Possible just got be creative, hope for a bit if luck on availability and be prepared to spend a lot if time in the air.
Direct flights into BUE, are via,
via JNB (usually via BKK)
Via Europe (try FRA or MUC on LH,)
Via NYC/IAH in USA, or YYZ
Getting flights to BKK is relatively easy. I would first do a BKK-BUE search and start exploring from there.
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