Update... Due to early demand, LAX-SEA ,increased capacity & aircraft upgrades..

DL1026 (formally FLT#4523) upgraded to 757-200
DL4591 CR9 unchanged
DL1853 (formally FLT#4564) upgraded to 738

DL4597 CR9 unchanged
DL1735(formally FLT#4523) 757-200 upgraded and changed departure time.
DL1897 upgraded to 738