Yes, you can ask to move seats on a plane, but the "how" and "when" are critical for success in 2026. The best time to ask is after the "Boarding Complete" announcement but before the aircraft departs the gate. You should quietly signal a flight attendant and ask if there are any open rows or seats available. In 2026, most airlines use sophisticated seating software that tracks "Premium" seats (like Extra Legroom or Economy Plus); flight attendants are often restricted from moving you into these higher-priced tiers for free unless the plane is unbalanced. If the flight is not full and you are moving within your own cabin class (e.g., from one standard economy seat to another), they will usually say yes. However, never move before asking, as the crew needs to know exactly where everyone is for weight and balance calculations and manifest accuracy. If you are moving due to a "conflict" (like being seated next to a crying infant or a disruptive passenger), be discreet and polite, as the crew is more likely to help a passenger who isn't making a scene in the cabin.