What are the most direct flights to Hawaii from these cities: New York, Newark, Portland, San Francisco, Chicago, Minneapolis, Philadelphia, Denver, Sacramento, London, Calgary?
Direct flights to Hawaii are available from most of those cities. My research reveals the following details. However, the airlines frequently change routes and schedules, so be sure to check before booking.
The most comprehensive software for finding current flight information, including direct flight information is Google’s Matrix travel. It’s free with multiple and advanced search options.