PHL - OPO

$626 Find Cheap Flights from Philadelphia to Porto - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$626
Typical prices: $748-$1,104
Multiple Airlines
Sun 11/11Sun 11/18
PHL - OPO • 3 stops
Cheapest non-stop
$755
Typical prices: $1,118-$1,811
Iberia
Fri 4/13Sun 4/29
PHL - OPO • Non-stop
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 42% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $682 (round-trip)
Lisbon Humberto Delgado (LIS)
Shortest trip • 10h 34m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Philadelphia to Porto (PHL-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Porto

Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
6:00 am - 5:00 pmPHL  Philadelphia-OPO Porto
30h 00m3 stops San Juan Luis Munoz Marin Intl Miami Lisbon Humberto Delgado
Multiple Airlines Logo
7:00 am - 9:25 amOPO  Porto-PHL Philadelphia
31h 25m3 stops Lisbon Humberto Delgado Miami San Juan Luis Munoz Marin Intl
$626Multiple Airlines
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
6:00 am - 5:00 pmPHL  Philadelphia-OPO Porto
30h 00m3 stops San Juan Luis Munoz Marin Intl Miami Lisbon Humberto Delgado
Multiple Airlines Logo
5:00 am - 11:54 pmOPO  Porto-PHL Philadelphia
23h 54m2 stops Lisbon Humberto Delgado Miami
$640Multiple Airlines
Wed, Nov 11 - Wed, Nov 18
Multiple Airlines Logo
4:47 pm - 5:00 pmPHL  Philadelphia-OPO Porto
19h 13m2 stops Miami Lisbon Humberto Delgado
Multiple Airlines Logo
5:00 am - 11:54 pmOPO  Porto-PHL Philadelphia
23h 54m2 stops Lisbon Humberto Delgado Miami
$667Multiple Airlines
Mon, Apr 19 - Mon, Apr 26
Iberia Logo
8:00 pm - 8:15 amPHL  Philadelphia-OPO Porto
7h 15mnonstop
Iberia Logo
8:40 pm - 5:35 pmOPO  Porto-PHL Philadelphia
25h 55m1 stop Madrid Barajas
$753Iberia
Mon, Apr 19 - Mon, Apr 26
Iberia Logo
8:00 pm - 8:15 amPHL  Philadelphia-OPO Porto
7h 15mnonstop
Iberia Logo
8:40 pm - 4:10 pmOPO  Porto-PHL Philadelphia
24h 30m2 stops Madrid Barajas Dublin
$754Iberia
Tue, Apr 13 - Thu, Apr 29
Iberia Logo
8:00 pm - 8:15 amPHL  Philadelphia-OPO Porto
7h 15mnonstop
Iberia Logo
10:10 am - 1:40 pmOPO  Porto-PHL Philadelphia
8h 30mnonstop
$755Iberia
Tue, Apr 13 - Thu, Apr 29
United Airlines Logo
1:00 pm - 9:45 amPHL  Philadelphia-OPO Porto
15h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 4:00 pmOPO  Porto-PHL Philadelphia
15h 00m1 stop Frankfurt am Main
$769United Airlines
Mon, Apr 12 - Wed, Apr 28
United Airlines Logo
1:00 pm - 9:45 amPHL  Philadelphia-OPO Porto
15h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 4:00 pmOPO  Porto-PHL Philadelphia
15h 00m1 stop Frankfurt am Main
$773United Airlines
Tue, Apr 13 - Thu, Apr 29
American Airlines Logo
8:00 pm - 8:15 amPHL  Philadelphia-OPO Porto
7h 15mnonstop
American Airlines Logo
10:10 am - 1:40 pmOPO  Porto-PHL Philadelphia
8h 30mnonstop
$778American Airlines
Tue, Apr 13 - Thu, Apr 29
American Airlines Logo
8:15 pm - 4:00 pmPHL  Philadelphia-OPO Porto
14h 45m1 stop Madrid Barajas
American Airlines Logo
10:10 am - 1:40 pmOPO  Porto-PHL Philadelphia
8h 30mnonstop
$786American Airlines
Booking Insights

Price, demand and travel trends for Philadelphia to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Philadelphia to Porto. It’s 23% cheaper than the average day, while Saturday is the most expensive, with prices 5% higher.

What’s the cheapest month to fly from Philadelphia to Porto?

•January is the cheapest month to fly from Philadelphia to Porto at $540 round-trip.
•December ($1,910) and June ($1,198) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 253% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Philadelphia to Porto flights

Low season

December

Cheapest flight

$350
Beat the crowds with an average 69% drop in travelers.
The most popular month to fly with an average 56% increase in travelers.
One-way 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

Your Philadelphia to Porto flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Philadelphia to Porto?

    Three cabin classes are available on flights from Philadelphia to Porto:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Philadelphia to Porto?

    A nonstop flight from Philadelphia to Porto takes 00m, covering 3,403 miles.

  • Do I need a passport to fly from Philadelphia to Porto?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Philadelphia to Porto flight?

    Round-trip flights from Philadelphia to Porto range from $748 to $1,104, with an average of $925 over the past 12 months. Anything below $748 counts as a good deal.

  • How much can I save by taking a layover when flying from Philadelphia to Porto?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $682 round-trip via Frankfurt am Main (FRA), compared to $1,118 for nonstop.

  • What is the standard checked-bag allowance on flights from Philadelphia to Porto?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $100–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airlines offer Wi-Fi on Philadelphia to Porto flights?

    American Airlines is the only airline on the Philadelphia to Porto route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Philadelphia to Porto looking right now?

    One-way fares from Philadelphia to Porto are currently higher than usual. Average one-way flight prices are about $923, which is 131% above the typical average for this route.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Philadelphia to Porto?

    Flights from Philadelphia to Porto usually depart from Philadelphia (PHL) and arrive at Porto (OPO).

  • Which airports do connecting flights from Philadelphia to Porto pass through?

    One-stop flights from Philadelphia to Porto most commonly connect through:

    • Madrid Barajas (MAD) - 52% of one-stop connections
    • Frankfurt am Main (FRA) - 27% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) - 14% of one-stop connections
    • Boston Logan Intl (BOS) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Porto?

    Yes. Flexible dates can save you up to 27% on flights from Philadelphia to Porto. Sunday is the cheapest departure day at $721 round-trip on average, while Saturday is the most expensive at $980, a difference of $259.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Philadelphia to Porto?

    Flying via Lisbon Humberto Delgado (LIS) gives the shortest average 1-stop total travel time at 10h 34m, compared with 12h 18m via Madrid Barajas (MAD) and 12h 30m via Montreal Pierre Elliott Trudeau Intl (YUL).

  • What is the time difference between Philadelphia and Porto?

    Porto is 4 hours ahead of Philadelphia (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Philadelphia to Porto flights?

    Among airlines operating Philadelphia to Porto flights:

    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Philadelphia to Porto flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class
    • Iberia: a cabin bag and a checked bag in Premium Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Philadelphia to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Saturday. On this route, Sunday flights average $721, about $259 less than Saturday fares (26% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Philadelphia to Porto trip for January. Fares historically average $540 round-trip in that month - typically $1,370 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Frankfurt am Main Airport (FRA) can be cheaper than flying direct. The cheapest layover option averages $682 round-trip on this route - about $437 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Opo Hotel Porto Aeroporto

More options for your flight from Philadelphia to Porto

Complete your trip to Porto with a hotel stay or car rental

Car rentals in Porto
Hotels in Porto
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