Cheapest return flights from Boston (BOS) to Barcelona (BCN)

Cheapest month: March 2027, from $ 558. Book in one tap, or open a month for every date.

All destinations from Boston (BOS)

One-wayReturn

  • October 2026

    13–30 Oct 17 nights
    $ 562 return
    Iberia
    Price seen 9 Oct
    October dates

  • March 2027

    29 Mar – 4 Apr 2027 6 nights
    $ 558 return Cheapest month
    Iberia
    Price seen 8 Oct
    March dates

  • August 2027

    22 Aug – 9 Sep 2027 18 nights
    $ 560 return
    Condor
    Price seen 9 Oct
    August dates
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Updated Oct 9, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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