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$283+ Cheap flights from Boston (BOS) to Porto (OPO)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — OPO
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Boston Logan Intl to Porto are usually found in January or November, booked 49 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Boston to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$481
(Kiwi.com)

One-way from

$283
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$591

Good round-trip deal

$709 or less

Good one-way deal

$371 or less
Provider with most accurate pricing for Boston Logan Intl-Porto flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Porto flights.
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From Boston Logan Intl to Porto
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One-way flight from Boston Logan Intl to Porto
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Highest demand for flights based on searches. 18% potential increase in price ($153 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Porto.
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Price to beat on a one-way flight from Boston Logan Intl to Porto.
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Find flight deals from Boston to Porto

Cheapest flights from Boston to Porto
Explore the most affordable flight options available from Boston to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. 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.
mié. 3/197:00 amBOS - OPO
2 stops24h 15mMultiple Airlines
mar. 3/256:00 amOPO - BOS
2 stops20h 39mMultiple Airlines
Deal found 2/20$490
This Kiwi.com deal was found by Cheapflights users on 2/20. 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. 3/1010:55 pmBOS - OPO
1 stop15h 45mSWISS
mié. 3/1912:05 pmOPO - BOS
1 stop13h 15mSWISS
Deal found 2/20$494
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/241:10 pmBOS - OPO
2 stops14h 30mAmerican Airlines
mié. 4/28:15 amOPO - BOS
1 stop11h 45mAmerican Airlines
Deal found 2/20$499
This KLM deal was found by Cheapflights users on 2/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/317:20 pmBOS - OPO
1 stop15h 10mKLM
lun. 4/75:30 pmOPO - BOS
1 stop25h 10mKLM
Deal found 2/20$517
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
mar. 3/119:40 pmBOS - OPO
1 stop11h 10mLufthansa
mar. 3/181:45 pmOPO - BOS
1 stop33h 50mLufthansa
Deal found 2/20$519
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1211:25 amBOS - OPO
2 stops19h 05mDelta
mié. 3/1911:15 amOPO - BOS
1 stop13h 00mDelta
Deal found 2/20$520
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/204:30 pmBOS - OPO
1 stop10h 05mIberia
mié. 11/128:20 amOPO - BOS
1 stop12h 00mIberia
Deal found 2/20$530
This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1210:50 amBOS - OPO
2 stops20h 25mAir Canada
mié. 3/196:00 amOPO - BOS
2 stops31h 39mAir Canada
Deal found 2/20$535
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/185:15 pmBOS - OPO
1 stop18h 00mUnited Airlines
mar. 3/256:00 amOPO - BOS
2 stops37h 52mUnited Airlines
Deal found 2/20$539
This FlightHub deal was found by Cheapflights users on 2/20. 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. 11/2310:35 pmBOS - OPO
1 stop11h 45mTAP AIR PORTUGAL
vie. 1/99:00 amOPO - BOS
1 stop10h 30mTAP AIR PORTUGAL
Deal found 2/20$545
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/289:55 pmBOS - OPO
1 stop17h 30mBritish Airways
mar. 9/3012:20 pmOPO - BOS
1 stop12h 30mBritish Airways
Deal found 2/20$579
This Booking.com deal was found by Cheapflights users on 2/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/810:50 pmBOS - OPO
1 stop17h 30mVueling
jue. 4/108:35 amOPO - BOS
1 stop17h 30mVueling
Deal found 2/20$584

Find flights from Boston to Porto within your budget

Customize your flight search to find flights from Boston to Porto 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 febrero 20, 2025.

