The nationwide sale to Europe that we noticed on Friday is back again today. Delta and SkyTeam partners Air France and KLM have low fares in the $500s round-trip from nearly everywhere in the states to Belgium, Germany, Luxembourg, Switzerland, and Austria. American has matched from a few cities and brought the price down to the $400s.
UPDATE: 5:30 pm ET, February 5: It looks like Delta/Skyteam has slashed prices another $50 on all of these routes. Many Delta fares are now in the mid-$400s round-trip. If you haven't booked yet, this is about as low as it gets from Anytown, USA.
This is unadvertised and may not last very long. Book quickly if something catches your eye. Most third party booking sites have a 24-hour free cancellation policy so you'll have a day to figure out the details.
Travel is available on a wide range of dates, but generally through mid-May and from mid-August onward. We've even spotted a few dates that can get you to Munich for Oktoberfest! For the most part, a 28-day advance purchase and a 7-night minimum stay is required.
Most of these are main cabin fares, which means your first checked bag will be included as well. Click on the fare details for more booking information.
As this is pretty much nationwide, check flights from your city, within the travel dates listed above, to see what's available from your neck of the woods. Unfortunately, most Delta and American hub cities are excluded.
Generally, prices are in the mid-$500s round-trip from nearly everywhere in the USA to Brussels, Munich, Frankfurt, Berlin, Geneva, Luxembourg, Zurich, and Vienna. Even if your favorite airport (small or large) isn't listed, there may be a big price drop. Other cities in these countries are likely lower than normal as well.