HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$196+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 December, 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 June 12, 2025.

Round-trip from

$481
(Kiwi.com)

One-way from

$196
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$721

Good round-trip deal

$694 or less

Good one-way deal

$393 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. 10% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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

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 June 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/291:40 pmOPO - BOS
1 stop12h 35mMultiple Airlines
Sun 9/711:00 pmBOS - OPO
2 stops26h 50mMultiple Airlines
Deal found 6/11$481
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Tue 7/89:05 pmOPO - BOS
1 stop25h 45mPLAY
Fri 7/257:15 pmBOS - OPO
1 stop19h 50mPLAY
Deal found 6/12$559
This British Airways deal was found by Cheapflights users on 6/11. 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.
Wed 8/278:15 amOPO - BOS
1 stop11h 45mBritish Airways
Mon 9/84:30 pmBOS - OPO
2 stops22h 20mBritish Airways
Deal found 6/11$568
This Iberia deal was found by Cheapflights users on 6/11. 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.
Tue 8/264:35 pmOPO - BOS
1 stop27h 25mIberia
Thu 9/49:20 pmBOS - OPO
1 stop17h 35mIberia
Deal found 6/11$578
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/2812:10 pmOPO - BOS
1 stop10h 50mUnited Airlines
Wed 9/39:43 amBOS - OPO
2 stops15h 22mUnited Airlines
Deal found 6/11$621
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Wed 8/276:00 amOPO - BOS
2 stops32h 30mAir Canada
Mon 9/86:30 pmBOS - OPO
2 stops36h 00mAir Canada
Deal found 6/11$630
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Wed 8/276:00 amOPO - BOS
1 stop14h 40mLufthansa
Fri 9/57:12 pmBOS - OPO
2 stops23h 08mLufthansa
Deal found 6/11$632
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Mon 9/16:05 pmOPO - BOS
Nonstop7h 40mTAP AIR PORTUGAL
Sat 9/611:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Deal found 6/11$678
This AirNGo deal was found by Cheapflights users on 6/10. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/156:35 amOPO - BOS
1 stop13h 30mKLM
Mon 6/236:26 pmBOS - OPO
1 stop11h 14mKLM
Deal found 6/10$683
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/812:20 pmOPO - BOS
1 stop12h 30mAmerican Airlines
Fri 7/251:26 pmBOS - OPO
2 stops13h 09mAmerican Airlines
Deal found 6/12$692
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 6/1611:25 amOPO - BOS
1 stop11h 55mDelta
Mon 6/238:15 pmBOS - OPO
1 stop14h 20mDelta
Deal found 6/11$704

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 June 12, 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 8/29

1:40 pm-9:15 pm

1 stop12h 35m

Boston Logan Intl

Sun 9/7

11:00 pm-6:50 am

2 stops26h 50m

$481

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 7/8

9:05 pm-5:50 pm

1 stop25h 45m

Boston Logan Intl

Fri 7/25

7:15 pm-8:05 pm

1 stop19h 50m

$559

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/27

8:15 am-3:00 pm

1 stop11h 45m

Boston Logan Intl

Mon 9/8

4:30 pm-7:50 pm

2 stops22h 20m

$568

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 8/26

4:35 pm-3:00 pm

1 stop27h 25m

Boston Logan Intl

Thu 9/4

9:20 pm-7:55 pm

1 stop17h 35m

$578

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 8/28

12:10 pm-6:00 pm

1 stop10h 50m

Boston Logan Intl

Wed 9/3

9:43 am-6:05 am

2 stops15h 22m

$621

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/27

6:00 am-9:30 am

2 stops32h 30m

Boston Logan Intl

Mon 9/8

6:30 pm-11:30 am

2 stops36h 00m

$630

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/27

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Fri 9/5

7:12 pm-11:20 pm

2 stops23h 08m

$632

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 9/1

6:05 pm-8:45 pm

Nonstop7h 40m

Boston Logan Intl

Sat 9/6

11:15 pm-10:55 am

Nonstop6h 40m

$678

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 7/8

12:20 pm-7:50 pm

1 stop12h 30m

Boston Logan Intl

Fri 7/25

1:26 pm-7:35 am

2 stops13h 09m

$692

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 7/22

6:35 am-1:35 pm

1 stop12h 00m

Boston Logan Intl

Sun 8/3

8:15 pm-3:35 pm

1 stop14h 20m

$810

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 19 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 June 9, 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 June is currently the most expensive (average of $306). 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 June 12, 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 26% 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 June 12, 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
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Azores Airlines
7.6
Good
66 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $559. Other airlines that can offer you cheap pricing are British Airways, from $568, and Iberia, from $578. You may be able to fly from Porto to Boston for 13% less than the average price by searching for these airlines.

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

    $348 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on TAP AIR PORTUGAL and Azores Airlines, with prices starting from $416 and $420, respectively.

  • What are the cheapest flights from Porto to Boston?

    Looking at all options, your cheapest flight can be booked for $380. While the most popular route (Porto - Boston Logan Intl) can be booked for $474 on average our data indicates $904 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 June is currently the most expensive (average of $306). 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
Cambridge
Medford
Watertown
Warwick
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

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
Lisbon to Hartford flights
Lisbon to Albany flights
Funchal to Boston 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$446Average$694FlexibilityNo cancel feeOn-timeN/A
Azores AirlinesCheapest$451Average$564FlexibilityNo cancel feeOn-time74%
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.