2:28 - Ryder: "Eh, wish I could take credit. Idea came from an old friend of yours." The phrase "old friend" is also used in Attack of the Clones (where Palpatine suggests "an old friend, like Master Kenobi" to protect Padmé [6:34] and Count Dooku calls Mace Windu "my old Jedi friend" [1:50:24] and just "old friend" [1:56:05]), in Revenge of the Sith (where Obi-Wan says, "Goodbye, old friend" to Anakin as he leaves for Utapau [51:13] and Yoda refers to Qui-Gon as "an old friend" [2:09:56]), in A New Hope (where Leia sarcastically says, "We, uh, ran into some old friends" when Han asks her and Luke where they've been [1:31:33]), in The Empire Strikes Back (where Yoda says that through the Force, Luke will see "Old friends long gone" [1:17:05]), and in Return of the Jedi (where Luke says, "I have a promise to keep to an old friend" [37:37] and Han calls C-3PO "an old friend of mine" [1:11:53]).
7:55 - Ezra (to Kanan): "Now's our chance to find out what the Empire's up to." Han uses this same expression in A New Hope when some stormtroopers are distracted by the duel between Obi-Wan and Vader and leave their posts, giving Han and the rest an opportunity to return to the Millennium Falcon: "Now's our chance; go!" [1:32:02]
13:05 - Stormtrooper (to Kanan and Ezra, in disguise as troopers): "What's your operating number?" In A New Hope, an Imperial officer also asks Han this over the comlink [1:15:41].
14:31 - Chopper makes noises that sound like "Trust him! Trust him!" which is what C-3PO says in The Empire Strikes Back about Lando [1:42:12].
19:04 - Ryder (after Kanan and Ezra emerge from the Imperial walker): "I don't believe it. I thought you were in the smaller one." Luke also says, "I don't, I don't believe it" in The Empire Strikes Back, after Yoda uses the Force to get his X-wing out of the swamp [1:13:10].
21:04 - Thrawn (to Governor Pryce): "Patience, Governor." There are a few instances in the movies where characters advise patience, but the closest similarity here is to what Palpatine says to Vader in Return of the Jedi: "Patience, my friend" [38:57].