For the past few minutes I have been playing city roulette searching flights to cities I’ve never been to.
After about 10 cities I got this message.
Its probably just the website/apps security features kicking in to prevent what it that’s may be an attempt at a DDOS attack.
It's also worth getting a VPN when booking travel to some countries, especially poorer ones. Sometime you get a cheaper rate.
They assume a single source doing a huge number of searches is a screenscraper.
On the return leg, the outbound or both?
Would the price of a good VPN of outweigh any potential saving on a single flight and only be useful for very regular fliers?