Platform: iOS, Android; Free

Sometimes a road trip isn't the best, or easiest, way to go. When it isn't, it's time to hop on a flight. Kayak is clean and simple flight app that is an extension of the website ( Just scroll through, pick out dates, times, locations, and boom--there you have it, all the flights available are at your disposal. You can also look up hotel and car rental deals, book a hotel, and the all important baggage fees, straight from the app.