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$287+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 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 July 2, 2025.

Round-trip from

$470
(Kiwi.com)

One-way from

$287
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$770

Good round-trip deal

$677 or less

Good one-way deal

$427 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. 11% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Porto to Boston Logan Intl.
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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 July 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/1. 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 12/19:55 pmOPO - BOS
1 stop28h 00mMultiple Airlines
Sun 12/710:40 pmBOS - OPO
1 stop28h 30mMultiple Airlines
Deal found 7/1$470
This Gotogate deal was found by Cheapflights users on 7/2. 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.
Fri 10/318:05 pmOPO - BOS
1 stop23h 25mTAP AIR PORTUGAL
Mon 11/176:05 pmBOS - OPO
1 stop22h 55mTAP AIR PORTUGAL
Deal found 7/2$497
This ResecentrumGruppen deal was found by Cheapflights users on 7/2. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amOPO - BOS
1 stop12h 25mLufthansa
Wed 11/122:21 pmBOS - OPO
2 stops17h 49mLufthansa
Deal found 7/2$567
This ResecentrumGruppen deal was found by Cheapflights users on 7/2. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:25 pmOPO - BOS
1 stop29h 00mKLM
Sun 8/318:15 pmBOS - OPO
1 stop21h 00mKLM
Deal found 7/2$608
This Lufthansa deal was found by Cheapflights users on 7/2. 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 11/1912:10 pmOPO - BOS
1 stop13h 10mSWISS
Tue 3/2410:55 pmBOS - OPO
1 stop15h 35mSWISS
Deal found 7/2$610
This Booking.com deal was found by Cheapflights users on 7/2. 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 11/66:00 amOPO - BOS
2 stops21h 37mAir Canada
Wed 11/1210:35 amBOS - OPO
2 stops19h 40mAir Canada
Deal found 7/2$615
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/48:15 amOPO - BOS
1 stop11h 45mAmerican Airlines
Fri 9/121:00 pmBOS - OPO
2 stops13h 35mAmerican Airlines
Deal found 7/1$620
This United Airlines deal was found by Cheapflights users on 7/1. 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 9/46:00 amOPO - BOS
1 stop14h 55mUnited Airlines
Fri 9/129:05 amBOS - OPO
1 stop16h 45mUnited Airlines
Deal found 7/1$629
This Delta deal was found by Cheapflights users on 7/1. 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 8/256:30 amOPO - BOS
1 stop15h 05mDelta
Mon 9/14:50 pmBOS - OPO
1 stop17h 45mDelta
Deal found 7/1$650
This PLAY deal was found by Cheapflights users on 6/30. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/29:05 pmOPO - BOS
1 stop25h 45mPLAY
Sat 9/137:15 pmBOS - OPO
1 stop19h 50mPLAY
Deal found 6/30$679

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 2, 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 12/1

9:55 pm-8:55 pm

1 stop28h 00m

Boston Logan Intl

Sun 12/7

10:40 pm-8:10 am

1 stop28h 30m

$470

PortoBoston

OPO - BOS

OPOBOS

Porto

Fri 10/31

8:05 pm-3:30 pm

1 stop23h 25m

Boston Logan Intl

Mon 11/17

6:05 pm-10:00 pm

1 stop22h 55m

$497

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 11/6

6:00 am-1:25 pm

1 stop12h 25m

Boston Logan Intl

Wed 11/12

2:21 pm-1:10 pm

2 stops17h 49m

$567

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 8/25

6:25 pm-6:25 pm

1 stop29h 00m

Boston Logan Intl

Sun 8/31

8:15 pm-10:15 pm

1 stop21h 00m

$608

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 11/19

12:10 pm-8:20 pm

1 stop13h 10m

Boston Logan Intl

Tue 3/24

10:55 pm-6:30 pm

1 stop15h 35m

$610

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 11/6

6:00 am-10:37 pm

2 stops21h 37m

Boston Logan Intl

Wed 11/12

10:35 am-11:15 am

2 stops19h 40m

$615

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 9/4

8:15 am-3:00 pm

1 stop11h 45m

Boston Logan Intl

Fri 9/12

1:00 pm-7:35 am

2 stops13h 35m

$620

PortoBoston

OPO - BOS

OPOBOS

Porto

Thu 9/4

6:00 am-3:55 pm

1 stop14h 55m

Boston Logan Intl

Fri 9/12

9:05 am-6:50 am

1 stop16h 45m

$629

PortoBoston

OPO - BOS

OPOBOS

Porto

Mon 8/25

6:30 am-4:35 pm

1 stop15h 05m

Boston Logan Intl

Mon 9/1

4:50 pm-3:35 pm

1 stop17h 45m

$650

PortoBoston

OPO - BOS

OPOBOS

Porto

Sat 8/2

9:05 pm-5:50 pm

1 stop25h 45m

Boston Logan Intl

Sat 9/13

7:15 pm-8:05 pm

1 stop19h 50m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 13 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 June 27, 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 July 2, 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.

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 July 2, 2025.
Read through reviews of airlines operating flights from Porto to Boston, such as Delta, KLM, and Azores Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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
1,366 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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
8,861 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

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 $497. Other airlines that can offer you cheap pricing are Lufthansa, from $567, and KLM, from $608. You may be able to fly from Porto to Boston for 23% 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 $381. While the most popular route (Porto - Boston Logan Intl) can be booked for $470 on average our data indicates $602 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
Seabrook
Waltham
Framingham
Cranston
Randolph
Chestnut Hill
Chelsea
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea
Lincoln
Quincy

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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.
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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$308Average$564FlexibilityNo cancel feeOn-time74%
KLMCheapest$508Average$645FlexibilityNo cancel feeOn-time75%
TAP AIR PORTUGALCheapest$559Average$695FlexibilityNo cancel feeOn-timeN/A

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