Yes, you can technically cancel one leg of a flight, but in 2026, the financial implications depend heavily on your "Fare Class." If you booked a "Round Trip" ticket, canceling the outbound leg (the first half) usually results in the airline automatically canceling the return leg as well, unless you contact them to re-issue the ticket. If you want to cancel just the return leg, you can often do so through the airline's app, but you are unlikely to receive a refund unless you purchased a "Flexible" or "Refundable" fare. For "Basic Economy" tickets, "canceling a leg" usually means forfeiting the value of that portion entirely. A major 2026 aviation trend is "Trip Flexibility" add-ons, which allow for one-off leg changes for a small fee ($20–$50). If you simply "No-Show" for one leg, the airline will likely cancel the rest of your itinerary for security and revenue management reasons, so always call or use the "Manage Booking" tool first.