Cheap Flights from Boston to Porto starting at S$ 374

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Boston to Porto

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from Boston (BOS) to Porto (OPO) the cheapest?

Airlines adjust prices for flights from Boston to Porto based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Boston (BOS) to Porto (OPO) cost?

According to Trip.com's data, the lowest price is around S$ 1,212.
How long is a flight from Boston (BOS) to Porto (OPO)?

It takes about 9 hours 25 minutes to fly from Boston (BOS) to Porto (OPO).
What is the transportation method from the main airport to downtown in Porto?
- The distance from Francisco Sa Carneiro International Airport to downtown is about 9km, by taxi about 20 minutes.
What are the most popular airlines that fly from Boston (BOS) to Porto (OPO)?

Airlines with flights from Boston (BOS) to Porto (OPO): SATA International and Tap Portugal.
How many airports in Porto?

There are 1 airports near Porto: Francisco Sa Carneiro International Airport.

How to find a cheap flight from Boston to Porto

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Porto. Book your flights at the right time and save more.

Choose your dates flexibly and get the best deals on flights from Boston to Porto.

Tap 'Date' on the flight search bar to browse the calendar for Boston to Porto airfare over the next 6 months in 2025. If you're looking to fly within the next 3 months, the cheapest date seems to be Fri, Apr 4, with one-way flights starting at S$ 374.

Compare cheap flight deals from hundreds of airlines for Boston to Porto flights.

Our extensive search lets you compare prices from over 500 airlines to find the cheapest flights from Boston to Porto. The cheapest flight at the moment is with SATA International.

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Book early or wait for last-minute deals.

It's always better to book early. Flight tickets are often at their lowest when first released, usually a year ahead of departure. Keep an eye out as soon as your desired flights open for booking. If you miss the early deals, you may still find lower prices closer to your travel date.

Search for flights on the go.

For the best flight booking experience on the go, download Trip.com and search for cheap flights from Boston to Porto to get your exclusive deals.

Find cheapest flight ticket from Boston to Porto

Cheapest one-way flight price	S$ 374
Cheapest return ticket price	S$ 777
Off-season for travel	January
Peak season for travel	June
Flight distance	5,047.17km
Average flight time	9 hours 25 minutes
Popular airline	Delta Air Lines