Delta and United Airlines via Expedia have round trip airfares travelling to and from Seattle (SEA) and Nantucket MA (ACK) for $ 248, making 1 stop. You may end up on mixed airlines due to limited availability. These are basic economy fares. Be careful, on United you are only allowed one small personal item while on Delta’s basic economy, you may bring one small personal item and one free carry-on bag.

Travel Availability:[INDENT]Departs SEA: June 6, 11-12