Tidal propagation directly influences salinity gradients, sediment transport and habitat dynamics in estuarine ecosystems. This study investigates the spatial and temporal dynamics of tidal propagation and the influence of ocean tides and sea level change within the Delaware and Chesapeake Bay estuarine systems. The primary data products in this study are derived from the Surface Water and Ocean Topography (SWOT) satellite mission, specifically the 100x100m raster and pixel cloud (PixC) products. Following cross-validation with in-situ measurements from NOAA tide gauges and USGS stream gages, we quantify signal attenuation and phase changes of ocean tide propagation within riverine-estuarine systems. We focus on the Potomac River and Delaware River within Chesapeake and Delaware Bays, respectively. Preliminary results reveal amplification of tidal signals in upstream reaches of both the Delaware and Chesapeake bay estuary systems. These patterns may be reflective of the coastal influence from bay geometry or local bathymetric features, although further analysis is required to confirm the source of the observed tidal amplification.