Especially if you do not mind to travel light you may consider high-season flights from selected European cities to Bangkok, a major getaway to Thailand as well as to whole South East Asia! The deal is based on the service of Finnair (Oneworld) with one (usually short) layover in Helsinki on the way. Note that the airline no longer offers checked luggage in base fare. The cheapest high-season return flights from Europe to Thailand are available from €377.
Flying from: Prague, Oslo, Zurich, Vienna, Budapest, Zurich, Warsaw, Copenhagen, Brussels, Helsinki, main airports in Germany
Flying to: Bangkok
Travel period: September 2020 to March 2021 (excl. Christmas)
Book by: 31st of August 2020
Compare all the cheapest travel dates directly on the website of Finnair.
Consider Lufthansa/SWISS full-service and high-season deals:
Budapest – Bangkok from €425
Helsinki – Bangkok from €479 (Non-stop flight)
Booking sample of cheap high-season Finnair flights from selected European cities to Bangkok from €377! Outbound from Prague to Thailand on the 23rd of January. Inbound from South East Asia back to Europe on the 6th of February 2021.