LOT has Viasat Wi-Fi on its 787s. It is paid except in Business. It works throughout the flight.
Does LOT have Wi-Fi?
Yes, Viasat Wi-Fi
Paid except in Business
On its 787s
How good it is
When it works
Gate to gate
It works for all of the flight, gate to gate.
Where it works

Everywhere except near the poles, beyond about 65° north or south.
Sources
- LOT Polish Airlines begins equipping long-haul fleet with Viasat inflight connectivity,Future Travel Experience·
- ViaSat-1 at 115.1° west, FCC grant,TV Technology·
- ViaSat-2 at 69.9° west,Viasat·
- ViaSat-3 Americas at 88.9° west,Viasat·
- ViaSat-3 F2 at 79° west,Viasat·
- ViaSat-3 F3's position, 158.6° east, from its orbital elements,CelesTrak·
- Viasat airline service roams onto Inmarsat GX5 and GX6A,Runway Girl Network·
- Inmarsat GX5 at 11° east,Satbeams·
- Inmarsat GX6A at 83.8° east,Satbeams·