Booking with Finnair 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Brussels Bruxelles-National Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
For Economy class flights the cheapest month to fly the route is May. The most expensive months are December and January.
In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok Suvarnabhumi Airport when rainfall is around 10.0 mm.
If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).
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