$331+ Cheap flights from Philadelphia (PHL) to Porto (OPO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — OPO
Mar 27 — Apr 31
1 adult, Economy
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Find cheap flights from Philadelphia to Porto with Cheapflights
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Cheapest flights from Philadelphia to PortoExplore the most affordable flight options available from Philadelphia to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2026.
Explore the most affordable flight options available from Philadelphia to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2026.
This Air Canada deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:30 pm
PHL
- OPO
2 stops16h 20m
Air Canada
Wed 11/186:00 am
OPO
- PHL
2 stops21h 46m
Air Canada
Deal found 2/21![Air Canada logo]()
$492
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:26 pm
PHL
- OPO
2 stops21h 59m
Delta
Wed 4/155:00 am
OPO
- PHL
2 stops19h 18m
Delta
Deal found 2/23![Delta logo]()
$493
This Air France deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:26 pm
PHL
- OPO
2 stops18h 04m
Multiple Airlines
Tue 3/315:00 am
OPO
- PHL
2 stops16h 53m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$494
This Iberia deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/128:15 pm
PHL
- OPO
1 stop18h 45m
Iberia
Tue 4/288:40 pm
OPO
- PHL
1 stop25h 55m
Iberia
Deal found 2/22![Iberia logo]()
$497
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:58 pm
PHL
- OPO
2 stops18h 22m
Delta
Tue 5/55:00 am
OPO
- PHL
2 stops16h 37m
Delta
Deal found 2/23![Delta logo]()
$498
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:32 pm
PHL
- OPO
2 stops16h 53m
Delta
Fri 4/245:55 am
OPO
- PHL
2 stops23h 03m
Delta
Deal found 2/24![Delta logo]()
$500
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:20 pm
PHL
- OPO
2 stops16h 25m
American Airlines
Mon 11/28:40 pm
OPO
- PHL
1 stop24h 10m
American Airlines
Deal found 2/24![American Airlines logo]()
$501
This British Airways deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:35 pm
PHL
- OPO
1 stop19h 45m
Multiple Airlines
Tue 4/288:40 pm
OPO
- PHL
1 stop26h 00m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$504
This Travelocity deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:15 pm
PHL
- OPO
1 stop30h 25m
Iberia
Wed 4/158:40 pm
OPO
- PHL
1 stop25h 55m
Iberia
Deal found 2/24![Iberia logo]()
$505
This Expedia deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:30 pm
PHL
- OPO
2 stops15h 10m
Multiple Airlines
Mon 11/27:20 pm
OPO
- PHL
2 stops31h 12m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$514
This Iberia deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:25 pm
PHL
- OPO
1 stop18h 35m
Iberia
Wed 4/158:40 pm
OPO
- PHL
1 stop25h 55m
Iberia
Deal found 2/21![Iberia logo]()
$527
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:33 pm
PHL
- OPO
2 stops19h 22m
Delta
Wed 4/155:00 am
OPO
- PHL
2 stops18h 08m
Delta
Deal found 2/21![Delta logo]()
$528
Best flights from Philadelphia to PortoDiscover carefully curated flight deals from Philadelphia to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 25, 2026.
Discover carefully curated flight deals from Philadelphia to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 25, 2026.
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:26 pm
PHL
- OPO
2 stops21h 59m
Delta
Wed 4/155:00 am
OPO
- PHL
2 stops18h 08m
Delta
Deal found 2/21![Delta logo]()
$493
This British Airways deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:45 pm
PHL
- OPO
1 stop20h 35m
Multiple Airlines
Tue 4/288:40 pm
OPO
- PHL
1 stop26h 00m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$505
This United Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:45 pm
PHL
- OPO
2 stops31h 25m
United Airlines
Thu 8/2011:50 am
OPO
- PHL
2 stops36h 28m
United Airlines
Deal found 2/22![United Airlines logo]()
$625
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:08 am
PHL
- OPO
2 stops23h 17m
Delta
Wed 4/1511:45 am
OPO
- PHL
2 stops18h 14m
Delta
Deal found 2/23![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:26 pm
PHL
- OPO
2 stops18h 04m
Delta
Mon 3/305:00 am
OPO
- PHL
2 stops20h 52m
Delta
Deal found 2/21![Delta logo]()
$544
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:25 pm
PHL
- OPO
2 stops22h 35m
Delta
Tue 4/286:15 am
OPO
- PHL
2 stops21h 35m
Delta
Deal found 2/22![Delta logo]()
$550
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:54 pm
PHL
- OPO
2 stops18h 16m
Delta
Fri 4/105:00 am
OPO
- PHL
2 stops23h 59m
Delta
Deal found 2/20![Delta logo]()
$609
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:26 am
PHL
- OPO
2 stops24h 59m
Delta
Tue 6/25:00 am
OPO
- PHL
2 stops23h 07m
Delta
Deal found 2/23![Delta logo]()
$806
Last-minute flights from Philadelphia to PortoDiscover last-minute flight deals from Philadelphia to Porto. Data last updated February 25, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Porto. Data last updated February 25, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2411:30 am
PHL
- OPO
2 stops18h 00m
Multiple Airlines
Mon 3/211:15 am
OPO
- PHL
2 stops37h 10m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$549
This BusinessClass deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:59 pm
PHL
- OPO
2 stops33h 31m
Multiple Airlines
Tue 3/3111:30 am
OPO
- PHL
2 stops34h 42m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:16 am
PHL
- OPO
2 stops19h 14m
Delta
Mon 3/305:00 am
OPO
- PHL
2 stops23h 00m
Delta
Deal found 2/24![Delta logo]()
$544
This BusinessClass deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/94:35 pm
PHL
- OPO
2 stops15h 05m
Lufthansa
Mon 3/304:35 pm
OPO
- PHL
1 stop28h 30m
Lufthansa
Deal found 2/20![Lufthansa logo]()
$619
This oojo deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:40 pm
PHL
- OPO
1 stop16h 05m
British Airways
Wed 3/186:35 pm
OPO
- PHL
1 stop24h 00m
British Airways
Deal found 2/21![British Airways logo]()
$529
This KLM deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:33 pm
PHL
- OPO
2 stops17h 52m
KLM
Wed 3/2511:25 am
OPO
- PHL
2 stops15h 35m
KLM
Deal found 2/21![KLM logo]()
$556
This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/227:35 pm
PHL
- OPO
1 stop17h 05m
British Airways
Tue 4/2112:25 pm
OPO
- PHL
2 stops28h 04m
British Airways
Deal found 2/20![British Airways logo]()
$581
This KLM deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:33 pm
PHL
- OPO
2 stops17h 52m
Multiple Airlines
Mon 3/306:30 am
OPO
- PHL
2 stops15h 23m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$606
This Air France deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:26 pm
PHL
- OPO
2 stops18h 04m
Multiple Airlines
Tue 3/315:00 am
OPO
- PHL
2 stops16h 53m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$494
This Ovago deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:05 am
PHL
- OPO
2 stops24h 25m
Scandinavian Airlines
Tue 3/3111:30 am
OPO
- PHL
2 stops34h 03m
Scandinavian Airlines
Deal found 2/24![Scandinavian Airlines logo]()
$543
One-way flights from Philadelphia to PortoSearch for one-way flight options from Philadelphia to Porto. Find affordable one-way fares based on user searches. Data last updated February 25, 2026.
