OPO - BOS

$333 Find Cheap Flights from Porto to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to Boston departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to Boston, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Porto to Boston (OPO-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Porto to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to Boston

Sun, Sep 21 - Sat, Sep 27
TAP AIR PORTUGAL Logo
5:45 pm - 8:25 pmOPO-BOS
7h 40mnonstop
TAP AIR PORTUGAL Logo
11:15 pm - 10:55 amBOS-OPO
6h 40mnonstop
$451TAP AIR PORTUGAL
Find Deal
Sun, Sep 21 - Sat, Sep 27
TAP AIR PORTUGAL Logo
5:45 pm - 8:25 pmOPO-BOS
7h 40mnonstop
TAP AIR PORTUGAL Logo
10:45 pm - 5:00 pmBOS-OPO
13h 15m1 stop
$468TAP AIR PORTUGAL
Find Deal
Sat, Jan 17 - Sat, Jan 24
 Logo
9:55 pm - 8:55 pmOPO-BOS
28h 00m1 stop
 Logo
10:40 pm - 8:10 amBOS-OPO
28h 30m1 stop
Sat, Sep 6 - Wed, Sep 10
 Logo
12:35 pm - 7:50 pmOPO-BOS
12h 15m1 stop
 Logo
3:15 pm - 9:20 amBOS-OPO
13h 05m1 stop
Fri, Oct 3 - Fri, Oct 10
Lufthansa Logo
6:00 am - 4:00 pmOPO-BOS
15h 00m1 stop
Lufthansa Logo
8:05 pm - 11:20 pmBOS-OPO
22h 15m1 stop
$573Lufthansa
Find Deal
Tue, Nov 18 - Thu, Jan 15
Lufthansa Logo
6:00 am - 1:25 pmOPO-BOS
12h 25m1 stop
Lufthansa Logo
2:16 pm - 11:40 amBOS-OPO
16h 24m2 stops
$594Lufthansa
Find Deal
Mon, Nov 24 - Sun, Jan 11
United Airlines Logo
6:00 am - 1:25 pmOPO-BOS
12h 25m1 stop
United Airlines Logo
4:20 pm - 11:40 amBOS-OPO
14h 20m1 stop
$595United Airlines
Find Deal
Sun, Nov 16 - Thu, Jan 15
United Airlines Logo
6:00 am - 1:25 pmOPO-BOS
12h 25m1 stop
United Airlines Logo
4:15 pm - 11:40 amBOS-OPO
14h 25m1 stop
$596United Airlines
Find Deal
Mon, Nov 24 - Fri, Jan 16
Air Canada Logo
6:00 am - 10:37 pmOPO-BOS
21h 37m2 stops
Air Canada Logo
5:30 am - 11:10 amBOS-OPO
24h 40m2 stops
$597Air Canada
Find Deal
Sun, Nov 16 - Sat, Jan 17
Air Canada Logo
6:00 am - 6:02 pmOPO-BOS
41h 02m2 stops
Air Canada Logo
10:15 am - 6:35 pmBOS-OPO
27h 20m2 stops
$598Air Canada
Find Deal
Expert advice

Expert advice for your flight from Porto to Boston

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
TAP AIR PORTUGAL

TAP's A330neo offers superior comfort with a 2-4-2 layout for private window seats.


Business class features Portuguese cuisine with menus by renowned chefs and custom tableware.

Azores Airlines

Enjoy complimentary meals and drinks on transatlantic flights over 3 hours, including wine and beer.


Stream entertainment to your device for free; Wi-Fi is available for a fee.

Our travel experts
Duncan Madden

Duncan Madden

Expert on TAP AIR PORTUGAL

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on Azores Airlines

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Booking Insights

KAYAK's insights & trends for Porto to Boston flights

Get data-powered insights and trends into flights from Porto to Boston to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Porto to Boston?

The average price of all round-trip flights from Porto to Boston clicked on KAYAK for each day over the last 12 months.

When flying from Porto to Boston, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Porto, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Porto to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Porto to Boston is February, where tickets cost $537 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $879 and $795 respectively.

