Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Porto from $152

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Porto departing on 12/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Boston to Porto

Cheap round-trip flights

British Airways Logo
4:30 pm - 3:55 pmBOS-OPO
18h 25m1 stop
British Airways Logo
8:20 am - 3:15 pmOPO-BOS
11h 55m1 stop
$339British Airways
Find Deal
mar., oct. 21 - mié., nov. 5
Iberia Logo
10:20 pm - 11:45 amBOS-OPO
9h 25m1 stop
Iberia Logo
8:20 am - 3:15 pmOPO-BOS
11h 55m1 stop
$341Iberia
Find Deal
lun., oct. 27 - vie., nov. 7
Iberia Logo
9:20 pm - 11:45 amBOS-OPO
9h 25m1 stop
Iberia Logo
8:45 am - 8:55 pmOPO-BOS
17h 10m1 stop
$342Iberia
Find Deal
dom., nov. 30 - jue., dic. 11
Iberia Logo
9:20 pm - 11:45 amBOS-OPO
9h 25m1 stop
Iberia Logo
8:20 am - 3:15 pmOPO-BOS
11h 55m1 stop
$344Iberia
Find Deal
dom., nov. 30 - mié., dic. 10
American Airlines Logo
1:06 pm - 7:40 amBOS-OPO
14h 34m2 stops
American Airlines Logo
12:25 pm - 7:50 pmOPO-BOS
12h 25m1 stop
$349American Airlines
Find Deal
lun., oct. 27 - vie., nov. 7
United Airlines Logo
5:30 am - 9:30 amBOS-OPO
24h 00m2 stops
United Airlines Logo
12:35 pm - 6:48 pmOPO-BOS
35h 13m2 stops
$378United Airlines
Find Deal
lun., oct. 27 - vie., nov. 7
SWISS Logo
9:50 pm - 11:50 amBOS-OPO
33h 00m1 stop
SWISS Logo
12:05 pm - 8:20 pmOPO-BOS
13h 15m1 stop
$383SWISS
Find Deal
mié., nov. 12 - mar., dic. 16
American Airlines Logo
3:00 pm - 11:40 amBOS-OPO
15h 40m2 stops
American Airlines Logo
8:40 pm - 4:15 pmOPO-BOS
23h 35m1 stop
$384American Airlines
Find Deal
dom., oct. 19 - lun., oct. 27
SWISS Logo
9:50 pm - 11:50 amBOS-OPO
33h 00m1 stop
SWISS Logo
7:25 pm - 8:20 pmOPO-BOS
29h 55m1 stop
$388SWISS
Find Deal
mié., nov. 26 - mar., dic. 16
Air Canada Logo
6:00 am - 11:30 amBOS-OPO
24h 30m2 stops
Air Canada Logo
11:05 am - 9:26 pmOPO-BOS
15h 21m2 stops
$412Air Canada
Find Deal
mar., oct. 14 - mar., oct. 21

SWISS flights from Boston to Porto

Our best SWISS deals on Boston to Porto flight tickets
SWISS
Nov 12
BOS9:50 pmBoston Logan Intl
33h 00m
1 stop
OPO11:50 amPorto
Dec 16
OPO12:05 pmPorto
13h 15m
1 stop
BOS8:20 pmBoston Logan Intl
$383
Find similar
SWISS
Nov 26
BOS9:50 pmBoston Logan Intl
33h 00m
1 stop
OPO11:50 amPorto
Dec 16
OPO7:25 pmPorto
29h 55m
1 stop
BOS8:20 pmBoston Logan Intl
$388
Find similar
SWISS
Oct 14
BOS5:05 pmBoston Logan Intl
21h 00m
2 stops
OPO7:05 pmPorto
Oct 21
OPO8:40 amPorto
16h 15m
1 stop
BOS7:55 pmBoston Logan Intl
$406
Find similar

British Airways flights from Boston to Porto

Our best British Airways deals on Boston to Porto flight tickets
British Airways
Oct 21
BOS4:30 pmBoston Logan Intl
18h 25m
1 stop
OPO3:55 pmPorto
Nov 5
OPO8:20 amPorto
11h 55m
1 stop
BOS3:15 pmBoston Logan Intl
$339
Find similar
British Airways
Oct 26
BOS10:20 pmBoston Logan Intl
9h 25m
1 stop
OPO11:45 amPorto
Nov 3
OPO12:25 pmPorto
31h 50m
1 stop
BOS3:15 pmBoston Logan Intl
$350
Find similar
British Airways
Oct 14
BOS9:20 pmBoston Logan Intl
13h 35m
1 stop
OPO3:55 pmPorto
Oct 21
OPO12:20 pmPorto
12h 30m
1 stop
BOS7:50 pmBoston Logan Intl
$364
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Boston to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mar. 10/21

