- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Philadelphia to Porto (PHL-OPO)
Prices were available within the past 7 days and start at $464 for one-way flights and $636 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Frequently asked questions
Travel information
Travel information
Origin airport | Philadelphia Intl. |
Destination airport | Dr. Francisco de Sa Carneiro |
Airlines serving | Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Iberia, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, United |
Roundtrip price | $636 |
Distance | 3406 mi |
Book with confidence
Book with confidence
The cheapest times to fly from Philadelphia to Porto
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Porto are during the month of November. You can find some of the cheapest flights from Philadelphia to Porto with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Philadelphia to Porto
Sunday is one of the best days to book for cheap flights from Philadelphia to Porto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Philadelphia to Porto
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $464 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Porto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Porto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Be inspired and discover more with Expedia
Be inspired and discover more with Expedia
Flights
- Aeromexico
- JetBlue Airways
- American Airlines
- Sun Country Airlines
- Spirit Airlines
- Alaska Airlines
- Air Canada
- Delta
- Qatar Airways
- Iberia
- Finnair
- Aer Lingus
- British Airways
- United
- Frontier Airlines
- Lufthansa
- Frontier Airlines Philadelphia (PHL) to Denver (DEN) flights
- JetBlue Airways Philadelphia (PHL) to Los Angeles (LAX) flights
- Frontier Airlines Philadelphia (PHL) to Dallas (DFW) flights
- Spirit Airlines Philadelphia (PHL) to Houston (IAH) flights
- United Philadelphia (PHL) to New Orleans (MSY) flights
- TAP Portugal Newark Liberty Intl. Airport (EWR) to Porto (OPO) flights
- Air Europa Madrid (MAD) to Porto (OPO) flights
- JetBlue Airways Philadelphia (PHL) to Boston (BOS) flights
- United Philadelphia (PHL) to Phoenix (PHX) flights
- Frontier Airlines Philadelphia (PHL) to Miami (MIA) flights
- American Airlines Philadelphia (PHL) to Montego Bay (MBJ) flights
- Frontier Airlines Philadelphia (PHL) to Tampa (TPA) flights
- Flights from Philadelphia (PHL) to Denver (DEN)
- Flights from Philadelphia (PHL) to Los Angeles (LAX)
- Flights from New York (NYC) to Los Angeles (LAX)
- Flights from Dallas (DFW) to Los Angeles (LAX)
- Flights from Seattle (SEA) to Los Angeles (LAX)
- Flights from Las Vegas (LAS) to Los Angeles (LAX)
- Flights from Denver (DEN) to Las Vegas (LAS)
- Flights from Portland (PDX) to Las Vegas (LAS)
- Flights from Dallas (DFW) to Las Vegas (LAS)
- Flights from Minneapolis (MSP) to Las Vegas (LAS)
- Flights from Atlanta (ATL) to Las Vegas (LAS)
- Flights from Chicago (ORD) to Las Vegas (LAS)
- Flights from Houston (IAH) to Las Vegas (LAS)
- Flights from New York (NYC) to Las Vegas (LAS)
- Flights from Los Angeles (LAX) to Las Vegas (LAS)
- Flights from Detroit (DTW) to Las Vegas (LAS)
- Flights from San Francisco (SFO) to Las Vegas (LAS)
- Flights from Seattle (SEA) to Las Vegas (LAS)
- Flights from Philadelphia (PHL) to Dallas (DFW)
- Flights from Los Angeles (LAX) to Dallas (DFW)
- Flights from Philadelphia (PHL) to Houston (IAH)
- Flights from Philadelphia (PHL) to New Orleans (MSY)
- Flights from Newark Liberty Intl. Airport (EWR) to Porto (OPO)
- Flights from Minneapolis (MSP) to Porto (OPO)
- Flights from Milan (MXP) to Porto (OPO)
- Flights from Chicago (ORD) to Porto (OPO)
- Flights from Boston (BOS) to Porto (OPO)
- Flights from Washington (IAD) to Porto (OPO)
- Flights from Miami (MIA) to Porto (OPO)
- Flights from Washington (DCA) to Porto (OPO)
- Flights from Fort Lauderdale (FLL) to Porto (OPO)
- Flights from Los Angeles (LAX) to Porto (OPO)
- Flights from New York (LGA) to Porto (OPO)
- Flights from New York (JFK) to Porto (OPO)
- Flights from Philadelphia (PHL) to Boston (BOS)
- Flights from Philadelphia (PHL) to Fort Lauderdale (FLL)
- Flights from New York (NYC) to Atlanta (ATL)
- Flights from Seattle (SEA) to Phoenix (PHX)
- Flights from Philadelphia (PHL) to Phoenix (PHX)
- Flights from Los Angeles (LAX) to Seattle (SEA)
- Flights from Boston (BOS) to Miami (MIA)
- Flights from Philadelphia (PHL) to Miami (MIA)
- Flights from Philadelphia (PHL) to Montego Bay (MBJ)
- Flights from Dallas (DFW) to Orlando (MCO)
- Flights from Boston (BOS) to Orlando (MCO)
- Flights from Philadelphia (PHL) to Orlando (MCO)
- Flights from Dallas (DFW) to Cancun (CUN)
- Flights from Dallas (DFW) to Chicago (ORD)
- Flights from Philadelphia (PHL) to Tampa (TPA)
- Flights from Los Angeles (LAX) to New York (NYC)
- Flights from Miami (MIA) to New York (NYC)
- Flights from Atlanta (ATL) to New York (NYC)
- Flights from Dallas (DFW) to New York (NYC)
- Flights from Philadelphia (PHL) to Punta Cana (PUJ)
- Flights to Faro
- Flights to Lisbon District
- Flights to Albufeira
- Flights to Lagoa
- Flights to Obidos
- Flights to Coimbra
- Flights to Loulé
- Flights to Braga
- Flights to Aveiro
- Flights to Calheta
- Flights to Santa Cruz
- Flights to Nazaré
- Flights to Porto
- Flights to Lagos
- Flights to Olhao
- Flights to Ponta Delgada
- Flights to Évora
- Flights to Vila Nova de Gaia
- Flights to Portimão
- Flights to Tavira
- Flights from Central Jersey Regional
- Flights from Princeton
- Flights from Lehigh Valley Intl.
- Flights from Mercer
- Flights from Reading Regional
- Flights from Millville Municipal
- Flights from Atlantic City Intl.
- Flights from Lancaster
- Flights from Wings Field
- Flights from Northeast Philadelphia