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$424+ Cheap flights from Porto (OPO) to Boston (BOS)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
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Find cheap flights from Porto to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Porto to Boston Logan Intl are usually found in October or February, booked 76 days in advance, depart on a Monday or Thursday and return on a Friday

Cheap flight deals from Porto to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Boston (BOS). 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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$499
(SmartFares)

One-way from

$424
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$495

Good round-trip deal

$486 or less

Good one-way deal

$512 or less
Provider with most accurate pricing for Porto-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Porto-Boston Logan Intl flights.
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From Porto to Boston Logan Intl
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One-way flight from Porto to Boston Logan Intl
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Highest demand for flights based on searches. 17% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Porto to Boston Logan Intl.
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Price to beat on a one-way flight from Porto to Boston Logan Intl.
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Find flight deals from Porto to Boston

Cheapest flights from Porto to Boston
Explore the most affordable flight options available from Porto to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:30 pmOPO - BOS
1 stop31h 25mMultiple Airlines
Tue 11/186:05 pmBOS - OPO
1 stop11h 05mMultiple Airlines
Deal found 10/9$475
This SmartFares deal was found by Cheapflights users on 10/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:00 pmOPO - BOS
1 stop13h 10mTAP AIR PORTUGAL
Sun 11/306:05 pmBOS - OPO
1 stop11h 30mTAP AIR PORTUGAL
Deal found 10/9$499
This oojo deal was found by Cheapflights users on 10/9. 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.
Thu 11/62:00 pmOPO - BOS
1 stop11h 10mTAP AIR PORTUGAL
Sat 12/66:05 pmBOS - OPO
1 stop15h 55mTAP AIR PORTUGAL
Deal found 10/9$501
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:05 pmOPO - BOS
2 stops54h 40mMultiple Airlines
Sun 11/306:05 pmBOS - OPO
1 stop10h 55mMultiple Airlines
Deal found 10/9$534
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:00 amOPO - BOS
2 stops18h 10mMultiple Airlines
Fri 11/1410:45 pmBOS - OPO
1 stop13h 15mMultiple Airlines
Deal found 10/9$547
This Rumbo deal was found by Cheapflights users on 10/9. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:35 pmOPO - BOS
1 stop29h 15mMultiple Airlines
Wed 10/1511:05 pmBOS - OPO
Nonstop6h 40mMultiple Airlines
Deal found 10/9$584
This Iberia deal was found by Cheapflights users on 10/9. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:20 amOPO - BOS
1 stop16h 30mIberia
Mon 1/2610:40 pmBOS - OPO
1 stop17h 35mIberia
Deal found 10/9$617
This Delta deal was found by Cheapflights users on 10/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:30 amOPO - BOS
1 stop11h 50mDelta
Sat 12/66:30 pmBOS - OPO
1 stop11h 00mDelta
Deal found 10/9$618

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Boston 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 October 10, 2025.
Use the filters below to find and compare flights from Porto to Boston that are best for you.

