Star Alliance

Fare Alert $356-$528 United/Delta Boston to Hamburg Sep 3–Oct 29

KLM/Swiss $570 Chicago to Athens; $702 Santorini August departures; United $597 Xmas fares

LOT Chicago to Paris $508 and 8 more cities in Europe $494-$608 Sep-Mar 2017

a screenshot of a computer

Fare War AA/DL/UA $359 to $491 from 11 European countries to California round trip

Star Alliance/Oneworld Milan/Rome to USA $400 Sep-March 2017

United $588 Washington IAD–Paris CDG nonstop Oct-Dec

a screenshot of a website

Star and SkyTeam $431 Chicago to Stockholm Aug, $465-$485 Sep-Oct

LOT $480-$500 New York JFK to Paris, $530 Geneva Sep-Dec

a screenshot of a flight information

Adventuresome? AA/UA $865 New York-Sweden-Maui-Sweden-New York

a screenshot of a flight information

American JFK-Milan $519 Aug-May, $723 July; DUB $558, Star Alliance matches