In 2026, extending a British Airways or Virgin Atlantic companion voucher is generally not allowed under standard terms and conditions; the "book-by" and "travel-by" dates are strictly enforced by the airline's systems. However, there are a few "pro-traveler" workarounds. If you have a valid medical reason or a significant life event, you can call the executive club and request a "discretionary extension," though this is rarely granted without documentation. A more reliable method is to book a "placeholder" flight before the voucher expires for a date far in the future. If the airline later makes a "significant schedule change" (usually 2+ hours), you are often given the option to rebook for a different date within a 12-month window, effectively extending the life of the voucher. Additionally, some premium credit card issuers may offer a one-time extension as a "retention offer" if you threaten to cancel the card. Always check the specific 2026 rules for your voucher type, as "earned" vouchers often have different flexibility than "promotional" ones.