Fly from

Porto

Fly to

Boston

Route

Depart

Return

Price

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 3/6

5:35 pm-3:50 pm

1 stop27h 15m

Boston Logan Intl

Thu 3/19

6:35 pm-4:55 pm

1 stop18h 20m

$512

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 3/6

5:35 pm-3:50 pm

1 stop27h 15m

Boston Logan Intl

Sat 3/14

8:45 pm-4:45 pm

2 stops40h 00m

$576

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 2/28

12:40 pm-8:05 pm

1 stop12h 25m

Boston Logan Intl

Mon 3/16

11:40 pm-9:15 pm

1 stop17h 35m

$619

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 11/7

6:30 am-1:20 pm

1 stop11h 50m

Boston Logan Intl

Sat 12/6

6:30 pm-10:30 am

1 stop11h 00m

$621

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 3/4

6:00 am-1:10 pm

1 stop12h 10m

Boston Logan Intl

Sat 3/14

8:00 pm-9:30 am

1 stop9h 30m

$644

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 3/4

6:00 am-1:10 pm

1 stop12h 10m

Boston Logan Intl

Tue 3/17

3:18 pm-9:30 am

2 stops14h 12m

$644

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 3/1

6:00 am-1:10 pm

1 stop12h 10m

Boston Logan Intl

Sun 3/15

8:00 pm-9:30 am

1 stop9h 30m

$644

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 3/26

6:00 am-2:10 pm

1 stop12h 10m

Boston Logan Intl

Mon 3/30

6:30 pm-9:45 am

1 stop10h 15m

$644

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 3/4

6:00 am-1:10 pm

1 stop12h 10m

Boston Logan Intl

Mon 3/16

12:20 pm-9:30 am

2 stops17h 10m

$644

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 3/2

6:00 am-1:10 pm

1 stop12h 10m

Boston Logan Intl

Sat 3/14

6:30 pm-9:30 am

1 stop11h 00m

$644

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 22 results
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Compare providers for flights from Porto to Boston

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 Porto to Boston in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 Porto-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Boston 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 Porto-Boston 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 Porto to Boston

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

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

Use this chart to determine the optimal time to book a round-trip flight from Porto to Boston. Price data was last updated on October 3, 2025.

The price you pay for your flight from Porto to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Porto to Boston (average of $443). Flying from Porto to Boston in July is currently the most expensive (average of $604). 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 OPO to BOS?

Find hourly flight availability from Porto to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 10, 2025.

One of the essential ways to save on airfare from Porto to Boston is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 22% on airfare.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated October 10, 2025.
Read through reviews of airlines operating flights from Porto to Boston, such as Azores Airlines and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Azores Airlines
7.5
Good
81 reviews

Comfort

7.3

Overall

7.5

Boarding

7.2

Entertainment

5.5

Crew

8.1

Food

6.6

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.
Azores Airlines
7.5
Good
81 reviews
Azores Airlines
7.5
Good
81 reviews

Comfort

7.3

Overall

7.5

Boarding

7.2

Entertainment

5.5

Crew

8.1

Food

6.6

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.
TAP AIR PORTUGAL
7.1
Good
2,005 reviews
Azores Airlines
7.5
Good
81 reviews

Comfort

7.3

Overall

7.5

Boarding

7.2

Entertainment

5.5

Crew

8.1

Food

6.6

Reviews

1 / 1
8.0
Excellent

Anonymous,Feb 2025

YYZ - PDL

Hour and a half late because of weather and deicing. Assume this if you plan connections.

Related info for your journey

Find useful and relevant information for your journey from Porto to Boston. 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 Porto to Boston flight route?

    Flights from Porto to Boston Logan Intl have been viewed 1 times in the past calendar month.

  • How long is the flight from Porto to Boston?

    A quick flight from Porto to Boston can take about 11h 50m. Scandinavian Airlines provides one of the quickest options available for as low as $621. Airlines will cover a distance of 3134 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Porto to Boston round-trip from $451. Another airline that can offer you cheap pricing is TAP AIR PORTUGAL. You may be able to fly from Porto to Boston for 31% less than the average price by searching for these airlines.

  • What are the cheapest flights from Porto to Boston?

    Looking at all options, your cheapest flight can be booked for $439. While the most popular route (Porto - Boston Logan Intl) can be booked for $485 on average, our data indicates $511 when flying from Porto to Boston.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Porto to Boston (average of $443). Flying from Porto to Boston in July is currently the most expensive (average of $604). 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
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Porto to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Boston flights
Ponta Delgada to Boston flights
Lisbon to Hartford flights
Lisbon to Albany flights
Funchal to Boston flights

Top 2 airlines flying from Porto to Boston

Discover the top 2 airlines that operate flights from Porto to Boston. 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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$451Average$564FlexibilityNo cancel feeOn-time74%
TAP AIR PORTUGALCheapest$476Average$680FlexibilityNo cancel feeOn-timeN/A

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