4:30 pm-3:55 pm

1 stop18h 25m

Porto

mié. 11/5

8:20 am-3:15 pm

1 stop11h 55m

$339

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 10/27

10:20 pm-11:45 am

1 stop9h 25m

Porto

vie. 11/7

8:20 am-3:15 pm

1 stop11h 55m

$341

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

dom. 11/30

9:20 pm-11:45 am

1 stop9h 25m

Porto

jue. 12/11

8:45 am-8:55 pm

1 stop17h 10m

$342

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

dom. 11/30

9:20 pm-11:45 am

1 stop9h 25m

Porto

mié. 12/10

8:20 am-3:15 pm

1 stop11h 55m

$344

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 10/27

1:06 pm-7:40 am

2 stops14h 34m

Porto

vie. 11/7

12:25 pm-7:50 pm

1 stop12h 25m

$349

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

lun. 10/27

5:30 am-9:30 am

2 stops24h 00m

Porto

vie. 11/7

12:35 pm-6:48 pm

2 stops35h 13m

$378

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 11/12

9:50 pm-11:50 am

1 stop33h 00m

Porto

mar. 12/16

12:05 pm-8:20 pm

1 stop13h 15m

$383

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

dom. 10/19

3:00 pm-11:40 am

2 stops15h 40m

Porto

lun. 10/27

8:40 pm-4:15 pm

1 stop23h 35m

$384

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mié. 11/26

9:50 pm-11:50 am

1 stop33h 00m

Porto

mar. 12/16

7:25 pm-8:20 pm

1 stop29h 55m

$388

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

mar. 10/14

6:00 am-11:30 am

2 stops24h 30m

Porto

mar. 10/21

11:05 am-9:26 pm

2 stops15h 21m

$412

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Boston to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Porto?

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Boston, with most prices found around $535. If you aren’t able to travel during the month of January, then book flights to Porto from Boston during November instead. Flights to Porto in November, while not as cheap as those in January, still average around $556.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Tuesday when prices can be found for as low as $662. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $845. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the morning is the cheapest time of day to fly from Boston to Porto when you can find flight prices for as low as $569. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $779 on average. Flights to Porto from Boston in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Boston Logan Intl to Porto flight route?

Fly from Boston Logan Intl to Porto for the best Boston Logan Intl - Porto flight prices

How far in advance should I book a flight to Porto?

You are more likely to see cheaper flights to Porto from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $654 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Boston for as low as $624 on momondo.

What cabin class options are available on Boston Logan Intl to Porto flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to Porto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to Porto flight prices changed over time?

As of August 2025, prices for Boston to Porto flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Porto (BOS to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Porto

Best Price Found

$152

Fastest flight time

6h 40m

Direct flights

Mon, Tue, Thu, Sat and Sun

Airports in Porto

1 airport
The best one-way flight to Porto from Boston in the past 72 hours is $152. The best round-trip flight deal from Boston to Porto found on momondo in the last 72 hours is $339.
The fastest flight from Boston to Porto takes 6h 40m
Direct flights go from Boston to Porto on Monday, Tuesday, Thursday, Saturday and Sunday. Airlines offering direct flights are: TAP AIR PORTUGAL and Azores Airlines.
There is 1 airport near Porto: Porto (OPO)
Search flight deals

  • How far is Boston Logan Intl to Porto by plane?

    The straight-line distance from Boston Logan Intl to Porto is 3141.4 mi. A reasonable flight in good conditions will take 9h 20m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Porto Airport?

    Prices for flights from Boston Logan Intl Airport to Porto Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Porto Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Porto Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Boston to Porto?

  • What is the most popular airline from Boston to Porto?

Best airlines flying from Boston to Porto

Compare and see reviews for airlines that fly from Boston to Porto with momondo
Airline
Rating
Free Cancellation
Price
Azores AirlinesPriceFrom $302Free CancellationRating
7.5
69 reviews
Search Azores Airlines flights
SWISSPriceFrom $338Free CancellationRating
7.5
1,699 reviews
Search SWISS flights
IberiaPriceFrom $389Free CancellationRating
7.0
2,878 reviews
Search Iberia flights
British AirwaysPriceFrom $441Free CancellationRating
6.6
7,266 reviews
Search British Airways flights
KLMPriceFrom $467Free CancellationRating
7.8
1,381 reviews
Search KLM flights
United AirlinesPriceFrom $474Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $503Free CancellationRating
7.1
1,948 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $505Free CancellationRating
8.0
7,980 reviews
Search Delta flights
LufthansaPriceFrom $515Free CancellationRating
6.8
7,317 reviews
Search Lufthansa flights
American AirlinesPriceFrom $522Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • TAP AIR PORTUGAL Flights From Boston to Porto

    TAP AIR PORTUGAL operates around 1 flight from Boston to Porto every week. The average price of these flights found in the last 72 hours has been $758, but momondo users have found TAP AIR PORTUGAL deals from Boston to Porto from as low as $503 round-trip. TAP AIR PORTUGAL has been scored 7.1/10 in 1,947 reviews.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Lamego
Guimarães
Esposende
Chaves
Arcos de Valdevez
Espinho
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Porto?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Porto. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Porto with flexible booking policies on momondo?

All flight searches from Boston to Porto on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boston to Porto?

Once all potential Boston to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boston to Porto right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from Boston and alert you when they change.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mar. 8/19
mar. 8/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal