$309 Find Cheap Flights from Portugal to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 9/29. 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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These are the airlines KAYAK users have selected most often from within our search results for flights to Boston
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Cheap Flights from Portugal to Boston

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

Recent round-trip flight deals from Portugal to Boston

Mon, Oct 5 - Tue, Oct 27
Delta Logo
10:00 am - 6:29 pm
LIS
-
BOS
13h 29m
1 stop
Delta Logo
5:55 pm - 11:20 am
BOS
-
LIS
13h 25m
1 stop
$543Delta
Sat, Jun 13 - Sat, Sep 12
KLM Logo
12:45 pm - 3:14 pm
LIS
-
BOS
7h 29mnonstop
KLM Logo
11:25 pm - 10:45 am
BOS
-
LIS
6h 20mnonstop
$544KLM
Mon, Oct 5 - Sun, Oct 25
Delta Logo
10:00 am - 6:29 pm
LIS
-
BOS
13h 29m
1 stop
Delta Logo
10:40 pm - 9:00 am
BOS
-
LIS
6h 20mnonstop
$546Delta
Mon, Oct 5 - Mon, Oct 26
Multiple Airlines Logo
10:00 am - 6:29 pm
LIS
-
BOS
13h 29m
1 stop
Multiple Airlines Logo
5:55 pm - 11:20 am
BOS
-
LIS
13h 25m
1 stop
$550Multiple Airlines
Wed, Sep 2 - Thu, Oct 1
Multiple Airlines Logo
6:00 am - 9:05 pm
LIS
-
BOS
20h 05m
2 stops
Multiple Airlines Logo
10:55 pm - 9:20 pm
BOS
-
LIS
17h 25m
1 stop
$583Multiple Airlines
Sun, Nov 8 - Sat, Nov 21
TAP AIR PORTUGAL Logo
9:30 am - 7:55 pm
PDL
-
BOS
14h 25m
1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 8:20 am
BOS
-
PDL
10h 20m
1 stop
$722TAP AIR PORTUGAL
Mon, Oct 5 - Sun, Oct 18
TAP AIR PORTUGAL Logo
2:20 pm - 8:20 pm
FNC
-
BOS
11h 00m
1 stop
TAP AIR PORTUGAL Logo
11:00 pm - 2:15 pm
BOS
-
FNC
10h 15m
1 stop
$741TAP AIR PORTUGAL
Sun, Nov 8 - Sat, Nov 21
Azores Airlines Logo
5:50 pm - 8:00 pm
PDL
-
BOS
6h 10mnonstop
Azores Airlines Logo
9:25 pm - 6:20 am
BOS
-
PDL
4h 55mnonstop
$772Azores Airlines
Wed, Jun 3 - Sun, Jun 7
United Airlines Logo
11:00 am - 11:59 pm
PDL
-
BOS
16h 59m
2 stops
United Airlines Logo
7:03 pm - 8:40 am
BOS
-
PDL
9h 37m
1 stop
$780United Airlines
Sun, Jun 14 - Tue, Jun 23
United Airlines Logo
11:00 am - 7:14 pm
PDL
-
BOS
12h 14m
2 stops
United Airlines Logo
9:30 am - 8:20 am
BOS
-
PDL
18h 50m
2 stops
$788United Airlines
Booking Insights

KAYAK's insights & trends for flights to Boston

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

What is the cheapest flight to Boston?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Boston was found on the route from Porto, at $543 return. The most popular connection is from San Francisco to Boston and KAYAK users have found round-trip deals for as low as $311 in the last 3 days.

What is the cheapest day to fly to Boston?

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

Based on KAYAK data, the cheapest day to fly to Boston is Tuesday where round-trip tickets can be as cheap as $712. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $886 on average.

What is the cheapest month to fly to Boston?

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

The cheapest month for flights to Boston is March, where tickets cost $603 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Portugal is $884 and $827 respectively. For one-way flights, the best month to travel is March with an average price of $603.

