Cheapest flight Bangkok-London or Paris late April

Sounds like a very good price to me. The nearer your departure date the more expensive your tickets become.

WOW, that's cheap!!!!!
I was paying nearly 600 quid two years ago.

However, just google "cheap flights Bangkok-London". Loads of sites to check.

Price seems ok.
^ 600 quid one way ! You was robbed.

^^ Ah, I misread the OP. It was 600 return. Sorry.

450 USD is not cheap one way .Try Airasia X .

I always use http://www.saveflights.com/

Use the Messenger-Chat function and tell the staff what airline you want and they'll get back to you.

I recently had an Etihad Bangkok-Heathrow RETURN (via a short 2 hour stop in Abu Dhabi) for 30,000 baht.

You can get the cheapest flights to Bangkok by contact the travel agencies or you can visit the travel sites.

You can get the cheapest flights to Bangkok by contact the travel agencies or you can visit the travel sites. <<

He is going from Bangkok .!!!As i said check out AirasiaX ,and you could also try www.skyscanner.com

Air Asia X is no good for him. Last flights to London and Paris on Mar 30 and 31 respectively.