$254 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 8/25. 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, 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
Lisbon1 stop$862
Porto
Porto1 stop$688
Faro
Faro1 stop$436
Funchal
Funchal1 stop$706
Ponta Delgada
Ponta Delgada1 stop$833
Lajes
Lajes1 stop$617
Pico Island
Pico Island2 stops$761
Horta
Horta1 stop$865
Porto Santo
Porto Santo1 stop$677
Vila do Porto
Vila do Porto2 stops$804
Velas
Velas2 stops$693
Corvo Island
Corvo Island2 stops$964
Lisbon
Lisbon1 stop$862
Porto
Porto1 stop$688
Faro
Faro1 stop$436
Funchal
Funchal1 stop$706
Ponta Delgada
Ponta Delgada1 stop$833
Lajes
Lajes1 stop$617
Pico Island
Pico Island2 stops$761
Horta
Horta1 stop$865
Porto Santo
Porto Santo1 stop$677
Vila do Porto
Vila do Porto2 stops$804
Velas
Velas2 stops$693
Corvo Island
Corvo Island2 stops$964

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

Thu, Oct 1 - Thu, Oct 15
Multiple Airlines Logo
10:55 pm - 12:00 pm
BOS
-
FAO
32h 05m
1 stop
Multiple Airlines Logo
1:35 pm - 9:05 pm
FAO
-
BOS
12h 30m
1 stop
$436Multiple Airlines
Thu, Oct 1 - Tue, Oct 13
Multiple Airlines Logo
10:55 pm - 12:00 pm
BOS
-
FAO
32h 05m
1 stop
Multiple Airlines Logo
6:45 pm - 9:05 pm
FAO
-
BOS
31h 20m
1 stop
$445Multiple Airlines
Sun, Oct 4 - Thu, Oct 15
Iberia Logo
11:35 pm - 9:45 am
BOS
-
FAO
29h 10m
1 stop
Iberia Logo
9:40 am - 9:05 pm
FAO
-
BOS
16h 25m
1 stop
$486Iberia
Wed, Oct 7 - Thu, Oct 15
Multiple Airlines Logo
10:55 pm - 6:05 pm
BOS
-
FAO
14h 10m
1 stop
Multiple Airlines Logo
1:35 pm - 9:05 pm
FAO
-
BOS
12h 30m
1 stop
$507Multiple Airlines
Sun, Oct 4 - Sun, Oct 11
Iberia Logo
11:35 pm - 9:45 am
BOS
-
FAO
29h 10m
1 stop
Iberia Logo
12:05 pm - 9:45 pm
FAO
-
BOS
14h 40m
1 stop
$591Iberia
Wed, Nov 11 - Sun, Nov 15
TAP AIR PORTUGAL Logo
6:00 pm - 11:15 pm
BOS
-
TER
25h 15m
1 stop
TAP AIR PORTUGAL Logo
11:50 am - 7:55 pm
TER
-
BOS
12h 05m
1 stop
$617TAP AIR PORTUGAL
Mon, Oct 26 - Mon, Nov 2
TAP AIR PORTUGAL Logo
7:00 pm - 11:00 am
BOS
-
TER
13h 00m
1 stop
TAP AIR PORTUGAL Logo
2:55 pm - 8:45 pm
TER
-
BOS
33h 50m
1 stop
$623TAP AIR PORTUGAL
Wed, Aug 5 - Wed, Sep 2
United Airlines Logo
5:45 am - 7:00 am
BOS
-
OPO
20h 15m
1 stop
United Airlines Logo
11:20 am - 6:07 pm
OPO
-
BOS
11h 47m
1 stop
$688United Airlines
Thu, Dec 3 - Thu, Dec 10
United Airlines Logo
10:44 am - 9:30 am
BOS
-
OPO
17h 46m
2 stops
United Airlines Logo
12:35 pm - 11:54 pm
OPO
-
BOS
16h 19m
2 stops
$690United Airlines
Tue, Jul 21 - Thu, Aug 6
Delta Logo
11:25 pm - 10:45 am
BOS
-
LIS
6h 20mnonstop
Delta Logo
10:00 am - 4:13 pm
LIS
-
BOS
11h 13m
1 stop
$871Delta
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 5 days was to Porto, at $658 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 5 days was $679.

