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Cheap flights from Boston to Porto

BOS — OPO
20 Sep — 27 Sep1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Boston to Porto

Popular in

July

Cheapest in

February

Average price

C$ 1,068
Highest demand for flights based on searches. 22% potential increase in price (C$ 375 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 47 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Best time to book a flight from Boston to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boston to Porto

How far ahead should I book a flight from Boston to Porto?

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Porto?

Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of C$ 560). Flying from Boston to Porto in July is currently the most expensive (average of C$ 1,278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to OPO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Porto as you normally would.

Related info for your journey

  • How popular is this Boston to Porto flight route?

    Within the past month, 2 users have taken a look at flights from Boston Logan Intl to Porto.

  • Can I find deals for flights from Boston to Porto that include hotel bookings?

    Yes. In addition to deals on Boston to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Porto.

  • Can I find deals for business class flights from Boston to Porto?

    Yes. Cheapflights offers flight deals from Boston to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Porto?

    Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of C$ 560). Flying from Boston to Porto in July is currently the most expensive (average of C$ 1,278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Boston to Porto

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How does Cheapflights help users find flights from Boston to Porto?

Deals for Boston to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Boston to Porto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Porto.

Can Cheapflights find flights from Boston to Porto with no change fees?

Need flexible booking options for your flight to Porto from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Porto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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