Question : Have you considered flying out of an airport besides Boryspil International Airport (KBP)?
Answer : Luckily for you, there is another airport nearby. Kyiv International Airport (IEV) is 20 miles away, and over the upcoming months, flights are 26% cheaper than those from Boryspil International Airport.
Question : How often are prices changing for this route?
Answer : Prices for this trip tend to change a lot more than others. The further out you book a route, the more likely you are to save.
Question : Best case scenario, how quickly can someone get to BKK from KBP?
Answer : The fastest direct flight is 9 hours and 30 minutes via UIA. If you catch the 7:25 PM EET departure, you'll arrive at 9:55 AM ICT (remember, there is a five-hour time change).
Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at February 5th. As of January 16th, the cheapest ticket sales are coming in 18% below the average price for this route, so you can spend that extra cash on a fun experience in Bangkok.