Kam Air also flies to Dubai with a 737. It seems that the planes flown are leased. You might be flying in a 737 from a Turkish chartered airline or Central Asian (Kazakhstan) airline.

Safi Airways is also another new airline serving the Dubai<->Kabul route. Safi also owns a 767, but they also use a 737 leased by a Jordanian chartered company.

You should not expect "Singapore Airlines" class service, but the experience is quite good as the flight attendants from these airlines know what they are doing and were very pleasant and polite.

You should be able to book tickets from Kam Air and Safi Airways on their website. The fares have increased as both airlines have added fuel surcharges.

PIA flies to Kabul from Islamabad twice a week. Sometimes, however, the flight is cancelled. There is a PIA flight from Toronto to Islamabad.

Do not, for whatever reasons, fly on either Ariana Afghan. Many NGOs and western countries have warned against traveling in these two airlines because of poor safety standards.