Can we get refunds on a ticket we cancel (to get full value credit), but then later find out the flight itself has been canceled/removed from the schedule? I'm kicking myself for canceling April flights for the flight credit when it's highly likely they'll be outright canceled and I could have gotten a refund.
No. Unless I'm rescheduling an itinerary immediately, I always wait to cancel non-refundable tickets until about 60 min before departure of the first flight.