In 2026, the choice between "changing" a flight or "canceling and rebooking" usually comes down to the airline's specific fare rules and current price trends. If you hold a "Standard Economy" or "Flexible" ticket, a change is almost always better because most airlines have eliminated change fees, requiring you only to pay the "fare difference." This keeps your original payment in the system and avoids the long wait for a refund. However, if the price of a new flight has dropped significantly, it may be cheaper to cancel for a travel credit and then use that credit to book the new, cheaper flight immediately. Be careful with "Basic Economy" tickets, which are often non-changeable and non-refundable, meaning your only option is to "eat the cost" and book a new flight entirely. Always calculate the "all-in" cost including any hidden processing fees before making the switch, and check if your credit card travel insurance covers the difference if the change is due to an emergency.