Such kind of links work great in articles devoted to airports, cities and hotels and in any kind of content, when you advise your visitors how to get from the specific point to any other.
IMPORTANT! After you've got the link, you should add your partner ID to the end of it! You can find the ID in the
affiliate panel (RUB profile),
affiliate panel (EUR profile).
The link with the ID will look like: https://kiwitaxi.com/en/spain/barcelona+airport?pap=59942b21df77e