Flights to Porto

$179 Cheap flights to Porto

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Porto departing on 9/3. 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 the United States to Porto

Cheap round-trip flights

United Airlines Logo
12:25 pm - 9:30 amBOS-OPO
16h 05m2 stops
United Airlines Logo
12:35 pm - 12:45 amOPO-BOS
17h 10m2 stops
$423United Airlines
Find Deal
Tue, Nov 4 - Mon, Nov 10
American Airlines Logo
1:01 pm - 7:35 amBOS-OPO
13h 34m2 stops
American Airlines Logo
8:15 am - 7:50 pmOPO-BOS
16h 35m1 stop
$424American Airlines
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Thu, Oct 16 - Thu, Oct 23
Iberia Logo
9:30 pm - 7:55 pmBOS-OPO
17h 25m1 stop
Iberia Logo
8:35 pm - 6:49 pmOPO-BOS
27h 14m2 stops
$429Iberia
Find Deal
Sun, Sep 14 - Wed, Sep 24
Iberia Logo
9:30 pm - 3:55 pmBOS-OPO
13h 25m1 stop
Iberia Logo
8:35 pm - 3:00 pmOPO-BOS
23h 25m1 stop
$430Iberia
Find Deal
Sun, Sep 14 - Wed, Oct 1
TAP AIR PORTUGAL Logo
10:50 pm - 8:30 pmEWR-OPO
16h 40m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 3:20 pmOPO-EWR
26h 15m1 stop
$509TAP AIR PORTUGAL
Find Deal
Sun, Sep 14 - Thu, Oct 16
TAP AIR PORTUGAL Logo
10:45 pm - 10:30 amEWR-OPO
6h 45mnonstop
TAP AIR PORTUGAL Logo
9:15 pm - 3:20 pmOPO-EWR
23h 05m1 stop
$517TAP AIR PORTUGAL
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Sun, Sep 28 - Mon, Oct 6
Delta Logo
7:59 pm - 3:30 pmIAD-OPO
14h 31m2 stops
Delta Logo
9:20 am - 4:20 pmOPO-IAD
12h 00m1 stop
$567Delta
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Wed, Oct 15 - Fri, Oct 24
Delta Logo
9:20 pm - 8:25 amIAD-OPO
30h 05m1 stop
Delta Logo
11:20 am - 7:11 pmOPO-IAD
36h 51m2 stops
$574Delta
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Wed, Sep 24 - Thu, Dec 4
KLM Logo
6:30 pm - 3:30 pmIAD-OPO
16h 00m1 stop
KLM Logo
4:20 pm - 4:20 pmOPO-IAD
29h 00m1 stop
$576KLM
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Sun, Oct 12 - Mon, Oct 20
KLM Logo
4:35 pm - 8:25 amMIA-OPO
34h 50m1 stop
KLM Logo
9:20 am - 11:10 pmOPO-MIA
18h 50m2 stops
$658KLM
Find Deal
Wed, Sep 24 - Fri, Oct 3

momondo Fare Finder

 
Locate flights to Porto that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on August 26, 2025.
Use the filters below to find and compare flights to Porto that are best for you.

Fly from

Route

Depart

Return

Price

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Tue 11/4

12:25 pm-9:30 am

2 stops16h 05m

Porto

Mon 11/10

12:35 pm-12:45 am

2 stops17h 10m

$423

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 10/16

1:01 pm-7:35 am

2 stops13h 34m

Porto

Thu 10/23

8:15 am-7:50 pm

1 stop16h 35m

$424

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 9/14

9:30 pm-7:55 pm

1 stop17h 25m

Porto

Wed 9/24

8:35 pm-6:49 pm

2 stops27h 14m

$429

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 9/14

9:30 pm-3:55 pm

1 stop13h 25m

Porto

Wed 10/1

8:35 pm-3:00 pm

1 stop23h 25m

$430

NewarkPorto

EWR - OPO

EWROPO

Newark

Sun 9/14

10:50 pm-8:30 pm

1 stop16h 40m

Porto

Thu 10/16

6:05 pm-3:20 pm

1 stop26h 15m

$509

NewarkPorto

EWR - OPO

EWROPO

Newark

Sun 9/28

10:45 pm-10:30 am

Nonstop6h 45m

Porto

Mon 10/6

9:15 pm-3:20 pm

1 stop23h 05m

$517

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 10/15

7:59 pm-3:30 pm

2 stops14h 31m

Porto

Fri 10/24

9:20 am-4:20 pm

1 stop12h 00m

$567

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 9/24

9:20 pm-8:25 am

1 stop30h 05m

Porto

Thu 12/4

11:20 am-7:11 pm

2 stops36h 51m

$574

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 10/12

6:30 pm-3:30 pm

1 stop16h 00m

Porto

Mon 10/20

4:20 pm-4:20 pm

1 stop29h 00m

$576

MiamiPorto

MIA - OPO

MIAOPO

Miami

Wed 9/24

4:35 pm-8:25 am

1 stop34h 50m

Porto

Fri 10/3

9:20 am-11:10 pm

2 stops18h 50m

$658

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

Porto flights insights and trends

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

What is the cheapest month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from United States, with most prices found around $573. If you aren’t able to travel during the month of February, then book flights to Porto from United States during March instead. Flights to Porto in March, while not as cheap as those in February, still average around $577.

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 $811. 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 $1,002. 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 $1,135 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 $676 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 $547 on momondo.

Cheapest flights to Porto

Find the cheapest flights to Porto from your nearest city or airport
CHEAPEST MONTH TO FLY TO PORTO FROM LOS ANGELESFebruary30% cheaperFlying from Los Angeles to Porto costs on average just $661 in February
MOST EXPENSIVE MONTH TO FLY TO PORTO FROM LOS ANGELESDecember25% more expensiveIt costs about $1,181 for flights to Porto from Los Angeles in December
MOST POPULAR MONTH TO FLY TO PORTO FROM LOS ANGELESSeptember200% more users visitedMore momondo users searched in flights to Porto from Los Angeles in September than any other month

Cheap Porto flight deals and tips

Summary info about Porto flight prices, duration and airlines

Best One-Way Price

$179

Best Round-Trip Price

$423

Fastest flight time

6h 40m

Popular in

July
The best one-way flight price to Porto from United States in the last 72 hours is $179 (Newark to Porto).
The best round-trip flight price to Porto from United States in the last 72 hours is $423 (Boston Logan Intl to Porto).
The fastest flight to Porto from United States takes 6h 40m (Boston Logan Intl to Porto).
July has the highest demand for flights to Porto, with a 22% price increase on average.

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 51 days prior to their departure date when tickets on average are $787. In the past 72 hours, momondo users found flights from United States to Porto for as low as $549.

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?

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.

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
Guimarães
Lamego
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 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.

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1 adult
Sun 8/31
Sun 9/7

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