Although Jesus never mentioned the rapture, we can see what appears to be a glimpse of the raptured Church in Matt. 24:31, and Rev. 17:14 confirms that when the Lord comes back the Church will be with Him. By the way, the parallel account in Mark 13:27 includes surviving Tribulation believers (from the ends of the earth to the ends of the heavens.)
But we have to remember that in the Olivet Discourse Jesus was speaking to Israel in the end times. The Greek word translated elect also means chosen, so the Jews are God’s elect as well. This is also true in Matt. 24:22 where the Lord promised to bring the Great Tribulation to a close “for the sake of the elect”. Although He intends to completely destroy the nations among which His people have been scattered, He will not destroy Israel but will only discipline them (Jeremiah 30:11).
Since the first resurrection of Israel takes place at the time of the 2nd Coming (Daniel 12:1-2) the elect who accompany the Lord will surely include them