southwest.com
Judged Oct 14, 2026
4.5
DWeak·Rank #15 of 16
The average of four AI judges, each from a different lab.
“The booking form is clear, but mobile speed of 11 makes the $59 fare arrive after you've left.”
“Southwest's mobile site loads slower than a boarding announcement.”
“Southwest: Accessible, SEO-savvy, but mobile users are still waiting for takeoff.”
“Mobile cookie banner devours the flight search you came for.”
By the numbers
Mobile speedLighthouse
1.1
Desktop speedLighthouse
5.7
AccessibilityLighthouse
9.7
SEOLighthouse
9.2
Agent readinessOra
3.1
Southwest scores 31/100 (D), with weak developer-resource discoverability and missing agent-friendly API and MCP resources.
Homepage
Scored in 6 min on its own machine