Frequent flyers are finding that airline loyalty programs no longer offer the generous rewards they once did.

Travel experts say upgrades, lounge access, and free perks are becoming harder to earn as airlines tighten benefits.

Many carriers are also reducing the value of reward points, making free flights and premium seats more difficult to redeem.

The changes come as airlines focus on boosting profits and encouraging higher customer spending.

Experts advise travellers to compare loyalty programs carefully and use flexible reward points before values decline further.

For many passengers, staying loyal to one airline may no longer deliver the same value it once promised.