Roundtrip Seattle to San Francisco Nonstop Airfares on Alaska, United or Delta Air Lines

This deal on nonstop roundtrip airfares is available while supplies last, for travel through March 31, 2026. Flights depart from Seattle (SEA) and San Francisco (SFO) on select dates. These are basic economy fares.

On Alaska and Delta, a personal item and carry-on bag are permitted. United basic economy fares include a personal item only. Seat selection and changes are not permitted.

Travel Availability: Departs SEA: Jan 12-15, 17-31; Feb 1-12, 14-15, 17-28; March 1-29, 31 Departs SFO: Jan 12-31; Feb 1-15, 17-28; March 1-19, 22-26, 29-31