Delta says it will continue to cap seats in all of its cabins and block middle seats from being booked to create social distancing onboard its flights through September 30, 2020.

The US carrier, which initially introduced social distancing on its aircraft in April, said it will be capping seating at 50 per cent in its first class cabin; 60 per cent in main, Delta comfort+, and Delta premium select cabins; and 75 per cent in Delta One to reduce the total number of customers on board.

All middle seats will continue to be shown as unavailable or not assignable when selecting seats online or through Delta’s mobile app, the carrier said. It said it will also block the selection of “some” aisle seats in aircraft with 2×2 seating configurations.

Delta said it will also “look to” upsize to a larger aircraft type or add more flying on routes where increasing customer demand is driving flight loads closer to the seating caps.

Starting June 10, Delta will resume automatic Medallion upgrades to its Delta One (domestic U.S.), first class and Delta Comfort+ cabins “subject to availability and as permitted by the seat caps”.

The airline told Business Traveller Asia-Pacific that it has added about 100 daily flights in June compared to May.

Delta publishes updated June flying schedule