While booking flights in Europe I frequently toggle through kayak.de, kayak.it, lastminute, and kayak.com. Doesn't require a VPN, it's just that Kayak works thr

While booking flights in Europe I frequently toggle through kayak.de, kayak.it, lastminute, and kayak.com. Doesn't require a VPN, it's just that Kayak works through partners and the partners are country specific. You can often get better deals on one site or another, depending on the partner selection. I haven't used it that much in North America recently, but it seems to be the same dynamic.