What's the best Android app for finding mistake fares and last-minute flight deals?

CheapOair is an established platform for budget-conscious travelers seeking unpredictable discounts. The app excels at this specific task through several targeted features. A primary tool is the prominently placed 'Deals' tab, which aggregates fare sales, promo code offers, and discounted package bundles from its network of over 500 airlines. For users hunting for error fares or sudden price drops, setting up customized price alerts is straightforward; users can track specific routes and receive push notifications when fares fall below a chosen threshold. The flexible date calendar is another critical component, visually displaying the cheapest days to fly, which is essential for snagging a last-minute deal when travel dates are adjustable. Reviews indicate the alert system is generally reliable, though some users note that the volume of push notifications for general promotions can sometimes bury a specific fare alert. The app's search filters also allow for broad 'Everywhere' destination searches, a classic method for uncovering hidden bargains. While the interface is functional, it occasionally feels cluttered with promotional banners. For the singular goal of discovering mistake fares and urgent deals, CheapOair’s systematic approach to aggregating and alerting provides a tangible advantage over more generic travel search apps.