For border control document requirements, refundable tickets can be purchased via Trip.com or Ozon Travel (with specific add-ons).
It is technically possible to verify PNRs at the border, though practice varies. Bus tickets for onward travel are also a valid alternative for land border crossings, with apps like 'ClickBus' and 'Buson' recommended for South American travel.
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Proof of onward travel for Brazil entry: if requested, fully refundable tickets to a third country (e.g., Argentina) are a valid workaround.
Passengers can cancel these tickets for a full refund immediately after clearing immigration. Verify the ticket fare rules for penalty-free cancellation before purchase.
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