Are there any budget airlines flying between London (Luton, Stansted
or Heathrow) and Zurich airport ?

Hello,

Thank-you for your question.

The easiest way to answer this question is to use the excellent
SkyScanner.net website.

"SkyScanner is a search engine that helps visitors find the cheapest
flight to anywhere within Europe. The site is built on the latest
technology supporting over 1.5 million queries a month, returning
results in a matter of seconds. The user interface is innovative and
simple to use.

Our website uses search engine technology to obtain ticket information
from airline websites. This provides visitors with a single place
where they can find flight prices for budget airlines."
http://www.skyscanner.net

When you enter the route you have requested, London to Zurich, you are
presented with two carriers - Helvetic and Air Berlin.  The price
varies depending on which day and at what time you wish to travel (use
the month view on the SkyScanner site to determine what time is best
to fly for the cheapest price).

Helvetic - http://www.helvetic.com/en/Default.aspx
Fly from Luton to Zurich
Single from ?19 (+ taxes)

Air Berlin - http://www.airberlin.com/site/index.php?LANG=eng
Fly from Stansted to Zurich
Single from £29 (+ taxes)

Other excellent places to look for cheap flights on major airlines include:
http://www.ebookers.com
http://www.opodo.co.uk
http://www.expedia.co.uk

I could find none of the usual UK budget airlines (for example RyanAir
or easyJet) who fly between London and Zurich.

I hope this fully answers your question but should you require any
further assistance please do not hesitate to ask.