Barry: Caitlin, you can fight this.
Killer Frost: I know. But I don't want to.

Iris: I need you to make me a promise, okay? If things don't go our way. If Savitar kills me...
Barry: He won't.
Iris: If he does, Barry--
Barry: He won't.
Iris: If he does, Barry, promise me that you will be there for my dad. Don't let him push Cecil away. Don't let him spiral out of control. Make sure that him and Wally--
Barry: Stop. We're not going to talk about this. You're not going to die. I told you. I have a plan.
Iris: Barry, I need you to promise me, okay? I'm being serious. Promise me. Promise me you're going to make sure my dad is okay.
Barry: I promise.

Iris: He's a murderer.
Barry: I know he's a murderer. But how many murderers have we put in prison? How many bad guys have we taken down? Don't we deserve one win? After everything that we've done?
Iris: Life doesn't keep score, Barry.

Abra Kadabra: If you let me go, I will tell you Savitar's greatest secret. It's the key to defeating him. The key to stopping him.
Barry: What secret?
Abra Kadabra: I know who he is. I know his name.

Can you please stitch me up? Because I think I need to pass out.

Caitlin

I was so focused on not hurting you as Killer Frost that I forgot I could hurt you as Caitlin Snow. And for that, I'm very sorry. So I understand if you don't trust me anymore, but maybe you can find it in your heart to forgive me.

Caitlin

You're going to die for all the things you've done. I cannot wait to see you be put to death.

Gypsy

Cisco: It looks like things between you and Julian are a little [pauses for effect] frosty.
Caitlin: [gives him a dirty look]
Cisco: It's too soon for the cold puns, huh?

Cisco [to Wally]: We win and we lose as a team. I'm coming with you.
J'onn: Me too.
Cisco: Look, J'onn. I respect this whole special agent situation you've got going on. But this problem right here needs someone with...
J'onn: [transforms to his Martian form]
Cisco: ...green skin and a sick ass cape.
J'onn: Call me the Martian Manhunter.
Mon-El: I think you'll find that J'onn's a lot more than just a pretty face.

Barry [singing]: I'm your super friend. Your super friend. I'll be there in the nick of time if you're ever in a spot.
Kara [singing]: And if not there in time, you can just go back in time and give it another shot!
Barry: I'm actually not supposed to do that anymore.

Music Meister: You're in a movie musical. All you have to do is just follow the--
Kara: [excited] The yellow brick road?
Music Meister: No. The script.

Man, how did you get out of that cell?

Cisco

The Flash Season 3 Quotes

So, what should we call this brave new world you whipped up for us? I was thinking...Flashpoint.

Eobard Thawne

Barry: We actually went to elementary school together. PS 23?
Iris: Oh! That's right. I remember. Gary!