Can I use lufthavn?
You should be able to now. 'Flyplass' is more common, however, so you should use that.
"The airports in the country" is a noun phrase? If so, then the verb "have" is still in second position (and so satisfying the V2 rule)?
Just a nonrelated question. I got offered "sykkel spisesteder". Is it the bicycle food cart or my imagination is too broad? :D