The US government is considering a major change to airline fare advertising rules that could allow airlines to promote lower base ticket prices separately from mandatory government taxes and fees.

The proposed rule by the US Department of Transportation (DOT) seeks to modify existing airfare advertising requirements, which currently require airlines and ticket sellers to display the full ticket price, including government-imposed taxes and fees, in advertised fares.

Under the proposed changes, airlines would have greater flexibility in how they present airfare prices to customers. The move could allow carriers to highlight the base fare portion of a ticket while separately showing additional charges such as government taxes and fees.

The Transportation Department said the proposal is aimed at reducing regulatory restrictions and giving airlines and ticket agents more freedom in marketing airfares. The department is reviewing whether current rules place unnecessary limitations on how ticket prices can be displayed.

Supporters of the proposal argue that the change could help airlines offer more pricing options and make promotional campaigns easier. However, consumer advocates have raised concerns that displaying lower base fares separately could make it harder for passengers to understand the actual amount they will pay.

Air travel pricing often includes multiple components, including base fares, airport charges, government taxes, baggage fees, and other optional services. Any changes to fare advertising rules could affect how travellers compare ticket prices across airlines.

The proposal is part of broader efforts by US aviation regulators to review airline consumer protection policies and pricing transparency requirements. The DOT is expected to gather feedback before moving forward with any final decision.

If implemented, the new rule could significantly change how airlines advertise fares and how passengers evaluate flight costs before booking tickets.