American Airlines

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

AA/DL/UA Los Angeles to London $546-$556 Dec to May 11, even Xmas dates

Air Canada $477, DL $492, LH $542 Philadelphia to Barcelona or Madrid Dec-May

AA and UA $499 Philadelphia to Rome Nov-May

Summer 2017 SFO to Paris $739 AA/BA; Oakland to London $1,149 premium economy

Fare Alert Summer 2017 AA/BA $520 New York–London June-August all dates

AA $53 New York LGA–Miami, AA/DL $68 one way New York JFK–Miami Nov-Feb

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

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More BA summer 2017 fare deals $463-$581 Boston, Fort Lauderdale and LAX to London and Paris

Fare Alert British Airways nonstop LAX-LHR London $555 economy, $964 Premium Economy all summer 2017

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