Looking on the internet deeply has found these results:

I am open to new opportunities. is the most popular phrase on the web.

I am open for new opportunities. 16,450 results on the web	I am open to new opportunities. 1116,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
We now have a different Commission, though, and that opens up new opportunities. European Union summit in Siberia may open up new opportunities. The treaty opens up new opportunities. Making cuts hurts, but it also opens up new opportunities. that is, business to consumer and business to business The Internet is something which opens up many new opportunities. We have learned that in 'customer to customer' services in particular Ladies and gentlemen, the forthcoming Russia	We now have a different Commission, though, and that opens up new opportunities. We have learned that in 'customer to customer' services in particular Making cuts hurts, but it also opens up new opportunities. The Internet is something which opens up many new opportunities. Ladies and gentlemen, the forthcoming Russia European Union summit in Siberia may open up new opportunities. The treaty opens up new opportunities. that is, business to consumer and business to business

I am open for new opportunities.

16,450 results on the web

I am open to new opportunities.

1116,000 results on the web

More popular!

We now have a different Commission, though, and that opens up new opportunities.
European Union summit in Siberia may open up new opportunities.
The treaty opens up new opportunities.
Making cuts hurts, but it also opens up new opportunities.
that is, business to consumer and business to business
The Internet is something which opens up many new opportunities.
We have learned that in 'customer to customer' services in particular
Ladies and gentlemen, the forthcoming Russia

We now have a different Commission, though, and that opens up new opportunities.
We have learned that in 'customer to customer' services in particular
Making cuts hurts, but it also opens up new opportunities.
The Internet is something which opens up many new opportunities.
Ladies and gentlemen, the forthcoming Russia
European Union summit in Siberia may open up new opportunities.
The treaty opens up new opportunities.
that is, business to consumer and business to business