Delta offers a low fare from Los Angeles LAX and San Francisco SFO to Barcelona, Spain fro departures next week through March 17, 2017. This low fare is offered nearly every day, except for a few days in late December. Even Christmas fares are in low $700s.
This could be a one-off route sale by Delta since no other cities in Spain are discounted, or perhaps the beginning of a fare war brewing with American over Spain routes.
Delta Airlines San Francisco SFO – Atlanta ATL – Barcelona BCN – New York JFK – San Francisco SFO
$671.96 round trip Sat Aug 20 – Wed Aug 31 (Also can be ticketed as KLM or Air France)
Delta Airlines San Francisco SFO – Paris CDG – Barcelona BCN – Amsterdam AMS – San Francisco SFO
Delta Airlines Los Angeles LAX New York JFK – Barcelona BCN – JFK – LAX
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