Amsterdam AMS

United/Delta/Icelandair $401-$522 Denver to Paris, Amsterdam, Brussels, Frankfurt Jan-May

Star Alliance or Icelandair $380-$576 Chicago to France, Germany, UK, Benelux, Scandinavia Jan 10-May10, Greece/Eastern Europe Oct-May

Delta/SkyTeam $472-$506 Chicago ORD to 6 airports in France Jan 11-May 10

United Newark EWR to Amsterdam $439, Brussels $443, Munich $490 Jan 11-March 31

Star Alliance JFK to Amsterdam $440, Brussels $443 Jan 11-Mar 31

Denver to AMS, BRU, FRA and Paris $392-$529 AA/DL/FI/UA Jan-Mar 31

a screenshot of a travel information

All alliances $439-$507 Chicago to Amsterdam, Brussels, Paris and Frankfurt Dec-Mar

AA/DL/UA major winter fare sale New York JFK to Europe 12 cities Jan 11-March 31

AA/DL/UA $456-$563 Chicago to 9 cities in Europe Nov-March deals

United $392-$439 Newark to Amsterdam nonstop Nov-Mar

BoardingArea