I just tested it myself and can't confirm it. I started by searching for a flight for one person and got a few offers which said "3/4 seats left" and if you hov

I just tested it myself and can't confirm it. I started by searching for a flight for one person and got a few offers which said "3/4 seats left" and if you hover over the image you'll get the alt text "x seats left for that price". It actually looks like a neat feature which shows you how many seats are left in the cheapest fare group that applies to your settings. EDIT: I just did some more testing, searching for different person counts, and it does exactly what I thought. When you get "3 seats left" then you can book for 3 persons for the cheapest price, and whenever you add a 4th person, the price is higher than four times the 1-person price