Delta Airlines
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Delta USA nationwide fare sale $293 NYC to Dublin, $367 LAX/SFO Sep-Mar, AA/DL $530 many other cities to Dublin

AA/DL/UA/FI New York–Stockholm $345-$395 Nov-Dec

AA/DL/UA/LOT $480-$542 New York to Paris, Amsterdam, Brussels Oct-Dec, even Xmas

AA/DL/UA/FI $636 Denver to Frankfurt, $670 Paris, $632 Manchester

AA $466 JFK-LGW, Icelandair $413 JFK–London LHR Oct-Dec, EWR-Paris $521

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Delta JFK-London $504, Paris $526, Amsterdam $532 Oct 15-Dec 15

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AA/DL July Fare War $648-$670 PHL/JFK to Brussels/Zurich

Philadelphia fare war AA/DL/UA Manchester $500, AMS $506, Munich $534, Paris $542, Zurich $542, London Xmas deals $700

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AA/DL/UA $466-$658 BOS/DEN/MSP/NYC/PHL/SEA/WAS to AMS/BHX/BRU/FRA/MAN/MUC/ZRH and more

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AA/DL/UA $588 LAX–Tokyo NRT/HND nonstop Aug-Nov