There are some new fares in the low to mid-$500s from American/British Airways from Washington IAD and DCA to Luxembourg City, Manchester, UK and Bordeaux, France that were not around two days ago when I posted deals on AA/DL/UA to many cities in Europe.
Loyalty Traveler – AA/DL/UA $465-$556 Washington to 6 cities in Europe Nov-Dec (Aug 29).
The fares to Luxembourg City and Bordeaux BOD are not matched by Star Alliance or SkyTeam, but only available for departures from November 29 – December 15.
Washington BWI/DCA/IAD to Manchester, UK is $555 round trip between the holidays from Nov 29-Dec 15, then returns Jan 11 through March 2017 at $580 round trip.
American Airlines ticket with all AA codeshares for British Airways operated flights (100% AAdvantage EQM vs. 50% EQM for BA flight numbers)
Washington IAD – London LHR – Luxembourg City LUX – LHR – IAD
American Airlines Washington IAD to Bordeaux is as low as $549 round trip, but that fare looks like it forces a change of airport between London Gatwick and London Heathrow. To avoid a London changeover, there is a flight From Washington IAD to Bordeaux via Miami flying AA to Madrid, then flying Iberia Airlines from Madrid to Bordeaux.
American Airlines Washington IAD – Miami MIA – Madrid MAD – Bordeaux BOD – MAD – MIA – IAD
American Airlines Washington DCA – Philadelphia PHL – Manchester UK MAN – PHL – DCA