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$231+ Cheap flights from Boston (BOS) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
abr. 9 — abr. 161
jue. 4/9
jue. 4/16
1 adult, Economy
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Cheap flight deals from Boston to Portugal

Cheapest flights from Boston to Portugal
Explore the most affordable flight options available from Boston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 10, 2026.

This Super.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/46:00 pm
BOS
-
OPO
1 stop11h 15m
TAP AIR PORTUGAL
mié. 11/118:00 pm
OPO
-
BOS
1 stop23h 40m
TAP AIR PORTUGAL
Deal found 3/8$440
This oojo deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/46:05 pm
BOS
-
OPO
1 stop9h 55m
TAP AIR PORTUGAL
mié. 5/209:00 am
OPO
-
BOS
1 stop10h 45m
TAP AIR PORTUGAL
Deal found 3/8$444
This oojo deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/287:00 pm
BOS
-
OPO
1 stop19h 00m
TAP AIR PORTUGAL
mié. 11/46:00 pm
OPO
-
BOS
1 stop31h 10m
TAP AIR PORTUGAL
Deal found 3/9$450
This Super.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/610:45 pm
BOS
-
OPO
1 stop20h 55m
TAP AIR PORTUGAL
mié. 4/1510:00 am
OPO
-
BOS
1 stop15h 20m
TAP AIR PORTUGAL
Deal found 3/5$458
This FlightHub deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/2710:45 pm
BOS
-
OPO
1 stop16h 40m
TAP AIR PORTUGAL
mar. 5/196:00 pm
OPO
-
BOS
1 stop25h 45m
TAP AIR PORTUGAL
Deal found 3/7$459
This Mytrip deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/208:50 pm
BOS
-
FAO
2 stops21h 40m
Multiple Airlines
mar. 5/58:00 am
FAO
-
BOS
2 stops15h 50m
Multiple Airlines
Deal found 3/7$460
This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/2211:45 pm
BOS
-
OPO
1 stop9h 15m
TAP AIR PORTUGAL
jue. 4/95:05 am
OPO
-
BOS
1 stop14h 40m
TAP AIR PORTUGAL
Deal found 3/9$464
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/97:45 pm
BOS
-
OPO
1 stop9h 45m
United Airlines
mar. 3/1712:35 pm
OPO
-
BOS
1 stop11h 40m
United Airlines
Deal found 3/6$466
This Iberia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/285:45 pm
BOS
-
OPO
1 stop14h 00m
Iberia
mié. 11/412:25 pm
OPO
-
BOS
1 stop12h 25m
Iberia
Deal found 3/6$468
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/2710:45 pm
BOS
-
OPO
1 stop13h 15m
TAP AIR PORTUGAL
jue. 5/2112:35 pm
OPO
-
BOS
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 3/7$469
This FlightHub deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/255:40 pm
BOS
-
LIS
1 stop34h 20m
Scandinavian Airlines
lun. 5/44:25 pm
LIS
-
BOS
1 stop28h 10m
Scandinavian Airlines
Deal found 3/6$514
This Mytrip deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/69:15 pm
BOS
-
PDL
1 stop19h 50m
Multiple Airlines
lun. 4/138:15 pm
PDL
-
BOS
1 stop27h 35m
Multiple Airlines
Deal found 3/6$514

Find flight deals from Boston to Portugal

Keep the following information in mind while searching for Boston to Portugal flight deals. Data was last updated marzo 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$444
(oojo)

One-way from

$231
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$671

Good round-trip deal

$632 or less

Good one-way deal

$291 or less
Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.
Search Deals
From Boston Logan Intl to Portugal
Search Deals
One-way flight from Boston Logan Intl to Portugal
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Portugal.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Portugal.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 10, 2026.
Use the filters below to find and compare flights from Boston to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 4/27

