Which airlines fly to Porto?

When flying to Porto from United States, momondo travelers will most often fly with one of these popular airlines: TAP AIR PORTUGAL, United Airlines, Delta or Iberia. Depending on what airport in United States you fly from, you may be able to find flights with any of these popular airlines.

Delta Flights to Porto

Delta is a popular choice for users traveling to Porto. It operates 18 flights every week to Porto, most often flying from Amsterdam Schiphol. Delta ticket prices will depend on when and where you need to fly from - deals as low as $505 (from Atlanta Hartsfield-Jackson) have been found by momondo users. In 7,994 reviews, momondo users have rated Delta at an average score of 7.9/10.

KLM (7.7/10, 1,406 reviews) is also a popular choice for flights to Porto, with deals from as low as $394 from Atlanta Hartsfield-Jackson, round-trip. With 17 KLM flights to Porto on average each week, prices can vary significantly by origin and availability.

How long does it take to fly to Porto?

Flight times from United States to Porto vary, but if you’re flying out of Los Angeles and flying into Porto (one of the most popular routes), then the duration is 17h 15m on average. Another popular route from United States to Porto is flying from Miami to Porto, which will take roughly 10h 30m. Keep in mind that layovers or delays could extend your travel time.

$247 Cheap Flights to Porto in 2025/26

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Find the cheapest flights from the United States to Porto

