Direct to merchant (search engine, our display URL and your affiliate link as the destination URL) is fine with alpharooms for hotels, flights, holidays, transfers, and anything else we sell
what you can pre set on a merchant site with your link is merchant specific. Ask them, and you'll find out. We've got links for flight thats will start a search (and are converting rather well!) you jsut need to fill in parts of the link such as to and from airport codes, dates etc.
Data - ask around. At the moment our flight data is limited, affiliates doing well are ones that have build up their own. Every airport has an official site, and that site will contain which airlines fly from that airport, and where to. Lot of airports - yes, lot of work - yes, worth it - oooh yes
