It is possible to redeem your points for air travel through the Chase portal. But the portal's prices for a flight on Condor might vary from what Condor would charge you directly:

https://www.chase.com/personal/credi...s-card-rewards

Also, if you're willing to pay cash instead of redeeming Alaska miles, Condor will sell you a through-ticket CUN-FRA-WAW, with the FRA-WAW segment being operated by LOT or Lufthansa. Such a ticket might be cheaper than buying two separate tickets, and you would get the benefit of through-checking your baggage, and would be protected in the event of IROPS.

Edited to add: Unfortunately, it appears that the Chase travel portal does not sell flights on Condor. And the other options -- to both FRA and WAW -- are more expensive than Condor.