At the top of your results, you’ll see a summary of the airlines that market flights on your route and their prices, broken out by the number of stops in the itinerary. Click the prices to filter your results to flights operated by that carrier with that number of stops, or click an airline or number of stops to limit by those criteria.
Above your results, click one of the column headers and then the link that's shown to sort flights by Price, Airline, Depart, Arrive, Duration, From/To, Stops, or Advisory. To sort in the other direction, click the column header again and click Reverse sort order. When you click a column header, you can also choose specific preferences to narrow down your results. For example, click the Depart column to select only flights leaving in the morning.
Try the Advisory column to filter out trip plans with sometimes undesirable features like airport changes, terminal changes, preferred cabin class unavailable, overnight flights, risky connections, short connections (less than 30 minutes for a domestic flight and less than 60 minutes for an international flight), and long layovers (longer than 120 minutes domestic or 240 minutes international).
= Short connection
= Risky connection
= Long layover
= Red-eye flight
= Other warning, such as preferred cabin class unavailable