Which airline has the best punctuality record on Boston to Porto flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 3% of their flights experiencing any sort of delay.

Which layover airport offers the lowest fares from Boston to Porto?

Flights via Paris (CDG) offer the lowest average round-trip price of $533.

Which layover airport has the shortest connection time from Boston to Porto?

Paris (CDG) has the shortest average layover time for this route: 1h 28m.

How often are flights from Boston to Porto delayed?

Historically, on average around 3% of flights between Boston and Porto have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Which airport is the most popular layover for flights between Boston and Porto?

Lisbon (LIS) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Boston Logan Intl to Porto?

TAP AIR PORTUGAL and Azores Airlines are the most popular carriers operating from Boston Logan Intl to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, Iberia and Azores Airlines are the top three most popular airlines that fly to Porto from Boston according to our data. TAP AIR PORTUGAL is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 11 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Boston to Porto?

Flights connecting via Lajes (TER) have the shortest average one-way travel time: 8h 40m.

What is the most punctual flight time for Boston to Porto flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

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?

There are 11 operators available for flights from Boston Logan Intl Airport to Porto Airport as of November 2025.

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.

$241 Cheap Flights from Boston to Porto in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Boston to Porto

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 pm - 10:30 amBOS-OPO

11h 00m1 stop

11:15 am - 1:30 pmOPO-BOS

31h 15m1 stop

$394KLM

Find Deal

Wed, Jan 14 - Mon, Jan 19

8:25 pm - 10:25 amBOS-OPO

33h 00m1 stop

11:15 am - 6:55 pmOPO-BOS

12h 40m1 stop

$395KLM

Find Deal

Wed, Dec 3 - Wed, Dec 10

6:24 pm - 9:30 amBOS-OPO

10h 06m1 stop

12:30 pm - 8:00 pmOPO-BOS

36h 30m2 stops

$399United Airlines

Find Deal

Sun, Nov 23 - Wed, Dec 3

8:40 pm - 1:15 pmBOS-OPO

11h 35m1 stop

12:05 pm - 7:42 pmOPO-BOS

36h 37m2 stops

$401Multiple Airlines

Find Deal

Wed, Jan 14 - Mon, Jan 19

6:30 pm - 10:30 amBOS-OPO

11h 00m1 stop

11:25 am - 4:20 pmOPO-BOS

33h 55m1 stop

$405Delta

Find Deal

Mon, Nov 24 - Wed, Dec 3

5:30 am - 9:30 amBOS-OPO

23h 00m2 stops

9:10 am - 8:20 pmOPO-BOS

40h 10m2 stops

$406Multiple Airlines

Find Deal

Sun, Nov 23 - Tue, Dec 2

8:50 pm - 7:20 pmBOS-OPO

17h 30m1 stop

6:00 am - 6:55 pmOPO-BOS

17h 55m1 stop

$407KLM

Find Deal

Wed, Feb 11 - Wed, Feb 18

11:30 am - 10:30 amBOS-OPO

18h 00m2 stops

11:25 am - 11:51 pmOPO-BOS

17h 26m2 stops

$408Delta

Find Deal

Wed, Feb 11 - Wed, Feb 25

9:30 am - 9:30 amBOS-OPO

19h 00m2 stops

12:30 pm - 1:25 pmOPO-BOS

29h 55m1 stop

$409United Airlines

Find Deal

Mon, Nov 24 - Wed, Dec 3

5:30 am - 11:10 amBOS-OPO

24h 40m2 stops

12:05 pm - 8:00 pmOPO-BOS

12h 55m1 stop

$411Multiple Airlines

Find Deal

Thu, Jan 29 - Thu, Feb 5

SWISS flights from Boston to Porto

Our best SWISS deals on Boston to Porto flight tickets

SWISS

Apr 12

BOS5:05 pmBoston Logan Intl

20h 25m

1 stop

OPO6:30 pmPorto

Apr 20

OPO7:20 pmPorto

29h 35m

1 stop

BOS7:55 pmBoston Logan Intl

$434

Find similar

SWISS

Nov 23

BOS10:10 pmBoston Logan Intl

32h 05m

1 stop

OPO11:15 amPorto

Dec 1

OPO9:10 amPorto

40h 10m

2 stops

BOS8:20 pmBoston Logan Intl

$598

Find similar

United Airlines flights from Boston to Porto

