Not only that, but sometimes it is only Ryanair / Wizzair / etc. that fly in a reasonable time of day, and not too early / too late. Last time we traveled to Porto, it was the ONLY choice that was arriving / departing at a time that was not midnight or 6 AM. It was even cheaper than the rest. Oh, and it was pretty much the only direct flight from Vienna... So we bought all the priority / luggage / optional extras we could, and the price was on pair with the rest. No delays, no problems, no complaints.