For airlines at least, it does not look good. Goldman Sachs now expects the recovery in air travel to take at least an extra year — to 2023 instead of 2022 — to return to 2019 levels, according to the latest update to the firm’s COVID-19 recovery forecast on June 28. Domestic travel is still expected to come back first, though that will be led by leisure travelers and not the high-revenue business flyers many carriers depend on.