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Cheap flights from Boston to Porto from $250

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 9/22. 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

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Find the cheapest flights from Boston to Porto

Cheap round-trip flights

Iberia Logo
10:20 pm - 11:45 amBOS-OPO
9h 25m1 stop
Iberia Logo
12:25 pm - 7:50 pmOPO-BOS
12h 25m1 stop
$370Iberia
Find Deal
Mon, Oct 27 - Fri, Nov 7
Iberia Logo
4:45 pm - 11:45 amBOS-OPO
14h 00m1 stop
Iberia Logo
8:45 am - 8:55 pmOPO-BOS
17h 10m1 stop
$371Iberia
Find Deal
Mon, Nov 24 - Thu, Dec 11
Iberia Logo
5:45 pm - 7:40 amBOS-OPO
9h 55m1 stop
Iberia Logo
8:20 am - 7:50 pmOPO-BOS
16h 30m1 stop
$373Iberia
Find Deal
Mon, Oct 27 - Wed, Nov 12
Delta Logo
10:05 pm - 10:30 amBOS-OPO
32h 25m1 stop
Delta Logo
11:45 am - 7:25 amOPO-BOS
24h 40m2 stops
$414Delta
Find Deal
Sun, Oct 26 - Wed, Nov 12
KLM Logo
6:55 pm - 3:30 pmBOS-OPO
15h 35m1 stop
KLM Logo
6:15 am - 4:30 pmOPO-BOS
15h 15m1 stop
$443KLM
Find Deal
Wed, Aug 20 - Wed, Sep 17
Delta Logo
4:50 pm - 10:40 amBOS-OPO
12h 50m1 stop
Delta Logo
6:15 am - 1:40 pmOPO-BOS
12h 25m1 stop
$455Delta
Find Deal
Wed, Aug 20 - Wed, Sep 10
TAP AIR PORTUGAL Logo
11:15 pm - 10:55 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
6:05 pm - 8:45 pmOPO-BOS
7h 40mnonstop
$467TAP AIR PORTUGAL
Find Deal
Mon, Sep 8 - Mon, Sep 15
TAP AIR PORTUGAL Logo
11:15 pm - 10:55 amBOS-OPO
6h 40mnonstop
TAP AIR PORTUGAL Logo
6:05 pm - 8:45 pmOPO-BOS
7h 40mnonstop
$475TAP AIR PORTUGAL
Find Deal
Sat, Sep 20 - Mon, Oct 6
KLM Logo
8:15 pm - 3:35 pmBOS-OPO
14h 20m1 stop
KLM Logo
8:20 pm - 1:40 pmOPO-BOS
22h 20m1 stop
$480KLM
Find Deal
Wed, Aug 27 - Thu, Sep 11
United Airlines Logo
6:05 am - 9:35 amBOS-OPO
22h 30m2 stops
United Airlines Logo
12:10 pm - 9:47 amOPO-BOS
26h 37m2 stops
$565United Airlines
Find Deal
Mon, Aug 18 - Thu, Aug 28

Iberia flights from Boston to Porto

Our best Iberia deals on Boston to Porto flight tickets
Iberia
Oct 27
BOS10:20 pmBoston Logan Intl
9h 25m
1 stop
OPO11:45 amPorto
Nov 7
OPO12:25 pmPorto
12h 25m
1 stop
BOS7:50 pmBoston Logan Intl
Iberia
Nov 24
BOS4:45 pmBoston Logan Intl
14h 00m
1 stop
OPO11:45 amPorto
Dec 11
OPO8:45 amPorto
17h 10m
1 stop
BOS8:55 pmBoston Logan Intl
Iberia
Oct 27
BOS5:45 pmBoston Logan Intl
9h 55m
1 stop
OPO7:40 amPorto
Nov 12
OPO8:20 amPorto
16h 30m
1 stop
BOS7:50 pmBoston Logan Intl

American Airlines flights from Boston to Porto

Our best American Airlines deals on Boston to Porto flight tickets
American Airlines
Aug 20
BOS11:52 amBoston Logan Intl
14h 43m
2 stops
OPO7:35 amPorto
Nov 12
OPO12:25 pmPorto
12h 25m
1 stop
BOS7:50 pmBoston Logan Intl
American Airlines
Aug 20
BOS11:52 amBoston Logan Intl
14h 43m
2 stops
OPO7:35 amPorto
Nov 12
OPO12:25 pmPorto
16h 19m
2 stops
BOS11:44 pmBoston Logan Intl
American Airlines
Oct 5
BOS4:30 pmBoston Logan Intl
14h 10m
2 stops
OPO11:40 amPorto
Oct 16
OPO12:20 pmPorto
15h 29m
2 stops
BOS10:49 pmBoston Logan Intl

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?

The month of January is, on average, the cheapest month to fly to Porto from Boston, with most prices found around $526. 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 $550.

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 Friday 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 $859. 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 $635. 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 $794 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 3 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $660 when searching 3 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 $651 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 June 2025, prices for Boston to Porto flights are approximately 35% more expensive 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

$250

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 $250. The best round-trip flight deal from Boston to Porto found on momondo in the last 72 hours is $370.
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)

  • 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?

  • 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 $314Free CancellationRating
7.6
66 reviews
Search Azores Airlines flights
IberiaPriceFrom $419Free CancellationRating
7.0
2,776 reviews
Search Iberia flights
SWISSPriceFrom $452Free CancellationRating
7.5
1,623 reviews
Search SWISS flights
KLMPriceFrom $514Free CancellationRating
7.8
1,358 reviews
Search KLM flights
DeltaPriceFrom $514Free CancellationRating
8.0
7,950 reviews
Search Delta flights
LufthansaPriceFrom $515Free CancellationRating
6.7
7,136 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $526Free CancellationRating
7.1
1,885 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $548Free CancellationRating
6.6
7,008 reviews
Search British Airways flights
American AirlinesPriceFrom $551Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
  • TAP AIR PORTUGAL Flights From Boston to Porto

    TAP AIR PORTUGAL operates around 3 flights from Boston to Porto every week. The average price of these flights found in the last 72 hours has been $768, but momondo users have found TAP AIR PORTUGAL deals from Boston to Porto from as low as $526 round-trip. TAP AIR PORTUGAL has been scored 7.1/10 in 1,885 reviews.


Traveling to a place near Porto?

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

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.


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1 adult
Tue 6/17
Tue 6/24

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