w e b 77Up to 365 in a 3-class confuration. The first -300ER was delivered to Air France end of April 2004. It has become the best selling 777 variant. The -300ER can fly 34% further thanAirplane Boeing 777-300ER (77W) United with 4 classes and 350 seats on board. Use airplane seat map to find which ones are more comfortable and which should be avoided. Tap the seat