$210+ Cheap flights from the United States to Porto (OPO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OPO
Nov 21 — Nov 281
Round-trip
1 adult, Economy
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Find cheap flights from USA to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from USA to PortoExplore the most affordable flight options available from USA to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.
Explore the most affordable flight options available from USA to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2026.
This Justfly.com deal was found by Cheapflights users on 10/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 pm -
1 stop12h 10m
Wed 11/111:00 pm -
1 stop13h 30m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$403
This Mytrip deal was found by Cheapflights users on 10/20. 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.
Fri 11/611:50 pm -
1 stop14h 10m
Thu 11/194:00 pm -
1 stop27h 50m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$405
This Booking.com deal was found by Cheapflights users on 10/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 pm -
1 stop13h 10m
Wed 11/188:30 am -
1 stop18h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$406
This Booking.com deal was found by Cheapflights users on 10/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:50 pm -
1 stop21h 10m
Wed 11/1811:00 am -
1 stop15h 30m
Deal found 10/17![TAP AIR PORTUGAL logo]()
$409
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:50 pm -
1 stop13h 10m
Thu 12/36:00 pm -
1 stop25h 50m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$490
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 pm -
2 stops17h 10m
Wed 11/186:25 am -
2 stops20h 05m
Deal found 10/22![Multiple Airlines logo]()
$500
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Mon 11/94:50 pm -
3 stops34h 20m
Wed 11/186:25 am -
2 stops20h 05m
Deal found 10/17![Multiple Airlines logo]()
$515
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
1 stop15h 50m
Wed 11/184:00 pm -
1 stop31h 15m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$532
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
1 stop13h 50m
Sat 11/147:00 am -
1 stop16h 15m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$553
This Booking.com deal was found by Cheapflights users on 10/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:10 pm -
1 stop20h 50m
Tue 11/107:00 am -
1 stop16h 15m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$554
This Rumbo deal was found by Cheapflights users on 10/20. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 pm -
1 stop17h 00m
Thu 11/58:00 pm -
1 stop25h 30m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$555
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 pm -
1 stop17h 00m
Tue 12/86:00 pm -
1 stop27h 30m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$557
Best flights from USA to PortoDiscover carefully curated flight deals from USA to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
Discover carefully curated flight deals from USA to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 22, 2026.
This Justfly.com deal was found by Cheapflights users on 10/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 pm -
1 stop12h 10m
Wed 11/111:00 pm -
1 stop13h 30m
Deal found 10/17![TAP AIR PORTUGAL logo]()
$404
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Fri 11/611:50 pm -
2 stops21h 05m
Wed 11/116:15 am -
2 stops20h 15m
Deal found 10/17![Multiple Airlines logo]()
$605
This Air Europa deal was found by Cheapflights users on 10/17. 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 Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:45 pm -
1 stop16h 35m
Thu 11/127:35 am -
1 stop16h 55m
Deal found 10/17![Air Europa logo]()
$669
This United Airlines deal was found by Cheapflights users on 10/17. 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.
