We’re flying back to the UK in July, and were looking for a cheap ticket (of course). From Minneapolis the cheapest option was to fly to Chicago, then Dublin, then either Manchester or Birmingham. We decided that on the way we’d stop in New York for a week to see family, and while investigating possible flights discovered that the two separate journeys either worked out cheaper than booking the entire trip in one go, or were about the same price but required only one stop (the one we wanted!)
This got me thinking that if you’re flying from a big hub city (not a notional one like Minneapolis), and particularly from the biggest cities like New York, it’s worth spending a few minutes to investigate similar options. Many cities will have airlines offering cheap flights to and from NYC, and there are similar good deals from New York to many European destinations. In theory the price optimization the airlines use should catch and match such options, but in practice they’re not able to compete against all airlines on all routes, and often don’t even want to – there are sufficient buyers out there who just book the straight ticket to put much effort into catching the wily or blundering 1% like me (and now you).