BOS - OPO

£255 Find Cheap Flights from Boston to Porto – Compare and Save

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Everything you should know

Cheapest return flight
£463
Typical prices: £459-£727
Scandinavian Airlines
Wed 28/2Mon 26/3
BOS - OPO • 1 stop
Cheapest direct flights
£566
Typical prices: £521-£777
TAP AIR PORTUGAL
Mon 9/4Mon 14/5
BOS - OPO • Direct
Direct flights
You can fly direct with TAP AIR PORTUGAL. Average duration is 6h 43m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 91% 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 29% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 49% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £325 (return)
Shortest trip • 9h 45m (one-way)
Insights
Insights
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We hope you enjoy your trip to Porto!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Boston to Porto (BOS-OPO)

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

Recent return flight deals from Boston to Porto

Sun, 28 Feb - Fri, 26 Mar
Scandinavian Airlines Logo
17:35 - 11:05BOS  Boston Logan Intl-OPO Porto
12h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
17:45 - 16:45OPO  Porto-BOS Boston Logan Intl
27h 00m1 stop Kastrup Copenhagen
£463Scandinavian Airlines
Sun, 28 Feb - Mon, 22 Mar
Scandinavian Airlines Logo
17:35 - 11:05BOS  Boston Logan Intl-OPO Porto
12h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
11:55 - 16:45OPO  Porto-BOS Boston Logan Intl
32h 50m1 stop Kastrup Copenhagen
£486Scandinavian Airlines
Wed, 7 Apr - Sun, 11 Apr
Scandinavian Airlines Logo
17:40 - 11:00BOS  Boston Logan Intl-OPO Porto
12h 20m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
17:55 - 22:26OPO  Porto-BOS Boston Logan Intl
33h 31m2 stops Kastrup Copenhagen New York John F Kennedy Intl
£498Scandinavian Airlines
Sun, 8 Nov - Tue, 17 Nov
Multiple Airlines Logo
18:05 - 09:30BOS  Boston Logan Intl-OPO Porto
10h 25m1 stop Newark
Multiple Airlines Logo
12:05 - 20:20OPO  Porto-BOS Boston Logan Intl
13h 15m1 stop Zurich
£503Multiple Airlines
Sun, 8 Nov - Tue, 17 Nov
Multiple Airlines Logo
05:30 - 09:30BOS  Boston Logan Intl-OPO Porto
23h 00m2 stops Washington, D.C. Dulles Intl Newark
Multiple Airlines Logo
12:05 - 20:20OPO  Porto-BOS Boston Logan Intl
13h 15m1 stop Zurich
£510Multiple Airlines
Sun, 8 Nov - Thu, 19 Nov
Delta Logo
13:35 - 08:15BOS  Boston Logan Intl-OPO Porto
13h 40m1 stop New York John F Kennedy Intl
Delta Logo
10:15 - 18:59OPO  Porto-BOS Boston Logan Intl
13h 44m1 stop New York John F Kennedy Intl
£513Delta
Sun, 8 Nov - Wed, 18 Nov
United Airlines Logo
19:05 - 09:30BOS  Boston Logan Intl-OPO Porto
9h 25m1 stop Newark
United Airlines Logo
12:35 - 23:59OPO  Porto-BOS Boston Logan Intl
16h 24m2 stops Newark Washington, D.C. Dulles Intl
£516United Airlines
Sun, 14 Feb - Mon, 22 Feb
Multiple Airlines Logo
20:00 - 11:45BOS  Boston Logan Intl-OPO Porto
10h 45m1 stop Madrid Barajas
Multiple Airlines Logo
20:40 - 22:54OPO  Porto-BOS Boston Logan Intl
31h 14m2 stops Madrid Barajas New York John F Kennedy Intl
£517Multiple Airlines
Sun, 13 Dec - Fri, 15 Jan
United Airlines Logo
13:35 - 09:30BOS  Boston Logan Intl-OPO Porto
14h 55m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
06:00 - 13:45OPO  Porto-BOS Boston Logan Intl
12h 45m1 stop Frankfurt am Main
£521United Airlines
Sun, 14 Feb - Mon, 22 Feb
Multiple Airlines Logo
12:30 - 11:15BOS  Boston Logan Intl-OPO Porto
17h 45m2 stops Newark Zurich
Multiple Airlines Logo
19:20 - 20:20OPO  Porto-BOS Boston Logan Intl
30h 00m1 stop Zurich
£523Multiple 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 with more confidence.

How much is a return flight from Boston to Porto?

Return flights from Boston to Porto typically range from £459 to £727. The lowest price found in the past 5 days was £463 on Scandinavian Airlines.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Boston to Porto. It’s 9% cheaper than the average day, while Saturday is the most expensive, with prices 5% higher.

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

•February is the cheapest month to fly from Boston to Porto at £300 return.
•July (£701) and June (£701) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 133% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Porto the cheapest?

Flights from Boston to Porto are cheapest 15 weeks before departure. Booking in this window typically costs about 29% 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

£255
Beat the crowds with an average 62% drop in traveller numbers.
The most popular month to fly with an average 91% increase in traveller numbers.
One-way flight 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 return price

Your Boston to Porto 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 Boston to Porto?

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

    • Earliest: departs at 22:45 and lands at 05:28
    • Latest: departs at 23:50 and lands at 06:33.

    The flight takes about 6h 43m.

  • How long is a flight from Boston to Porto?

    A direct flight from Boston to Porto takes 6h 43m, covering 3,134 miles.

  • 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?

    Return flights from Boston to Porto range from £459 to £727, with an average of £583 over the past 12 months. Anything below £459 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 11% above the £583 route average. Book 15 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Boston to Porto?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £325 return via Kastrup Copenhagen (CPH), compared with £625 for direct.

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

    TAP AIR PORTUGAL is the only airline operating Boston to Porto flights. 91% 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 £44–£76 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 lower than usual. Average one-way flight prices are about £285, which is 17% below the typical average for this route.

  • Which car hire options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car hire companies, with daily rates starting from around £1 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • 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).

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

    Night flights have the fewest delays on this route.

  • 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, 9% of flights were delayed in the past three months, with delays averaging 2h 41m.

  • 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) – 43% of one-stop connections
    • Madrid Barajas (MAD) – 15% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 14% of one-stop connections
    • Ponta Delgada Nordela (PDL) – 7% of one-stop connections

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

    Yes. Flexible dates can save you up to 14% on flights from Boston to Porto. Tuesday is the cheapest departure day at £533 return on average, while Saturday is the most expensive at £616, a difference of £83.

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

  • Which airlines fly from Boston to Porto?

    Only TAP AIR PORTUGAL operates flights between Boston and Porto.

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

    Flying via Lajes (TER) gives the shortest average 1-stop total travel time of 9h 45m, compared to 10h 59m via Newark (EWR) and 11h 09m 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.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Ponte de D. Luís, and Stadium of Bessa XXI Century. 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 cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always 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 Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average £533, about £83 less than Saturday fares (13% 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 29% 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 £300 return in that month – typically £401 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 stopover option averages £325 return on this route – about £300 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 Porto Airport.

    • Opo Hotel Porto Aeroporto
  • 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

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

Direct returns

Porto to Boston Logan Intl

Tuesday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

Sunday

TAP AIR PORTUGAL

TAP AIR PORTUGAL

See more direct flights

More options for your flight from Boston to Porto

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