Round Trip Baltimore MD to Seattle Airfares on Southwest Airlines

No special codes or coupons are required. Get these round trip airfares while supplies last.

Important Exclusions

• These fares are basic economy and do not include seat selection or changes.
• Travel is restricted to specific dates in September, October, and November.

Travel Availability: Departs BWI: Sept 1-2, 5, 8-9, 12, 15-16, 19, 22-23, 26, 29-30; Oct 3, 6, 14, 17, 20-21, 24, 27-28; Nov 3-4, 7, 10-11, 14, 17-18; Departs SEA: Sept 1-2, 5, 8-9, 12, 15-16, 19, 22-23, 26, 29-30; Oct 3, 6-7, 14, 17, 20-21, 24, 27-28; Nov 3-4, 7, 10-11, 14, 17-18