Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Philadelphia to Porto from $415

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Porto departing on 11/22. 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

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 Philadelphia to Porto

Cheap round-trip flights

United Airlines Logo
12:40 pm - 9:30 amPHL-OPO
16h 50m2 stops
United Airlines Logo
6:00 am - 4:05 pmOPO-PHL
15h 05m1 stop
$476United Airlines
Find Deal
ב', אוק' 27 - ג', נוב' 4
United Airlines Logo
10:34 am - 9:30 amPHL-OPO
18h 56m2 stops
United Airlines Logo
6:00 am - 4:05 pmOPO-PHL
15h 05m1 stop
$482United Airlines
Find Deal
א', אוק' 26 - ג', נוב' 4
Lufthansa Logo
5:35 pm - 3:40 pmPHL-OPO
17h 05m1 stop
Lufthansa Logo
6:00 am - 4:05 pmOPO-PHL
15h 05m1 stop
$496Lufthansa
Find Deal
א', אוק' 19 - ג', נוב' 4
American Airlines Logo
9:00 pm - 7:40 amPHL-OPO
30h 40m1 stop
American Airlines Logo
8:40 pm - 3:40 pmOPO-PHL
24h 00m1 stop
$514American Airlines
Find Deal
ב', אוק' 27 - ב', נוב' 3
Lufthansa Logo
6:40 pm - 11:40 amPHL-OPO
13h 00m1 stop
Lufthansa Logo
4:15 pm - 4:05 pmOPO-PHL
28h 50m1 stop
$522Lufthansa
Find Deal
ג', אוק' 28 - ד', נוב' 5
Iberia Logo
8:30 pm - 4:00 pmPHL-OPO
15h 30m2 stops
Iberia Logo
8:40 pm - 3:40 pmOPO-PHL
24h 00m1 stop
$537Iberia
Find Deal
ב', אוק' 27 - ב', נוב' 3
Iberia Logo
9:00 pm - 4:00 pmPHL-OPO
15h 00m1 stop
Iberia Logo
8:20 am - 3:40 pmOPO-PHL
12h 20m1 stop
$545Iberia
Find Deal
ב', אוק' 27 - ב', נוב' 3
American Airlines Logo
9:00 pm - 7:40 amPHL-OPO
30h 40m1 stop
American Airlines Logo
8:20 am - 7:51 pmOPO-PHL
16h 31m2 stops
$564American Airlines
Find Deal
ב', אוק' 27 - ב', נוב' 3
British Airways Logo
7:46 pm - 7:40 amPHL-OPO
31h 54m2 stops
British Airways Logo
8:40 pm - 8:25 pmOPO-PHL
28h 45m2 stops
$585British Airways
Find Deal
ד', אוק' 29 - ד', נוב' 5
British Airways Logo
7:55 pm - 7:40 amPHL-OPO
30h 45m1 stop
British Airways Logo
8:40 pm - 4:15 pmOPO-PHL
24h 35m2 stops
$593British Airways
Find Deal
א', נוב' 2 - ש', נוב' 8

Air Canada flights from Philadelphia to Porto

Our best Air Canada deals on Philadelphia to Porto flight tickets
Air Canada
Oct 19
PHL7:30 amPhiladelphia
29h 45m
2 stops
OPO6:15 pmPorto
Nov 4
OPO6:00 amPorto
21h 56m
2 stops
PHL10:56 pmPhiladelphia
$484
Find similar
Air Canada
Sep 22
PHL3:25 pmPhiladelphia
13h 10m
1 stop
OPO9:35 amPorto
Oct 15
OPO9:00 amPorto
17h 38m
2 stops
PHL9:38 pmPhiladelphia
$4,465
Find similar
Air Canada
Sep 22
PHL10:10 amPhiladelphia
18h 25m
2 stops
OPO9:35 amPorto
Oct 15
OPO9:00 amPorto
17h 38m
2 stops
PHL9:38 pmPhiladelphia
$4,470
Find similar

