Wondering where you can and can’t get to from Washington’s closest airport these days? Well, we can tell you that there’s lots of change afoot at Reagan National.

To gain Justice Department approval for their merger, American Airlines and US Airways relinquished 52 “slot pairs” — one takeoff and one landing or, as we normally call it, a round trip — at the airport. As a result, the combined airline will no longer offer year-round daily nonstop flights from National to 17 destinations. Smaller markets were the predominant victims of the cuts, and, unfortunately for travelers, no other airlines offer nonstop service from National to those less-trafficked airports. Connecting will still be an option. There are, however, nonstops to a few of these destinations out of Washington Dulles and BWI Marshall airports.

The largest beneficiaries of the divestiture were JetBlue and Southwest, which both acquired some of the abandoned slots and are adding new and more frequent flights from National to their route maps. Virgin America also picked up several additional slots. The new routes offered by the three airlines don’t go to any destination that hadn’t already been accessible from National by nonstop flight, although they do introduce options to alternative airports in Chicago, Houston and Dallas.

To help you understand all the changes, which are being introduced gradually, we’ve compiled the eliminated and added routes as they currently stand. (Southwest and JetBlue have yet to announce all their plans for their acquired slots.)

CHART: See the changes in routes