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

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

The cheapest time of day to fly to Boston is generally in the evening, when round-trip flights cost $592 on average. The most expensive time of day to fly to Boston is generally in the morning, which is peak travel time and where the average cost of a ticket is $807.

What is a good deal for flights to Boston?

If you’re looking for cheap airfare to Boston, 25% of our users found tickets to Boston for the following prices or less: From Lisbon $551 round-trip.

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

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

To get a below average price, you should book around 6 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$309
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Porto to Boston

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

Insights shared by verified travelers who flew the route from Portugal to Boston 
HFlew with Azores Airlines
PDL
-
BOS
Dec 2024
Expect to walk up the stairs on the plane as the ponta drlgado has no air bridge
Sheena
LIS
-
BOS
Jun 2024
Be easy for the longer lines for passports and going through customs. Give your self plenty of time.

FAQs - booking Boston flights

  • What is the cheapest flight to Boston?

    In the last 3 days, the cheapest flight deal to Boston was found on the route from Porto, at $543 return. The most popular connection is from San Francisco to Boston and KAYAK users have found round-trip deals for as low as $311 in the last 3 days.

  • How far is Boston Logan Intl Airport from central Boston?

    You’ll need to travel 3 miles to reach the Boston city center from Boston Logan Intl Airport.

  • What is the name of Boston’s airport?

    Boston is served by Boston Logan Intl Airport, also commonly referred to as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl. The airport code is BOS.

  • How much is a flight to Boston?

    On average, a flight to Boston costs $770. The cheapest price found on KAYAK in the last 2 weeks cost $422 and departed from Ponta Delgada Nordela Airport.

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

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

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston 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 Boston

  • Looking for cheap airfare to Boston? 25% of our users found round-trip tickets to Boston for the following prices or less: From Ponta Delgada $530, from Porto $651, from Lisbon $963
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

Reviews of the top 5 airlines serving from Portugal to Boston

 
See real verified KAYAK customer reviews for airlines flying to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Boston. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8452 reviews
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

It took so long to do a baggage drop and it was bad enough. I had to go to the extreme end of the terminal because it’s a USA flight and go all the way back to the center indigo to security.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

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

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

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.

Not consistent with the food quality (I mean taste not freshness)

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

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 bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

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 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.

On both flights, TAP Air Portugal messed up the seating choices that I paid for. They acknowledged that I had purchased seating, that they were errant in ensuring my choices, but told me nothing could be done about it. When I asked to be refunded, I was directed to "talk to someone from Air Portugal" Mon-Friday, and then I was dismissed. No help, no phone number provided to me. I was very annoyed both times and feel cheated.

The worst thing was baggage claim. In my return flight I was waiting 90 minutes for my baggage. and when I asked the airport they said it’s the airline. So frustrating after an 8-hour flight.

Business class seats aren't comfortable. Food was not good.

Didn't make announcements during boarding, flight attendant seemed annoyed when I asked for water. Too many hours between flights. Confusing check in at the Lisbon airport.

Chaotic boarding with no announcements. Carry on luggage needs to be checked. Bare minimum zero frill flights. Not a whole lot of anything positive to be said .

It poured rain, our luggage was sitting out in it uncovered on the transport cart while our plane was delayed! Nice business class plane for short flight to Lisbon, but more delay & rain in Lisbon, with terrible Business class seat with no entertainment & cold food on longer flight to London…ALL LUGGAGE AND CLOTHES INSIDE THEM WERE SOAKED THROUGH!!! Could only try with hair dryer to get some drying before quick turn round to train trip.

Delayed at the beginning and the end and almost missed our connection

Menzies group staff not very sympathetic good at breaking up families during the boarding process

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 crew was great. There was a big guy sitting next to me who was hanging over my side of the armrest the entire time. Maybe some information about "Be considerate of your neighbors, this is tight space, be kind". The breakfast sandwich was not appealing at all.

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