Fly from

Boston

Fly to

Porto

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 3/19

7:00 am-11:15 am

2 stops24h 15m

Porto

mar. 3/25

6:00 am-10:39 pm

2 stops20h 39m

$490

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 3/10

10:55 pm-6:40 pm

1 stop15h 45m

Porto

mié. 3/19

12:05 pm-9:20 pm

1 stop13h 15m

$494

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 3/24

1:10 pm-7:40 am

2 stops14h 30m

Porto

mié. 4/2

8:15 am-3:00 pm

1 stop11h 45m

$499

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 3/31

7:20 pm-3:30 pm

1 stop15h 10m

Porto

lun. 4/7

5:30 pm-1:40 pm

1 stop25h 10m

$517

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mar. 3/11

9:40 pm-12:50 pm

1 stop11h 10m

Porto

mar. 3/18

1:45 pm-7:35 pm

1 stop33h 50m

$519

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 3/12

11:25 am-10:30 am

2 stops19h 05m

Porto

mié. 3/19

11:15 am-8:15 pm

1 stop13h 00m

$520

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 3/12

10:50 am-11:15 am

2 stops20h 25m

Porto

mié. 3/19

6:00 am-9:39 am

2 stops31h 39m

$535

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mar. 3/18

7:00 am-11:40 am

2 stops24h 40m

Porto

mar. 3/25

6:00 am-3:52 pm

2 stops37h 52m

$539

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mar. 4/8

10:50 pm-9:20 pm

1 stop17h 30m

Porto

jue. 4/10

8:35 am-9:05 pm

1 stop17h 30m

$584

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

vie. 3/28

10:20 pm-11:50 am

1 stop9h 30m

Porto

sáb. 4/12

12:35 pm-7:50 pm

1 stop12h 15m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 26 results
1
2
3

Compare providers for flights from Boston to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Porto in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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.

Travel insights for flights from Boston to Porto

Get recent, data-driven insights about flights from Boston to Porto including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Boston to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Porto. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Porto, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Porto (average of $523). Flying from Boston to Porto in June is currently the most expensive (average of $1,092). 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 OPO?

Find hourly flight availability from Boston to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

It’s optimal to fly from Boston to Porto at noon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Boston to Porto?

Use this chart to determine the cheapest time to fly round-trip from Boston to Porto. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Boston to Porto flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated febrero 20, 2025.
Get a feel of what it's like to fly with Delta, KLM and Azores Airlines from Boston to Porto by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Azores Airlines
7.6
Good
62 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • How popular is this Boston to Porto flight route?

    Flights from Boston Logan Intl to Porto have been viewed 4 times in the past calendar month.

  • What are the cheapest airlines flying from Boston to Porto round-trip?

    According to our current data, SWISS ($481), American Airlines ($499), and Air Canada ($510) offers the cheapest pricing from Boston to Porto. These flights start at 29% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $289 on Azores Airlines. Other airlines that offer cheap prices include Iberia from $294 and TAP AIR PORTUGAL from $360 one-way.

  • What are the cheapest flights from Boston to Porto?

    Looking at all options, your cheapest flight can be booked for $287. While the most popular route (Boston Logan Intl - Porto) can be booked for $473 on average our data indicates $1,067 when flying from Boston to Porto.

  • Where are the most common layover locations when flying from Boston to Porto?

    Flights departing from Boston and landing in Porto layover in Lisbon most frequently. Ponta Delgada is the second most popular location for layovers on flights from Boston to Porto. Madrid sees the third most layovers on flights from Boston to Porto.

  • What are some popular things to do or see while on a layover in Lisbon?

    The majority of Lisbon visitors spend their time at Chiado, Praça do Marquês de Pombal, and Centro Cultural de Belém. Travelers on a layover in Lisbon can visit Chiado, Praça do Marquês de Pombal, and Centro Cultural de Belém, by traveling 4.5 mi, 3.6 mi, and 6.9 mi, respectively after landing at Lisbon Humberto Delgado. Travelers in need of a car in Lisbon can rent one for about $18 per day.

  • What are points of interest worth seeing during a layover in Madrid?

    If you're on a layover in Madrid and looking for things to do, consider visiting Puerta del Sol, Plaza Mayor, or Museo del Prado. Travelers on a layover in Madrid can visit Puerta del Sol, Plaza Mayor, and Museo del Prado, by traveling 8.4 mi, 8.6 mi, and 8.1 mi, respectively after landing at Madrid Barajas. Those looking to explore during their layover in Madrid can rent a car from Madrid Barajas for about $23 per day.

  • Where are the least popular layover locations for Boston to Porto flights?

    Flights departing from Boston and landing in Porto layover in Paris least frequently. Amsterdam follows Paris in terms of the least common layover location on Boston to Porto flights. Zurich follows Amsterdam in terms of the least frequent layover locations on Boston to Porto flights.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Porto 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 Porto?

    Currently, January is the cheapest month in which you can book a flight from Boston to Porto (average of $523). Flying from Boston to Porto in June is currently the most expensive (average of $1,092). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
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Matosinhos
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Top 10 airlines flying from Boston to Porto

Discover the top 10 airlines that operate flights from Boston to Porto. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$377Average$667FlexibilityNo cancel feeOn-time74%
PLAYCheapest$402Average$636FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$446Average$679FlexibilityNo cancel feeOn-time88%
IberiaCheapest$500Average$751FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$510Average$753FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$514Average$827FlexibilityNo cancel feeOn-time79%
DeltaCheapest$517Average$696FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$518Average$626FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$539Average$755FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$544Average$701FlexibilityNo cancel feeOn-time71%
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