Hawaii's airports are seeing a wave of canceled flights that's bad news for travelers trying to get home or start trips, after a Friday air traffic ground stop set off a chain reaction.

• Cancellations more than doubled at several Hawaii airports since the ground stop, hitting Honolulu, Kahului, Lihue, and Kona.
• Alaska/Hawaiian, Southwest, and United have the most canceled flights in the state.
• Dozens of passengers slept overnight at Honolulu's airport, and some travelers faced waits of 8-9 hours just to get rebooked.
• Airlines say they're still working to get planes and crews back into position, with Alaska Hawaiian alone canceling over 400 flights affecting more than 37,000 passengers.

Outlook: Airlines expect it will take more time to fully restore normal schedules as they reposition aircraft and crews.