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:05 pm - 3:15 pmJFK-OPO

12h 10m1 stop

8:10 pm - 5:50 pmOPO-JFK

26h 40m1 stop

$401Air Europa

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Wed, Nov 26 - Mon, Dec 8

11:45 pm - 8:10 amJFK-OPO

27h 25m1 stop

9:55 pm - 10:00 pmOPO-JFK

29h 05m1 stop

$407Multiple Airlines

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Sun, Jan 11 - Wed, Jan 21

9:59 am - 10:30 amBOS-OPO

19h 31m2 stops

6:00 am - 11:54 pmOPO-BOS

22h 54m2 stops

$409Delta

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Mon, Nov 10 - Wed, Nov 19

7:10 pm - 1:05 pmORD-OPO

11h 55m1 stop

6:55 am - 2:45 pmOPO-ORD

13h 50m1 stop

$413TAP AIR PORTUGAL

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Wed, Dec 3 - Sun, Dec 14

6:05 pm - 5:00 pmBOS-OPO

17h 55m1 stop

6:00 pm - 8:10 pmOPO-BOS

31h 10m1 stop

$413TAP AIR PORTUGAL

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Thu, Feb 5 - Wed, Feb 11

9:20 pm - 11:45 amBOS-OPO

9h 25m1 stop

8:20 am - 7:50 pmOPO-BOS

16h 30m1 stop

$420Iberia

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Sun, Jan 18 - Sun, Mar 1

12:03 pm - 7:40 amBOS-OPO

14h 37m2 stops

8:45 am - 8:55 pmOPO-BOS

17h 10m1 stop

$426Iberia

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Wed, Dec 3 - Sun, Dec 21

9:30 am - 9:30 amBOS-OPO

19h 00m2 stops

12:35 pm - 11:48 pmOPO-BOS

15h 13m2 stops

$428United Airlines

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Thu, Mar 5 - Wed, Mar 18

6:25 pm - 9:30 amBOS-OPO

10h 05m1 stop

6:00 am - 4:00 pmOPO-BOS

15h 00m1 stop

$430United Airlines

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Sat, Feb 28 - Tue, Mar 31

1:10 pm - 10:30 amBOS-OPO

16h 20m2 stops

4:20 pm - 6:23 pmOPO-BOS

31h 03m2 stops

$433Delta

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Mon, Mar 2 - Mon, Mar 30

Fly from

Route

Depart

Return

Price

New YorkPorto

JFK - OPO

JFKOPO

New York John F Kennedy Intl

Wed 11/26

10:05 pm-3:15 pm

1 stop12h 10m

Porto

Mon 12/8

8:10 pm-5:50 pm

1 stop26h 40m

$401

New YorkPorto

JFK - OPO

JFKOPO

New York John F Kennedy Intl

Sun 1/11

11:45 pm-8:10 am

1 stop27h 25m

Porto

Wed 1/21

9:55 pm-10:00 pm

1 stop29h 05m

$407

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 11/10

9:59 am-10:30 am

2 stops19h 31m

Porto

Wed 11/19

6:00 am-11:54 pm

2 stops22h 54m

$409

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 12/3

7:10 pm-1:05 pm

1 stop11h 55m

Porto

Sun 12/14

6:55 am-2:45 pm

1 stop13h 50m

$413

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 2/5

6:05 pm-5:00 pm

1 stop17h 55m

Porto

Wed 2/11

6:00 pm-8:10 pm

1 stop31h 10m

$413

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 1/18

9:20 pm-11:45 am

1 stop9h 25m

Porto

Sun 3/1

8:20 am-7:50 pm

1 stop16h 30m

$420

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Wed 12/3

12:03 pm-7:40 am

2 stops14h 37m

Porto

Sun 12/21

8:45 am-8:55 pm

1 stop17h 10m

$426

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 3/5

9:30 am-9:30 am

2 stops19h 00m

Porto

Wed 3/18

12:35 pm-11:48 pm

2 stops15h 13m

$428

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sat 2/28

6:25 pm-9:30 am

1 stop10h 05m

Porto

Tue 3/31

6:00 am-4:00 pm

1 stop15h 00m

$430

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 3/2

1:10 pm-10:30 am

2 stops16h 20m

Porto

Mon 3/30

4:20 pm-6:23 pm

2 stops31h 03m

$433

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Porto flights insights and trends

Explore insights for your Porto flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Porto?

The month of March is, on average, the cheapest month to fly to Porto from United States, with most prices found around $589. If you aren’t able to travel during the month of March, then book flights to Porto from United States during February instead. Flights to Porto in February, while not as cheap as those in March, still average around $599.

What is the absolute cheapest flight to Porto?

See prices from:

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 Wednesday when prices can be found for as low as $804. 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 Friday because tickets tend to average around $1,020. 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 United States to Porto when you can find flight prices for as low as $435. 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 afternoon when prices are $1,129 on average. Flights to Porto from United States in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Porto from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $674 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from United States for as low as $580 on momondo.

Cheapest flights to Porto

Find the cheapest flights to Porto from your nearest city or airport

Find flights from Los Angeles to Porto

CHEAPEST MONTH TO FLY TO PORTO FROM LOS ANGELES	February	26% cheaper	Flying from Los Angeles to Porto costs on average just $687 in February
MOST EXPENSIVE MONTH TO FLY TO PORTO FROM LOS ANGELES	December	28% more expensive	It costs about $1,186 for flights to Porto from Los Angeles in December
MOST POPULAR MONTH TO FLY TO PORTO FROM LOS ANGELES	May	371% more users visited	More momondo users searched in flights to Porto from Los Angeles in May than any other month

Cheap Porto flight deals and tips

Summary info about Porto flight prices, duration and airlines

Best One-Way Price	$247
Best Round-Trip Price	$401
Fastest flight time	11h 45m
Popular in	December

The best one-way flight price to Porto from United States in the last 72 hours is $247 (Boston Logan Intl to Porto).

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The best round-trip flight price to Porto from United States in the last 72 hours is $401 (New York John F Kennedy Intl to Porto).

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The fastest flight to Porto from United States takes 11h 45m (New York John F Kennedy Intl to Porto).

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December has the highest demand for flights to Porto, with a 0% price increase on average.

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Frequently asked questions about flying to Porto

What is there to do in Porto when it’s raining?

When planning your flight to Porto, it is important to be aware that some months are not as ideal as others. Specifically, the months of January, February, or October could carry a higher chance of rain, as Porto sees up to 5.1 inches or more. There are still things to do in Porto even when it's raining, but be aware that rain is highly probable in the area. Many tourists kill time during rain and storms by going to shopping centers in the area, like Mercado do Bolhão.

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

In general, most travelers find the cheapest time to book a flight to Porto is about 83 days prior to their departure date when tickets on average are $810. In the past 72 hours, momondo users found flights from United States to Porto for as low as $592.

When did momondo last update prices for flights to Porto Airport?

Prices for flights to Porto Airport refresh daily.

How many operators does momondo search for flights to Porto Airport?

As of October 2025, there are 38 operators available to choose from for flights to Porto Airport.

How old do you have to be to fly to Porto Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel 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.

Vila Nova de Gaia

Coimbra

Aveiro

Braga

Matosinhos

Esposende

Lamego

Guimarães

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 to Porto?

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

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

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

How can momondo help me find flights to Porto?

Once you have performed a search for flights to Porto, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track flight prices for Porto and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.