Porto

$213+ Cheap flights from Boston (BOS) to Porto (OPO)

BOS — OPO
Nov 29 — Dec 61
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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

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Cheapflights Tip: The best prices from Boston Logan Intl to Porto are usually found in February or January, booked 87 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap flight deals from Boston to Porto

Cheapest flights from Boston to Porto

Sun 11/810:50 pm -
Nonstop6h 45m
Tue 11/175:45 pm -
Nonstop7h 45m
Deal found 10/29$579
Tue 12/810:45 pm -
Nonstop6h 45m
Tue 12/155:45 pm -
Nonstop7h 45m
Deal found 10/28$582
Tue 11/2410:45 pm -
Nonstop6h 45m
Tue 12/15:45 pm -
Nonstop7h 45m
Deal found 10/29$585
Wed 11/118:00 pm -
1 stop14h 15m
Sat 11/216:15 am -
1 stop17h 10m
Deal found 10/27$591
Fri 12/45:45 am -
2 stops32h 40m
Mon 12/79:00 pm -
2 stops21h 45m
Deal found 10/26$594
Sun 11/2910:50 pm -
Nonstop6h 45m
Sun 12/65:45 pm -
Nonstop7h 45m
Deal found 10/28$598
Fri 11/275:45 am -
2 stops32h 40m
Fri 12/49:45 pm -
2 stops25h 13m
Deal found 10/27$599

Find flight deals from Boston to Porto

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$578
(WAYA)

One-way from

$213
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$756

Good round-trip deal

$654 or less

Good one-way deal

$460 or less
Provider with most accurate pricing for Boston Logan Intl-Porto flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Porto flights.
From Boston Logan Intl to Porto
One-way flight from Boston Logan Intl to Porto
Highest demand for flights based on searches. 18% potential increase in price ($161 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in October 2026
Price to beat on a round-trip flight from Boston Logan Intl to Porto.
Price to beat on a one-way flight from Boston Logan Intl to Porto.

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Mon 11/16

10:10 pm-6:45 am

3 stops27h 35m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$320

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Sun 1/17

7:50 pm-6:45 am

3 stops29h 55m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$337

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Sun 2/21

6:00 pm-10:45 am

1 stop11h 45m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$363
Quickest round-trip

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 11/6

9:25 pm-11:50 am

1 stop9h 25m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$418

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Thu 12/31

5:45 am-9:30 am

2 stops22h 45m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$558

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 11/20

9:10 am-8:15 am

1 stop18h 05m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$634

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 11/20

5:30 am-9:30 am

2 stops23h 00m

Porto

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$634

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Wed 11/25

6:05 pm-9:30 am

1 stop10h 25m

Porto

Wed 12/2

1:45 pm-6:35 pm

1 stop33h 50m

$697

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Mon 11/9

3:41 pm-9:30 am

1 stop12h 49m

Porto

Wed 11/18

12:35 pm-10:19 am

2 stops26h 44m

$743

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 2/26

10:10 pm-1:30 pm

1 stop10h 20m

Porto

Wed 3/10

8:30 am-2:40 pm

1 stop11h 10m

$792

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Boston to Porto

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Porto in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Super.comPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 Boston-Porto flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Porto flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Boston-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Porto flights, Cheapflights users trust Ovago the most. Ovago 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 Boston-Porto 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 Boston to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boston to Porto

How far ahead should I book a flight from Boston to Porto?

To ensure you get the cheapest price possible for a flight from Boston to Porto, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Porto?

Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of $414). Flying from Boston to Porto in July is currently the most expensive (average of $935). 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 BOS to OPO?

When flying from Boston to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Boston to Porto?

Airfare is typical for this route at the moment.

Boston to Porto flights typically cost between $553 and $769 in April.
The cheapest round-trip price found within the last 5 days was $578 on Multiple Airlines (Apr 7-Apr 12).

Reviews of airlines servicing Porto

Read through reviews of airlines operating flights from Boston to Porto, such as United Airlines,TAP AIR PORTUGAL, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.3

Entertainment

7.1

Food

6.7

Reviews

1 / 20
8.0
Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

  • How popular is this Boston to Porto flight route?

  • How long is the flight from Boston to Porto?

    TAP AIR PORTUGAL can get you from Boston to Porto in just under 6h 45m. Your travel time will be generally consistent. The distance from Boston to Porto is about 3134 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Boston to Porto round-trip?

    According to our current data, Lufthansa ($360), LEVEL ($361), and Iberia ($375) offers the cheapest pricing from Boston to Porto. These flights start at 49% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $267 on Iberia. Other airlines that offer cheap prices include Azores Airlines from $277 and United Airlines from $278 one-way.

  • What are the cheapest flights from Boston to Porto?

    Looking at all options, your cheapest flight can be booked for $328. While the most popular route (Boston Logan Intl - Porto) can be booked for $492 on average, our data indicates $692 when flying from Boston to Porto.

  • Where are the most common layover locations when flying from Boston to Porto?

  • What are some popular things to do or see while on a layover in Lisbon?

    The majority of Lisbon visitors spend their time at Chiado, Commerce Square, and Praça do Marquês de Pombal. Travelers on a layover in Lisbon can visit Chiado, Commerce Square, and Praça do Marquês de Pombal, by traveling 4.5 mi, 4.7 mi, and 3.6 mi, respectively after landing at Lisbon Humberto Delgado. Travelers in need of a car in Lisbon can rent one for about $16 per day.

  • What are some popular points of interest to see during a layover in Madrid?

    Puerta del Sol, Plaza Mayor, and Spain Building are the most popular attractions in Madrid if you're in need of something to do during your layover. Puerta del Sol, Plaza Mayor, and Spain Building can be accessed by traveling approximately 8.4 mi, 8.6 mi, and 8.5 mi, respectively from Madrid Barajas. Those looking to explore during their layover in Madrid can rent a car from Madrid Barajas for about $27 per day.

  • Where are the least popular layover locations for Boston to Porto flights?

  • Can I find deals for flights from Boston to Porto that include hotel bookings?

    Yes. In addition to deals on Boston to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Porto.

  • Can I find deals for business class flights from Boston to Porto?

    Yes. Cheapflights offers flight deals from Boston to Porto 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 Boston to Porto?

    Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of $414). Flying from Boston to Porto in July is currently the most expensive (average of $935). 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
Vila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Boston to Porto

AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$360Average$589FlexibilityNo cancel feeOn-time76%
LEVELCheapest$361Average$813FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$375Average$718FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$375Average$846FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$376Average$677FlexibilityNo cancel feeOn-time69%
SWISSCheapest$387Average$696FlexibilityNo cancel feeOn-time79%
KLMCheapest$394Average$761FlexibilityNo cancel feeOn-time75%
DeltaCheapest$394Average$808FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$411Average$786FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$434Average$775FlexibilityNo cancel feeOn-time67%

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