Tue 3/210:10 am -
1 stop16h 20m
Fri 3/56:00 am -
1 stop14h 40m
Deal found 10/17![United Airlines logo]()
$701
This KLM deal was found by Cheapflights users on 10/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/298:30 pm -
Nonstop6h 45m
Mon 12/710:15 am -
Nonstop8h 03m
Deal found 10/20![KLM logo]()
$714
This Delta deal was found by Cheapflights users on 10/19. 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 3/146:30 am -
2 stops22h 05m
Fri 3/195:00 am -
2 stops21h 34m
Deal found 10/19![Delta logo]()
$717
This British Airways deal was found by Cheapflights users on 10/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/298:40 pm -
1 stop15h 05m
Tue 12/86:25 pm -
1 stop23h 10m
Deal found 10/20![British Airways logo]()
$718
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:30 pm -
1 stop13h 35m
Thu 11/195:55 pm -
2 stops24h 30m
Deal found 10/21![Scandinavian Airlines logo]()
$732
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:15 pm -
1 stop31h 40m
Thu 11/194:25 pm -
1 stop23h 35m
Deal found 10/22![Turkish Airlines logo]()
$782
This Justfly.com deal was found by Cheapflights users on 10/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 pm -
1 stop17h 10m
Fri 11/132:30 pm -
1 stop12h 35m
Deal found 10/17![TAP AIR PORTUGAL logo]()
$405
This SWISS deal was found by Cheapflights users on 10/21. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:20 pm -
2 stops18h 05m
Tue 11/2412:05 pm -
1 stop33h 55m
Deal found 10/21![SWISS logo]()
$1,034
This United deal was found by Cheapflights users on 10/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:00 pm -
1 stop16h 30m
Wed 11/2512:05 pm -
1 stop13h 15m
Deal found 10/19![Multiple Airlines logo]()
$670
This Air Europa deal was found by Cheapflights users on 10/19. 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 Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:45 pm -
1 stop16h 35m
Thu 11/1911:35 am -
1 stop12h 55m
Deal found 10/19![Air Europa logo]()
$689
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Wed 2/2411:15 am -
2 stops15h 15m
Wed 3/106:00 am -
1 stop14h 40m
Deal found 10/19![United Airlines logo]()
$705
This Delta deal was found by Cheapflights users on 10/18. 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 4/146:30 pm -
2 stops15h 55m
Tue 4/205:00 am -
1 stop15h 35m
Deal found 10/18![Delta logo]()
$719
This Scandinavian Airlines deal was found by Cheapflights users on 10/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 pm -
2 stops17h 15m
Fri 11/205:45 pm -
1 stop26h 55m
Deal found 10/17![Scandinavian Airlines logo]()
$772
This Finnair deal was found by Cheapflights users on 10/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1112:46 pm -
2 stops13h 54m
Mon 3/18:40 pm -
2 stops30h 49m
Deal found 10/19![Multiple Airlines logo]()
$703
This KLM deal was found by Cheapflights users on 10/18. 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.
Fri 11/68:30 pm -
Nonstop6h 45m
Tue 11/105:00 am -
1 stop14h 00m
Deal found 10/18![KLM logo]()
$778
This Delta deal was found by Cheapflights users on 10/21. 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 1/115:05 pm -
1 stop12h 30m
Tue 1/265:00 am -
2 stops19h 09m
Deal found 10/21![Delta logo]()
$722
This United Airlines deal was found by Cheapflights users on 10/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:45 pm -
Nonstop6h 45m
Sun 12/1312:35 pm -
Nonstop8h 25m
Deal found 10/21![United Airlines logo]()
$724
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/18. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:50 pm -
Nonstop6h 45m
Sat 12/196:00 pm -
1 stop30h 55m
Deal found 10/18![TAP AIR PORTUGAL logo]()
$734
This British Airways deal was found by Cheapflights users on 10/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:30 pm -
1 stop19h 40m
Thu 11/198:20 am -
1 stop17h 30m
Deal found 10/22![British Airways logo]()
$830
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:45 am -
1 stop21h 25m
Sun 11/224:25 pm -
1 stop23h 35m
Deal found 10/22![Turkish Airlines logo]()
$842
This KLM deal was found by Cheapflights users on 10/18. 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.
Thu 2/49:15 am -
2 stops17h 15m
Wed 2/105:00 am -
2 stops19h 11m
Deal found 10/18![KLM logo]()
$782
This Gotogate deal was found by Cheapflights users on 10/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:05 am -
2 stops21h 40m
Fri 12/186:00 am -
1 stop14h 55m
Deal found 10/22![Multiple Airlines logo]()
$720
This Air Europa deal was found by Cheapflights users on 10/20. 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:05 pm -
1 stop12h 10m
Sun 12/611:35 am -
1 stop11h 15m
Deal found 10/20![Air Europa logo]()
$796
This Delta deal was found by Cheapflights users on 10/17. 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 1/176:40 pm -
1 stop10h 55m
Tue 1/265:00 am -
2 stops18h 26m
Deal found 10/17![Delta logo]()
$724
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Mon 2/15:30 pm -
1 stop16h 55m
Thu 2/46:00 am -
1 stop19h 05m
Deal found 10/19![United Airlines logo]()
$727
This KLM deal was found by Cheapflights users on 10/21. 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 1/139:15 am -
2 stops17h 15m
Mon 1/184:10 pm -
1 stop27h 35m
Deal found 10/21![KLM logo]()
$794
This United deal was found by Cheapflights users on 10/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2010:10 pm -
1 stop31h 20m
Mon 3/2912:50 pm -
1 stop32h 55m
Deal found 10/19![Multiple Airlines logo]()
$724
Last-minute flights from USA to PortoDiscover last-minute flight deals from USA to Porto. Data last updated October 22, 2026 and is based on user searches.
