This is awesome - always wanted something like this! Nice design and UX :)
A couple of small suggestions.
If I set my budget your app "fills" it leaving no room for food/in-country travel/etc. Maybe you could had a measure of how much people want to spend on such things - perhaps as a percentage but presented as fixed options (I eat out a lot, I visit attractions a lot)? Or make it more obvious somehow that this is the "bare cost" of getting to and staying somewhere.
Perhaps consider only rendering the first page or two of results - then load more in as I scroll. On my 2015 MBP it hangs a little when loading in all the tiles (in Firefox and Chrome).
Thanks for your suggestions! Since it is always questionable how much someone would spend (and very depending on the person itself) we didn't take into account cost of living. My brother and I had a few discussions about this since I wanted to show 'the whole package', but he convinced me to keep just keep it simple and add additional 'cost of living' info later on, at the destination page. For now I still agree with, he has some good points. Although it differs from person to person what is preferred.
Loading in results on page scroll should be really neat. I think it will speed up loading time tremendously, definately going to look into that!
A couple of small suggestions.
If I set my budget your app "fills" it leaving no room for food/in-country travel/etc. Maybe you could had a measure of how much people want to spend on such things - perhaps as a percentage but presented as fixed options (I eat out a lot, I visit attractions a lot)? Or make it more obvious somehow that this is the "bare cost" of getting to and staying somewhere.
Perhaps consider only rendering the first page or two of results - then load more in as I scroll. On my 2015 MBP it hangs a little when loading in all the tiles (in Firefox and Chrome).