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$329+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Porto to Boston Logan Intl are usually found in April or October, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 July 24, 2026.

This Finnair deal was found by Cheapflights users on 7/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:25 pm
OPO
-
BOS
1 stop12h 35m
Finnair
Mon 12/145:00 pm
BOS
-
OPO
1 stop9h 40m
Finnair
Deal found 7/24$470
This Finnair deal was found by Cheapflights users on 7/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:25 pm
OPO
-
BOS
1 stop12h 35m
Multiple Airlines
Tue 11/106:45 pm
BOS
-
OPO
1 stop18h 00m
Multiple Airlines
Deal found 7/22$477
This Mytrip deal was found by Cheapflights users on 7/22. 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.
Sat 9/56:00 am
OPO
-
BOS
1 stop19h 10m
Lufthansa
Mon 9/148:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/22$481
This Finnair deal was found by Cheapflights users on 7/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/158:40 pm
OPO
-
BOS
2 stops31h 14m
Multiple Airlines
Mon 1/255:00 pm
BOS
-
OPO
1 stop9h 40m
Multiple Airlines
Deal found 7/22$482
This Mytrip deal was found by Cheapflights users on 7/19. 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.
Thu 10/16:00 am
OPO
-
BOS
1 stop19h 10m
Lufthansa
Mon 10/58:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/19$483
This Mytrip deal was found by Cheapflights users on 7/22. 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.
Mon 9/146:00 am
OPO
-
BOS
1 stop14h 40m
Lufthansa
Sun 9/208:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/22$484
This Mytrip deal was found by Cheapflights users on 7/23. 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.
Sat 9/56:00 am
OPO
-
BOS
1 stop14h 40m
Lufthansa
Sun 9/138:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/23$485
This Mytrip deal was found by Cheapflights users on 7/22. 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.
Sat 9/56:00 am
OPO
-
BOS
1 stop14h 40m
Lufthansa
Sat 9/128:05 pm
BOS
-
OPO
1 stop22h 20m
Lufthansa
Deal found 7/22$487
This Mytrip deal was found by Cheapflights users on 7/22. 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.
Fri 8/76:00 am
OPO
-
BOS
1 stop14h 40m
Lufthansa
Tue 8/1110:00 pm
BOS
-
OPO
1 stop19h 50m
Lufthansa
Deal found 7/22$489

Find 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 July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$477
(Finnair)

One-way from

$329
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$978

Good round-trip deal

$840 or less

Good one-way deal

$467 or less
Provider with most accurate pricing for Porto-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Boston Logan Intl flights.
Search Deals
From Porto to Boston Logan Intl
Search Deals
One-way flight from Porto to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($200 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Porto to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Porto to Boston Logan Intl.
Search Deals

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 July 24, 2026.
Use the filters below to find and compare flights from Porto to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 12/7

12:25 pm-8:00 pm

1 stop12h 35m

Boston Logan Intl

Mon 12/14

5:00 pm-7:40 am

1 stop9h 40m

$470

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 11/3

8:40 pm-3:30 pm

1 stop23h 50m

Boston Logan Intl

Tue 11/10

7:15 pm-5:45 pm

1 stop17h 30m

$488

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 9/5

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Mon 9/14

11:00 am-6:55 am

1 stop14h 55m

$504

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/19

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Wed 8/26

8:05 am-6:55 am

2 stops17h 50m

$506

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 8/18

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Sun 8/30

9:26 am-6:55 am

1 stop16h 29m

$506

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 8/7

6:00 am-8:10 pm

1 stop19h 10m

Boston Logan Intl

Tue 8/11

7:30 am-7:00 am

2 stops18h 30m

$508

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 10/2

6:00 am-8:10 pm

1 stop19h 10m

Boston Logan Intl

Mon 10/5

6:00 am-7:00 am

2 stops20h 00m

$509

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 10/1

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Mon 10/5

6:00 am-7:00 am

2 stops20h 00m

$509

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 12/16

6:00 am-1:45 pm

1 stop12h 45m

Boston Logan Intl

Wed 1/27

4:05 pm-3:20 pm

1 stop18h 15m

$510

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 12/1

6:00 am-1:45 pm

1 stop12h 45m

Boston Logan Intl

Sun 12/27

8:30 am-9:30 am

1 stop20h 00m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
SmartFaresPrice Accuracy1 starTrust Score*1 star
MytripPrice Accuracy2 starsTrust 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 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?

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 61 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, April is the cheapest month in which you can book a flight from Porto to Boston (average of $482). Flying from Porto to Boston in July is currently the most expensive (average of $978). 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 July 24, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Boston as you normally would.

How much does it cost to fly round-trip from Porto to Boston?

Airfare is below average for this route at the moment.

Porto to Boston flights typically cost between $857 and $980 in December.
The cheapest round-trip price found within the last 5 days was $470 on Finnair (Dec 7-Dec 14).

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 July 24, 2026.
Read through reviews of airlines operating flights from Porto to Boston, such as TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.2
Good
2,346 reviews

Comfort

7.1

Crew

7.8

Entertainment

6.4

Boarding

7.0

Overall

7.2

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
TAP AIR PORTUGAL
7.2
Good
2,346 reviews
TAP AIR PORTUGAL
7.2
Good
2,346 reviews

Comfort

7.1

Crew

7.8

Entertainment

6.4

Boarding

7.0

Overall

7.2

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.

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 12h 45m. United Airlines provides one of the quickest options available for as low as $509. Airlines will cover a distance of 3134 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Porto to Boston round-trip?

    Cheapflights users have booked flights from Porto to Boston round-trip from $486. You may be able to fly from Porto to Boston for 31% less than the average price by searching for this airline.

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

    $294 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on Azores Airlines and American Airlines, with prices starting from $334 and $386, respectively.

  • What are the cheapest flights from Porto to Boston?

    Looking at all options, your cheapest flight can be booked for $446. While the most popular route (Porto - Boston Logan Intl) can be booked for $482 on average, our data indicates $877 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, April is the cheapest month in which you can book a flight from Porto to Boston (average of $482). Flying from Porto to Boston in July is currently the most expensive (average of $978). 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
Waltham
Cambridge
Concord
Randolph
Brockton
Seekonk
Hampton Beach
Cranston
Dedham
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Sandwich

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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
Funchal to Boston flights
Lisbon to Albany flights
Lisbon to Hartford flights

Top airline flying from Porto to Boston

Discover the top airline 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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$486Average$801FlexibilityNo cancel feeOn-timeN/A

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