Barcelona BCN Boston BOS Madrid MAD Porto OPO Portugal Portugal Spain

Boston to Spain and Portugal $390-$430 all alliances May, August

Big sale from Boston to many cities across Spain and Portugal with all three alliances. SkyTeam member Air Europe has lowest fares, with nonstop flights to Madrid. Oneworld and Star Alliance have lowest fares to some cities.

Lowest fares in the $390s and low $400s are for travel in May and from mid-August to February 2018.

Air Europa even has Porto and Lisbon under $600 round trip for July travel.

More than a dozen cities across Spain have low fares, along with Lisbon, Porto and Azores island airports of Portugal.

Momondo.com search

Air Europa  Boston BOS – Madrid MAD – Boston BOS

$393.13 round trip  Wed Aug 23 – Wed Aug 30

BOS-MAD $393 ota Aug23-30

Iberia Airlines Boston BOS – Madrid MAD – Palma Mallorca PMI – MAD – BOS

$421.00  Sun May 7 – Fri May 19

BOS-PMI $421 IB May9-19

Lufthansa ticket for Swiss Airlines operated flights

Boston BOS – Zurich ZRH – Madrid MAD – Zurich ZRH – Boston BOS

$431.53 round trip  Tue Aug 29 – Fri Sep 8

BOS-BCN $432 LX Aug29-Sep8

Loyalty Traveler Airfare Deals.

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