Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.US Airways recently acquired a bunch of new gates at Reagan National airport as part of the slot swap that gave Delta more space at LaGuardia. To celebrate, they are offering double miles (regular, not elite) for all flights to/from DCA. Details:Book July 7 – August 5, 2012Travel July 7 - September 30, 2012No registration requiredCustomers with itineraries connecting through Reagan National Airport (DCA) are not eligible for bonus miles.Any itinerary with a Reagan National Airport (DCA) arrival followed by a Reagan National Airport (DCA) departure the same day is considered a connection. (= No same day mileage running, though that wouldn’t make sense since these aren’t preferred miles)Miles do not count toward Preferred status.US Airways will award miles one to two weeks after travel has been completed.There’s also a “30 Days of DC” promotion that begins yesterday and the first deal should be announced at some point today. Not sure exactly what this will bring, but I’m assuming anyone can participate, so I’ll be highlighting any particularly good deals.[card card-name=‘The Platinum Card® from American Express’ card-id=‘22504813’ type=‘javascript’ bullet-id=‘1’]