$280 Find Cheap Flights from Boston to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Portugal departing on 8/28. 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.
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1 adult, Economy, 0 bags

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Cheap Flights from Boston to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbonnonstop$615
Porto
Porto1 stop$496
Faro
Faro2 stops$671
Funchal
Funchal1 stop$593
Ponta Delgada
Ponta Delgada1 stop$604
Lajes
Lajesnonstop$670
Pico Island
Pico Island1 stop$668
Horta
Horta2 stops$687
Porto Santo
Porto Santo1 stop$892
Vila do Porto
Vila do Porto2 stops$641
Velas
Velas1 stop$703
Corvo Island
Corvo Island2 stops$969
Lisbon
Lisbonnonstop$615
Porto
Porto1 stop$496
Faro
Faro2 stops$671
Funchal
Funchal1 stop$593
Ponta Delgada
Ponta Delgada1 stop$604
Lajes
Lajesnonstop$670
Pico Island
Pico Island1 stop$668
Horta
Horta2 stops$687
Porto Santo
Porto Santo1 stop$892
Vila do Porto
Vila do Porto2 stops$641
Velas
Velas1 stop$703
Corvo Island
Corvo Island2 stops$969

Book Cheap Boston to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Portugal 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 Boston to Portugal

Mon, May 11 - Mon, May 18
TAP AIR PORTUGAL Logo
6:05 pm - 7:00 pm
BOS
-
OPO
19h 55m
1 stop
TAP AIR PORTUGAL Logo
5:50 pm - 8:20 pm
OPO
-
BOS
7h 30mnonstop
$496TAP AIR PORTUGAL
Wed, Apr 29 - Wed, May 6
TAP AIR PORTUGAL Logo
10:45 pm - 5:00 pm
BOS
-
OPO
13h 15m
1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 8:20 pm
OPO
-
BOS
7h 20mnonstop
$524TAP AIR PORTUGAL
Wed, May 6 - Wed, May 20
TAP AIR PORTUGAL Logo
6:05 pm - 10:10 am
BOS
-
OPO
11h 05m
1 stop
TAP AIR PORTUGAL Logo
10:00 am - 8:20 pm
OPO
-
BOS
15h 20m
1 stop
$541TAP AIR PORTUGAL
Mon, Jun 8 - Thu, Jun 18
Iberia Logo
10:50 pm - 6:25 pm
BOS
-
LIS
14h 35m
1 stop
Iberia Logo
2:00 pm - 9:05 pm
LIS
-
BOS
12h 05m
1 stop
$626Iberia
Mon, Sep 21 - Mon, Sep 28
Iberia Logo
11:00 pm - 5:10 pm
BOS
-
LIS
13h 10m
1 stop
Iberia Logo
9:10 am - 9:15 pm
LIS
-
BOS
17h 05m
1 stop
$627Iberia
Mon, Apr 27 - Tue, May 5
Azores Airlines Logo
9:15 pm - 6:20 am
BOS
-
TER
5h 05mnonstop
Azores Airlines Logo
6:05 pm - 7:50 pm
TER
-
BOS
5h 45mnonstop
$670Azores Airlines
Wed, May 13 - Tue, May 19
United Airlines Logo
9:30 am - 11:20 am
BOS
-
FAO
20h 50m
2 stops
United Airlines Logo
11:40 am - 6:20 pm
FAO
-
BOS
11h 40m
1 stop
$671United Airlines
Mon, May 4 - Tue, May 19
Azores Airlines Logo
9:15 pm - 6:20 am
BOS
-
TER
5h 05mnonstop
Azores Airlines Logo
6:05 pm - 7:50 pm
TER
-
BOS
5h 45mnonstop
$685Azores Airlines
Wed, May 13 - Tue, May 19
United Airlines Logo
5:45 am - 11:20 am
BOS
-
FAO
24h 35m
2 stops
United Airlines Logo
11:40 am - 9:25 am
FAO
-
BOS
26h 45m
2 stops
$731United Airlines
Wed, May 13 - Tue, May 19
KLM Logo
4:35 pm - 7:10 am
BOS
-
FAO
33h 35m
1 stop
KLM Logo
8:15 pm - 6:30 pm
FAO
-
BOS
27h 15m
1 stop
$736KLM
Booking Insights

KAYAK's insights & trends for Boston to Portugal flights

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

What is the cheapest Boston to Portugal flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Portugal from Boston found in the last 72 hours was to Porto, at $485 round-trip. The most popular route is from Boston (BOS) to Lisbon (LIS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $568.

What is the cheapest time of day to fly to Portugal?

The average price for all round-trip flights from Boston to Portugal depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Portugal is generally at night, when round-trip flights cost $807 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the evening, which is peak travel time and where the average cost of a ticket is $814.

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

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.

No, with an average price for the route of $741, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Portugal, 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 Boston to Portugal is February, when tickets cost $612 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,026 and $878 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Portugal on a Monday and more expensive on a Friday. On your return trip to Boston, you should consider flying back on a Monday, and avoid Sundays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Portugal, 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 Boston to Portugal, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$280
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Boston to Ponta Delgada

FAQs - booking Portugal flights

  • If my flight to Portugal will be arriving at Lisbon Humberto Delgado (LIS), are there public transportation options to get me from the airport to downtown Lisbon?

    There is a bus service provided by Rodoviária de Lisboa that makes the trip in around 15min for a cost of about EUR 5.25 (USD 6). You can also ride the Metro Lisboa for around 16min and pay about EUR 3.50 (USD 4).