Our best United Airlines deals on Boston to Porto flight tickets

United Airlines

Mar 4

BOS9:40 amBoston Logan Intl

18h 50m

2 stops

OPO9:30 amPorto

Mar 31

OPO6:00 amPorto

14h 55m

1 stop

BOS3:55 pmBoston Logan Intl

$391

Find similar

United Airlines

Nov 23

BOS6:24 pmBoston Logan Intl

10h 06m

1 stop

OPO9:30 amPorto

Dec 3

OPO12:30 pmPorto

36h 30m

2 stops

BOS8:00 pmBoston Logan Intl

$399

Find similar

United Airlines

Mar 17

BOS8:00 pmBoston Logan Intl

9h 30m

1 stop

OPO9:30 amPorto

Apr 7

OPO6:00 amPorto

14h 55m

1 stop

BOS3:55 pmBoston Logan Intl

$402

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 1/14

6:30 pm-10:30 am

1 stop11h 00m

Porto

Mon 1/19

11:15 am-1:30 pm

1 stop31h 15m

$394

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 12/3

8:25 pm-10:25 am

1 stop33h 00m

Porto

Wed 12/10

11:15 am-6:55 pm

1 stop12h 40m

$395

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/23

6:24 pm-9:30 am

1 stop10h 06m

Porto

Wed 12/3

12:30 pm-8:00 pm

2 stops36h 30m

$399

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 1/14

8:40 pm-1:15 pm

1 stop11h 35m

Porto

Mon 1/19

12:05 pm-7:42 pm

2 stops36h 37m

$401

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 11/24

6:30 pm-10:30 am

1 stop11h 00m

Porto

Wed 12/3

11:25 am-4:20 pm

1 stop33h 55m

$405

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 11/23

5:30 am-9:30 am

2 stops23h 00m

Porto

Tue 12/2

9:10 am-8:20 pm

2 stops40h 10m

$406

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 2/11

8:50 pm-7:20 pm

1 stop17h 30m

Porto

Wed 2/18

6:00 am-6:55 pm

1 stop17h 55m

$407

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 2/11

11:30 am-10:30 am

2 stops18h 00m

Porto

Wed 2/25

11:25 am-11:51 pm

2 stops17h 26m

$408

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 11/24

9:30 am-9:30 am

2 stops19h 00m

Porto

Wed 12/3

12:30 pm-1:25 pm

1 stop29h 55m

$409

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 1/29

5:30 am-11:10 am

2 stops24h 40m

Porto

Thu 2/5

12:05 pm-8:00 pm

1 stop12h 55m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Boston, with most prices found around $543. If you aren’t able to travel during the month of November, then book flights to Porto from Boston during March instead. Flights to Porto in March, while not as cheap as those in November, still average around $555.

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 $701. 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 $840. 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?

At noon is the cheapest time of day to fly from Boston to Porto when you can find flight prices for as low as $724. Flying to Porto at noon 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 $775 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 $647 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 $617 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.

Can stopping save me money on Boston to Porto flights?

No. A direct flight is the cheapest option for a flight between Boston to Porto.

How have Boston to Porto flight prices changed over time?

As of November 2025, prices for Boston to Porto flights are approximately 30% 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	$181
Fastest flight time	6h 40m
Direct flights	Mon, Tue, Thu and Sun
Airports in Porto	1 airport

The best one-way flight to Porto from Boston in the past 72 hours is $181. The best round-trip flight deal from Boston to Porto found on momondo in the last 72 hours is $628.

The fastest flight from Boston to Porto takes 6h 40m

Direct flights go from Boston to Porto on Monday, Tuesday, Thursday and Sunday. The only airline offering direct flights is TAP AIR PORTUGAL.