7:05 pm-3:25 pm

1 stop15h 20m

Porto

vie. 5/8

9:25 am-11:37 pm

2 stops19h 12m

$495

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 3/23

5:15 pm-3:25 pm

2 stops18h 10m

Porto

mar. 3/31

6:15 am-8:14 pm

2 stops18h 59m

$512

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 8/5

5:45 am-7:00 am

1 stop20h 15m

Porto

mié. 9/2

2:25 pm-9:27 pm

1 stop12h 02m

$518

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 5/4

4:35 pm-3:30 pm

1 stop17h 55m

Porto

lun. 5/18

4:20 pm-1:10 pm

1 stop25h 50m

$526

BostonVelas

BOS - SJZ

BOSSJZ

Boston Logan Intl

mar. 6/2

9:15 pm-10:50 am

2 stops9h 35m

Velas Sao Jorge Island

mar. 6/16

12:10 pm-7:50 pm

1 stop11h 40m

$561

BostonVelas

BOS - SJZ

BOSSJZ

Boston Logan Intl

dom. 4/5

9:15 pm-9:00 am

2 stops31h 45m

Velas Sao Jorge Island

dom. 4/12

3:20 pm-7:50 pm

2 stops32h 30m

$582

BostonVila do Porto

BOS - SMA

BOSSMA

Boston Logan Intl

dom. 4/5

9:15 pm-7:55 pm

1 stop18h 40m

Vila do Porto Santa Maria

dom. 4/12

3:05 pm-7:50 pm

1 stop8h 45m

$586

BostonLajes

BOS - TER

BOSTER

Boston Logan Intl

dom. 3/22

10:25 pm-8:45 pm

1 stop19h 20m

Lajes

mar. 3/31

8:15 pm-7:50 pm

1 stop27h 35m

$590

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

sáb. 5/2

10:50 pm-8:30 am

1 stop28h 40m

Lisbon Humberto Delgado

mié. 5/6

2:00 pm-9:05 pm

1 stop12h 05m

$600

BostonVelas

BOS - SJZ

BOSSJZ

Boston Logan Intl

vie. 3/20

10:25 pm-10:05 am

2 stops8h 40m

Velas Sao Jorge Island

lun. 3/23

1:00 pm-8:55 pm

2 stops10h 55m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Boston to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Boston to Portugal?

Currently, October is the cheapest month in which you can book a flight from Boston to Portugal (average of $202). Flying from Boston to Portugal in June is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to PT?

Find hourly flight availability from Boston to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 10, 2026.

When flying from Boston to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Boston to Portugal

Explore weekly flight availability from Boston to Portugal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated marzo 10, 2026.

The most flights from BOS to PT0 are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How often are flights from Boston to Portugal delayed?

About 24% of weekly flights between Boston and Portugal have experienced delays in the past year, with the average delay time being 136 minutes.

What is the most punctual flight time for Boston to Portugal flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 17% of flights being delayed.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated marzo 10, 2026.
Peruse reviews from past customers who have flown with Delta,Air France, andUnited Airlines from Boston to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,277 reviews
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air France
7.4
Good
1,543 reviews
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,413 reviews
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Azores Airlines
7.3
Good
94 reviews
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
TAP AIR PORTUGAL
7.1
Good
2,162 reviews
Delta
7.9
Good
8,277 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Portugal?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Portugal from Boston.

  • How popular is this Boston to Portugal flight route?

    This flight path from Boston Logan Intl to Portugal was viewed by 200 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Portugal?

    There are many flights that can get you from Boston to Portugal in 15h 20m. Fly via Delta, United Airlines, or KLM to get the fastest option. Boston and Portugal are separated by a distance of 3134 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Boston to Portugal one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from LEVEL and Iberia, as they are both options that can get you from Boston to Portugal for a low price.

  • What are the most popular routes from Boston to Portugal?

    While some choose either Boston Logan Intl - Ponta Delgada Nordela or Boston Logan Intl - Porto, Boston Logan Intl - Lisbon Humberto Delgado is the most popular route from Boston to Portugal.

  • What are the most reliable airlines from Boston to Portugal?

    No one likes to see their flight delayed. When booking a flight from Boston to Portugal consider choosing JetBlue (77%), Emirates (73%) or KLM (57%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Portugal?

    Looking for the cheapest flight from Boston to Portugal? While on average our users pay $1,087, our data indicates the cheapest price to be $283. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $454.

  • Can I find deals for flights from Boston to Portugal that include hotel bookings?

    Yes. In addition to deals on Boston to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Portugal.

  • Can I find deals for business class flights from Boston to Portugal?

    Yes. Cheapflights offers flight deals from Boston to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Portugal?

    Currently, October is the cheapest month in which you can book a flight from Boston to Portugal (average of $202). Flying from Boston to Portugal in June is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Boston to Portugal

Discover the top 10 airlines that operate flights from Boston to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$78Average$561FlexibilityNo cancel feeOn-time88%
LEVELCheapest$226Average$506FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$260Average$536FlexibilityNo cancel feeOn-time77%
SWISSCheapest$338Average$627FlexibilityNo cancel feeOn-time79%
LEVELCheapest$351Average$550FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$370Average$477FlexibilityNo cancel feeOn-time76%
PLAYCheapest$370Average$396FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$374Average$672FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$383Average$697FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$385Average$518FlexibilityNo cancel feeOn-time77%

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