OPO - BOS

$349 Find Cheap Flights from Porto to Boston - Compare and Save

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Everything you should know

Cheapest round-trip
$489
Typical prices: $560-$791
Multiple Airlines
Thu 12/6Thu 12/13
OPO - BOS • 2 stops
Cheapest non-stop
$630
Typical prices: $472-$934
TAP AIR PORTUGAL
Sat 12/1Sat 12/8
OPO - BOS • Non-stop
Nonstop flights
You can fly direct with TAP AIR PORTUGAL. Average duration is 7h 42m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 76% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 9 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $572 (round-trip)
Shortest trip • 9h 46m (one-way)
Insights
Insights
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We hope you love your trip to Boston!

Cheap Flights from Porto to Boston (OPO-BOS)

 

Cheap flights from Porto to Boston with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
8:20 am - 10:59 pmOPO  Porto-BOS Boston Logan Intl
19h 39m2 stops Madrid Barajas Philadelphia
Multiple Airlines Logo
8:00 am - 11:45 amBOS  Boston Logan Intl-OPO Porto
22h 45m2 stops Philadelphia Madrid Barajas
$489Multiple Airlines
Tue, Nov 24 - Tue, Dec 1
Iberia Logo
8:20 am - 6:25 pmOPO  Porto-BOS Boston Logan Intl
15h 05m1 stop Madrid Barajas
Iberia Logo
2:50 pm - 11:45 amBOS  Boston Logan Intl-OPO Porto
15h 55m2 stops Philadelphia Madrid Barajas
$494Iberia
Sun, Dec 6 - Sun, Dec 13
Iberia Logo
8:20 am - 10:59 pmOPO  Porto-BOS Boston Logan Intl
19h 39m2 stops Madrid Barajas Philadelphia
Iberia Logo
8:00 am - 11:45 amBOS  Boston Logan Intl-OPO Porto
22h 45m2 stops Philadelphia Madrid Barajas
$494Iberia
Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
8:20 am - 6:25 pmOPO  Porto-BOS Boston Logan Intl
15h 05m1 stop Madrid Barajas
Multiple Airlines Logo
2:50 pm - 11:45 amBOS  Boston Logan Intl-OPO Porto
15h 55m2 stops Philadelphia Madrid Barajas
$495Multiple Airlines
Sun, Dec 6 - Sun, Dec 13
Multiple Airlines Logo
8:20 am - 10:59 pmOPO  Porto-BOS Boston Logan Intl
19h 39m2 stops Madrid Barajas Philadelphia
Multiple Airlines Logo
8:00 am - 11:45 amBOS  Boston Logan Intl-OPO Porto
22h 45m2 stops Philadelphia Madrid Barajas
$496Multiple Airlines
Tue, Nov 24 - Tue, Dec 1
Iberia Logo
12:25 pm - 6:25 pmOPO  Porto-BOS Boston Logan Intl
11h 00m1 stop Madrid Barajas
Iberia Logo
8:00 pm - 11:45 amBOS  Boston Logan Intl-OPO Porto
10h 45m1 stop Madrid Barajas
$498Iberia
Tue, Dec 1 - Tue, Dec 8
TAP AIR PORTUGAL Logo
5:45 pm - 8:30 pmOPO  Porto-BOS Boston Logan Intl
7h 45mnonstop
TAP AIR PORTUGAL Logo
10:45 pm - 10:30 amBOS  Boston Logan Intl-OPO Porto
6h 45mnonstop
$630TAP AIR PORTUGAL
Sun, Dec 6 - Sun, Dec 13
TAP AIR PORTUGAL Logo
5:45 pm - 8:30 pmOPO  Porto-BOS Boston Logan Intl
7h 45mnonstop
TAP AIR PORTUGAL Logo
10:50 pm - 10:35 amBOS  Boston Logan Intl-OPO Porto
6h 45mnonstop
$636TAP AIR PORTUGAL
Sun, Jan 10 - Sun, Jan 17
Azores Airlines Logo
9:55 pm - 8:00 pmOPO  Porto-BOS Boston Logan Intl
27h 05m1 stop Ponta Delgada Nordela
Azores Airlines Logo
9:25 pm - 11:50 amBOS  Boston Logan Intl-OPO Porto
9h 25m1 stop Ponta Delgada Nordela
$654Azores Airlines
Fri, Nov 27 - Fri, Dec 4
Azores Airlines Logo
12:40 pm - 8:00 pmOPO  Porto-BOS Boston Logan Intl
12h 20m1 stop Ponta Delgada Nordela
Azores Airlines Logo
9:25 pm - 9:05 pmBOS  Boston Logan Intl-OPO Porto
18h 40m1 stop Ponta Delgada Nordela
$700Azores Airlines

Price, demand and travel trends for Porto to Boston flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Porto to Boston?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Porto to Boston. It’s 20% cheaper than the average day, while Sunday is the most expensive, with prices 16% higher.

What’s the cheapest month to fly from Porto to Boston?

•April is the cheapest month to fly from Porto to Boston at $472 round-trip.
•July ($978) and September ($832) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 107% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Porto to Boston the cheapest?

