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Cheap flights from Boston to Porto from £255

BOS — OPO
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Porto

Fri 13/1122:10 -
1 stop13h 50m
Sun 15/1115:40 -
2 stops33h 20m
Deal found 29/10£502
Wed 2/1211:00 -
1 stop17h 30m
Tue 22/1212:35 -
1 stop15h 15m
Deal found 31/10£513
Wed 2/1210:00 -
1 stop18h 30m
Thu 10/1212:35 -
1 stop11h 10m
Deal found 27/10£514
Wed 2/1209:10 -
1 stop18h 05m
Mon 7/1211:15 -
1 stop32h 05m
Deal found 29/10£516
Wed 2/1206:00 -
2 stops22h 30m
Tue 8/1212:35 -
1 stop11h 10m
Deal found 27/10£517
Tue 1/1212:00 -
1 stop16h 30m
Fri 25/1212:35 -
1 stop25h 50m
Deal found 31/10£518
Sat 28/1121:30 -
1 stop29h 45m
Wed 23/1211:15 -
1 stop32h 05m
Deal found 31/10£525
Tue 1/1214:36 -
2 stops13h 54m
Tue 22/1206:00 -
2 stops21h 50m
Deal found 31/10£529
Tue 1/1209:10 -
2 stops20h 25m
Mon 7/1211:15 -
1 stop32h 05m
Deal found 29/10£531
Fri 4/1218:00 -
1 stop23h 00m
Tue 8/1217:45 -
Nonstop7h 45m
Deal found 26/10£535

Find flight deals from Boston to Porto

Round-trip from

£501

One-way from

£255

Popular in

July

Cheapest in

February

Average price

£564
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/4-9/4
  • 1 total stop
  • 27h 45m total
  • Boston to Porto
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 21/2-31/12
  • Nonstop
  • 6h 45m total
  • Boston to Porto
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Porto that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Sun 21/2

18:00-10:45

1 stop11h 45m

Porto

Wed 31/12

00:00-18:00

Nonstop0h 00m

£271

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Thu 25/2

07:00-15:10

3 stops27h 10m

Porto

Wed 31/12

00:00-18:00

Nonstop0h 00m

£346

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Thu 31/12

05:45-09:30

2 stops22h 45m

Porto

Wed 31/12

00:00-18:00

Nonstop0h 00m

£416

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Sat 26/12

07:15-09:30

1 stop21h 15m

Porto

Wed 31/12

00:00-18:00

Nonstop0h 00m

£425

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 20/11

09:10-08:15

1 stop18h 05m

Porto

Wed 31/12

00:00-18:00

Nonstop0h 00m

£473

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Wed 10/2

20:40-23:30

1 stop21h 50m

Porto

Thu 25/2

12:05-20:20

1 stop13h 15m

£525

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Tue 9/2

18:20-10:35

1 stop11h 15m

Porto

Sat 27/2

11:15-14:13

1 stop31h 58m

£568

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Fri 26/2

22:10-13:30

1 stop10h 20m

Porto

Wed 10/3

08:30-14:40

1 stop11h 10m

£591

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Thu 10/12

05:45-09:30

2 stops22h 45m

Porto

Mon 14/12

12:35-23:59

2 stops16h 24m

£592

BostonPorto

BOS Boston Logan Intl - OPO Porto

BOSOPO

Boston Logan Intl

Tue 24/11

10:30-09:30

1 stop18h 00m

Porto

Tue 1/12

12:35-18:45

1 stop11h 10m

£602

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Boston to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Boston with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Boston to Porto

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

The price you pay for your flight from Boston to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Porto?

Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of £310). Flying from Boston to Porto in July is currently the most expensive (average of £697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to OPO?

When flying from Boston to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Boston to Porto?

Airfare is typical for this route at the moment.

Boston to Porto flights typically cost between £413 and £574 in April.
The cheapest return price found within the last 5 days was £501 on TAP AIR PORTUGAL (1 Apr–9 Apr).

Related info for your journey

  • How popular is this Boston to Porto flight route?

    This flight path from Boston Logan Intl to Porto was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Porto?

    Airlines like TAP AIR PORTUGAL and United Airlines fly from Boston to Porto in about 10h 20m. The time it takes to get you to your destination can typically vary by up to 12h 25m. The distance from Boston to Porto is about 3134 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Boston to Porto that include hotel bookings?

    Yes. In addition to deals on Boston to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Porto.

  • Can I find deals for business class flights from Boston to Porto?

    Yes. Cheapflights offers flight deals from Boston to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Porto?

    Currently, February is the cheapest month in which you can book a flight from Boston to Porto (average of £310). Flying from Boston to Porto in July is currently the most expensive (average of £697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Guimarães
Esposende
Santa Maria da Feira
Aveiro
Chaves
Coimbra
Viseu
Vila Nova de Gaia

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Boston to Porto

Boston to Lisbon flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Boston to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Boston to Porto for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Boston to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Boston to Porto flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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