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$321+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Porto to Boston Logan Intl are usually found in February or October, booked 79 days in advance, depart on a Monday or Thursday and return on a Tuesday

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 August 14, 2025.

Round-trip from

$450
(lol.travel)

One-way from

$321
(Iberia)

Popular in

July

Cheapest in

February

Average price

$795

Good one-way deal

$426 or less
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. 16% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 14, 2025.

This lol.travel deal was found by Cheapflights users on 8/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:05 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Mon 9/2211:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 8/12$450
This oojo deal was found by Cheapflights users on 8/13. 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.
Mon 9/156:05 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Sat 10/1111:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 8/13$464
This oojo deal was found by Cheapflights users on 8/12. 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.
Fri 9/1210:00 amOPO - BOS
1 stop15h 05mTAP AIR PORTUGAL
Wed 9/2411:05 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 8/12$482
This Mytrip deal was found by Cheapflights users on 8/12. 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.
Sun 9/75:45 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Sat 9/136:10 pmBOS - OPO
1 stop17h 50mTAP AIR PORTUGAL
Deal found 8/12$493
This oojo deal was found by Cheapflights users on 8/12. 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.
Wed 11/198:00 pmOPO - BOS
1 stop23h 35mTAP AIR PORTUGAL
Wed 1/146:05 pmBOS - OPO
1 stop19h 55mTAP AIR PORTUGAL
Deal found 8/12$496
This oojo deal was found by Cheapflights users on 8/12. 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 9/259:00 amOPO - BOS
1 stop10h 20mTAP AIR PORTUGAL
Thu 10/910:25 pmBOS - OPO
1 stop17h 00mTAP AIR PORTUGAL
Deal found 8/12$497
This Gotogate deal was found by Cheapflights users on 8/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:40 pmOPO - BOS
1 stop12h 25mMultiple Airlines
Sun 12/288:40 pmBOS - OPO
1 stop11h 10mMultiple Airlines
Deal found 8/14$517
This FlightHub deal was found by Cheapflights users on 8/12. 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.
Tue 11/189:00 amOPO - BOS
1 stop10h 35mTAP AIR PORTUGAL
Thu 1/156:05 pmBOS - OPO
1 stop10h 50mTAP AIR PORTUGAL
Deal found 8/12$521
This AirNGo deal was found by Cheapflights users on 8/13. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:05 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Mon 9/156:10 pmBOS - OPO
1 stop21h 15mTAP AIR PORTUGAL
Deal found 8/13$522

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 August 14, 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

Mon 9/15

6:05 pm-8:45 pm

Nonstop7h 40m

Boston Logan Intl

Mon 9/22

11:15 pm-10:55 am

Nonstop6h 40m

$450

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 9/15

6:05 pm-8:45 pm

Nonstop7h 40m

Boston Logan Intl

Sat 10/11

11:15 pm-10:55 am

Nonstop6h 40m

$464

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 9/28

9:15 pm-2:20 pm

1 stop22h 05m

Boston Logan Intl

Sun 10/5

10:55 pm-10:35 am

Nonstop6h 40m

$482

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 9/12

10:00 am-8:05 pm

1 stop15h 05m

Boston Logan Intl

Wed 9/24

11:05 pm-10:45 am

Nonstop6h 40m

$482

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 9/14

5:45 pm-8:25 pm

Nonstop7h 40m

Boston Logan Intl

Sat 9/20

6:10 pm-7:00 pm

1 stop19h 50m

$493

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 9/7

5:45 pm-8:25 pm

Nonstop7h 40m

Boston Logan Intl

Sat 9/13

6:10 pm-5:00 pm

1 stop17h 50m

$493

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 11/19

8:00 pm-2:35 pm

1 stop23h 35m

Boston Logan Intl

Wed 1/14

6:05 pm-7:00 pm

1 stop19h 55m

$496

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 9/25

9:00 am-2:20 pm

1 stop10h 20m

Boston Logan Intl

Thu 10/9

10:25 pm-8:25 pm

1 stop17h 00m

$497

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 10/15

10:00 pm-9:15 pm

1 stop28h 15m

$321

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 10/14

10:00 pm-9:15 pm

1 stop28h 15m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 14 results
1
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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 August 8, 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 78 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, January is the cheapest month in which you can book a flight from Porto to Boston (average of $218). Flying from Porto to Boston in July is currently the most expensive (average of $311). 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 August 14, 2025.

One of the essential ways to save on airfare from Porto to Boston is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 26% on airfare.

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

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 August 14, 2025.
Read through reviews of airlines operating flights from Porto to Boston, such as KLM, Azores Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,381 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Azores Airlines
7.5
Good
69 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Iberia
7.0
Good
2,878 reviews
KLM
7.8
Good
1,381 reviews

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

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

    Cheapflights users have booked flights from Porto to Boston round-trip from $308. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $446, and Iberia, from $475. You may be able to fly from Porto to Boston for 53% 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 $391. While the most popular route (Porto - Boston Logan Intl) can be booked for $450 on average our data indicates $543 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, January is the cheapest month in which you can book a flight from Porto to Boston (average of $218). Flying from Porto to Boston in July is currently the most expensive (average of $311). 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
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Hampton Beach
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Seabrook
Lowell
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Smithfield
Cranston
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Warwick
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Burlington
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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
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Lisbon to Albany flights

Top 4 airlines flying from Porto to Boston

Discover the top 4 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$308Average$557FlexibilityNo cancel feeOn-time74%
TAP AIR PORTUGALCheapest$446Average$694FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$475Average$614FlexibilityNo cancel feeOn-time77%
KLMCheapest$508Average$595FlexibilityNo cancel feeOn-time75%

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