If the free time, I can pick you up

If the free time, I can pick you up at the airport.

Results (Chinese) 1:

如果空闲时间，我可以接你到机场。

Results (Chinese) 2:

如果空闲时间，我可以在机场接你。

Results (Chinese) 3:

如果有空的话，我可以去机场接你。