You can find Bangkok Airways flights on Wingie. Wingie directly gathers instant data of the airline and compares it with other airlines. You can view all Pegasus flights for the date and destination you are looking for, and compare prices with other airlines.
For your Bangkok Airways flights booked from Wingie, you can check-in online here and PNR inquiries via this page.
With Bangkok Airways, you can fly directly to the following cities abroad: Doha, Siem Reap, Phuket.