$147 Cheap Flights from Boston (BOS) to Porto (OPO)

View $147 flight on Mon, Oct 13, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Porto Airport (OPO)

Cheap Flights from Boston to Porto (BOS-OPO)

Prices were available within the past 7 days and start at $147 for one-way flights and $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Sun, Mar 29 - Wed, Apr 15
BOS
Boston
OPO
Porto
$366 Roundtrip, found 3 days ago
$366
Roundtrip
found 3 days ago
Select TAP Portugal flight, departing Sun, Mar 29 from Boston to Porto, returning Wed, Apr 15, priced at $366 found 3 days ago
Iberia
Tue, Mar 24 - Tue, Mar 31
BOS
Boston
OPO
Porto
$372 Roundtrip, found 6 hours ago
$372
Roundtrip
found 6 hours ago
Select Iberia flight, departing Tue, Mar 24 from Boston to Porto, returning Tue, Mar 31, priced at $372 found 6 hours ago
United
Sun, Nov 16 - Thu, Nov 27
BOS
Boston
OPO
Porto
$374 Roundtrip, found 1 hour ago
$374
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Nov 16 from Boston to Porto, returning Thu, Nov 27, priced at $374 found 1 hour ago
British Airways
Mon, Jan 19 - Fri, Jan 30
BOS
Boston
OPO
Porto
$375 Roundtrip, found 1 day ago
$375
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Jan 19 from Boston to Porto, returning Fri, Jan 30, priced at $375 found 1 day ago
American Airlines
Mon, Jan 19 - Fri, Jan 30
BOS
Boston
OPO
Porto
$375 Roundtrip, found 1 day ago
$375
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 19 from Boston to Porto, returning Fri, Jan 30, priced at $375 found 1 day ago
Swiss International Air Lines
Sun, Nov 16 - Thu, Nov 27
BOS
Boston
OPO
Porto
$384 Roundtrip, found 1 hour ago
$384
Roundtrip
found 1 hour ago
Select Swiss International Air Lines flight, departing Sun, Nov 16 from Boston to Porto, returning Thu, Nov 27, priced at $384 found 1 hour ago
Lufthansa
Mon, Oct 27 - Fri, Nov 7
BOS
Boston
OPO
Porto
$390 Roundtrip, found 2 days ago
$390
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Mon, Oct 27 from Boston to Porto, returning Fri, Nov 7, priced at $390 found 2 days ago
Delta
Sun, Nov 16 - Thu, Nov 27
BOS
Boston
OPO
Porto
$395 Roundtrip, found 1 hour ago
$395
Roundtrip
found 1 hour ago
Select Delta flight, departing Sun, Nov 16 from Boston to Porto, returning Thu, Nov 27, priced at $395 found 1 hour ago
Air Canada
Mon, Aug 10 - Thu, Aug 20
BOS
Boston
OPO
Porto
$410 Roundtrip, found 1 hour ago
$410
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Mon, Aug 10 from Boston to Porto, returning Thu, Aug 20, priced at $410 found 1 hour ago
TAP Portugal
Wed, Apr 1 - Wed, Apr 8
BOS
Boston
OPO
Porto
$414 Roundtrip, just found
$414
Roundtrip
just found
Select TAP Portugal flight, departing Wed, Apr 1 from Boston to Porto, returning Wed, Apr 8, priced at $414 just found

Find the cheapest month to fly from Boston (BOS) to Porto (OPO)

November is typically the cheapest month to fly

From $350 - $732 per traveler.

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $657
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $657

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Snag a cheap one-way flight from $147 or cheap return flight from $366 from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
March is the most affordable month to fly from BOS to OPO. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from BOS to OPO. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
There aren't any daily direct flights from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from BOS to OPO?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To avoid potential delays on the Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Booking your ticket from BOS to OPO shortly before your journey is generally more expensive. But if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a BOS to OPO flight and hotel package?
You'll typically save money by securing a BOS to OPO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
In most cases, you can modify or cancel your BOS to OPO flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Logan Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, Air Europa, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, ITA Airways, Iberia, KLM, Lufthansa, Royal Air Maroc, SATA International-Azores Airlines S.A., Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$365
Distance
3137 mi
Average flight time
6 hours 40 mins

Book with confidence

Book with confidence

Boston to Porto Flights

The cheapest times to fly from Boston to Porto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Porto are during the month of March. You can find some of the cheapest flights from Boston to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Porto

Sunday is one of the best days to book for cheap flights from Boston to Porto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Porto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $147 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Porto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Porto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to Porto Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.