$185 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 10/26. 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

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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
Lisbon1 stop$385
Porto
Porto1 stop$353
Ponta Delgada
Ponta Delgadanonstop$436
Faro
Faro1 stop$463
Funchal
Funchal1 stop$489
Lajes
Lajes1 stop$437
Pico Island
Pico Island2 stops$524
Horta
Horta1 stop$590
Vila do Porto
Vila do Porto1 stop$660
Velas
Velas2 stops$490
Porto Santo
Porto Santo1 stop$550
Lisbon
Lisbon1 stop$385
Porto
Porto1 stop$353
Ponta Delgada
Ponta Delgadanonstop$436
Faro
Faro1 stop$463
Funchal
Funchal1 stop$489
Lajes
Lajes1 stop$437
Pico Island
Pico Island2 stops$524
Horta
Horta1 stop$590
Vila do Porto
Vila do Porto1 stop$660
Velas
Velas2 stops$490
Porto Santo
Porto Santo1 stop$550

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

ד', נוב' 19 - ד', נוב' 26
Lufthansa Logo
8:40 pm - 1:10 pmBOS-OPO
11h 30m1 stop
Lufthansa Logo
6:00 am - 1:25 pmOPO-BOS
12h 25m1 stop
$353Lufthansa
Find Deal
ב', דצמ' 29 - ג', ינו' 13
 Logo
8:40 pm - 12:50 pmBOS-OPO
11h 10m1 stop
 Logo
12:05 pm - 8:20 pmOPO-BOS
13h 15m1 stop
ב', אוק' 20 - ג', נוב' 4
United Airlines Logo
6:55 pm - 9:45 amBOS-OPO
9h 50m1 stop
United Airlines Logo
12:35 pm - 11:42 pmOPO-BOS
16h 07m2 stops
$378United Airlines
Find Deal
ד', אוג' 13 - ג', ספט' 9
United Airlines Logo
10:20 am - 9:20 amBOS-OPO
18h 00m1 stop
United Airlines Logo
12:50 pm - 12:42 pmOPO-BOS
28h 52m2 stops
$396United Airlines
Find Deal
א', אוג' 31 - ש', ספט' 13
TAP AIR PORTUGAL Logo
10:55 pm - 10:35 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
5:40 pm - 8:20 pmOPO-BOS
7h 40mnonstop
$414TAP AIR PORTUGAL
Find Deal
ב', ספט' 29 - ב', אוק' 20
TAP AIR PORTUGAL Logo
11:15 pm - 10:55 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
6:05 pm - 8:45 pmOPO-BOS
7h 40mnonstop
$415TAP AIR PORTUGAL
Find Deal
ו', נוב' 28 - א', דצמ' 14
Azores Airlines Logo
9:20 pm - 6:15 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:55 pm - 8:05 pmPDL-BOS
6h 10mnonstop
$436Azores Airlines
Find Deal
ש', נוב' 15 - ש', נוב' 22
Azores Airlines Logo
9:20 pm - 6:15 amBOS-PDL
4h 55mnonstop
Azores Airlines Logo
5:55 pm - 8:05 pmPDL-BOS
6h 10mnonstop
$441Azores Airlines
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ו', ינו' 2 - ב', ינו' 12
KLM Logo
8:50 pm - 9:20 amBOS-FNC
31h 30m1 stop
KLM Logo
10:25 am - 1:20 pmFNC-BOS
31h 55m1 stop
$546KLM
Find Deal
ג', אוג' 26 - ד', ספט' 3
KLM Logo
8:15 pm - 9:20 amBOS-FNC
32h 05m1 stop
KLM Logo
10:20 am - 4:30 pmFNC-BOS
35h 10m1 stop
$610KLM
Find Deal
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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Boston to Portugal.

The cheapest ticket to Portugal from Boston found in the last 72 hours was to Lisbon, at $433 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 $433.

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $1,723 on average.

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 $650 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $996 and $879 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 Tuesday and more expensive on a Friday. On your return trip to Boston, you should consider flying back on a Thursday, 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 5 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.


Good to know

Low seasonJanuary
Cheapest flight$185
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 9% 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.

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

    The cheapest time of day to fly to Portugal is generally in the afternoon, when round-trip flights cost $351 on average. Morning departures are around 13% 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 $836.

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 $316 one-way - $592 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.
8.0
DeltaOverall score based on 7983 reviews
7.9Entertainment
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
Airline reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

2.0 MediocreGim, Jul 2025BGM - DTW
Read more Delta reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

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.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

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.

More space between seats and in bathroom. I don’t think there was any entertainment offered. If there was, I wasn’t aware.

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

It was not Air France but Air Europa. But confusion over our checked luggage. Whether it was checked all the way to Tenerife or not. It was not. Had to line up again in Departures. At least our Sky Priority was honoured. Flight was fine.

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. Flight was fine.

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!

There was chaos at the Naples airport. We arrived three hours early for the flight but there was no invitation available about where to go to check bags until an hour later. Then we had to go to a different terminal to check our bags and check in and back to the first to board.

We flew TAP last October from Newark to Lisbon. The meal was bad. This flight had good food. Also, this flight was delayed. There were TAP employees waiting at Lisbon to make sure we made our connecting flight. I find the TAP website and app frustrating, but the service once we reached the airport was very good

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

Boarding too way too long. Biggest peeve: zero in-seat power in economy! No plug sockets, no USB ports. Plane was an A330, so not old.

boarding is so disorganized, i was literally appalled at the boarding experience

Comfortable but not Polaris or Delta comfort Business Class. Overall 7 out of 10

Tap air Portugal was the best I will traveling again with u guys. Thank u.

The long wait at JFK made the trip horrible. Also not having enough buses when we deplaned was annoying

Terrible! I had to cancel our flights due to my wife Carmen requiring an unexpected second cancer surgery. I first contacted orbitz about obtaining a credit due to medical interruption and orbitz directed me to TAP. I contacted TAP and the representative directed me back to orbitz and refused to even explain what TAP’s medical interruption policy was or how it worked—I wanted that information for a second call to orbitz. Terrible service at a particularly difficult time.

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