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$334+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BOS
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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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”

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Cheapflights Tip: The best prices from Porto to Boston Logan Intl are usually found in April or October, booked 62 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap 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 April 10, 2026.

This Ticket deal was found by Cheapflights users on 4/6. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:10 pm
OPO
-
BOS
1 stop26h 15m
KLM
Thu 5/285:05 pm
BOS
-
OPO
1 stop12h 25m
KLM
Deal found 4/6$465
This KLM deal was found by Cheapflights users on 4/7. 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.
Tue 4/216:50 pm
OPO
-
BOS
1 stop26h 35m
KLM
Tue 5/59:45 pm
BOS
-
OPO
1 stop19h 20m
KLM
Deal found 4/7$508
This Delta deal was found by Cheapflights users on 4/7. 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.
Wed 5/65:00 am
OPO
-
BOS
1 stop16h 25m
Delta
Wed 5/271:29 pm
BOS
-
OPO
1 stop16h 01m
Delta
Deal found 4/7$512
This KLM deal was found by Cheapflights users on 4/6. 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 4/297:10 pm
OPO
-
BOS
1 stop23h 03m
KLM
Mon 5/118:25 pm
BOS
-
OPO
1 stop14h 05m
KLM
Deal found 4/6$514
This Air France deal was found by Cheapflights users on 4/7. 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.
Tue 5/55:00 am
OPO
-
BOS
1 stop16h 25m
Multiple Airlines
Thu 5/285:05 pm
BOS
-
OPO
1 stop12h 25m
Multiple Airlines
Deal found 4/7$516
This Delta deal was found by Cheapflights users on 4/6. 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.
Thu 5/2111:25 am
OPO
-
BOS
2 stops17h 12m
Delta
Thu 5/285:05 pm
BOS
-
OPO
1 stop12h 25m
Delta
Deal found 4/6$517
This Delta deal was found by Cheapflights users on 4/7. 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.
Thu 5/75:00 am
OPO
-
BOS
2 stops16h 00m
Delta
Thu 5/281:29 pm
BOS
-
OPO
1 stop16h 01m
Delta
Deal found 4/7$518
This Iberia deal was found by Cheapflights users on 4/7. 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.
Fri 5/88:35 am
OPO
-
BOS
1 stop17h 30m
Iberia
Thu 5/2810:50 pm
BOS
-
OPO
1 stop17h 30m
Iberia
Deal found 4/7$538

Find 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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$465
(Ticket)

One-way from

$334
(Iberia)

Popular in

July

Cheapest in

April

Average price

$490

Good one-way deal

$486 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. 17% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Porto to Boston Logan Intl.
Search Deals

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 April 10, 2026.
Use the filters below to find and compare flights from Porto to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 5/3

5:00 am-6:30 pm

1 stop18h 30m

Boston Logan Intl

Sat 5/9

9:45 pm-10:00 pm

1 stop19h 15m

$608

PortoBoston

OPO - BOS

OPOBOS

Porto

Tue 4/21

11:30 am-11:07 pm

2 stops16h 37m

Boston Logan Intl

Tue 5/5

4:35 pm-3:30 pm

1 stop17h 55m

$646

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 4/29

11:45 am-6:30 pm

1 stop11h 45m

Boston Logan Intl

Sat 6/6

5:25 pm-10:20 am

1 stop11h 55m

$650

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 8/26

8:25 am-8:55 pm

1 stop17h 30m

Boston Logan Intl

Wed 9/23

6:35 pm-11:55 am

1 stop12h 20m

$652

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 5/3

10:00 pm-9:05 pm

1 stop28h 05m

Boston Logan Intl

Thu 5/7

10:50 pm-8:00 am

1 stop28h 10m

$724

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 5/24

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Sun 5/31

5:46 pm-9:45 am

1 stop10h 59m

$753

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 5/3

6:00 am-3:40 pm

1 stop14h 40m

Boston Logan Intl

Sat 5/9

5:45 pm-3:45 pm

1 stop17h 00m

$775

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 4/29

6:00 am-6:19 pm

2 stops17h 19m

Boston Logan Intl

Sat 6/6

6:50 pm-7:00 am

1 stop31h 10m

$776

PortoBoston

OPO - BOS

OPOBOS

Porto

Sun 5/3

12:10 pm-2:47 pm

2 stops31h 37m

Boston Logan Intl

Sat 5/9

6:50 pm-12:00 pm

2 stops36h 10m

$858
Quickest round-trip

PortoBoston

OPO - BOS

OPOBOS

Porto

Wed 5/6

6:00 pm-8:20 pm

Nonstop7h 20m

Boston Logan Intl

Sun 5/10

11:00 pm-10:30 am

Nonstop6h 30m

$872

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 23 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
oojoPrice Accuracy3 starsTrust 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 April 3, 2026.

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 62 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, April is the cheapest month in which you can book a flight from Porto to Boston (average of $320). Flying from Porto to Boston in July is currently the most expensive (average of $709). 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.

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 April 10, 2026.
Read through reviews of airlines operating flights from Porto to Boston, such as TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.1
Good
2,196 reviews

Boarding

7.0

Comfort

7.1

Entertainment

6.3

Crew

7.8

Overall

7.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification
TAP AIR PORTUGAL
7.1
Good
2,196 reviews
TAP AIR PORTUGAL
7.1
Good
2,196 reviews

Boarding

7.0

Comfort

7.1

Entertainment

6.3

Crew

7.8

Overall

7.1

Food

6.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LIS - EWR

Both flights returning to newirk airport was delayed by over a hour with minimum early notification

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 popular is this Porto to Boston flight route?

    Flights from Porto to Boston Logan Intl have been viewed 1 times in the past calendar month.

  • How long is the flight from Porto to Boston?

    A quick flight from Porto to Boston can take about 16h 37m. KLM provides one of the quickest options available for as low as $646. Airlines will cover a distance of 3134 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Porto to Boston round-trip?

    Cheapflights users have booked flights from Porto to Boston round-trip from $486. You may be able to fly from Porto to Boston for 28% less than the average price by searching for this airline.

  • 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 Iberia and TAP AIR PORTUGAL, with prices starting from $368 and $384, respectively.

  • What are the cheapest flights from Porto to Boston?

    Looking at all options, your cheapest flight can be booked for $447. While the most popular route (Porto - Boston Logan Intl) can be booked for $613 on average, our data indicates $608 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, April is the cheapest month in which you can book a flight from Porto to Boston (average of $320). Flying from Porto to Boston in July is currently the most expensive (average of $709). 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
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Seabrook
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Waltham
Lowell

Browse thousands of different options on Cheapflights for your next trip

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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
Funchal to Boston flights
Lisbon to Albany flights
Lisbon to Hartford flights

Top airline flying from Porto to Boston

Discover the top airline 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 April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$486Average$786FlexibilityNo cancel feeOn-timeN/A

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