HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$310+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 February or October, booked 68 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$421
(Booking.com)

One-way from

$310
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$591

Good one-way deal

$439 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. 11% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 28, 2025.

This Booking.com deal was found by Cheapflights users on 3/27. 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.
Thu 5/159:10 pmOPO - BOS
1 stop25h 40mPLAY
Sat 5/247:15 pmBOS - OPO
1 stop19h 50mPLAY
Deal found 3/27$421
This Air France deal was found by Cheapflights users on 3/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/205:00 amOPO - BOS
1 stop13h 40mMultiple Airlines
Mon 4/287:20 pmBOS - OPO
1 stop15h 10mMultiple Airlines
Deal found 3/27$546
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Sat 5/175:40 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Sun 5/2510:55 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 3/27$547
This KLM deal was found by Cheapflights users on 3/27. 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.
Sat 5/176:55 pmOPO - BOS
1 stop26h 30mKLM
Sun 5/258:15 pmBOS - OPO
1 stop15h 30mKLM
Deal found 3/27$549
This Iberia deal was found by Cheapflights users on 3/27. 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.
Sat 5/178:15 amOPO - BOS
1 stop16h 35mIberia
Sun 5/254:30 pmBOS - OPO
1 stop14h 10mIberia
Deal found 3/27$556
This Delta deal was found by Cheapflights users on 3/27. 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.
Sun 4/205:00 amOPO - BOS
1 stop13h 40mDelta
Mon 4/287:00 pmBOS - OPO
2 stops15h 30mDelta
Deal found 3/27$561
This British Airways deal was found by Cheapflights users on 3/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/178:15 amOPO - BOS
1 stop16h 35mBritish Airways
Sun 5/257:25 amBOS - OPO
1 stop22h 25mBritish Airways
Deal found 3/27$573
This United Airlines deal was found by Cheapflights users on 3/27. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/112:10 pmOPO - BOS
1 stop13h 00mUnited Airlines
Mon 6/166:00 amBOS - OPO
1 stop22h 35mUnited Airlines
Deal found 3/27$611
This Lufthansa deal was found by Cheapflights users on 3/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/204:35 pmOPO - BOS
1 stop28h 25mLufthansa
Thu 5/18:05 pmBOS - OPO
1 stop22h 15mLufthansa
Deal found 3/27$615
This SWISS deal was found by Cheapflights users on 3/27. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/202:35 pmOPO - BOS
2 stops34h 20mSWISS
Wed 4/309:40 pmBOS - OPO
1 stop29h 15mSWISS
Deal found 3/27$632
This Brussels Airlines deal was found by Cheapflights users on 3/27. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2012:55 pmOPO - BOS
2 stops33h 45mBrussels Airlines
Sun 4/278:05 pmBOS - OPO
2 stops14h 55mBrussels Airlines
Deal found 3/27$661
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Sat 4/196:00 amOPO - BOS
2 stops40h 20mAir Canada
Mon 4/286:35 amBOS - OPO
2 stops23h 50mAir Canada
Deal found 3/27$665

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 March 28, 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

Thu 5/15

9:10 pm-5:50 pm

1 stop25h 40m

Boston Logan Intl

Sat 5/24

7:15 pm-8:05 pm

1 stop19h 50m

$421

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 4/20

5:00 am-1:40 pm

1 stop13h 40m

Boston Logan Intl

Mon 4/28

7:20 pm-3:30 pm

1 stop15h 10m

$546

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

5:40 pm-8:20 pm

Nonstop7h 40m

Boston Logan Intl

Sun 5/25

10:55 pm-10:35 am

Nonstop6h 40m

$547

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

6:55 pm-4:25 pm

1 stop26h 30m

Boston Logan Intl

Sun 5/25

8:15 pm-4:45 pm

1 stop15h 30m

$549

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

8:15 am-7:50 pm

1 stop16h 35m

Boston Logan Intl

Sun 5/25

4:30 pm-11:40 am

1 stop14h 10m

$556

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 4/20

5:00 am-1:40 pm

1 stop13h 40m

Boston Logan Intl

Mon 4/28

7:00 pm-3:30 pm

2 stops15h 30m

$561

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 5/17

8:15 am-7:50 pm

1 stop16h 35m

Boston Logan Intl

Sun 5/25

7:25 am-10:50 am

1 stop22h 25m

$573

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 6/1

12:10 pm-8:10 pm

1 stop13h 00m

Boston Logan Intl

Mon 6/16

6:00 am-9:35 am

1 stop22h 35m

$611

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 4/20

4:35 pm-4:00 pm

1 stop28h 25m

Boston Logan Intl

Thu 5/1

8:05 pm-11:20 pm

1 stop22h 15m

$615

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 4/20

2:35 pm-7:55 pm

2 stops34h 20m

Boston Logan Intl

Wed 4/30

9:40 pm-7:55 am

1 stop29h 15m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 28 results
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 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?

Use this chart to determine the optimal time to book a round-trip flight from Porto to Boston. Price data was last updated on March 21, 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 67 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 March 28, 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 23% on airfare.

Rainfall in Boston by month

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

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

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

If weather is an important factor for your trip to Boston, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 March 28, 2025.
Read through reviews of airlines operating flights from Porto to Boston, such as Delta, KLM and Azores Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $421. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $547, and KLM, from $549. You may be able to fly from Porto to Boston for 35% less than the average price by searching for these airlines.

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

    $333 is the cheapest one-way deal found within the past few days, from Azores Airlines. You may also be able to find cheap deals on PLAY and Vueling, with prices starting from $340 and $355, respectively.

  • What are the cheapest flights from Porto to Boston?

    Looking at all options, your cheapest flight can be booked for $356. While the most popular route (Porto - Boston Logan Intl) can be booked for $545 on average our data indicates $566 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Warwick
Marlborough
Waltham
Cambridge
Framingham
Chestnut Hill
Seekonk
Randolph
Brockton
Lowell
West Yarmouth
Woburn
Somerville
Saco
Burlington
Smithfield
Salem
Chelsea
Seabrook
Brookline

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 Albany flights
Lisbon to Hartford 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$446Average$702FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$451Average$616FlexibilityNo cancel feeOn-time74%
IberiaCheapest$475Average$614FlexibilityNo cancel feeOn-time77%
KLMCheapest$508Average$645FlexibilityNo 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.