves her and missed her almost immediately after she "left" in the limousine to the airport in the episode "Model It Up". It was thanks to her advice that he decided to take off on an adventure, tagging along in his sister's suitcase while they were en route to Alabama then Los Angeles in "Shake It Up, Up & Away". Rocky helps CeCe babysit Flynn in episodes throughout the seasons. (See: Flocky)
Flynn and Deuce are close friends, with Deuce babysitting him several times throughout the series. They often get into crazy situations such as chasing a loose mouse in "Wild It Up" and holding a funeral for Flynn's goldfish that Deuce accidentally killed in "Reunion It Up". In "Throw It Up", Flynn tricked Deuce into blowing off the errands set by Ms. Jones and going to a baseball game instead, getting them both grounded. Deuce is easily influenced by Flynn to go off-track due to Flynn's charm and sneaky personality. Deuce has a similar personality so they easily work well together, though Flynn is seen usually out-smarting Deuce, such as trapping Deuce to a chair in chains in "Show It Up". Flynn also helped Deuce MC the talent show at JHHS, pretending to be Deuce's second head. (See: Deucynn)
Flynn and Ty are good friends and neighbors and Ty babysits Flynn almost all the time. He is like a big brother to Flynn and he has taught him many things like how to whistle, dance, and flirt throughout the series. He taught Flynn how to talk to girls, in-particular Destiny, in "Hook It Up" .Flynn was jealous when Ty was paying a girl more attention than him in "Egg It Up", going as far as firing him and hiring Gunther instead. Flynn has also helped Ty, especially when it comes to his aspiring rap career. They get into interesting situations and adventures together, such as working for a toy company as toy testers ("Shrink It Up") and auditioning for a commercial ("Vatalihootsit It Up"). Ty is usually heard calling Flynn "Little Man." (See: Tynn)
Henry and Flynn are best friends and pretty much the complete opposite of each other; Flynn being outgoing, while Henry keeps to himself. They met in "Add It Up" after Henry was assigned to tutor CeCe in math. Flynn introduced him to normal boy things like video games. The two often get into interesting situations together. They go to karate class together ("Kick It Up") to help Henry get over being hit by a girl. Flynn helps Henry to prepare for a camping trip in "Match It Up". In "Twist It Up", they both play with an evil robot that comes to life and in "Apply It Up", Henry informs Flynn of a meteor that is heading towards earth, and they call NASA to try and prevent it. In "Judge It Up", Henry tries to teach Flynn how to ride a bike, but in the end just creates a bike that automatically drives itself, making Flynn think that he actually knew how. (See: Flynnry)
Gunther was introduced to Flynn when he babysat him with Tinka in "Meatball It Up". Flynn takes advantage of the fact that they come from a foreign country, making up many things babysitters do in America. He watched him again, when they were left behind by everyone else while Rocky was rushed to the hospital ("Break It Up") and in "Egg It Up" when Flynn fired Ty as his babysitter. They appear to get along well while Gunther takes over as his babysitter, dressing up like rock stars and performing together. Gunther and Ty worked together to get back at Flynn for using both of them in the same episode. (See: Guntynn)
Flynn and Tinka have only interacted a few times. She and Gunther babysit him for the first time in "Meatball It Up", where Flynn calls her "Tinkle". They then babysit him again in "Break It Up" where they play a few games while the rest of the group is at the hospital following Rocky's foot injury. Tinka made a "Little Flynn" sock puppet, much to his delight, but Gunther scared him away with the Lake Monster sock puppet and when he ran away she laughed. In "Oh Brother It Up", Tinka helps Flynn bake a cake for Jeremy Hunter's birthday.
Flynn and Logan first meet in the episode Oh Brother It Up. Flynn likes him because Logan makes a great impression towards him, They seem to share similar personalities and they love teasing CeCe. (See: Fogan)
Egg It Up - Flynn replaces Ty with Gunther as his babysitter, thus causing Ty and Gunther to compete. Later, Flynn tricks them into doinig his homework for school, and so, Ty and Gunther write the essay in means of embarrassing Flynn.
He is bilingual since he can also speak Japanese ("Made In Japan")
"Training wheels? Oh no no no no, I'm Flynn Jones, Flynn Jones did not use sippy cups, Flynn Jones does not use bumpers for bowling and Flynn Jones never had a potty seat, oh no, he went straight to the toy-toy! And Flynn Jones does not need training wheels, so step aside pro-fessor (Falls off) Don't just stand there get the training wheels,"
"The butterknife cuts what the butterknife wants."
"You're having a party and you didn't invite me?"
(Doorbell or phone rings) "I'LL GET IT MOM!" But when Mrs. Locassio babysits him, "I'LL GET IT MRS. LOCASSIO!"
"Hello, old friend."
"It's the circle of life!"
"Make it out to Flynn. That's a fly, followed by a N-N!
"We're fresh out of lions."
"I don't want to be diaper boy!"
"Bang! Pow! Zoom!"
"Back off! That takes 2 hours in the morning!"
"COULD YOU KEEP IT DOWN, I'M TRYING TO SLEEP!"
"I'm having a nightmare! Wake up Flynn, wake up!"
"Nice touch! If you pull that one out on the bus, you just might make it through this week with a minimum number of wedgies!" Henry: "What's a wedgie?" Flynn: "Now this is a lesson I'm dying to teach!"
(To Deuce) "Why? Do you looovee them?"
"Oh, wow you can lift 50 pounds, I hope that impresses her."
"Wow, what did I ever do to deserve all this?"
"Oh, times Up! (gets up and walks away) ALRIGHT MUM, I'VE PLAYED WITH HER AN HOUR. GIVE ME MY MONEY NOW!"
"In 8 years, I'm going to punch the poop out of you!"
"Eww, that's what grandma eats!"
"It looks like a big bag of vomit!"
"Sure she has time to dance on TV but she can't pick me up a lousy pack of bacon!"
"It's something I like to call getting even."
"Oh yeah? Well I just killed a zombie, stole a bus, and spray painted the word booger on the side of a cop car."
"Your plan has one fatal flaw, me, alright we all know the drill, I want fifty bucks, hush money,"
"Cameraman? If god wanted me to be behind a camera, would he have given me such an adorable face?"
(To Deuce) "Hey what's black and white and has one giant eyebrow? You!"
"So what I'm hearing is, you think I'm sweet,"
(After CeCe and Rocky are not friends anymore) "I suggest you two share a nice frosty glass of GET OVER IT".
"You want some bicuits to sop up that gravy?"
"Oh, hello Ty,"
"I'll save you! (sees CeCe with the ruined dress) Yeah, I'm not gonna save you from that."
The image gallery for Flynn Jones may be viewed here.