: Use co-branded credit cards for daily spending to rack up miles. A "free" ticket or upgrade via points is often the most cost-effective method.
: Keep an eye on your inbox 24–48 hours before flying; airlines often send "last-minute" discounted upgrade offers to fill remaining seats. 4. Leverage Your Loyalty buy cheap business class tickets
: If a full business ticket is too expensive, book economy for the short legs and save your luxury for the longest leg of the trip. : Use co-branded credit cards for daily spending