United Airlines

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

United/Delta/Icelandair $421-$569 Washington DC to London, Paris, Germany, Scandinavia, Greece

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

Star Alliance/SkyTeam Portland PDX to London $543-$603 April-May 2017

Star Alliance Seattle to Zurich $418 to $456 April-May 2017

Seattle to Brussels, Frankfurt, Manchester, Munich $475-$540 Jan-March

New York/Newark to Warsaw/Krakow $485-$509 Star Alliance/SkyTeam Oct 25-March 31

AA/DL/UA/FI Seattle to Munich or Frankfurt Christmas Fares $500 round trip

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LOT Polish/Star Alliance New York JFK and Chicago $503 to 8 cities in Poland Nov-May