Yes, you can effectively "cancel" one person from a multi-passenger Easyjet booking, but the process is handled as a "partial cancellation" or a "No-Show." Unlike some legacy carriers, Easyjet does not usually offer a "refund" for a single passenger unless you are within the 24-hour grace period from the time of booking (minus a cancellation fee). If you are past that 24-hour window, the most common way to handle this in 2026 is to simply leave the passenger on the booking and have them "No-Show" at the gate; this ensures the rest of the group’s itinerary remains unaffected. Alternatively, you can call Easyjet customer service to "split" the booking, moving the person who isn't traveling onto a separate reference number so you can manage their flight independently—this is useful if they want to change their flight date for a fee rather than losing the ticket entirely. While you won't get your money back for the fare itself, you may be able to claim a refund for the Government Air Passenger Duty (APD) taxes for the unused seat by contacting their support team after the flight has departed.