The 20-year-old, who signed for the Cottagers in 2011, has made just three appearances for the London club this season.
Kasami, who competed for Switzerland in the London Olympic Games last summer, could make his debut for his new club next Sunday against St Gallen.
Luzern are currently ninth in the Swiss Super League.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Liverpool | 7 | 6 | 0 | 1 | 13 | 2 | 11 | 18 |
| 2 | Manchester CityMan City | 7 | 5 | 2 | 0 | 17 | 8 | 9 | 17 |
| 3 | Arsenal | 7 | 5 | 2 | 0 | 15 | 6 | 9 | 17 |
| 4 | Chelsea | 7 | 4 | 2 | 1 | 16 | 8 | 8 | 14 |
| 5 | Aston Villa | 7 | 4 | 2 | 1 | 12 | 9 | 3 | 14 |
| 6 | Brighton & Hove AlbionBrighton | 7 | 3 | 3 | 1 | 13 | 10 | 3 | 12 |
| 7 | Newcastle UnitedNewcastle | 7 | 3 | 3 | 1 | 8 | 7 | 1 | 12 |
| 8 | Fulham | 7 | 3 | 2 | 2 | 10 | 8 | 2 | 11 |
| 9 | Tottenham HotspurSpurs | 7 | 3 | 1 | 3 | 14 | 8 | 6 | 10 |
| 10 | Nottingham ForestNott'm Forest | 7 | 2 | 4 | 1 | 7 | 6 | 1 | 10 |
| 11 | Brentford | 7 | 3 | 1 | 3 | 13 | 13 | 0 | 10 |
| 12 | West Ham UnitedWest Ham | 7 | 2 | 2 | 3 | 10 | 11 | -1 | 8 |
| 13 | Bournemouth | 7 | 2 | 2 | 3 | 8 | 10 | -2 | 8 |
| 14 | Manchester UnitedMan Utd | 7 | 2 | 2 | 3 | 5 | 8 | -3 | 8 |
| 15 | Leicester CityLeicester | 7 | 1 | 3 | 3 | 9 | 12 | -3 | 6 |
| 16 | Everton | 7 | 1 | 2 | 4 | 7 | 15 | -8 | 5 |
| 17 | Ipswich TownIpswich | 7 | 0 | 4 | 3 | 6 | 14 | -8 | 4 |
| 18 | Crystal Palace | 7 | 0 | 3 | 4 | 5 | 10 | -5 | 3 |
| 19 | Southampton | 7 | 0 | 1 | 6 | 4 | 15 | -11 | 1 |
| 20 | Wolverhampton WanderersWolves | 7 | 0 | 1 | 6 | 9 | 21 | -12 | 1 |
| > Premier League Full Table | |||||||||
