BOS - OPO

C$ 486 Find Cheap Flights from Boston to Porto – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 871
Typical prices: C$ 815-C$ 1,330
United Airlines
Wed 28/2Sun 8/4
BOS - OPO • 2 stops
Cheapest direct flights
C$ 1,010
Typical prices: C$ 970-C$ 1,436
TAP AIR PORTUGAL
Thu 25/10Thu 15/11
BOS - OPO • Direct
Direct flights
You can fly direct with TAP AIR PORTUGAL. Average duration is 6h 40m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 92% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 47% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 604 (round-trip)
Shortest trip • 9h 45m (one-way)
Insights
Insights
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We hope you enjoy your trip to Porto!
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Flight Deals

Cheap Flights from Boston to Porto (BOS-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Porto

Sun, 28 Feb - Thu, 8 Apr
United Airlines Logo
6:00 a.m. - 9:30 a.m.BOS  Boston Logan Intl-OPO Porto
22h 30m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
12:35 p.m. - 6:13 p.m.OPO  Porto-BOS Boston Logan Intl
10h 38m1 stop Newark
C$ 871United Airlines
Sun, 28 Feb - Wed, 7 Apr
United Airlines Logo
8:30 a.m. - 9:30 a.m.BOS  Boston Logan Intl-OPO Porto
20h 00m1 stop Newark
United Airlines Logo
6:00 a.m. - 3:40 p.m.OPO  Porto-BOS Boston Logan Intl
14h 40m1 stop Frankfurt am Main
C$ 875United Airlines
Thu, 15 Oct - Mon, 2 Nov
Delta Logo
1:35 p.m. - 8:30 a.m.BOS  Boston Logan Intl-OPO Porto
13h 55m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
10:15 a.m. - 11:05 p.m.OPO  Porto-BOS Boston Logan Intl
17h 50m1 stop New York John F Kennedy Intl
C$ 877Delta
Sun, 18 Oct - Fri, 30 Oct
Delta Logo
5:06 p.m. - 10:25 a.m.BOS  Boston Logan Intl-OPO Porto
12h 19m1 stop New York John F Kennedy Intl
Delta Logo
5:00 a.m. - 11:15 a.m.OPO  Porto-BOS Boston Logan Intl
34h 15m2 stops Amsterdam Schiphol New York John F Kennedy Intl
C$ 878Delta
Tue, 20 Oct - Tue, 27 Oct
United Airlines Logo
3:35 p.m. - 7:00 a.m.BOS  Boston Logan Intl-OPO Porto
10h 25m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:00 a.m. - 2:32 p.m.OPO  Porto-BOS Boston Logan Intl
36h 32m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
C$ 879United Airlines
Mon, 12 Oct - Wed, 28 Oct
United Airlines Logo
8:25 p.m. - 9:45 a.m.BOS  Boston Logan Intl-OPO Porto
32h 20m1 stop Newark
United Airlines Logo
6:00 a.m. - 2:45 p.m.OPO  Porto-BOS Boston Logan Intl
12h 45m1 stop Frankfurt am Main
C$ 881United Airlines
Sun, 11 Oct - Tue, 3 Nov
Delta Logo
9:45 p.m. - 10:00 p.m.BOS  Boston Logan Intl-OPO Porto
19h 15m1 stop Paris Charles de Gaulle
Delta Logo
5:55 a.m. - 2:29 p.m.OPO  Porto-BOS Boston Logan Intl
13h 34m1 stop Paris Charles de Gaulle
C$ 882Delta
Mon, 14 Dec - Fri, 15 Jan
United Airlines Logo
5:45 a.m. - 9:30 a.m.BOS  Boston Logan Intl-OPO Porto
22h 45m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
6:00 a.m. - 2:18 p.m.OPO  Porto-BOS Boston Logan Intl
37h 18m2 stops Frankfurt am Main Toronto Pearson Intl
C$ 884United Airlines
Mon, 2 Nov - Sun, 8 Nov
United Airlines Logo
3:30 p.m. - 3:30 p.m.BOS  Boston Logan Intl-OPO Porto
19h 00m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
United Airlines Logo
6:00 a.m. - 1:45 p.m.OPO  Porto-BOS Boston Logan Intl
12h 45m1 stop Frankfurt am Main
C$ 886United Airlines
Mon, 19 Oct - Wed, 28 Oct
United Airlines Logo
5:50 a.m. - 6:50 a.m.BOS  Boston Logan Intl-OPO Porto
20h 00m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:00 a.m. - 9:20 p.m.OPO  Porto-BOS Boston Logan Intl
19h 20m2 stops Frankfurt am Main Zurich
C$ 889United Airlines
Booking Insights

