$252 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
Porto2 stops$694
Faro
Faro1 stop$460
Funchal
Funchal1 stop$649
Ponta Delgada
Ponta Delgadanonstop$814
Lajes
Lajesnonstop$562
Pico Island
Pico Island1 stop$699
Horta
Horta1 stop$671
Porto Santo
Porto Santo2 stops$986
Vila do Porto
Vila do Porto1 stop$971
Velas
Velas1 stop$669
Lisbon
Lisbon1 stop$862
Porto
Porto2 stops$694
Faro
Faro1 stop$460
Funchal
Funchal1 stop$649
Ponta Delgada
Ponta Delgadanonstop$814
Lajes
Lajesnonstop$562
Pico Island
Pico Island1 stop$699
Horta
Horta1 stop$671
Porto Santo
Porto Santo2 stops$986
Vila do Porto
Vila do Porto1 stop$971
Velas
Velas1 stop$669

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

Sun, Oct 11 - Thu, Oct 22
Multiple Airlines Logo
11:35 pm - 9:45 am
BOS
-
FAO
29h 10m
1 stop
Multiple Airlines Logo
9:40 am - 9:05 pm
FAO
-
BOS
16h 25m
1 stop
$460Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
LEVEL Logo
11:35 pm - 9:45 am
BOS
-
FAO
29h 10m
1 stop
LEVEL Logo
12:05 pm - 9:45 pm
FAO
-
BOS
14h 40m
1 stop
$511LEVEL
Mon, Nov 2 - Tue, Nov 3
Azores Airlines Logo
9:25 pm - 6:20 am
BOS
-
TER
4h 55mnonstop
Azores Airlines Logo
5:50 pm - 8:00 pm
TER
-
BOS
6h 10mnonstop
$562Azores Airlines
Mon, Nov 23 - Tue, Dec 1
Azores Airlines Logo
9:25 pm - 6:20 am
BOS
-
TER
4h 55mnonstop
Azores Airlines Logo
5:50 pm - 8:00 pm
TER
-
BOS
6h 10mnonstop
$587Azores Airlines
Tue, Dec 1 - Sun, Dec 6
TAP AIR PORTUGAL Logo
10:45 pm - 2:05 pm
BOS
-
TER
11h 20m
1 stop
TAP AIR PORTUGAL Logo
11:50 am - 2:40 pm
TER
-
BOS
30h 50m
1 stop
$621TAP AIR PORTUGAL
Tue, Oct 13 - Sun, Nov 15
United Airlines Logo
12:36 pm - 7:00 am
BOS
-
OPO
13h 24m
2 stops
United Airlines Logo
6:00 am - 1:45 pm
OPO
-
BOS
12h 45m
1 stop
$695United Airlines
Tue, Oct 27 - Sat, Nov 7
TAP AIR PORTUGAL Logo
11:45 pm - 10:30 am
BOS
-
OPO
6h 45mnonstop
TAP AIR PORTUGAL Logo
8:30 am - 2:40 pm
OPO
-
BOS
11h 10m
1 stop
$696TAP AIR PORTUGAL
Mon, Aug 17 - Mon, Aug 24
Delta Logo
11:20 pm - 10:45 am
BOS
-
LIS
6h 25mnonstop
Delta Logo
12:45 pm - 3:15 pm
LIS
-
BOS
7h 30mnonstop
$864Delta
Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
6:50 pm - 9:20 am
BOS
-
LIS
9h 30m
1 stop
United Airlines Logo
11:25 am - 6:07 pm
LIS
-
BOS
11h 42m
1 stop
$866United Airlines
Mon, Jul 13 - Mon, Jul 20
Delta Logo
9:00 am - 8:00 am
BOS
-
LIS
18h 00m
1 stop
Delta Logo
12:45 pm - 3:10 pm
LIS
-
BOS
7h 25mnonstop
$869Delta
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 $646 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 $665.

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 $801 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 $866.

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 $827 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 $565 (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 $1,028 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 30% 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$252
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 26% 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 $464 one-way - $862 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.
7.8
DeltaOverall score based on 8441 reviews
7.8Comfort
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

8.0 ExcellentAnonymous, Jun 2026
BOS - RDU
Read more Delta reviews

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

The flight was smooth, the crew was great but the plane was quite old

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

Seats! The eternal problem in economy. They are like stones!!

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

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 :)

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

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.

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.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

Not great , just ok . I expected better food but it did not deliver . Flight staff was ok . The guy at the drop off bag counter was the only saving grace in this whole trip . He was pleasant, friendly and very helpful . You couldn’t ask for a better assistance from him .

The first half from DC to Paris was very good and the staff were very helpful and humble BUT flight from Paris to Mumbai was sad. 1) it was packed. 2) no space on head compartment 3) crews were unresponsive to the calls 4) one crew member literally banged the bottle of water after giving me glass of water. A little water splashed on me and she was unapologetic 5) with so many hours of flight, little leg space should be taken care else don’t fill your airline till brim which affects your crew and they remove anger on us. 6) huge line for washrooms. 7) 2nd half journey was pathetic

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

It was Swiss. Our kosher meals were literally frozen solid and therefore inedible, and the crew didnt care.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

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

It’s always a great time flying with united airlines.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

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!

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.

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.

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.

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

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!

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.

Late. Lack of updates. Rude hostesses. Terrible food. Lack of headphones.

Flight was delayed but crew gave little to no communication, then “began boarding” but really just had everyone stand up and wait for an hour without any news or updates, as if we were going to start boarding at any second. Total chaos. Seemed like this was their first time boarding a plane. When we arrived at our destination, we waited for over an hour for the baggage claim belt to even turn on. Probably waited at baggage claim for our luggage for close to two hours. Everyone was very confused and of course we all worried that the luggage was lost. Again, zero communication and everyone we asked just said “I don’t know.” So we were left wondering whether to wait, or file a missing baggage claim, or check the other baggage claim belts (which we did every fifteen-twenty minutes because we were just confused). Lack of communication throughout the experience was a huge issue.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils. I'd originally booked to fly Business Class; those seats didn't look that great either.

I’m still missing my bags. I’m soo frustrated

Very efficient boarding - other airlines could learn from them. Friendly, efficient crew. Red eye flight, so dinner meal was irrelevant. Breakfast could have been more substantial. Seats reasonably comfy.

The quality of the aircraft and the professionalism of TAP's staff were perfect. The quality of vegan meals can be hit or miss depending on the airline and the city of departure; on this flight, our vegan meals were quite good. The boarding process for the connecting flight in Lisbon could have been organized a bit better, but it did not spoil our overall experience with TAP, which was excellent. I'd definitely recommend TAP to others.

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

Information on your arrival and departure airports