Cheap flights from Philadelphia to Porto from $341
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 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.Find the cheapest flights from Philadelphia to Porto
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Air Canada flights from Philadelphia to Porto
Our best Air Canada deals on Philadelphia to Porto flight tickets
Iberia flights from Philadelphia to Porto
Our best Iberia deals on Philadelphia to Porto flight tickets
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 December is, on average, the cheapest month to fly to Porto from Philadelphia, with most prices found around $656. If you aren’t able to travel during the month of December, then book flights to Porto from Philadelphia during January instead. Flights to Porto in January, while not as cheap as those in December, still average around $678.
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 14 weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $807 when searching 14 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 $614 on momondo.
What is the cheapest airline that flies from Philadelphia to Porto?
Air Canada, Lufthansa, and TAP AIR PORTUGAL are the most popular carriers operating from Philadelphia to Porto
What airlines fly to Porto?
TAP AIR PORTUGAL, United Airlines and Lufthansa are the top three most popular airlines that fly to Porto from Philadelphia according to our data. TAP AIR PORTUGAL is the first choice among our users, with 80% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 12 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.
When to book flights from Philadelphia to Porto
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
How far is Philadelphia to Porto by plane?
A flight from Philadelphia to Porto will travel around 3401.6 mi. 10h 15m 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?
As of June 2025, there are 6 operators available to choose from 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?
Based on momondo bookings for flights between Philadelphia and Porto, the leading airline is Lufthansa, making up 33% of the total bookings. Other popular airlines include American Airlines with 19%, United Airlines with 19%, and Iberia with 13%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $567 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $607 | Free Cancellation | Rating 7.0 2,776 reviews | |||
| PriceFrom $612 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $617 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom $642 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsWhy 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.