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PHL - OPO

$297 Find cheap flights from Philadelphia to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Porto departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Porto, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Cheap flight deals from Philadelphia to Porto (PHL-OPO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:35 pm - 4:45 pmPHL-OPO
17h 10m1 stop
8:40 pm - 1:30 pmOPO-PHL
21h 50m1 stop
Tue, Dec 3 - Tue, Dec 10
5:45 pm - 11:40 amPHL-OPO
12h 55m1 stop
6:00 am - 4:00 pmOPO-PHL
15h 00m1 stop
$529United Airlines
Find Deal
Wed, Dec 4 - Thu, Dec 12
9:20 pm - 8:00 pmPHL-OPO
17h 40m2 stops
8:20 am - 3:30 pmOPO-PHL
36h 10m2 stops
$555Iberia
Find Deal
Mon, Nov 25 - Mon, Dec 2
9:20 pm - 4:05 pmPHL-OPO
13h 45m1 stop
8:20 am - 2:50 pmOPO-PHL
35h 30m2 stops
$556British Airways
Find Deal
Wed, Dec 4 - Tue, Dec 10
6:35 pm - 11:45 amPHL-OPO
36h 10m2 stops
12:25 pm - 8:05 pmOPO-PHL
36h 40m2 stops
$573British Airways
Find Deal
Mon, Nov 25 - Mon, Dec 2
3:57 pm - 7:35 amPHL-OPO
34h 38m2 stops
8:35 pm - 1:50 pmOPO-PHL
22h 15m1 stop
$586Iberia
Find Deal
Wed, Oct 9 - Tue, Oct 15
11:00 am - 7:35 amPHL-OPO
15h 35m2 stops
12:20 pm - 9:45 amOPO-PHL
26h 25m2 stops
$614American Airlines
Find Deal
Thu, Aug 15 - Thu, Aug 22
1:41 pm - 7:35 amPHL-OPO
12h 54m2 stops
8:15 am - 7:49 pmOPO-PHL
16h 34m2 stops
$755American Airlines
Find Deal
Mon, Sep 16 - Wed, Sep 25
5:35 pm - 3:40 pmPHL-OPO
17h 05m1 stop
6:00 am - 4:00 pmOPO-PHL
15h 00m1 stop
$992Lufthansa
Find Deal
Mon, Jun 24 - Wed, Jul 10
5:35 pm - 11:20 amPHL-OPO
12h 45m1 stop
6:00 am - 4:00 pmOPO-PHL
15h 00m1 stop
$1,252Lufthansa
Find Deal
Tue, Jul 2 - Tue, Jul 9

Flights from Philadelphia to Porto - Travel Insights & Trends

Get data-powered insights and trends into flights from Philadelphia to Porto to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Philadelphia to Porto?

The average price of all flights from Philadelphia to Porto clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Porto on a Friday and more expensive on a Saturday. On your return trip to Philadelphia, you should consider flying back on a Monday, and avoid Tuesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Philadelphia to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Philadelphia to Porto is February, where tickets cost $567 on average. On the other hand, the most expensive months are July and May, where the average cost of tickets is $1,270 and $1,265 respectively.

Which airlines provide the cheapest flights from Philadelphia to Porto?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Porto from Philadelphia were found on Air France ($594) and United Airlines ($601), and the lowest round-trip tickets were found on United Airlines ($529) and Air Canada ($530).

Good to know

Low season

December

High season

July

Cheapest flight

$297
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 49% increase in price.
Flight from Philadelphia to Porto

When to book flights from Philadelphia to Porto

Are your dates flexible? Find out the best times to travel from Philadelphia to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Porto

  • What is the cheapest flight from Philadelphia to Porto?

    In the last 3 days, the lowest price for a flight from Philadelphia to Porto was $297 for a one-way ticket and $523 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Porto?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Philadelphia and on arrival in Porto.

  • Which aircraft models fly most regularly from Philadelphia to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Porto?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Philadelphia and Porto, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Philadelphia to Porto, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Porto are United Airlines and American Airlines. With an average price for the route of $1,069 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,251 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Philadelphia to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Philadelphia to Porto

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10629 reviews
6.7Food
7.1Entertainment
7.2Comfort
7.7Boarding
8.1Crew
Airline reviews

Why does it have to be painful to fly long distances?

2.0 MediocreJames, Jun 2024SFO - MNL
Read more about United Airlines reviews

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

There were delays on both ends. It made it less than excellent. This plane was great though

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in flight WiFi Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay (especially this much) for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a terrible attitude for no reason, nor will they act the way this woman did. Unacceptable.

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

The flight from Amsterdam to Dallas was great, ok food, good service, great entertainment. But Dallas to SF was very tiring because of two hour delay inside the airplane waiting for AA paper work in 99 degrees in the sun. We had no oxygen and the pilot had to ask everyone to blast the AC because it was getting too hot inside the cabin.

We left our child’s tablet on our seat 12 B on the plane and we can’t get a hold of anyone to try to get help locating the tablet.

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

It was not Iberia. It was with United. It was great!!!

Our flight was delayed by 2-hrs but I understand it was beyond the scope of the crew members

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Other than a late takeoff (not British Airways fault) and some delays with baggage, it was a terrific flight. The crew in business class was superb and the seat and accommodations clean and modern. Could not have asked for more.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Terrible. Missed our flight to Newark as well as our flight to London. Complete disaster

They canceled our flight last minute and we had to get another flight with twice the cost

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from Philadelphia to Porto

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Philadelphia to Porto found on KAYAK in the last 72 hours.
9/18Wed
2 stops
45h 51mPHL-OPO
$297
9/18Wed
3 stops
27h 35mPHL-OPO
$308
9/18Wed
1 stop
12h 25mPHL-OPO
$327
6/24Mon
3 stops
38h 21mPHL-OPO
$500
6/24Mon
2 stopsAir France
17h 20mPHL-OPO
$594
6/24Mon
2 stopsUnited Airlines
34h 00mPHL-OPO
$601
6/24Mon
1 stopLufthansa
17h 05mPHL-OPO
$627
6/24Mon
1 stopLufthansa
17h 05mPHL-OPO
$628
6/24Mon
3 stops
29h 01mPHL-OPO
$704

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Philadelphia - Porto Flights

Departure:

Philadelphia (PHL)United States

Destination:

Porto (OPO)Portugal

Return flight deals:

Porto - Philadelphia

Cabin classes:

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