Comment by RSZC

The savings can be a lot more than 20% - last month I had a roundtrip ticket of $2000 brought down to $1300 (and got there faster!) via the switching airlines approach. It did come with some additional stress - needed additional visas and was worried about missing flights.

If things go wrong with Kiwi, they're likely to go very wrong, yes...but on the other hand, if I can keep saving $700 per trip, I can afford for them to go very wrong sometimes and still come out ahead.