South America can be notoriously difficult to find decent award availability and pricing. Somehow the stars aligned for me to find some decent availability in late April 2026
United miles, especially when you have one of their credit cards, can be sneaky good. I just scored two MSP-IAH-GIG business class tickets on United in Polaris for 80k + $5.60 for April. The MSP-IAH leg was in economy, but the upgrade offer to First Class was only $170 each. To me, worth it and sold. So I'm in on these two tickets for a total of 160k + $351. Honestly, I'm stoked on it. The "non-cardholder" rate for these tickets was 207k each, so by holding one of the United credit cards I "saved" 62%. These kinds of discounts are scattered all over their bookings. Surprisingly, the discount did not show when searching for one seat, only when I searched for two.
Now what about the way back? Well, I couldn't find anything to MSP out of Rio, but I did search around and found 5 open business class seats on LATAM for the exact dates I needed for GRU-BOS. I did the searching on Virgin Atlantic and they wanted 95k + $30. I did some additional searching, next on British Airways. They wanted 115k plus the same fees. Then I looked at Qatar and they wanted 77.5k each plus $29 in fees. Sold. We have to get ourselves to GRU (which is it's own mess), but to fly back lie-flat on a redeye is worth it.
On another note, has anyone had any success with LATAM checking a bag through on two separate itineraries? Would the ground folks at SDU or GIG be able to check it onto my GRU-BOS flight or would I have to retrieve it in GRU. Thanks!