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 6h 40m.
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?
There are 11 operators available for flights from Boston Logan Intl Airport to Porto Airport as of November 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to Porto is Airbus A321neo (60.11% of total bookings). The next most popular plane models are Airbus A330-900neo (10.90%), Boeing 777 (3.46%), and Airbus A350-900 (3.19%).
What is the most popular airline from Boston to Porto?
Based on momondo bookings for flights between Boston and Porto, the leading airline is TAP AIR PORTUGAL, making up 64% of the total bookings. Other popular airlines include Iberia with 11%, Azores Airlines with 6%, and United Airlines with 6%.

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
SWISS	PriceFrom $338	Free Cancellation	Rating 7.5 1,784 reviews	Search SWISS flights
Iberia	PriceFrom $373	Free Cancellation	Rating 7.0 3,012 reviews	Search Iberia flights
British Airways	PriceFrom $374	Free Cancellation	Rating 6.7 7,520 reviews	Search British Airways flights
KLM	PriceFrom $394	Free Cancellation	Rating 7.7 1,411 reviews	Search KLM flights
Air Canada	PriceFrom $434	Free Cancellation	Rating 7.1 10,448 reviews	Search Air Canada flights
United Airlines	PriceFrom $450	Free Cancellation	Rating 7.4 9,017 reviews	Search United Airlines flights
Lufthansa	PriceFrom $457	Free Cancellation	Rating 6.8 7,572 reviews	Search Lufthansa flights
Azores Airlines	PriceFrom $460	Free Cancellation	Rating 7.4 84 reviews	Search Azores Airlines flights
American Airlines	PriceFrom $466	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
TAP AIR PORTUGAL	PriceFrom $487	Free Cancellation	Rating 7.1 2,059 reviews	Search TAP AIR PORTUGAL flights

Vila Nova de Gaia

Coimbra

Aveiro

Matosinhos

Braga

Lamego

Guimarães

Esposende

Chaves

Espinho

Viseu

Ponte de Lima

Arcos de Valdevez

Pinhao

Curia

Penafiel

Mesao Frio

Mira

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

Sat 12/13

Sat 12/20

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Airports servicing Portugal

Faro Airport

Lisbon Humberto Delgado Airport

Azores Airport

Madeira Airport

Algarve Airport

Fly to other destinations from Boston

Flights from Boston Logan Intl to Grand Rapids Gerald R. Ford Intl

Flights from Boston Logan Intl to Cleveland Hopkins Intl

Flights from Boston Logan Intl to Raleigh-Durham

Flights from Boston Logan Intl to Charleston

Flights from Boston Logan Intl to Presque Isle

Flights from Boston Logan Intl to Wilmington New Hanover County

Cheap flights from Boston to Porto from $241

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 11/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Boston to Porto

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

SWISS flights from Boston to Porto

Our best SWISS deals on Boston to Porto flight tickets

United Airlines flights from Boston to Porto

Our best United Airlines deals on Boston to Porto flight tickets

momondo Fare Finder

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

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 cheapest month to fly to Porto?

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

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

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?

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.

Can stopping save me money on Boston to Porto flights?

No. A direct flight is the cheapest option for a flight between Boston to Porto.

How have Boston to Porto flight prices changed over time?

As of November 2025, prices for Boston to Porto flights are approximately 30% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Boston Logan Intl to Porto?

TAP AIR PORTUGAL and Azores Airlines are the most popular carriers operating from Boston Logan Intl to Porto

What airlines fly to Porto?

How often are flights from Boston to Porto delayed?

Historically, on average around 3% of flights between Boston and Porto have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

What is the most punctual flight time for Boston to Porto flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to Porto flights?

According to our data, TAP AIR PORTUGAL have had the least number of delays on this route over the last 12 months; with about 3% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Boston and Porto?

Lisbon (LIS) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Boston to Porto?

Flights via Paris (CDG) offer the lowest average round-trip price of $533.

Which layover airport has the shortest travel time from Boston to Porto?

Flights connecting via Lajes (TER) have the shortest average one-way travel time: 8h 40m.

Which layover airport has the shortest connection time from Boston to Porto?

Paris (CDG) has the shortest average layover time for this route: 1h 28m.

When to book flights from Boston to Porto

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

Fastest flight time

Direct flights

Airports in Porto

How far is Boston Logan Intl to Porto by plane?

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

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?

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

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

Traveling to a place near Porto?

Why use momondo?

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

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

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

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

Get notified when prices go down