Southwest has Starlink Wi-Fi on some planes: under 99 ms latency. It is free with Rapid Rewards. It works throughout the flight.
Does Southwest have Wi-Fi?
Yes, Starlink
Free with Rapid Rewards
On some planesWhich onesHow good it is
- Under 99 ms latency
When it works
Gate to gate
It works for all of the flight, gate to gate.
Where it works

Everywhere except over Russia, China, India, Pakistan, Belarus, North Korea and Northern Cyprus.
Sources
- Starlink on the whole fleet in fall 2027,Southwest Airlines·
- Southwest Airlines aims to be first U.S. major with Starlink fleet-wide,Runway Girl Network·
- Starlink Business Aviation brochure: latency under 99 ms,SpaceX·
- Wi-Fi powered by Starlink: the airspace it doesn't cover,British Airways·
- Inflight Wi-Fi: off over China, India and Pakistan,Asiana Airlines·