Flights from Porto to Boston are cheapest 9 weeks before departure. Booking in this window typically costs about 41% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice for your flight from Porto to Boston

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on TAP AIR PORTUGAL

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Gabriel Leigh

Gabriel Leigh

Expert on Azores Airlines

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Key details for Porto to Boston flights

Low season

June

Cheapest flight

$349
Beat the crowds with an average 48% drop in travelers.
The most popular month to fly with an average 65% increase in travelers.
One-way flight from Porto to Boston

When to book flights from Porto to Boston

Are your dates flexible? Find out the best times to travel from Porto to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Porto to Boston flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Porto to Boston?

    These are the earliest and latest flight times available from Porto to Boston:

    • Earliest: departs at 5:40 pm and lands at 1:22 am
    • Latest: departs at 6:00 pm and lands at 1:42 am.

    The flight takes about 7h 42m.

  • What cabin classes can I book on flights from Porto to Boston?

    Three cabin classes are available on flights from Porto to Boston:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Porto to Boston?

    A nonstop flight from Porto to Boston takes 7h 42m, covering 3,134 miles.

  • Do I need a passport to fly from Porto to Boston?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Porto to Boston flight?

    Round-trip flights from Porto to Boston range from $560 to $791, with an average of $680 over the past 12 months. Anything below $560 counts as a good deal.

  • How expensive are last-minute Porto to Boston flights?

    Last-minute fares on this route (booked within two weeks of departure) run 8% above the $680 route average. Book 9 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Porto to Boston?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $572 round-trip via Paris Charles de Gaulle (CDG), compared to $795 for nonstop.

  • How does on-time performance compare across airlines flying from Porto to Boston?

    TAP AIR PORTUGAL is the only airline operating Porto to Boston flights. 76% of its flights are on time.

  • What is the standard checked-bag allowance on flights from Porto to Boston?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $100–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Porto to Boston?

    The Airbus A321neo family is used most often on this route, operated mainly by TAP AIR PORTUGAL. Other aircraft seen on the route include Airbus A330-900neo variants.

  • How are flight prices from Porto to Boston looking right now?

    One-way fares from Porto to Boston are currently lower than usual. Average one-way flight prices are about $443, which is 17% below the typical average for this route.

  • What car rental options are available at Boston Logan Intl Airport (BOS)?

    Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Thrifty
    • Sixt

  • Which airports can I use when flying from Porto to Boston?

    Flights from Porto to Boston usually depart from Porto (OPO) and arrive at Boston Logan Intl (BOS).

  • What time of day has the fewest delays on flights from Porto to Boston?

    Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed from Porto to Boston?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Porto to Boston route, 24% of flights were delayed in the past 3 months, with delays averaging 2h 11m.

  • Which airports do connecting flights from Porto to Boston pass through?

    One-stop flights from Porto to Boston most commonly connect through:

    • Lisbon Humberto Delgado (LIS) - 37% of one-stop connections
    • Madrid Barajas (MAD) - 22% of one-stop connections
    • Amsterdam Schiphol (AMS) - 10% of one-stop connections
    • Newark (EWR) - 7% of one-stop connections

  • Can I save money by using flexible dates for flights from Porto to Boston?

    Yes. Flexible dates can save you up to 32% on flights from Porto to Boston. Wednesday is the cheapest departure day at $544 round-trip on average, while Sunday is the most expensive at $795, a difference of $251.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Porto to Boston?

    Only TAP AIR PORTUGAL operates flights between Porto and Boston.

  • How much time can I save by choosing a different layover airport from Porto to Boston?

    Flying via Lajes (TER) gives the shortest average 1-stop total travel time at 9h 46m, compared with 10h 30m via New York John F Kennedy Intl (JFK) and 10h 53m via Madrid Barajas (MAD).

  • What is the time difference between Porto and Boston?

    Boston is 5 hours behind Porto (Eastern Time vs Western European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Boston?

    Some of the most popular sights in Boston are TD Garden, Fenway Park and Boston Common. These are among the most viewed places in Boston on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Porto to Boston flights?

    Among airlines operating Porto to Boston flights:

    • TAP AIR PORTUGAL: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Porto to Boston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • TAP AIR PORTUGAL: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Porto to Boston flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $544, about $251 less than Sunday fares (32% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 9 weeks before you fly. On this route, that window historically saves about 41% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Porto to Boston trip for April. Fares historically average $472 round-trip in that month - typically $506 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Paris Charles de Gaulle Airport (CDG) can be cheaper than flying direct. The cheapest layover option averages $572 round-trip on this route - about $223 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boston Logan Intl Airport.

    • Hyatt Regency Boston Harbor
    • Hilton Boston Logan Airport
    • Hilton Garden Inn Boston Logan Airport

Prefer to fly direct from Porto to Boston?

 
Find which airlines fly direct from Porto Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Porto to Boston Logan Intl

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Direct returns

Boston Logan Intl to Porto

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

More options for your flight from Porto to Boston

Complete your trip to Boston with a hotel stay or car rental