  • Will I need to get a visa before I travel from Boston to Portugal and do I need a passport to make this trip?

    If you are making a trip to Portugal on vacation as a tourist and you do not plan on staying in Portugal for more than 90 days, you will not need a visa to make this trip. You will need to have a passport that stays valid for at least 90 days beyond your intended date of departure from Portugal. It is also important to make sure that your passport has at least two blank pages.

  • If my children are coming on the trip to Portugal and I plan on renting a car, what type of seatbelt laws do I need to know about in Portugal?

    Children that are traveling in vehicles in Portugal that are 15 months old or less must ride in a rear-facing car seat. From 15 months to four years old, they must ride in a forward-facing car seat. Children over the age of four years old but 12 years old or less must ride in a booster seat. All children riding in a vehicle in Portugal must ride in the rear seats of the vehicle.

  • If I have just gotten off a long flight from Boston to Lisbon, Portugal, will I be able to find any shower services at the airport?

    The airport in Lisbon offers showers in both the ABC Business Center as well as the ANA lounge. The ABC Business Center is located on the landside of Terminal 1 and the ANA Lounge is also located landside of Terminal 1 on the sixth floor. Both shower facilities work on a pay-per-use basis.

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

    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 Boston to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Portugal 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 Boston to Portugal?

    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 from Boston to Portugal with an airline and back with another airline.

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

    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 from Boston to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Portugal

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Lisbon $403 one-way - $790 round-trip
  • One of the quickest and most convenient ways to get from downtown Boston to Boston Logan International Airport (BOS) is on the MBTA Blue Line that makes the trip in around 5min for a cost of around $2.50.
  • For those travelers that will be driving themselves to Boston Logan International Airport, the airport offers both central garage parking that offers easy access to all the terminal buildings plus more cost-effective economy garages that offer shuttle service to the terminal buildings from the garages.
  • If your kids are coming along with you on your trip to Portugal, Boston Logan International Airport offers several Kidport play area locations in all three terminals of the airport.
  • For nursing mothers that are traveling out of Boston Logan International Airport, there are nursery rooms available in all three of the terminal buildings of the airport. Each of the nursery rooms includes a changing counter, a sink, as well as a fold-down seat.
  • If you are bringing a four-legged friend along with you on your trip to Portugal, you'll be happy to learn that there are several animal relief areas at Boston Logan International Airport. There are outdoor areas outside of every terminal building and inside the terminal, there is one near Gate E7, Gate C 20, and Gate B 29.

Reviews of the top 5 airlines serving from Boston to Portugal

 
Need help choosing which airline to fly with from Boston to Portugal? 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.
7.9
DeltaOverall score based on 8393 reviews
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

10.0 ExcellentKathryn, Apr 2026
JFK - LAX
Read more Delta reviews

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

They lost my bag and I still have not received it

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

In a 6 hr flight after paying over $700 dllrs of ticket and we still needed to pay for our own food and given ONLY a small glass of water!!! Will not be flying internationally anytime soon with them They are good for very short flights

No food was served on the flight. Boarding desk open two hours before departure. But they recommande to be there three hours before departure !! So we where a group waiting 1 hour in Line for nothing …

My flight from Toronto to PDL was one of the worst experiences of my travel history. I paid for an upgrade and did not receive it, and was also charged an exorbitant amount for a 25-inch bag, and when I tried to explain the situation, I was only told the flight was already over capacity. & I had to accept what I could get!, I am a frequent traveler and will not be flying your airline again!. The only thing positive in this entire trip wete the flight attendants, but other than that, everything else was very disappointing!

They charged us 100 Euro per bag on the return leg with no explanation.

Everything was perfect, clean and very nice staff. But the seat was uncomfortable compared to other companies and the food wasnt good

Flight wasn’t full so got to stretch out and sleep.

Boarding was delayed. Then when we queued, it took us to another long line to stand in. Flight had 0 entertainment. Not even a magazine. But they had a free meal and it was good!

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.

They left our luggage uncovered on tarmac in pouring rain during an hour delay of departure! At our final destination, we found ALL OF OUR CLOTHES/SHOES soaked all the way through!! Our 1st connection plane was a great business class accommodation but only 50 minutes long. Our 2nd connection from Lisbon (another delay with luggage uncovered on tarmac) had only the extra legroom and mediocre food in business class - no entertainment and no extra comfort seating. Will not use TAP Air Portugal again!

The food left a lot to be desired. The crew was great

Horrible experience at tbe check in ladie she was very racist ,she doesn't speak portuguese too and forced me to check in my carrion bag and I saw everyone with carrion bag inside anda lot of space ,she was rude unprofessional

Departed late. Flight crew some of the most professional I have ever experienced. First time we’ve flown this airline

No difference between business class and normal same seat everything same, waste of money

They allowed me to book the flight, which took quite an effort to find the best option for us, and then 2 months later, cancelled it because they didn't think 90 minutes was enough time to get between connections. Why let me book the flight in the first place? I am somewhat disappointed in Kayak and will be choosing other options in the future

Absolutely unacceptable level of service for a Business class: lousy drink and food options, disgusting food (inedible meat, watery rice, etc...), pathetic level of attentiveness from staff, Business class restrooms were not accessible for long periods because blocked of by staff...overall extremely disappointing, will NEVER fly Business on TAP again.

Should really consider a better, smother boarding. Stood in tunnel for 20 plus minutes. Should start from back passengers of plane. Not front.

The plane was small and one felt the turbulence much more. The lines to get through immigration were insanely long.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

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

Information on your arrival and departure airports