Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bangkok Intl to Kabul as you normally would.
Yes, there are multiple flights from Bangkok Intl to Kabul for under ฿ 38,936. The cheapest flight booked recently is on Emirates for just ฿ 38,726, but on average you can expect to pay ฿ 45,345.
There are no direct flights from Bangkok Intl to Kabul, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Bangkok Intl will have the same amount of rainfall in 1 compared to Kabul over the next 3 days.
There are many flights that can get you from Bangkok Intl to Kabul in 14h 45m. Fly via Emirates or Turkish Airlines to get the fastest option. Both multi-stop and direct flights can be found to your destination and back.
Flying on Emirates is currently your cheapest option to Kabul, with prices starting at ฿ 38,727. Another option worth looking into is Turkish Airlines, starting at ฿ 80,567 return.