It is around 1,050km from Wuxi to Dongying. And there is no direct flight or train between the two cities. However, you may go to Nanjing first and then take a train (2556/2557) to Dongying directly, which costs about 15 hrs. Or, you may take a flight to Jinan after arriving at Nanjing as one flight from Nanjing to Jinan is available daily. And then you can take a train to Dongying.