Cheap Flights from Boston, MA to Porto from $331

Return flight: Porto – Boston

On Cheapflightsplus.com you will find 1 direct and 78 connecting flights from Boston to Porto. You can compare airfare deals from 15 airlines and multiple travel sites from $331, book and save on cheap plane tickets and last minute offers. Also check out BOS-OPO flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Boston to Porto Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $331 (one-way), $568 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Boston to Porto. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
21:15 — 11:40
+1 day
21:15 — 11:40 S4272 SATA International
Boston — Porto
9h 25m
Find flight
from$401
06:05 — 06:50
+1 day
06:00 — 07:21 UA1833 United Airlines
Boston — Newark
11h 24m stop
18:50 — 06:55 UA238 United Airlines
Newark — Porto
19h 45m
including layover
Find flight
from$548
07:00 — 09:45
+1 day
07:00 — 08:21 UA570 United Airlines
Boston — Newark
13h 19m stop
21:40 — 09:45 UA144 United Airlines
Newark — Porto
21h 45m
including layover
Find flight
from$472
07:00 — 06:50
+1 day
07:00 — 08:21 UA570 United Airlines
Boston — Newark
10h 29m stop
18:50 — 06:55 UA238 United Airlines
Newark — Porto
18h 50m
including layover
Find flight
from$548
09:00 — 06:50
+1 day
08:50 — 10:09 UA2016 United Airlines
Boston — Newark
8h 31m stop
18:50 — 06:55 UA238 United Airlines
Newark — Porto
16h 50m
including layover
Find flight
from$610
11:45 — 18:40
+1 day
11:45 — 20:50 S4282 SATA International
Boston — Ponta Delgada
18h 30m stop
15:20 — 18:40 S4174 SATA International
Ponta Delgada — Porto
25h 55m
including layover
Find flight
from$400
16:30 — 07:35
+1 day
16:30 — 05:40 BA4264 British Airways
Boston — Madrid
1h 40m stop
07:20 — 07:35 BA7103 British Airways
Madrid — Porto
10h 5m
including layover
Find flight
from$474
16:30 — 15:55
+1 day
16:30 — 05:40 BA4264 British Airways
Boston — Madrid
10h stop
15:40 — 15:55 BA7105 British Airways
Madrid — Porto
18h 25m
including layover
Find flight
from$533
17:03 — 10:30
+1 day
12:40 — 14:07 TP8513 TAP Portugal
Boston — Newark
4h 15m stop
22:45 — 10:30 TP212 TAP Portugal
Newark — Porto
12h 27m
including layover
Find flight
from$474
17:50 — 11:15
+1 day
16:15 — 05:25 LH423 Lufthansa
Boston — Frankfurt
2h 30m stop
09:45 — 11:40 LH1176 Lufthansa
Frankfurt — Porto
12h 25m
including layover
Find flight
from$445
18:10 — 10:00
+1 day
18:10 — 05:40 TP218 TAP Portugal
Boston — Lisbon
3h 15m stop
09:05 — 10:00 TP1924 TAP Portugal
Lisbon — Porto
10h 50m
including layover
Find flight
from$482
18:10 — 16:55
+1 day
18:10 — 05:40 TP218 TAP Portugal
Boston — Lisbon
10h 10m stop
15:55 — 17:00 TP1930 TAP Portugal
Lisbon — Porto
17h 45m
including layover
Find flight
from$538
19:02 — 10:30
+1 day
10:25 — 11:56 TP8515 TAP Portugal
Boston — Newark
2h 16m stop
22:45 — 10:30 TP212 TAP Portugal
Newark — Porto
10h 28m
including layover
Find flight
from$574
21:15 — 11:40
+1 day
21:15 — 06:20 S4272 SATA International
Boston — Ponta Delgada
2h stop
08:20 — 11:40 S4272 SATA International
Ponta Delgada — Porto
9h 25m
including layover
Find flight
from$455
22:45 — 20:25
+1 day
22:45 — 10:15 TP216 TAP Portugal
Boston — Lisbon
9h 10m stop
19:25 — 20:25 TP1934 TAP Portugal
Lisbon — Porto
16h 40m
including layover
Find flight
from$405
22:45 — 22:35
+1 day
22:45 — 10:15 TP216 TAP Portugal
Boston — Lisbon
11h 25m stop
22:00 — 22:55 TP1936 TAP Portugal
Lisbon — Porto
18h 50m
including layover
Find flight
from$418
10:20 — 11:15
+1 day
10:20 — 11:45 AC751 Air Canada
Boston — Montreal
6h 20m stop
18:05 — 07:10 AC9634 Air Canada
Montreal — Frankfurt
2h 15m stop
09:25 — 11:15 AC9230 Air Canada
Frankfurt — Porto
19h 55m
including layover
Find flight
from$458
10:20 — 15:45
+1 day
10:20 — 11:45 AC751 Air Canada
Boston — Montreal
6h 20m stop
18:05 — 07:10 AC9634 Air Canada
Montreal — Frankfurt
6h 45m stop
13:55 — 15:45 AC9250 Air Canada
Frankfurt — Porto
24h 25m
including layover
Find flight
from$458
11:45 — 14:55
+1 day
11:45 — 20:50 S4282 SATA International
Boston — Ponta Delgada
11h 35m stop
08:25 — 11:40 S4120 SATA International
Ponta Delgada — Lisbon
2h 30m stop
14:00 — 15:00 S48039 SATA International
Lisbon — Porto
22h 10m
including layover
Find flight
from$575
12:15 — 12:05
+1 day
12:15 — 14:10 AC771 Air Canada
Boston — Toronto
4h 25m stop
18:35 — 07:50 AC826 Air Canada
Toronto — Brussels
2h 40m stop
10:30 — 12:05 AC6312 Air Canada
Brussels — Porto
18h 50m
including layover
Find flight
from$537
12:29 — 06:50
+1 day
12:29 — 14:09 UA411 United Airlines
Boston — Washington D.C.
1h 31m stop
15:40 — 17:00 UA591 United Airlines
Washington D.C. — Newark
1h 50m stop
18:50 — 06:55 UA238 United Airlines
Newark — Porto
13h 21m
including layover
Find flight
from$615
15:20 — 12:05
+1 day
15:20 — 16:44 AC8609 Air Canada
Boston — Montreal
2h 17m stop
19:05 — 08:00 AC832 Air Canada
Montreal — Brussels
2h 30m stop
10:30 — 12:05 AC6312 Air Canada
Brussels — Porto
15h 45m
including layover
Find flight
from$531
15:20 — 11:15
+1 day
15:20 — 16:44 AC8609 Air Canada
Boston — Montreal
1h 47m stop
18:35 — 08:10 AC844 Air Canada
Montreal — Frankfurt
1h 15m stop
09:25 — 11:15 AC9230 Air Canada
Frankfurt — Porto
14h 55m
including layover
Find flight
from$538
19:15 — 09:35
+3 days
19:15 — 21:04 PD2948 Porter Airlines
Boston — Toronto
22h 11m stop
19:15 — 06:50 TS244 Air Transat
Toronto — Glasgow
24h stop
06:50 — 09:35 U23175 EasyJet
Glasgow — Porto
57h 20m
including layover
Find flight
from$599
20:50 — 21:20
+1 day
20:50 — 06:05 FI630 Icelandair
Boston — Reykjavik
2h 20m stop
08:25 — 14:45 FI596 Icelandair
Reykjavik — Barcelona
5h 40m stop
20:25 — 21:20 VY8480 Vueling
Barcelona — Porto
19h 30m
including layover
Find flight
from$331
20:50 — 18:50
+1 day
20:50 — 06:05 FI630 Icelandair
Boston — Reykjavik
1h 30m stop
07:35 — 13:00 FI542 Icelandair
Reykjavik — Paris
4h 30m stop
17:35 — 18:55 TO7608 Transavia France
Paris — Porto
17h
including layover
Find flight
from$391
*Departure and arrival times - local. Updated on August 3, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Boston to Porto depends on and how to choose the most interesting flight option for you.

