Cheap flights from Boston (BOS) to Porto (OPO) from $249

This is the cheapest one-way flight price, found on 9/25. Prices may vary by date and flight preferences.
BOS — OPO
Oct 2 — Oct 91

The best prices from Boston Logan Intl to Porto are usually found in March or April, booked 53 days in advance, depart on a Wednesday or Monday and return on a Tuesday

How to find the cheapest flight from Boston (BOS) to Porto (OPO)

All the information you need to plan the best BOS to OPO flight in 2023: compare Boston to Porto flight prices with the expected peak season, weather and rainfall in Porto.

Popular in

December

Cheapest in

March

Round-trip from

$444

One-way from

$306
High demand for flights, 19% potential price rise
Best time to find cheap flights, 15% potential price drop
From Boston Logan Intl to Porto
One-way flight from Boston Logan Intl to Porto

BOS - OPO

Price

$444 - $1,232

OPO

Temperature

48.2 - 68 °F

OPO

Rainfall

0.7 - 7.7 inches

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

Thursday flights are generally found to be more expensive for flights from Boston to Porto. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Porto.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 53 days in advance, which can save you up to 23% on flights from Boston to Porto compared to booking the week you need them. Waiting 53 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $627. For sooner than that we have options available in the next 3 days from $640.

What is the cheapest month to fly from Boston to Porto?

March can be a great time to fly to Porto from Boston with a flight ticket averaging about $504. Cheapflights users have found deals in the month of March for as cheap as $260. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from Boston to Porto (BOS - OPO)?

It’s optimal to fly from Boston to Porto at noon. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the evening.

Cheap Iberia flights from Boston to Porto

Peruse some of the lowest-priced Iberia flights we've found from Boston to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Delta flights from Boston to Porto

Some of the best deals we've found on Delta flights traveling from Boston to Porto. Deals frequently update to provide users with more options.

Cheap Boston to Porto flights in September & October 2023

The best prices found for BOS to OPO flights for September, October
Check out some of the best flight deals from Boston to Porto in 2023. For more flight deals, be sure to check back very soon.

Boston to Porto 2023 flight deals

Cheap flights to Porto from Boston found for this year
Check out some of the best flight deals from Boston to Porto in 2023. For more flight deals, be sure to check back very soon.

Non-stop flights to Porto from Boston

Save time with Boston to Porto direct flight deals
Take a look at some of the direct flights traveling from Boston to Porto in the near future. Search for alternative flights from Boston to Porto by utilizing the search form above.

Boston to Porto flights leaving soon

Late deals on return flights to Porto from Boston, departing today and this week
Book one of these great deals on flights from Boston to Porto. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Porto from Boston

The cheapest one-way flights from Boston to Porto
Some of the best available deals we've found on one-way flights from Boston to Porto. Users in need of a round-trip flight from Boston to Porto instead should update the search form at the top of page.

Find flights from Boston to Porto within your budget

Use the slider to find flights from Boston to Porto that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$449 - $566

Route

Depart

Return

Price

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 12/7

1 stop16h 45m

Porto

Mon 12/11

2 stops28h 35m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 10/26

1 stop9h 20m

Porto

Thu 11/2

1 stop12h 10m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 10/22

2 stops17h 14m

Porto

Wed 10/25

1 stop31h 30m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 10/1

1 stop17h 10m

Porto

Fri 10/6

1 stop16h 55m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 11/8

1 stop15h 45m

Porto

Fri 12/1

1 stop12h 35m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 10/4

1 stop14h 10m

Porto

Wed 10/11

1 stop18h 30m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 10/26

1 stop16h 25m

Porto

Thu 11/16

2 stops15h 53m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/12

2 stops20h 35m

Porto

Wed 11/29

2 stops21h 29m

Boston Logan IntlPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Fri 11/3

Nonstop9h 30m

Porto

Sat 1/27

Nonstop12h 25m

Flights are sorted by cheapest first

Deals found on 9/26

Reviews of airlines servicing Porto

Get a feel of what it's like to fly with Iberia, Delta and SWISS from Boston to Porto by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Delta
7.9
Good
3,023 reviews
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Air France
7.6
Good
274 reviews
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

KLM
7.5
Good
196 reviews
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

SWISS
7.4
Good
456 reviews
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

United Airlines
7.4
Good
1,890 reviews
Delta
7.9
Good
3,023 reviews

Food

7.2

Comfort

7.9

Boarding

8.0

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

Useful info, stats and facts about Boston to Porto flights.

Can I find flights from Boston to Porto for under $500 on Cheapflights?

Yes, there are multiple flights from Boston to Porto for under $500. The cheapest flight booked recently is on Multiple Airlines for just $449, but on average you can expect to pay $509.

Are there nonstop flights from Boston to Porto for under $600 on Cheapflights?

Cheapflights has at least 1 direct flight from Boston to Porto under $600. A good price for a nonstop flight from Boston to Porto is less than $566.

Are there last-minute flights available from Boston to Porto for under $600?

There are currently 20+ open flights from Boston to Porto within the next 7 days for less than $600.

How popular is this Boston to Porto flight route?

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

According to our current data, Iberia ($504), American Airlines ($518), and Delta ($519) offers the cheapest pricing from Boston to Porto.

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 $255 on Azores Airlines. Other airlines that offer cheap prices include Vueling from $295 and SWISS from $306 one-way.

What are the most popular airlines that fly from Boston to Porto?

What are the cheapest flights from Boston to Porto?

Looking at all options, your cheapest flight can be booked for $256. While the most popular route (Boston Logan Intl - Porto) can be booked for $418 on average our data indicates $477 when flying from Boston to Porto.

What does BOS to OPO mean?

BOS stands for Boston Logan Intl Airport, while OPO stands for Porto Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Boston to Porto

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Lisbonfrom $346 pp

Top 10 airlines flying from Boston to Porto

The chart below displays the airlines Cheapflights users traveling from Boston to Porto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$352Average$814FlexibilityNo cancel feeOn-time88%
Search Vueling flights
TAP AIR PORTUGALCheapest$357Average$957FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest$405Average$721FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest$407Average$477FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest$411Average$474FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest$427Average$669FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest$444Average$503FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$451Average$933FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$459Average$726FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$462Average$691FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Porto?

Deals for Boston to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Boston to Porto?

Cheapflights helps you find that perfect flight to Porto from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Porto with no change fees?

Need flexible booking options for your flight to Porto from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Porto become cheaper?

Yes! Start tracking prices for Boston to Porto flights today and get alerted whenever prices for these flights change. To access this feature, navigate to the search form above to perform a search, which will then prompt you for a valid email address to use the tool.

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