Currently there are no direct flights Copenhagen to Thailand.

Flights Copenhagen to Thailand with 1 stopover:

Flights via  Dubai (DXB), UAE
From Copenhagen (CPH), Denmark with Emirates Transfer at Dubai (DXB), UAE Then on to Bangkok Suvarnabhumi (BKK), Thailand with Emirates
Flights via Singapore Changi (SIN), Singapore
From Copenhagen (CPH), Denmark with Singapore Airlines
OR
From Copenhagen (CPH), Denmark with SAS
Transfer at Singapore Changi (SIN), Singapore Then on to Bangkok Suvarnabhumi (BKK), Thailand with Singapore Airlines
OR
Then on to Bangkok Suvarnabhumi (BKK), Thailand with SAS
OR
Then on to Chiang Mai (CNX), Thailand with Singapore Airlines
OR
Then on to  Koh Samui / Samui Island (USM), Thailand with Singapore Airlines
OR
Then on to  Phuket (HKT), Thailand with Singapore Airlines
Flights via  Doha (DOH), Qatar
From Copenhagen (CPH), Denmark with Qatar Airways Transfer at  Doha (DOH), Qatar Then on to Bangkok Suvarnabhumi (BKK), Thailand with Qatar Airways
OR
Then on to  Phuket (HKT), Thiland with Qatar Airways
Flights via Istanbul Ataturk (IST), Turkey
From Copenhagen (CPH), Denmark with Turkish Airlines Transfer at Istanbul Ataturk (IST), Turkey Then on to Bangkok Suvarnabhumi (BKK), Thailand with Turkish Airlines
Flights via Moscow Sheremetyevo (SVO), Russia
From Copenhagen (CPH), Denmark with Aeroflot Transfer at Moscow Sheremetyevo (SVO), Russia Then on to Bangkok Suvarnabhumi (BKK), Thailand with Aeroflot
OR
Then on to Phuket (HKT), Thailand with Aeroflot
Flights via  Amsterdam (AMS), Netherlands
From Copenhagen (CPH), Denmark with KLM Transfer at  Amsterdam (AMS), Netherlands Then on to Bangkok Suvarnabhumi (BKK), Thailand with KLM
Flights via Vienna (VIE), Austria
From Copenhagen (CPH), Denmark with Austrian Airlines Transfer at Vienna (VIE), Austria Then on to Bangkok Suvarnabhumi (BKK). Thailand with Austrian Airlines
Flights via Beijing Capital (PEK), China
From Copenhagen (CPH), Denmark with Air China Transfer at Beijing Capital (PEK), China Then on to Bangkok Suvarnabhumi (BKK), Thailand with Air China
Flights via  London Heathrow (LHR), United Kingdom
From Copenhagen (CPH), Denmark with British Airways
OR
From Copenhagen (CPH), Denmark with Qantas
Transfer at London Heathrow (LHR), United Kingdom Then on to  Bangkok Suvarnabhumi (BKK), Thailand with British Airways
OR
Then on to  Bangkok Suvarnabhumi (BKK), Thailand with Qantas
Flights via Zurich (ZRH), Switzerland
From Copenhagen (CPH), Denmark with Swiss Transfer at Zurich (ZRH), Switzerland Then on to Bangkok Suvarnabhumi (BKK), Thailand with Swiss
OR
Then on to Phuket (HKT), Thailand with Swiss
Flights via  Munich (MUC), Germany
From Copenhagen (CPH), Denmark with Lufthansa Transfer at  Munich (MUC), Germany Then on to Bangkok Suvarnabhumi (BKK), Thailand with Lufthansa
Flights via  Bahrain (BAH), Bahrain
From Copenhagen (CPH), Denmark with Gulf Air Transfer at Bahrain (BAH), Bahrain Then on to Bangkok Suvarnabhumi (BKK), Thailand with Gulf Air
Flights via Cairo (CAI), Egypt
From Copenhagen (CPH), Denmark with EgyptAir Transfer at Cairo (CAI), Egypt Then on to Bangkok Suvarnabhumi (BKK), Thailand with EgyptAir
Flights via Paris Charles de Gaulle (CDG), France
From Copenhagen (CPH), Denmark with Air France Transfer at Paris Charles de Gaulle (CDG), Thailand Then on to Bangkok Suvarnabhumi, Thailand with Air France
Flights via Amsterdam (AMS), Netherlands
From Copenhagen (CPH), Denmark with KLM Transfer at  Amsterdam (AMS), Netherlands Then on to Bangkok Suvarnabhumi, Thailand with KLM
Flights via Helsinki Vantaa (HEL), Finland
From Copenhagen (CPH), Denmark with Finnair Transfer at Helsinki Vantaa (HEL), Finland Then on to Bangkok Suvarnabhumi, Thailand with Finnair
Flights via  Frankfurt am Main (FRA), Germany
From Copenhagen (CPH), Denmark with Lufthansa Transfer at  Frankfurt am Main (FRA), Germany Then on to Bangkok Suvarnabhumi, Thailand with Lufthansa
Flights via Oslo Gardermoen (OSL), Norway
From Copenhagen (CPH), Denmark with Thai Airways Transfer at  Oslo Gardermoen (OSL), Norway Then on to Bangkok Suvarnabhumi, Thailand with Thai Airways
Flights via Brussels International (BRU), Belgium
From Copenhagen (CPH), Denmark with Brussels Airlines Transfer at Brussels International (BRU), Belgium Then on to Bangkok Suvarnabhumi, Thailand with Brussels Airlines
Flights via Stockholm Arlanda (ARN), Sweden
From Copenhagen (CPH), Denmark with Thai Airways Transfer at Stockholm Arlanda (ARN), Sweden Then on to Bangkok Suvarnabhumi, Thailand with Thai Airways
Flights via  Kiev Borispol (KBP), Ukraine
From Copenhagen (CPH), Denmark with Aerosvit Airlines Transfer at Kiev Borispol (KBP), Ukraine Then on to Bangkok Suvarnabhumi, Thailand with Aerosvit Airlines
Flights via Phuket (HKT), Thailand
From Copenhagen (CPH), Denmark with Thai Airways Transfer at Phuket (HKT), Thailand Then on to Bangkok Suvarnabhumi, Thailand with Thai Airways
Flights via Bangkok Suvarnabhumi (BKK), Thailand
From Copenhagen (CPH), Denmark with SAS
OR
From Copenhagen (CPH), Denmark with Thai Airways
Transfer at Bangkok Suvarnabhumi (BKK), Thailand Then on to Chiang Mai (CNX), Thailand with SAS
OR
Then on to Phuket (HKT), Thailand with SAS
OR
Then on to Chiang Mai (CNX), Thailand with Thai Airways
OR
Then on to Chiang Rai (CEI), Thailand with Thai Airways
OR
Then on to  HHat Yai (Songkhla) (HDY), Thailand with Thai Airways
OR
Then on to  Khon Kaen (KKC), Thailand with Thai Airways
OR
Then on to Koh Samui / Samui Island (USM), Thailand with Thai Airways
OR
Then on to  Krabi (KBV), Thailand with Thai Airways
OR
Then on to  Phuket (HKT), Thailand with Thai Airways
OR
Then on to Surat Thani (URT), Thailand with Thai Airways
OR
Then on to Ubon Ratchathani (UBP), Thailand with Thai Airways
OR
Then on to  Udon Thani (UTH), Thailand with Thai Airways