Price, demand, and travel trends for Boston to Porto flights

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

How much is a round-trip flight from Boston to Porto?

Round-trip flights from Boston to Porto start at C$ 871. Prices are typical for this route right now, with typical round-trip fares ranging from C$ 815 to C$ 1,330. The lowest price found in the past 5 days was C$ 871 on United Airlines.

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

Thursday is the cheapest day of the week to fly from Boston to Porto and is 8% cheaper than the average day. Saturday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•February is the cheapest month to fly from Boston to Porto at C$ 553 round-trip.
•June (C$ 1,299) and July (C$ 1,297) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 134% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Boston to Porto the cheapest?

Flights from Boston to Porto are cheapest 15 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Boston to Porto

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

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.

Key details for Boston to Porto flights

Low season

January

Cheapest flight

C$ 517
Best time to beat the crowds (41% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flights from Boston to Porto

When to book flights from Boston to Porto

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

Your Boston to Porto flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

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

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

    • Earliest: departs at 10:45 pm and lands at 5:25 am
    • Latest: departs at 11:50 pm and lands at 6:30 am.

    The flight takes about 6h 40m.

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

    Only Economy Class is available on flights from Boston to Porto.

  • How long does a flight from Boston to Porto take?

    A direct flight from Boston to Porto takes 6h 40m, covering 8,117 km.

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

    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 Boston to Porto flight?

    Round-trip flights from Boston to Porto range from C$ 815 to C$ 1,330, with an average of C$ 1,054 over the past 12 months. Anything below C$ 815 counts as a good deal.

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

    Last-minute fares on this route – booked within 2 weeks of departure – run 6% above the route average of C$ 1,054. Book 15 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 604 round-trip via Kastrup Copenhagen (CPH), compared to C$ 1,156 for direct.

  • How does TAP AIR PORTUGAL's on-time performance compare to other airlines on Boston to Porto flights?

    TAP AIR PORTUGAL is the only airline operating Boston to Porto flights. 92% of its flights are on time.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 82–C$ 140 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 Boston to Porto?

    The Airbus A321neo family is used most often on this route, operated mainly by TAP AIR PORTUGAL and JetBlue. Other aircraft seen on the route include Airbus A350-900 variants.

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

    One-way fares from Boston to Porto are currently in line with typical prices for this route. Average one-way fares are about C$ 590.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around C$ 2 for economy cars. Top options include:
    • Klass Wagen
    • Drive on Holiday
    • GREEN MOTION
    • Goldcar Rental SP
    • SURPRICE CAR RENTAL

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

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

  • How do delay rates compare for morning and evening flights from Boston to Porto?

    Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

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

    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 Boston to Porto route, 8% of flights were delayed in the past 3 months, with delays averaging 2 hours 35 minutes.

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

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

    • Lisbon Humberto Delgado (LIS) – 40% of one-stop connections
    • Madrid Barajas (MAD) – 18% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 14% of one-stop connections
    • Barcelona-El Prat (BCN) – 6% of one-stop connections

    Lisbon Humberto Delgado (LIS) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 12% on the Boston to Porto route. Thursday is the cheapest departure day at C$ 974 round-trip on average, while Saturday is the most expensive at C$ 1,106, a difference of C$ 132. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines are available on the route from Boston to Porto?

    Only TAP AIR PORTUGAL operates flights between Boston and Porto.

