Yes, you can change a British Airways (BA) economy flight, but the "flexibility" depends entirely on the specific sub-category of your ticket. If you booked a "Basic Economy" (Hand Baggage Only) fare, these are generally "non-changeable" and non-refundable; if you can't make the flight, you typically lose the value of the ticket unless there is a significant schedule change by the airline. However, "Economy Standard" and "Economy Plus" fares allow for changes, though they carry a change fee (often ranging from $50 to $200) plus any "difference in fare" between the old and new flights. In 2026, BA has maintained some of its "Book with Confidence" DNA, allowing for easier online changes through the "Manage My Booking" portal. If you purchased a "Flexible Economy" ticket, you can change the date and time without a fee, paying only the fare difference. Always check your specific "Fare Rules" before clicking buy, as the price gap between a completely "frozen" Basic ticket and a "changeable" Standard ticket is often less than $40, making the latter a much safer investment for uncertain travel plans.