Discover last-minute flight deals from USA to Porto. Data last updated October 22, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:10 pm -
1 stop20h 50m
Tue 11/107:00 am -
1 stop16h 15m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$554
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
1 stop15h 50m
Wed 11/184:00 pm -
1 stop31h 15m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$532
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:10 pm -
1 stop13h 50m
Sat 11/147:00 am -
1 stop16h 15m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$553
This Justfly.com deal was found by Cheapflights users on 10/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:50 pm -
1 stop12h 10m
Wed 11/111:00 pm -
1 stop13h 30m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$403
This Mytrip deal was found by Cheapflights users on 10/20. 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.
Fri 11/611:50 pm -
1 stop14h 10m
Thu 11/194:00 pm -
1 stop27h 50m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$405
This Booking.com deal was found by Cheapflights users on 10/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:50 pm -
1 stop21h 10m
Wed 11/1811:00 am -
1 stop15h 30m
Deal found 10/17![TAP AIR PORTUGAL logo]()
$409
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Mon 11/94:50 pm -
3 stops34h 20m
Wed 11/186:25 am -
2 stops20h 05m
Deal found 10/17![Multiple Airlines logo]()
$515
This Gotogate deal was found by Cheapflights users on 10/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:10 pm -
1 stop23h 20m
Mon 11/164:00 pm -
1 stop31h 15m
Deal found 10/18![TAP AIR PORTUGAL logo]()
$559
This Booking.com deal was found by Cheapflights users on 10/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 pm -
1 stop13h 10m
Wed 11/188:30 am -
1 stop18h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$406
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:50 pm -
2 stops17h 10m
Wed 11/186:25 am -
2 stops20h 05m
Deal found 10/22![Multiple Airlines logo]()
$500
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 pm -
1 stop12h 30m
Wed 11/255:00 am -
1 stop16h 30m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$558
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:50 pm -
1 stop13h 10m
Thu 12/36:00 pm -
1 stop25h 50m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$490
One-way flights from USA to PortoSearch for one-way flight options from USA to Porto. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.
Search for one-way flight options from USA to Porto. Find affordable one-way fares based on user searches. Data last updated October 22, 2026.
This Mytrip deal was found by Cheapflights users on 10/19. 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 11/811:50 pm -
1 stop13h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$210
This Mytrip deal was found by Cheapflights users on 10/19. 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.
Tue 11/105:15 pm -
2 stops21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$211
This Booking.com deal was found by Cheapflights users on 10/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:25 pm -
1 stop18h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$212
This Booking.com deal was found by Cheapflights users on 10/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:10 pm -
1 stop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$212
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:25 pm -
1 stop11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 10/2710:20 pm -
2 stops40h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Wed 11/114:35 pm -
1 stop14h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$216
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2811:05 pm -
Nonstop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$216
This Booking.com deal was found by Cheapflights users on 10/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:50 pm -
Nonstop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![TAP AIR PORTUGAL logo]()
$217
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/298:10 pm -
1 stop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 10/22. 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.
Mon 11/94:35 pm -
1 stop14h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$218
This Gotogate deal was found by Cheapflights users on 10/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:45 pm -
Nonstop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![TAP AIR PORTUGAL logo]()
$220
Find flight deals from USA to Porto
Keep the following information in mind while searching for USA to Porto flight deals. Data was last updated October 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $402 (Flightnetwork) |
One-way from | $210 (Mytrip) |
Popular in | December |
Cheapest in | February |
Average price | $865 |
Good round-trip deal | $645 or less |
Good one-way deal | $414 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from USA 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 7,457,451 searches. Data last updated October 22, 2026.
