If you are using Dohop.com's flight search engine, there are a few things you can keep in mind to optimize and get the most out of the results. By default the results are ordered by price, lowest first. You can rearrange this order, perhaps by departure time if you want to catch an early flight, or by total trip duration to minimize your stay in airplanes and airports.
Dohop's specialty is finding the best connections, ones that other flight searches won't show you. Our flight planner shows you the best connections, but again you can limit these by using the filters. You can eliminate ground travel, reduce the maximum number of stops and disallow overnight flights. You may be cutting out the cheapest flight by doing this, but instead you might find the one best suited to you. Direct flight are the most tempting, since you eliminate a lot of hassle, but they are often not the cheapest flight available. For the cheapest prices, look for low cost airlines, and especially connections with at least one low-cost airline.
And using Dohop.com's flight search saves you the time and hassle of searching for available flights on each of the airlines sites individually.