United said Monday it would add more than 400 daily flights to its July schedule and increase services to re-opened European destinations as easing pandemic restrictions spur summer travel demand. Summer travel bookings rose 214% from 2020 levels, the airline said, adding that it planned to fly 80% of its US schedule compared to July 2019. Ratings agency Moody’s has predicted that steady vaccine rollouts across geographies would drive a rebound in commercial air travel, with a strong recovery in US domestic travel, which began in March, to spread globally over different time-frames. The EU has recommended easing COVID-19 travel restrictions next month to let foreign travelers from more countries enter the bloc. United said it was giving travelers more options to visit Europe by adding a fourth weekly flight to Dubrovnik, Croatia as well as more seats to Athens, Greece. <br/>