Delta Air Lines announced that it will continue blocking middle seats and extend its cap on seating in every aircraft cabin through Sept. 30, 2020 as part of its ongoing efforts to increase safety during the coronavirus pandemic. To reduce the number of passengers on each flight, Delta is capping seating at 50% in First Class; 60% in Main Cabin, Delta Comfort+ and Delta Premium Select; and 74% in Delta One. Middle seats will remain unavailable or not assignable when passengers are selecting seats online or via the Fly Delta app, and Delta will continue to block the selection of some aisle seats in aircraft with 2x2 seating configurations. Starting June 10, Delta will resume automatic, advance Medallion complimentary upgrades to Delta One for domestic travel, First Class and Delta Comfort+, subject to availability and as permitted by the seat caps. Upgrades were previously being managed at the gate. Meanwhile, Delta said it will look for opportunities to upsize to larger aircraft or add more flights on routes where increasing customer demand is driving flight loads closer to its seating caps.