Roundtrip Baltimore to Seattle Airfares on American Airlines

No special codes or coupons are required. Grab these roundtrip airfares while available.

These basic economy roundtrip airfares from Baltimore (BWI) to Seattle (SEA) on American Airlines include one stop each way. A personal item and carry-on bag are permitted. Seat selection is not included, and generally there are no changes allowed for basic economy fares. If traveling with children, American Airlines policy is to seat families together.

Travel is available on select dates:

• Departs BWI: October 24-25, 28-31; November 1, 4-5, 9-15, 17-19; December 4-13, 16; January 6, 8-14, 17-29, 31; February 1-4, 7-11, 13-14, 17-18, 24-26; March 3-4, 10-11, 17-18, 24-25, 31.
• Departs SEA: October 24-25, 27-31; November 1-5, 8, 10-15, 17-19; December 2-16; January 6-30; February 1-11, 17-21, 23-25, 27; March 3-4.

This deal expires on March 31, 2026.