We found this cheap business class from Cairo, Egypt to São Paulo, Brazil for $1,792, round trip on Ethiopian Airlines. This fare is available from May 2025 to March 2026. Sample flight:

You can use Google flight search, and pull up the calendar to view the available dates:

Click here for the best deals on the accommodations in São Paulo!
On the long haul leg of the flight, you will be flying with Ethiopian Business Class Boeing 777. Ethiopian Airlines has a fleet of 10 Boeing 777s, comprised of six 777-200LRs and four 777-300ERs. These are the most consistent planes in Ethiopian’s fleet, as they all feature the same fully flat beds and Wi-Fi.
These planes have fully flat Zodiac Aura Lite seats, which are in a 2-3-2 configuration. These are also the only planes in Ethiopian’s fleet to have middle seats in business class. At least you know exactly what to expect when flying Ethiopian’s 777 business class.

The purchase qualifies for the Star Alliance mile and status accumulations. The ticket includes priority check-in, airport lounge access, business class meals, two pieces of checked in luggage and amenity kit.
Even though you can probably save a few bucks by booking with some of the budget websites, we recommend booking directly with airline’s website to ensure better customer service post sales. Deals so good wouldn’t last. So, act fast!
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*As airfare can change daily, the fare we find and post here cannot be guaranteed for you when you book. It only reflects the fare at the time we posted. Also airlines can only guarantee the booking class, not the type of aircraft. It is possible aircraft/seats used on that day being different than originally posted.