$382+ Cheap flights from Portugal to O'Hare Intl (ORD)
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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Aug 24 — Aug 311
Round-trip
1 adult, Economy
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Cheapest flights from Portugal to O'Hare IntlExplore the most affordable flight options available from Portugal to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.
Explore the most affordable flight options available from Portugal to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.
This deal was found by Cheapflights users on 7/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:20 am
LIS
- ORD
1 stop14h 35m
British Airways
Fri 9/187:05 pm
ORD
- LIS
1 stop16h 55m
British Airways
Deal found 7/22![British Airways logo]()
$535
This Bravofly deal was found by Cheapflights users on 7/22. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:35 am
LIS
- ORD
1 stop15h 25m
Multiple Airlines
Sun 8/98:45 pm
ORD
- LIS
1 stop13h 40m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$554
This Rumbo deal was found by Cheapflights users on 7/20. 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 10/286:30 am
LIS
- ORD
1 stop14h 40m
Multiple Airlines
Sun 11/155:10 pm
ORD
- LIS
1 stop12h 55m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$570
This Ticket deal was found by Cheapflights users on 7/22. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Sat 9/59:15 pm
ORD
- LIS
1 stop19h 55m
British Airways
Deal found 7/22![British Airways logo]()
$576
This Booking.com deal was found by Cheapflights users on 7/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:30 am
LIS
- ORD
1 stop14h 25m
Multiple Airlines
Sun 11/295:10 pm
ORD
- LIS
1 stop12h 55m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$578
This British Airways deal was found by Cheapflights users on 7/22. 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.
Thu 9/106:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Wed 9/235:00 pm
ORD
- LIS
1 stop16h 40m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$579
This Cheapflightsfares deal was found by Cheapflights users on 7/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:35 am
LIS
- ORD
1 stop15h 25m
Finnair
Wed 10/2110:20 pm
ORD
- LIS
1 stop19h 05m
Finnair
Deal found 7/21![Finnair logo]()
$581
This British Airways deal was found by Cheapflights users on 7/22. 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.
Mon 9/218:45 pm
LIS
- ORD
1 stop23h 40m
Multiple Airlines
Wed 9/3010:25 pm
ORD
- LIS
1 stop13h 30m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$584
This Gotogate deal was found by Cheapflights users on 7/22. 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.
Thu 9/311:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Thu 9/109:15 pm
ORD
- LIS
1 stop14h 55m
British Airways
Deal found 7/22![British Airways logo]()
$587
This Rumbo deal was found by Cheapflights users on 7/21. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Tue 8/259:00 pm
ORD
- FAO
1 stop16h 25m
Aer Lingus
Deal found 7/21![Aer Lingus logo]()
$589
This Rumbo deal was found by Cheapflights users on 7/23. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Mon 8/243:45 pm
ORD
- FAO
1 stop12h 50m
Aer Lingus
Deal found 7/23![Aer Lingus logo]()
$590
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:10 am
FAO
- ORD
1 stop33h 50m
British Airways
Sun 8/239:15 pm
ORD
- FAO
1 stop31h 05m
British Airways
Deal found 7/21![British Airways logo]()
$594
Best flights from Portugal to O'Hare IntlDiscover carefully curated flight deals from Portugal to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2026.
Discover carefully curated flight deals from Portugal to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2026.
This Finnair deal was found by Cheapflights users on 7/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:30 am
LIS
- ORD
1 stop14h 25m
Multiple Airlines
Wed 1/136:50 pm
ORD
- LIS
1 stop14h 00m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$580
This Rumbo deal was found by Cheapflights users on 7/23. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Mon 8/243:45 pm
ORD
- FAO
1 stop12h 50m
Aer Lingus
Deal found 7/23![Aer Lingus logo]()
$590
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:10 am
FAO
- ORD
1 stop33h 50m
British Airways
Sun 8/239:15 pm
ORD
- FAO
1 stop31h 05m
British Airways
Deal found 7/21![British Airways logo]()
$594
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Sun 8/3011:05 am
LIS
- ORD
1 stop17h 55m
American Airlines
Sun 9/139:15 pm
ORD
- LIS
1 stop14h 30m
American Airlines
Deal found 7/25![American Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Sun 9/65:00 am
ORD
- OPO
1 stop19h 55m
United Airlines
Deal found 7/23![United Airlines logo]()
$631
This SWISS deal was found by Cheapflights users on 7/23. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:30 pm
FAO
- ORD
1 stop24h 05m
SWISS
Mon 8/244:30 pm
ORD
- FAO
2 stops19h 50m
SWISS
Deal found 7/23![SWISS logo]()
$783
This British Airways deal was found by Cheapflights users on 7/20. 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.