Can I save money by flying with a layover from Porto to Boston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $655 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Porto to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Porto to Boston, you should book around 7 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$333
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Porto to Boston

When to book flights from Porto to Boston

Are your dates flexible? Find out the best times to travel from Porto to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Porto to Boston

  • What is the cheapest flight from Porto to Boston?

    In the last 3 days, the lowest price for a flight from Porto to Boston was $333 for a one-way ticket and $451 for a round-trip.

  • Do I need a passport to fly between Porto and Boston?

    Yes

  • Which airports will I be using when flying from Porto to Boston?

    Porto and Boston are both served by 1 main airport. You will leave Porto from Porto and will be arriving at Boston Logan Intl.

  • Which aircraft models fly most regularly from Porto to Boston?

    The Airbus A321neo is the aircraft model that flies most regularly on the Porto to Boston flight route.

  • Which airline alliances offer flights from Porto to Boston?

    Star Alliance is the only airline alliance operating flights between Porto and Boston.

  • On which days can I fly direct from Porto to Boston?

    You can catch a nonstop flight from Porto to Boston on on Monday, Wednesday, Saturday, and Sunday.

  • Which is the best airline for flights from Porto to Boston, KLM or Azores Airlines?

    The two airlines most popular with KAYAK users for flights from Porto to Boston are KLM and Azores Airlines. With an average price for the route of $595 and an overall rating of 7.8, KLM is the most popular choice. Azores Airlines is also a great choice for the route, with an average price of $557 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Porto to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Porto is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Porto with another airline. Booking your flights between Porto and BOS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Porto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Porto to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $426 or less one-way.

Prefer to fly direct from Porto to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Porto to Boston Logan Intl.
Find which airlines fly direct from Porto Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Porto to Boston Logan Intl

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Direct returns

Boston Logan Intl to Porto

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Reviews of the top 4 airlines serving from Porto to Boston

 
See real verified KAYAK customer reviews for airlines flying from Porto to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1388 reviews
7.8Boarding
8.4Crew
7.1Entertainment
7.3Food
7.7Comfort
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You cannot add an additional luggage via the check in. It seems to be an issue with Azore Airline.

The facilities at PDL are absolutely appalling during a 4.5-hour connection. Passengers from multiple flights were crammed into a small area with insufficient seating and only a snack bar. The only bathroom was unisex, with one stall for men and another for women side by side. This is for hundreds of passengers. The connecting aircraft from PDL to JFK was downgraded/switched out to an Economy Class-only configuration without explanation, even though the aircraft with Comfort Class we arrived from FNC on remained at the stand. Those who paid for Comfort Class could not enjoy the better seating or catering. Food and drink aboard was sub-par. I would qualify it as one of our worst travel experiences in years.

The crew was great. The only problem is that electrical outlets were not working in what seems to be a half of the rows on the plane. Considering that passengers are asked not to use power banks, this leaves us out in the blue without any entertainment option.

Reasonably comfortable. We were about an half an hour late. But no personal impact. Seats upfront have a good amount of recline, but do not lay down flat. Food and drink can be improved. There are no soft drinks available on the flights. Water, juices, and wines are provisioned.

Flight on time. Staff pleasant and responsive. Food could be much better. Snack before landing was a few dry crackers and a drink. Nothing else. There was a very lumited selection of beverages available on a 7 hour flight. No soft drinks, even in the front cabin.

Delayed departure of one hour and half, inflight entertainment NOT functioning. Plane did not crash and I arrived alive, so I guess it was a good flight.

This was a long flight - 6 hours - and nothing is truly comfortable for that long... but the flight crew was friendly and attentive. The airport in the Azores is small but we weren't there long enough to explore any amenities.

There is one flight a day and it was canceled with no explanation

Flight was ok. Food on way there great a pork dish way back tuna and pasta was not good. Flight attendants were great. Wish they had more soda options like ginger ale seltzer water. Good experience overall. Worst part of trip was car rental Klass company car broke down we were on side of road late night 4 hours awful awful experience all they wanted was 500 euros for help to come absolutely horrible experience we were scared side of highway they offered zero help!

