To save up to 26% on this flight, we recommend booking at least 42 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland, Maine to Barcelona from $493 1-2 weeks out and tickets from $522 for flights departing within the next 72 hours.
Flights from Portland, Maine to Barcelona lean towards being more expensive in July. Prices are generally better when you fly from Portland, Maine to Barcelona in March, with the cheapest ticket starting at $191.
When flying from Portland, Maine to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.