Use the filters below to find and compare flights from the United States to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Fri 11/13
8:10 pm-7:45 am
2 stops29h 35m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$253
BostonPorto
BOS Boston Logan Intl - OPO Porto
BOSOPO
Boston Logan Intl
Tue 10/27
10:20 pm-6:50 pm
2 stops40h 30m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$286
Washington, D.C.Porto
IAD Washington, D.C. Dulles Intl - OPO Porto
IADOPO
Washington, D.C. Dulles Intl
Mon 11/30
5:25 pm-7:45 pm
3 stops21h 20m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$302
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Tue 3/2
1:30 pm-12:50 pm
2 stops16h 20m
Porto
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$314
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Tue 3/2
4:15 pm-12:50 pm
1 stop13h 35m
Porto
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$322
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Wed 1/20
9:50 pm-11:30 pm
1 stop19h 40m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$324
MiamiPorto
MIA Miami - OPO Porto
MIAOPO
Miami
Wed 3/17
11:45 pm-10:00 pm
1 stop18h 15m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$328
DenverPorto
DEN Denver Intl - OPO Porto
DENOPO
Denver Intl
Mon 3/1
7:45 am-9:30 am
2 stops18h 45m
Porto
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$329
MiamiPorto
MIA Miami - OPO Porto
MIAOPO
Miami
Wed 3/17
11:45 pm-10:00 pm
1 stop18h 15m
Porto
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$329
San FranciscoPorto
SFO San Francisco - OPO Porto
SFOOPO
San Francisco
Tue 2/9
3:10 pm-10:00 pm
1 stop22h 50m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$333
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from USA to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from USA with our price prediction graph.
MIA-OPO
BOS-OPO
IAD-OPO
ORD-OPO
SFO-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 the United States to Porto
US0-OPO
MIA-OPO
BOS-OPO
IAD-OPO
ORD-OPO
What is the cheapest month to book a flight from USA to Porto?
Currently, February is the cheapest month in which you can book a flight from USA to Porto (average of $642). Flying from USA to Porto in June is currently the most expensive (average of $1,046). 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.
What is the cheapest time of day to fly from US to OPO?
Find hourly flight availability from USA to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2026.
When flying from USA to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from the United States to Porto delayed?
About 20% of weekly flights between United States and Porto have experienced delays in the past year, with the average delay time being 169 minutes.
What is the most punctual flight time for the United States to Porto flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on the United States to Porto flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 15% of flights being delayed.
How far ahead should I book a flight from USA to Porto?
The best time to book flights from USA to Porto is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
The best insider tips for theUnited States to Porto flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Porto trip
Our travel experts
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 October 22, 2026.
Read through reviews of airlines operating flights from the United States to Porto, such as KLM,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Food
7.4
Boarding
7.8
Comfort
7.7
Crew
8.4
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreArtem,Oct 2026
FCO - AMS
Related info for your journey
Find useful and relevant information for your journey from USA 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
Arcos de Valdevez
Coimbra
Aveiro
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Alternative routes for USA 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.
Search flights from USA to Porto by cabin class
Find flights from USA to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
USA and Porto flights
Browse other USA and Porto flight options. Last updated on October 22, 2026.
Popular flight searches
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 October 22, 2026.
USA to Porto flights
Consider these flights traveling from USA to Porto.
Top 10 airlines flying from USA to Porto
Discover the top 10 airlines that operate flights from USA 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 7,457,451 searches. Data last updated October 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$360 | Average$918 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$361 | Average$813 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$375 | Average$821 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$375 | Average$890 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$376 | Average$932 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$387 | Average$870 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$394 | Average$947 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$394 | Average$986 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$408 | Average$813 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$434 | Average$1,010 | FlexibilityNo cancel fee | On-time67% |