Coming from USA it was nice to be treated nice for a change. Even though our flight was pretty short we were served breakfast. On time flight with very caring staff. Please teach American carriers how to treat people.

Check-in guidance for transfer flight, boarding, in-flight service, seat comfort, etc.

Very rude person at the boarding desk; flight attendant coughing 3 inches from my face three times- not even covering her mouth; boarding process very unacceptable for older people with stairs to all planes (are you all stuck in the 1960’s?). I am sure that I am not remembering all of the negative things, but I am sure you get the message!

Flight was fine. Second meal ( fish sandwich on hard roll) was awful. My suitcase didn’t make the flight. It had been located, but won’t be delivered until tomorrow. Five days after flight

Boarding experience was awful. TAP claims I did not have check in luggage with tickets. I went 3-4 check in agents until I finally found a helpful kind agent who checked in my luggage with no fees. On top of that our flight was over 2 hours delayed with barely an apology or explanation.

The airport temperature at the airport and on the flight was too warm

Flight being delayed for 35 minutes had me lose the connection to my transport

Was the best airplane ✈️ ever that I never see I will traveling again again with u guys.

Flight was delayed on 6/20 to miss international connection. Next flight out was 24 hours later. Not acceptable.

Flight from FNC to OBO was cancelled. We were rebooked to Lisbon later in the day. It was inconvenient but it worked out ok in the end.

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

The plane needs upgrading, the seats are uncomfortable, we are a family of three and they split us and did nothing to group us together, and the food is horrible compared to other airlines bu

Horrible almost missed my flight because my 1st flight was delayed. Airline crew is so unprofessional. The people on the plane do whatever they want kids running screaming. Will never fly this airline again Suitcases never arrived

Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem

It was good but I did not appreciate not being able to check in online

Boarding was odd. Gates switched and had to take a bus to the plane. Luggage got lost. Still waiting on one bag. Flight itself was very nice!

Do Not Fly Iberia. Horrible experience. Iberia changes things at random -like the date of the flight and seat you have bought. After buying my flight, they contacted me and told me I had to return a day later. Then when I was boarding the flight, I discovered they had changed my window seat in a row away from the wing, to an aisle seat in front of the toilet! The worse seat on the plane. But it wasn’t just me- a family was scattered all over the plane. I was able to trade my seat because a father was separated from his son. Unfortunately the seat was the window seat directly over the wing, the loudest seat in the plane. I couldn’t sleep, even with noise cancelling earphones. Also, I ordered gluten free meal-which was tasteless and gave me cramps.

I described my experience in the previous window. I didn't realize that there would be another opportunity for this flight. Please look at my response in the previous window.

I have nothing but great things to say about the crew of the American Airlines flight from Madrid to Dallas. They were fantastic! I do, however, have some disregard for the flight attendant that was late in Dallas, causing us to further delay the boarding of our flight to Portland, and leading to the eventual cancellation of that flight. Because that crew-member was so late, we got caught-up in a weather-related ground stop, eventually causing our pilots to "time-out". So we couldn't get out of Dallas. We would have departed DFW on-time (and before the arrival of the thunderstorm) if not for the lateness of that crew member. The whole time the pilots couldn't tell us whether the flight would be cancelled, and that they couldn't get any information from the airline. By the time we knew the flight was cancelled, all of the flights for the following day were full. So, we didn't even get offered a viable option to get home. The American Airlines customer service desk at DFW was grossly under-staffed. And there were several people who waited in line for four-hours before being helped at that desk. We waited in line for almost 2-hours, until I was able to speak with a customer service agent on the phone (after being on-hold for over an hour). So, once we knew the information about how to get our bag in PDX, and that there weren't any options for flights the next day, we left the line & began searching for another way home. We eventually had to purchase a ticket home on a different airline, in order to get my wife to work on Monday. And we are pursuing a refund of that DFW-PDX leg of the journey. The good news is that the late flight attendant's hair was perfect. And she looked fantastic as she departed the airport & headed back home, while we all hunkered down to sleep in the terminal for the night.

One of the crew members hit me with the car and not even says anything

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

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