In the previous episode, Gloria said she'd booked the rest of the family in coach. But in the final scene of this episode, Phil and Claire are clearly in the first class section of the plane.
When Phil gets stuck on a hammock on top of Jay, Phil tells him that what Jay is feeling is his wallet that he puts in his front pocket. However you can see what looks like a wallet in his back pocket.
During the scene with the family by the pool at one point you can see Mitch and Cam walking toward the pool to join the family. Neither Eric Stonestreet or Jesse Taylor Ferguson have either of the twins that play Lily, and yet when they are by the pool Cam has Lily in his arms.