Amsterdam AMS

Delta-United $442 IAD to Amsterdam, British Airways $506 IAD to London

Star Alliance $380 round trip Amsterdam/Brussels/Lyon to ATL/EWR/JFK/LAS/MCO/MSP/ORD/

AA-DL-UA Denver Deals to Europe $444 Paris, Amsterdam, Brussels

Newark to Paris $470, Rome, Barcelona, Madrid $499 United-Star Alliance Jan-May

a screenshot of a flight schedule

Portland PDX to London United $555, Amsterdam UA $580, Delta $571 Dec-May

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AA/DL/UA Denver to Paris $448, Amsterdam $444, many cities $431-$544

American $456-$516 Seattle to Amsterdam, Paris, Munich, Frankfurt, Manchester Jan-April

United Newark to Italy and Spain $478-$500 Jan-May 2017

Oneworld $399-$514 Seattle to Europe 14 cities Jan-March 2017

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American $485-$503 Denver to Paris, Bordeaux, Toulouse Jan-May 2017; AMS $454; FRA $519

BoardingArea