Seaway Bank and Trust Company, Seaway Bank And Trust Company Basic Info Reviews Routing Numbers Map & Direction Name: Seaway Bank and Trust Company, Seaway Bank And Trust Company Main Office: Yes Service: Full Service Brick and Mortar Office Location: 645 East 87th Street Chicago, Illinois 60619 Cook County View other branches Phone: 773-487-4800 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071001216YY071921707YN075017853YN From: To: