Miami → Buenos Aires Business September 2026 (LATAM Award Sale)
LATAM Lie-Flat Business to South America from 60K Miles Each Way
Miami (MIA) to Buenos Aires (EZE), Business, One Way.
LATAM's lie-flat business class to South America dropped to 60,000 miles each way, nonstop from Miami, New York, Boston, and Orlando to Buenos Aires, Santiago, and São Paulo. The same nonstop business seat sells for $2,300+ one-way in cash, so this worked out to roughly 3.8 cents per mile. Best availability ran August–September 2026, with peak-season Miami–Santiago space showing into 2027. This deal has expired.
Open a free Japan Airlines Mileage Bank (JMB) account. Your account must be at least 7 days old before you can redeem, and brand-new accounts sometimes can't run award searches for the first few days — set this up early.
Log in and select "JMB Partner Airlines Award Tickets."
Choose LATAM as the operating airline, pick One-way or Round-trip, then set Business Class and your passenger count.
Search your exact dates out of Miami, New York, Boston, or Orlando. Award space is date-by-date, so check several options before you commit to one.
Confirm the seats are actually showing before you transfer anything. Bilt and Rove move to JAL 1:1; Capital One transfers at 1,000 points to 750 miles.
Complete the booking and pay the roughly $50 in taxes with a card that carries travel protections.
If JAL's site gives you trouble, the same seats book through Finnair Avios (about 75–76K one-way, phone only) or Virgin Atlantic (95K one-way, bookable online).