HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$426+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Porto to Boston Logan Intl are usually found in October or February, booked 79 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 September 11, 2025.

Round-trip from

$449
(Kiwi.com)

One-way from

$426
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$619

Good one-way deal

$440 or less
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. 16% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a one-way flight from Porto to Boston Logan Intl.
Search Deals

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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/2210:00 pmOPO - BOS
1 stop28h 15mMultiple Airlines
Mon 10/2711:40 pmBOS - OPO
1 stop28h 30mMultiple Airlines
Deal found 9/10$449
This oojo deal was found by Cheapflights users on 9/10. 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 10/226:10 pmOPO - BOS
Nonstop7h 35mTAP AIR PORTUGAL
Mon 10/277:05 pmBOS - OPO
1 stop14h 00mTAP AIR PORTUGAL
Deal found 9/10$486
This Gotogate deal was found by Cheapflights users on 9/10. 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.
Sun 12/145:00 amOPO - BOS
1 stop20h 10mTAP AIR PORTUGAL
Sun 1/410:45 pmBOS - OPO
1 stop14h 20mTAP AIR PORTUGAL
Deal found 9/10$494
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/124:00 pmOPO - BOS
1 stop27h 20mTAP AIR PORTUGAL
Sat 10/1811:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 9/10$539
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Wed 12/178:20 amOPO - BOS
1 stop16h 30mIberia
Fri 1/239:20 pmBOS - OPO
1 stop9h 25mIberia
Deal found 9/10$576
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/258:15 amOPO - BOS
1 stop11h 45mAmerican Airlines
Thu 10/91:01 pmBOS - OPO
2 stops13h 34mAmerican Airlines
Deal found 9/10$582
This KLM deal was found by Cheapflights users on 9/10. 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.
Wed 9/178:10 pmOPO - BOS
1 stop25h 20mKLM
Tue 9/305:20 pmBOS - OPO
1 stop17h 10mKLM
Deal found 9/10$586
This Iberia deal was found by Cheapflights users on 9/10. 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.
Mon 9/224:35 pmOPO - BOS
1 stop27h 25mIberia
Sun 9/2811:00 pmBOS - OPO
1 stop28h 00mIberia
Deal found 9/10$594

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 September 11, 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

Wed 10/22

10:00 pm-9:15 pm

1 stop28h 15m

Boston Logan Intl

Mon 10/27

11:40 pm-8:10 am

1 stop28h 30m

$449

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 11/25

8:45 am-8:55 pm

1 stop17h 10m

Boston Logan Intl

Mon 1/12

10:40 pm-8:10 am

1 stop28h 30m

$456

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 10/22

6:10 pm-8:45 pm

Nonstop7h 35m

Boston Logan Intl

Mon 10/27

7:05 pm-1:05 pm

1 stop14h 00m

$486

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 1/12

8:45 am-8:55 pm

1 stop17h 10m

Boston Logan Intl

Tue 1/20

1:06 pm-7:40 am

2 stops13h 34m

$574

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 11/23

12:25 pm-10:47 pm

2 stops15h 22m

Boston Logan Intl

Tue 1/13

10:40 pm-9:15 pm

1 stop17h 35m

$575

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 12/17

8:20 am-7:50 pm

1 stop16h 30m

Boston Logan Intl

Fri 1/23

9:20 pm-11:45 am

1 stop9h 25m

$576

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 12/14

8:20 am-7:50 pm

1 stop16h 30m

Boston Logan Intl

Tue 1/6

10:40 pm-9:15 pm

1 stop17h 35m

$577

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 9/25

8:15 am-3:00 pm

1 stop11h 45m

Boston Logan Intl

Thu 10/9

1:01 pm-7:35 am

2 stops13h 34m

$582

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 10/8

10:40 pm-7:50 pm

3 stops26h 10m

$426

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 10/15

6:10 pm-8:45 pm

Nonstop7h 35m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 15 results
1
2

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 29, 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 September 11, 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.

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 September 11, 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
1,385 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Azores Airlines
7.5
Good
73 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
TAP AIR PORTUGAL
7.1
Good
1,977 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.8

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 long is the flight from Porto to Boston?

    A quick flight from Porto to Boston can take about 7h 35m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $486. 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 $308. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $495, and KLM, from $508. 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 $420. While the most popular route (Porto - Boston Logan Intl) can be booked for $449 on average, our data indicates $481 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
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Chelsea
Warwick
Peabody
Quincy
York Beach
Swansea
Waltham
Saugus
Burlington

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Hartford flights
Lisbon to Albany flights

Top 3 airlines flying from Porto to Boston

Discover the top 3 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$308Average$557FlexibilityNo cancel feeOn-time74%
TAP AIR PORTUGALCheapest$495Average$687FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$508Average$595FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.