Cheap flights from Philadelphia (PHL) to Porto (OPO) from $623

This is the cheapest one-way flight price, found on 10/1. Prices may vary by date and flight preferences.
PHL — OPO
Oct 8 — Oct 151

The best prices from Philadelphia to Porto are usually found in March or February, booked 38 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from Philadelphia (PHL) to Porto (OPO)

All the information you need to plan the best PHL to OPO flight in 2023: compare Philadelphia to Porto flight prices with the expected peak season, weather and rainfall in Porto.

Popular in

August

Cheapest in

March

Average price

$706

Round-trip from

$449
High demand for flights, 36% potential price rise
Best time to find cheap flights, 36% potential price drop
Average for round-trip flights in October 2023
From Philadelphia to Porto

PHL - OPO

Price

$449 - $1,232

OPO

Temperature

48.2 - 68 °F

OPO

Rainfall

0.7 - 7.7 inches

What is the cheapest day to fly round-trip from Philadelphia to Porto?

Users have found that flying from Philadelphia to Porto on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 71% by booking at least 39 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Philadelphia to Porto within the next two weeks, with the cheapest ticket starting at $1,074.

What is the cheapest month to fly from Philadelphia to Porto?

The best pricing can be found in the month of March. Prices to Porto from Philadelphia average $852. You can even find prices in March for less than $852, as users have found deals to Porto from as low as $490. The month of August appears to be one of the more expensive times to travel to Porto from Philadelphia. Flying in the targeted month can save you up to 55%.

When is the cheapest time to fly from Philadelphia to Porto (PHL - OPO)?

One of the essential ways to save on airfare from Philadelphia to Porto is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 55% on airfare.

Cheap Delta flights from Philadelphia to Porto

Take a look at some of the lowest-priced Delta flights heading from Philadelphia to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Lufthansa flights from Philadelphia to Porto

To aid your search, here are some of the cheapest Lufthansa flights we've found from Philadelphia to Porto. Deals frequently update to provide users with more options.

Cheap Philadelphia to Porto flights in October & November 2023

The best prices found for PHL to OPO flights for October, November
Scroll through some of the best deals on flights from Philadelphia to Porto in 2023. More deals are always being added, so be sure to check back regularly.

Philadelphia to Porto 2023 flight deals

Cheap flights to Porto from Philadelphia found for this year
Scroll through some of the best deals on flights from Philadelphia to Porto in 2023. More deals are always being added, so be sure to check back regularly.

Find flights from Philadelphia to Porto within your budget

Use the slider to find flights from Philadelphia to Porto that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$623 - $752

Route

Depart

Return

Price

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/13

1 stop18h 55m

Porto

Mon 11/20

1 stop21h 50m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 11/13

2 stops18h 18m

Porto

Mon 11/20

1 stop30h 05m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 11/22

2 stops16h 10m

Porto

Wed 11/29

2 stops21h 20m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 11/1

2 stops24h 20m

Porto

Wed 11/8

1 stop15h 10m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 11/1

2 stops20h 05m

Porto

Wed 11/8

2 stops21h 20m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 10/18

2 stops21h 24m

Porto

Fri 10/27

2 stops23h 56m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Thu 11/9

1 stop16h 25m

Porto

Fri 11/17

2 stops33h 41m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Fri 2/23

1 stop10h 55m

Porto

Sat 3/2

2 stops16h 45m

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Fri 2/23

2 stops18h 45m

Porto

Sat 3/2

2 stops19h 04m

Flights are sorted by cheapest first

Deals found on 10/1

Reviews of airlines servicing Porto

Peruse reviews from past customers who have flown with Delta, Lufthansa and Air Canada from Philadelphia to Porto to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Delta
7.9
Good
3,023 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

KLM
7.5
Good
196 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

United Airlines
7.4
Good
1,890 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Iberia
7.0
Good
807 reviews
Delta
7.9
Good
3,023 reviews

Boarding

8.0

Food

7.2

Overall

7.9

Entertainment

7.8

Crew

8.5

Comfort

7.9

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Related info for your journey

Useful info, stats and facts about Philadelphia to Porto flights.

Can I find flights from Philadelphia to Porto for under $700 on Cheapflights?

Yes, there are multiple flights from Philadelphia to Porto for under $700. The cheapest flight booked recently is on Iberia for just $623, but on average you can expect to pay $682.

What are the cheapest airlines flying from Philadelphia to Porto round-trip?

According to our current data, Iberia ($623), American Airlines ($629), and Lufthansa ($648) offers the cheapest pricing from Philadelphia to Porto. Iberia is currently priced 26% below the average price you’ll pay for this route.

What are the most popular airlines that fly from Philadelphia to Porto?

What does PHL to OPO mean?

PHL stands for Philadelphia Airport, while OPO stands for Porto Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

Alternative routes for Philadelphia to Porto

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Philadelphia to Porto

The chart below displays the airlines Cheapflights users traveling from Philadelphia to Porto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$514Average$814FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest$583Average$1,270FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
British AirwaysCheapest$594Average$823FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest$620Average$924FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$661Average$1,289FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

What makes Cheapflights the go-to destination for all your flight needs

How does Cheapflights help users find flights from Philadelphia to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Philadelphia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Porto?

Cheapflights helps you find that perfect flight to Porto from Philadelphia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Philadelphia to Porto with no change fees?

Yes, we can. To see specific flights from Philadelphia to Porto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Philadelphia to Porto become cheaper?

Yes! Start tracking prices for Philadelphia to Porto flights today and get alerted whenever prices for these flights change. To access this feature, navigate to the search form above to perform a search, which will then prompt you for a valid email address to use the tool.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.