Yes, there are multiple flights from Bangkok to Laoag for under ฿15,738. The cheapest flight booked recently is on Philippine Airlines for just ฿14,290, but on average you can expect to pay ฿14,290.
There are no direct flights from Bangkok to Laoag, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
There are many flights that can get you from Bangkok to Laoag in 23h. Fly via Philippine Airlines to get the fastest option.
Flying on Philippine Airlines is currently your cheapest option to Laoag, with prices starting at ฿14,291.