trying to book 4 tix in economy from SFO-PTY for depature on 4/1/23 and return on 4/8/23. Prefer to fly COPA since I want nonstop flights instead of connecting through IAH
When searching OW flights for 1 pax from SFO-PTY, the only nonstop flights (COPA) I see are available through 2/28/23. Nothing for all of March and certainly nothing into April
Today (5/5/22) is 331 days before 4/1/23 so I thought the schedule would be open. Same on Copa's own website. You can only book through 2/28/23.

So questions are:
1. When does Copa release their inventory (for award or revenue bookng?)
2. Do they release it daily or a month at a time? (If monthly when do they release them)?
3. Is UA the only program where I can use my miles to book Copa flights? (I'm not aware of any other program (besides COPA itself) that you can use to book COPA flights)
4. Someowhat related--can I use United Travelbank to book a COPA flight?