7 days of flawless flat iron hairstyles

Grab your straighteners because you're about to see some fab flat iron hairstyles. 

While we all know flat irons can be used to style sleek and straight strands to die for, did you know that they can also be used to create waves and even curls? Yes, it’s true! And after you’ve seen all the amazing flat iron hairstyles we’ve found, you and your straightener will be practically inseparable.

So, whether you’re after an everyday ‘do for the office or a party-chic style for a night out, here we have 7 super sweet looks (including some natural flat iron hairstyles) to see you through the week with ease.

Flat iron hairstyles: Kat Graham with a razor sharp straight bob on brown to blonde balayage hair
Kat Graham’s bob is so sharp we can’t deal. Credit: Rex by Shutterstock

Day 1. Kat Graham’s razor sharp bob

When you need a look that means business, start the week off right with this razor sharp bob. An ultra smooth style that will command all the attention in your morning meeting, take your Monday inspiration from the lovely Kat Graham.

Get the look: It’s her poker straight strands that make Kat’s hairdo look so sleek, but if you are going to straighten your hair make sure you remember to apply some heat protectant first.

We really can’t stress enough the importance of defending your strands against the high heat of styling tools. Luckily, the TONI&GUY Heat Protection Mist protects hair up to a whopping 230 degrees (the maximum temperature that most straighteners go up to) so you can style away, guilt-free.

Flat iron hairstyles: Bella Hadid with dark brown hair in curled under Scarface inspired bob and full bangs
Bella Hadid is that you? Credit: Rex by Shutterstock

Day 2. Bella Hadid’s curled under finish

By day 2, you may have lost that poker straight style (sigh!). But all is not lost, because you can update your look with this retro number, as seen on Bella Hadid.

Channelling major Pulp Fiction vibesBella proves that bobs and bangs are a match made in hair heaven.

Get the look: If you love Bella’s look and want to give it a try, protect your hair beforehand with the TRESemmé Heat Defence Spray. This look focuses a lot on the rolled under ends of the hair, so this protective spray helps to protect the hair from the heat and keep it looking really healthy – i.e. not straggly.

Flat iron hairstyles: Ciara with long bronde hair with light wave in the mid-section
Ciara goes for a half wave style. Credit: Rex by Shutterstock

Day 3. Ciara’s half wave

We love how easy yet effective flat iron hairstyles are. So if you’re in a mad rush and need a carefree hairstyle to last the day, you should try Ciara’s half wave hairstyle.

Get the look: To create natural flat iron hairstyles like Ciara’s, start by straightening the top quarter of your tresses. From there, curl your flat iron outwards (just a little) and then continue straightening to the tips. This will create a soft wave that frames your face and add more body to the mid section of your hair.

Flat iron hairstyles: Ashley Benson long blonde hair with dark roots and wavy finish.
Ashley Benson nails the cool rock-chick look. Credit: Rex by Shutterstock

Day 4. Ashley Benson’s beach waves

Come on, who doesn’t love beachy waves in their hair? Having rocked the look for quite some time now, Ashley Benson has become the poster girl for the carefree style, giving her look a rocker-chick vibe.

Get the look: Starting a few inches from the top of your head, place a small section of hair between your flat iron and, while moving the flat iron down your tresses, rotate the styling tool away from your face, until your reach the tips of your hair.

If you want a more dishevelled finish, allow your waves to cool and gently use your fingers to separate the waves.

Flat iron hairstyles: Rita Ora long blonde hair with s style waves hung over one shoulder
Rita Ora looks beautiful with her S-shape waves. Credit: Rex by Shutterstock

Day 5. Rita Ora’s S-shape waves

It’s Friday and you need a hairstyle to take you from office hour to happy hour, right? Then look no further than this fun-loving wavy style, as seen on Rita Ora.

These S-shape waves are a cross between a modern mermaid and 1920s finger waves, and yep you guessed it: you can create this look using your flat iron!

Get the look: Start by taking a section of hair and place your flat iron close to the root. Begin pulling it down the hair shaft (as you would if you were straightening your hair), then alternately rotate your wrist 45 degrees away and towards your face, as you work your way down.

Pause for a few seconds with every turn, as this will create the soft kinks you need. Continue the process all the way down the piece of hair, leaving a couple of inches free at the tips to create a modern finish.

Flat iron hairstyles: Lauren Conrad with a blonde long bob with side parting and loose hollywood waves
Lauren Conrad looks oh-so glamorous with this wavy ‘do. Credit: Rex by Shutetrstock

Day 6. Lauren Conrad’s Hollywood waves

Ah, old-school Hollywood waves are the perfect look for any fancy occasion, as they simply ooze retro glamour. And whether you’re hitting the dance floor or having casual drinks at the bar, this ‘do will certainly make your Saturday night that extra bit special!

Get the look: Thought heat defence only had one job? While their main purpose is obviously to prevent heat damage, some, like the VO5 Heat Protect Spray have formulas which go above and beyond the port of call. This one has been formulated to give a glossy finish with red carpet worthy shine, so it’s a must for glam waves.

Flat iron hairstyles: Charli XCX - Curly dark brown hair in side parting wearing a denim shirt and jeans
Yes really you can get Charli XCX curls with a flat iron. Credit: Rex by Shutterstock

Day 7. Charli XCX curls

It’s time for Sunday brunch and you want to look your best, so make it look like you’ve pulled out all the stops by creating an ultra voluminous curly ‘do. And while many would use a curling wand to create these hairstyles, flat iron tools can give you just the same results!

Get the look: Our top trick to creating curls like Charli XCX, is by braiding your hair in small sections – the smaller the sections, the more braids you will have, and thus smaller curls. So, we suggest aiming for approximately 10 sections all over.

Secure each of your braids using a hair slide as you go along, before running your flat iron over each braid a few times. Once finished, simply unravel your braids to reveal a stunning set of curls.

Prefer defined curls over soft kinks? Discover another way to curl using your straightener, here