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

    Flying via Lajes (TER) gives the shortest average 1-stop total travel time at 9h 45m, compared with 11h 00m via Newark (EWR) and 11h 07m via Montreal Pierre Elliott Trudeau Intl (YUL).

  • What is the time difference between Boston and Porto?

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

  • Which popular places can I visit in Porto?

    Some of the most popular sights in Porto are Palacio de Sao Joao Novo and Liberdade Square. These are among the most viewed places in Porto on KAYAK.

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

    Among airlines operating Boston to Porto 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 Boston to Porto flights?

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

    • TAP AIR PORTUGAL: a carry-on bag and a checked bag in Economy Class

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

  • What amenities/services are offered at the Boston Logan International Airport (BOS)?

    The Boston Airport has everything that a passenger could need. There are ATM machines for money withdrawal, shoe shine services, a spa where you can enjoy beauty and massage services, airline lounges, and hydration stations.

  • Where can I eat while I'm waiting on my plane to leave these airports?

    At the Porto Airport (OPO), there are several places to eat including a sushi bar, a pasta restaurant, and a delicatessen. There is also a Burger King at this airport. While you're at the Boston Logan International Airport, you can enjoy dining at Friendly's Restaurant, a Sbarro Italian Kitchen, and a Potbelly Sandwich Shop.

  • How do I get from the Porto Airport (OPO) to the city?

    There are a few ways that you can get to your hotel. Whether you're staying downtown or in a nearby beach town, there is a travel option. The Metro stops at most of the major neighborhoods in Porto. If you'd prefer, you can take a bus to the city. There are also several private shuttles and taxis that operate out of the airport.

  • Where can I park my car at the Boston Logan International Airport (BOS)?

    While you're away in Porto, you can be confident that your car will be safe at the Boston Airport. Some of your parking options include covered parking in one of its garages. If you're looking to save money, you can opt for the economy garage. It is a little distance from the airport but provides a complimentary shuttle service. Uncovered parking in one of the terminal lots is also possible.

Your guide to booking Boston to Porto 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 Thursday departure instead of Saturday. On this route, Thursday flights average C$ 974 – about C$ 132 less than Saturday (12% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 25% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Porto trip for February. Fares historically average C$ 553 round-trip in that month – typically C$ 746 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Kastrup Copenhagen Airport (CPH) can be cheaper than flying direct. The cheapest layover option averages C$ 604 round-trip on this route – about C$ 552 less than direct flights (based on the last 12 months).
  • Francisco Sá Carneiro Airport (OPO), (casually known as Porto Airport), is about 13min from the center of Porto, Portugal. It is also close to other tourist towns such as Mindelo, Apúlia, and the beach town of Lavra.
  • On your flight from Boston Logan International Airport (BOS) to Porto Airport (OPO), you'll change planes and have a layover in Paris, Lisbon, Madrid, Zurich, Frankfurt, or another city. Your layover could be less than an hour or over 23h.
  • If you have a real early flight or you're driving to Boston to fly to Porto, you can stay the night at the Boston Airport. Booking a room at the airport's Hilton Hotel will make it convenient to catch your flight. Some amenities offered at this hotel include on-site dining, a business center, an indoor pool, and a fitness center.
  • Rent a car at the Porto Airport (OPO) to tour Northern Portugal. Some of the car rental agencies with offices at this airport include Avis, Alamo, Budget, and Europcar. They are located in the pre-security area of the airport.
  • The Boston Logan International Airport (BOS) is quite large and busy. Therefore, it can be quite a bit of walking if you're going from one side of the airport to the other. If you don't want to walk, there is a free shuttle. Along with the terminals, the shuttle stops at the parking lots and the rental car center. It also provides access to public transportation.

Prefer to fly direct from Boston to Porto?

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

Direct departures

Boston Logan Intl to Porto

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more nonstop flights

Direct returns

Porto to Boston Logan Intl

Monday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Wednesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Saturday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more nonstop flights

More options for your flight from Boston to Porto

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