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 in the evening, when round-trip flights cost $803 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 at night, which is peak travel time and where the average cost of a ticket is $850.

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 $858 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 November, when tickets cost $562 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,035 and $1,033 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 Saturday. On your return trip to Boston, you should consider flying back on a Tuesday, 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 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$254
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Boston to Ponta Delgada

Flights from Boston to Portugal: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Boston to Portugal 
RebeccaFlew with TAP AIR PORTUGAL
BOS
-
OPO
Apr 2026
Flight was full and they made me check my bag, so come prepared to do so.
MaximFlew with TAP AIR PORTUGAL
BOS
-
LIS
Mar 2024
I was waiting for a flight boarding announcement in the Lounge in terminal C at Logan Airport in Boston, but the announcement never came. If I did not go to the gate to check, I might have missed the flight. So, do not count on the airline to communicate flight boarding information to the lounge staff. They are supposed to do that, but, apparently, sometimes it does not happen.

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 $476 one-way - $871 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 8397 reviews
7.8Entertainment
7.2Food
7.8Comfort
8.1Boarding
8.5Crew
Airline reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

4.0 OkayMichelle, Jun 2026
ATL - PIT
Read more Delta reviews

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Everything is good except the seats are tightened no rooms for the legs,

The flight crew was exceptionally friendly and helpful. Also the seats were comfortable and roomier than many other airlines.

The plane's pilots, including the captain himself, thanked me for the flight. I know it's just marketing, but it was really nice to see these people. It's a great idea. Airplane food is never "good," but the entire crew and flight organization were top-notch. I really liked Delta, and I think I've traveled all over the world, and that was something new for me. Maybe even the old planes, the B767, but next time I have a choice, Delta will be my first choice. Thank you, a satisfied passenger :)

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

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

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.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Smooth travel. Immediate update prior flight delay so I can arrange myself properly without too rush.

Everything was the best it could be. Crew found me with pre- ordered food. Excellent experience!

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

The crew was friendly. But boarding was disorganized (passengers with kids or needing help were scanned first, but not given actual boarding access first). But the worst part was the plane’s air conditioning was either not working or set poorly. It was a stifling, hot flight. Extremely uncomfortable for everyone.

Everything was fine. No complaints. It would have been nice to get a drink w the flight. Also I would have liked notice that no meals were included beforehand.

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 crew was excellent. What I did not enjoy was the food. I have taken many international flights and this was on the low end. Otherwise the trip was fine.

Seats were the most uncomfortable seats i ever experienced on a flight to Europe from Boston. It was a waist of money in buying premium seats for top dollars. I want my money back for what i paid extra for my seats. Awful conditions!

On the seat map for this flight with TAP was shown a business class configuration of 2 rows/8 seats. To my surprise, 4 rows/24 seats being the middle is kept empty, old European type. I chose seat 2F, the the leg room economy dimension. This is not what I paid for. Disappointed!

Boarding felt a little chaotic as everyone was waiting around the gate. Food was great, service was good.

The passport control process in Lisbon ranks as a 1 on a 1 to 5 scale. Terrible. In line 2 hours and still missed our first flight. Next day, 1.5 hours but we made the flight. The Business Class food was poor. Unidentifiable. Not tasty at all. Unacceptable in BC. Attendants were adequate. Flight left late and arrived late. After this trip, we will not be flying TAP nor will we be connecting through Lisbon.

Flight attendants in business class were rather indifferent While in second leg operated by Portugalia TAP subsidiary were outstanfy

Great service overall. One of the best international flight experiences Ive had.

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

We were unable to check in due to technical problems on TAP’s end. The flight was delayed forty minutes with no reason given. We received timely notice of the flight delay. We were also notified of a gate change. The new gate was at a different terminal. When we got to the new terminal, we learned that we had to go back to the old terminal first to check in. This information should have been included along with the gate change notification. Also unexplained, the steward skipped us when offering breakfast.

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

Information on your arrival and departure airports