Collecting data in time is crucial for the wireless sensor network (WSN), especially for some WSNs who suffer from inconstant link connections. Our observations in the intertidal wireless sensor network (IT-WSN) reveal that end-to-end delay is severe and a big challenge to be solved. Existing routing protocols perform well in WSNs with good link quality but show deficiency when node states change dynamically, especially in IT-WSNs. In this paper, we analyze the components of delays in the IT-WSN, and find it is feasible to decrease the end-to-end delay with a node state associated routing protocol. To this end, we propose SADO, which combines link quality and node state for routing path selection. We investigate the feasibility of SADO with real traces we gathered from the IT-WSN deployed in Zhoushan, China and evaluate the performance in large scale simulations. The results demonstrate that SADO can decrease the end-to-end delay up to 63.79% in average with limited overhead.