Lufthansa flights from Philadelphia to Porto

Our best Lufthansa deals on Philadelphia to Porto flight tickets
Lufthansa
Oct 19
PHL5:35 pmPhiladelphia
17h 05m
1 stop
OPO3:40 pmPorto
Nov 4
OPO6:00 amPorto
15h 05m
1 stop
PHL4:05 pmPhiladelphia
$496
Find similar
Lufthansa
Oct 28
PHL6:40 pmPhiladelphia
13h 00m
1 stop
OPO11:40 amPorto
Nov 5
OPO4:15 pmPorto
28h 50m
1 stop
PHL4:05 pmPhiladelphia
$522
Find similar
Lufthansa
Oct 27
PHL4:35 pmPhiladelphia
16h 15m
2 stops
OPO12:50 pmPorto
Nov 5
OPO4:15 pmPorto
28h 50m
1 stop
PHL4:05 pmPhiladelphia
$525
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 ספטמבר 14, 2025.
Use the filters below to find and compare flights from Philadelphia to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ב' 10/27

12:40 pm-9:30 am

2 stops16h 50m

Porto

ג' 11/4

6:00 am-4:05 pm

1 stop15h 05m

$476

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

א' 10/26

10:34 am-9:30 am

2 stops18h 56m

Porto

ג' 11/4

6:00 am-4:05 pm

1 stop15h 05m

$482

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

א' 10/19

5:35 pm-3:40 pm

1 stop17h 05m

Porto

ג' 11/4

6:00 am-4:05 pm

1 stop15h 05m

$496

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ב' 10/27

9:00 pm-7:40 am

1 stop30h 40m

Porto

ב' 11/3

8:40 pm-3:40 pm

1 stop24h 00m

$514

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ג' 10/28

6:40 pm-11:40 am

1 stop13h 00m

Porto

ד' 11/5

4:15 pm-4:05 pm

1 stop28h 50m

$522

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ב' 10/27

8:30 pm-4:00 pm

2 stops15h 30m

Porto

ב' 11/3

8:40 pm-3:40 pm

1 stop24h 00m

$537

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ב' 10/27

9:00 pm-4:00 pm

1 stop15h 00m

Porto

ב' 11/3

8:20 am-3:40 pm

1 stop12h 20m

$545

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ב' 10/27

9:00 pm-7:40 am

1 stop30h 40m

Porto

ב' 11/3

8:20 am-7:51 pm

2 stops16h 31m

$564

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

ד' 10/29

7:46 pm-7:40 am

2 stops31h 54m

Porto

ד' 11/5

8:40 pm-8:25 pm

2 stops28h 45m

$585

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

א' 11/2

7:55 pm-7:40 am

1 stop30h 45m

Porto

ש' 11/8

8:40 pm-4:15 pm

2 stops24h 35m

$593

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Philadelphia 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 November is, on average, the cheapest month to fly to Porto from Philadelphia, with most prices found around $667. If you aren’t able to travel during the month of November, then book flights to Porto from Philadelphia during April instead. Flights to Porto in April, while not as cheap as those in November, still average around $677.

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 Sunday when prices can be found for as low as $814. 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 Wednesday because tickets tend to average around $1,097. 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 evening is the cheapest time of day to fly from Philadelphia to Porto when you can find flight prices for as low as $829. Flying to Porto in the evening 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 $951 on average. Flights to Porto from Philadelphia 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 Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $808 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Philadelphia for as low as $653 on momondo.

Can stopping save me money on Philadelphia to Porto flights?

You could potentially save up to 16% on your flight if you consider stops on a Philadelphia to Porto flight.

When to book flights from Philadelphia to Porto

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

Cheap Philadelphia to Porto (PHL to OPO) flight deals and tips

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

Direct flights

None
There are no direct flights from Philadelphia to Porto. There are no popular flight routes from Philadelphia to Porto.
Search flight deals

  • How far is Philadelphia to Porto by plane?

    A flight from Philadelphia to Porto will travel around 3401.6 mi. 12h 40m is a normal flight duration for this route.

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

    Prices for flights from Philadelphia Airport to Porto Airport refresh daily.

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

  • How old do you have to be to fly from Philadelphia Airport to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia 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 airline from Philadelphia to Porto?

Best airlines flying from Philadelphia to Porto

Compare and see reviews for airlines that fly from Philadelphia to Porto with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $567Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $593Free CancellationRating
7.0
2,928 reviews
Search Iberia flights
United AirlinesPriceFrom $601Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights
British AirwaysPriceFrom $616Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
LufthansaPriceFrom $625Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Air CanadaPriceFrom $673Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

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
Esposende
Lamego
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Mira

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Porto. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for Philadelphia to Porto flights, momondo helps you find the right one 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 from Philadelphia to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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
ג' 10/14
ג' 10/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal