Another one of a spate of fake US Airways emails, with a link leading to malware:
From: US Airways - Reservations firstname.lastname@example.org
Date: 4 April 2012 14:58
Subject: US Airways online check-in.
You should check in from 24 hours and up to 60 minutes before your flight (2 hours if you're flying abroad). After that, all you have to do is print your boarding pass and go to the gate.
Confirmation code: 266492
Check-in online: Online reservation details
Departure city and time
Washington, DC (DCA) 10:00PM
Depart date: 4/5/2012
US Airways, 111 W. Rio Salado Pkwy, Tempe, AZ 85281 , Copyright US Airways , All rights reserved.
The malicious payload is on 18.104.22.168 (report here) hosted by Directspace in the US. Avoid.