{"version":"1","limitations":["Confirm the exact aircraft configuration with the operating airline; aircraft can change.","This API does not provide flight assignment, seat availability, prices, or booking.","Missing measurements or cautions are unknown, not proof that a seat has no drawbacks.","A matched layout means counts agree, not independent verification of every seat fact."],"aircraft":{"id":"dl-delta--a321neo-v-1","airline":{"id":"dl-delta","name":"Delta Air Lines","code":"DL","configurations":34,"guideUrl":"https://knowmyseat.com/airlines/dl-delta"},"model":"Airbus A321neo","variant":"A321neo (3NE · 194 seats)","airlineConfigurationCode":"3NE","collectedAt":"2026-10-01","listedCapacity":194,"mappedPassengerSeats":194,"layoutStatus":"matched","cabinMismatch":false,"conditionalCabins":[],"cabins":[{"name":"Delta First","category":"First class","seats":20,"pitch":"37\"","width":"21\"","recline":"6\""},{"name":"Delta Comfort","category":"Extra legroom economy","seats":60,"pitch":"33-34\"","width":"18\"","recline":"3\""},{"name":"Delta Main","category":"Economy","seats":114,"pitch":"31\"","width":"18\"","recline":"3\""}],"cabinCoverage":[{"code":"F","name":"Delta First","listed":20,"mapped":20},{"code":"P","name":"Delta Comfort","listed":60,"mapped":60},{"code":"E","name":"Delta Main","listed":114,"mapped":114}],"warnings":["3NE has 20 Delta First, 60 Delta Comfort and 114 Delta Main seats. The complete drawing matches every seat label and marks 23 Main seats as Preferred; that label does not establish extra legroom. Delta Comfort is extra-legroom Economy. Standard cabin pitch and width are published; exact front-area and exit-row pitch remains unknown. Recline measurements and other imported seat cautions remain unverified. All cabins list Wi-Fi, AC and USB power, personal video and satellite TV; connector types, charging rates and screen sizes are not confirmed. Child-seat fit limits are a separate measurement from nominal seat width. The accessible lavatory is designated aft left behind row 39; confirm assistance suitability with the airline. Service-marker positions remain approximate; confirm the layout for your flight."],"guideUrl":"https://knowmyseat.com/aircraft/dl-delta--a321neo-v-1","apiUrl":"https://knowmyseat.com/api/v1/aircraft/dl-delta--a321neo-v-1","seatsUrl":"https://knowmyseat.com/api/v1/aircraft/dl-delta--a321neo-v-1/seats"},"data":{"label":"12B","cabinCode":"P","cabin":"Delta Comfort","deck":"1","position":{"types":["middle"],"label":"Middle","basis":"schematic","note":"Position is derived from this schematic. Window-side seats may have missing or misaligned windows; aisle-side does not confirm an unobstructed route to the aisle. Unclear arrangements are not classified."},"dimensions":{"pitch":"Not listed","width":"18\"","recline":"3\"","bedLength":null,"note":"Seat-specific details are shown where available; other values may use cabin measurements. Unlisted dimensions remain unconfirmed."},"amenities":{"wifi":"Equipped","entertainment":"On-demand entertainment","power":"AC + USB power"},"guidance":{"label":"More space, some tradeoffs","benefits":["Extra legroom"],"cautions":["No floor storage during takeoff and landing","Tray table is in the armrest","Near a lavatory"]},"guideUrl":"https://knowmyseat.com/aircraft/dl-delta--a321neo-v-1?seat=12B"}}