Home Flight Deals Alaska Air: Seattle – Chicago (and vice versa). $116 (Basic Economy) / $206 (Regular Economy). Roundtrip, including all Taxes By 3 months Ago Share on FacebookShare on Twitter Categories: Flight Deals Related Content United: San Francisco – Taipei, Taiwan. $800 (Basic Economy) / $960 (Regular Economy). Roundtrip, including all Taxes By June 1, 2024 United: Los Angeles – Chicago (and vice versa). $151 (Basic Economy) / $241 (Regular Economy). Roundtrip, including all Taxes By June 1, 2024 American: San Francisco – Shannon, Ireland. $454 (Basic Economy) / $654 (Regular Economy). Roundtrip, including all Taxes By June 1, 2024 United: Seattle – Brussels, Belgium. $428 (Basic Economy) / $628 (Regular Economy). Roundtrip, including all Taxes By June 1, 2024 United: Portland – Dublin, Ireland. $408 (Basic Economy) / $608 (Regular Economy). Roundtrip, including all Taxes By June 1, 2024