At least in Europe, Skyscanner has more airlines than Google Flights, which makes the latter kinda useless if it misses the cheapest/shortest flight. That said,

At least in Europe, Skyscanner has more airlines than Google Flights, which makes the latter kinda useless if it misses the cheapest/shortest flight. That said, at least GF lists Rynanair & Wizzair now, but through Kiwi.com OTA which I'd rather avoid (direct is cheaper and less issues with changes).