Distance between Boston and Porto is 5047 miles. Time difference between the cities is 5h. Airplanes depart 06:05 to 22:45 from 4 Boston airports and arrive 06:05 to 22:45 to 1 Porto airport. Average flight time is 9h 25m.

  • The fastest flight 9h 20m
  • Average flight time 9h 25m
  • The earliest flight 06:05
  • The latest flight 22:45
  • Distance 3137 ml

The cheapest months to travel to Porto are july (from 322 $), october (from 331 $), june (from 391 $).

The most expensive months are december (from 742 $), february (from 579 $), january (from 516 $).

What is the lowest airfare Boston to Porto?

The cheapest plane ticket found by our users is $331. This airfare is for economy class on one-way FI630 flight by Icelandair for October 7, 2025 which leaves Logan in Boston at 20:50 am and arrives at Porto Porto at 21:20.

Economy class
$331
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Business class
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First class
?
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Popular Airlines on the Route

The flight Boston — Porto is served by 15 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by SATA International - 6 departures per week at the price of from $ 400 . And the most expensive tickets are offered by TAP Portugal airline - from $ 788.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is S4272 by SATA International takes 9h 25m and the cheapest is FI630 by Icelandair for $401.

  • S4 - SATA International
    from $401
    Find
See more direct flights

Connecting Flights

There are 78 flights with layovers on the route. The fastest connecting flight is BA4200 by British Airways takes 9h 20m and the cheapest is FI630 by Icelandair for $331.

  • S4 - SATA International
    from $400
    Find
  • KL - KLM
    from $487
    Find
  • AC - Air Canada
    from $458
    Find
  • FI - Icelandair
    from $331
    Find
  • OS - Austrian Airlines
    from $622
    Find
  • AF - Air France
    from $574
    Find
  • UA - United Airlines
    from $472
    Find
  • LX - SWISS International Air Lines
    from $495
    Find
  • PD - Porter Airlines
    from $543
    Find
  • AZ - Alitalia
    from $519
    Find
  • IB - Iberia
    from $600
    Find
  • TP - TAP Portugal
    from $405
    Find
See more connecting flights

Airports

You can fly from Boston to Porto from 4 airports (Boston City Heliport, Boston RT128 Rail, Boston South Rail, Logan).

Boston airports

  • Boston City Heliport-JBC
    Find
  • Boston RT128 Rail-ZRU
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  • Boston South Rail-ZTO
    Find
  • Logan-BOS
    from $331
    Find

Porto airports

  • Porto-OPO
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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