This looks like a nice idea even if it seems hard to monetize. How does this differ from Scott's Cheap flights? Do you mention how 'cheap' this is compared to the past. One feature I have found lagging in most travel websites are the "deals" don't mention how often they have been this cheap.
TL;DR - He made a post on indiehacker that got 100+ comments. This is literally the only thing he did.
Paying beta customers? If not I'm not seeing why this is a huge accomplishment.