Search for one-way flight options from Philadelphia to Porto. Find affordable one-way fares based on user searches. Data last updated February 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:30 am
PHL
- OPO
3 stops34h 10m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:10 am
PHL
- OPO
3 stops33h 05m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/191:13 pm
PHL
- OPO
3 stops46h 02m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$344
This Iberia deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:30 pm
PHL
- OPO
1 stop18h 30m
Iberia
Deal found 2/22![Iberia logo]()
$349
This American Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/241:53 pm
PHL
- OPO
2 stops16h 52m
American Airlines
Deal found 2/22![American Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
PHL
- OPO
3 stops46h 30m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/244:00 pm
PHL
- OPO
3 stops42h 40m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/208:36 am
PHL
- OPO
3 stops35h 14m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:47 pm
PHL
- OPO
3 stops39h 13m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:10 am
PHL
- OPO
3 stops29h 05m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/42:19 pm
PHL
- OPO
3 stops20h 41m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$392
Find flight deals from Philadelphia to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $493 (Delta) |
One-way from | $331 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $867 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 25, 2026.
Use the filters below to find and compare flights from Philadelphia to Porto that are best for you.
Fly from
Philadelphia
Fly to
Porto
Route
Depart
Return
Price
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Wed 4/8
12:26 pm-3:25 pm
2 stops21h 59m
Porto
Wed 4/15
5:00 am-6:08 pm
2 stops18h 08m
$493
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Tue 4/7
11:08 am-3:25 pm
2 stops23h 17m
Porto
Wed 4/15
11:45 am-12:59 am
2 stops18h 14m
$493
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Sun 4/12
6:45 pm-8:20 pm
1 stop20h 35m
Porto
Tue 4/28
8:40 pm-5:40 pm
1 stop26h 00m
$505
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Mon 3/9
12:26 pm-10:30 am
2 stops18h 04m
Porto
Mon 3/30
5:00 am-8:52 pm
2 stops20h 52m
$544
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Sun 4/12
6:25 pm-10:00 pm
2 stops22h 35m
Porto
Tue 4/28
6:15 am-10:50 pm
2 stops21h 35m
$550
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Fri 4/3
6:54 pm-6:10 pm
2 stops18h 16m
Porto
Fri 4/10
5:00 am-11:59 pm
2 stops23h 59m
$609
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Thu 8/6
6:45 pm-7:10 am
2 stops31h 25m
Porto
Thu 8/20
11:50 am-7:18 pm
2 stops36h 28m
$625
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Sun 5/17
9:26 am-3:25 pm
2 stops24h 59m
Porto
Tue 6/2
5:00 am-11:07 pm
2 stops23h 07m
$806
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Tue 3/17
5:21 pm-6:20 pm
3 stops44h 59m
$341
PhiladelphiaPorto
PHL - OPO
PHLOPO
Philadelphia
Sun 5/24
4:30 pm-10:00 pm
2 stops24h 30m
$427
Showing 1-10 of 18 results
Compare providers for flights from Philadelphia to Porto
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Porto in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Philadelphia with our price prediction graph.
PHL-OPO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Porto
What is the cheapest month to book a flight from Philadelphia to Porto?
Currently, April is the cheapest month in which you can book a flight from Philadelphia to Porto (average of $376). Flying from Philadelphia to Porto in June is currently the most expensive (average of $622). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Philadelphia to Porto?
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated February 25, 2026.
See what other customers who have flown with United Airlines, American Airlines, and Iberia from Philadelphia to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra
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Alternative routes for Philadelphia to Porto
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Complete your trip
Complete your trip to Porto by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Philadelphia to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Porto flights
Browse other Philadelphia and Porto flight options. Last updated on February 25, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on February 25, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 25, 2026.
Top 4 airlines flying from Philadelphia to Porto
Discover the top 4 airlines that operate flights from Philadelphia to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$489 | Average$795 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$546 | Average$855 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$567 | Average$843 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$568 | Average$921 | FlexibilityNo cancel fee | On-time76% |