Delta Airlines has extended its daily service to Bermuda from LaGuardia airport in New York.The service was launched in April on a trial basis, but the airline did not commit to the service long-term until it had gauged customer demand.But it has now been confirmed that the company is to keep the seven-day-a-week service running through the off-season and into next summer.The route means that Bermuda now has access to all three of New York’s major airports.