Wed 8/2611:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Sat 9/59:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 7/20![British Airways logo]()
$598
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 11/2011:05 am
LIS
- ORD
2 stops17h 03m
American Airlines
Mon 11/235:10 pm
ORD
- LIS
1 stop12h 55m
American Airlines
Deal found 7/24![American Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Sat 9/55:00 am
ORD
- OPO
1 stop19h 55m
United Airlines
Deal found 7/24![United Airlines logo]()
$631
This Lufthansa deal was found by Cheapflights users on 7/22. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:05 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Tue 9/292:40 pm
ORD
- LIS
1 stop14h 35m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$640
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:25 pm
OPO
- ORD
2 stops17h 12m
British Airways
Wed 8/196:05 pm
ORD
- OPO
1 stop19h 00m
British Airways
Deal found 7/21![British Airways logo]()
$600
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/236:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Sat 9/51:30 pm
ORD
- OPO
1 stop11h 25m
United Airlines
Deal found 7/21![United Airlines logo]()
$632
This British Airways deal was found by Cheapflights users on 7/24. 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.
Fri 8/2811:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Sat 9/127:05 pm
ORD
- LIS
1 stop17h 00m
British Airways
Deal found 7/24![British Airways logo]()
$601
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Fri 8/288:40 am
ORD
- OPO
1 stop16h 20m
United Airlines
Deal found 7/24![United Airlines logo]()
$634
This British Airways deal was found by Cheapflights users on 7/24. 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.
Wed 9/211:05 am
LIS
- ORD
1 stop11h 56m
British Airways
Wed 9/98:50 pm
ORD
- LIS
1 stop12h 50m
British Airways
Deal found 7/24![British Airways logo]()
$605
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Sat 9/197:45 pm
ORD
- OPO
1 stop29h 10m
United Airlines
Deal found 7/24![United Airlines logo]()
$636
This British Airways deal was found by Cheapflights users on 7/22. 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.
Mon 9/2111:00 am
LIS
- ORD
1 stop13h 15m
British Airways
Thu 10/17:05 pm
ORD
- LIS
1 stop14h 25m
British Airways
Deal found 7/22![British Airways logo]()
$610
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Thu 9/1010:50 am
ORD
- OPO
2 stops18h 25m
United Airlines
Deal found 7/20![United Airlines logo]()
$638
This British Airways deal was found by Cheapflights users on 7/24. 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.
Mon 9/76:45 pm
LIS
- ORD
1 stop25h 05m
British Airways
Mon 9/149:15 pm
ORD
- LIS
1 stop12h 30m
British Airways
Deal found 7/24![British Airways logo]()
$613
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:05 am
LIS
- ORD
2 stops21h 21m
United Airlines
Fri 8/285:29 pm
ORD
- LIS
1 stop32h 51m
United Airlines
Deal found 7/20![United Airlines logo]()
$646
This British Airways deal was found by Cheapflights users on 7/22. 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.
Sat 9/57:10 am
LIS
- ORD
1 stop14h 45m
British Airways
Sat 9/127:05 pm
ORD
- LIS
1 stop15h 15m
British Airways
Deal found 7/22![British Airways logo]()
$614
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:25 am
LIS
- ORD
2 stops19h 01m
United Airlines
Mon 8/172:31 pm
ORD
- LIS
1 stop11h 49m
United Airlines
Deal found 7/20![United Airlines logo]()
$646
This British Airways deal was found by Cheapflights users on 7/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:00 pm
FAO
- ORD
1 stop25h 55m
British Airways
Sun 9/209:15 pm
ORD
- FAO
1 stop31h 05m
British Airways
Deal found 7/19![British Airways logo]()
$778
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:25 pm
FAO
- ORD
1 stop27h 30m
United Airlines
Sun 9/208:42 am
ORD
- FAO
2 stops19h 13m
United Airlines
Deal found 7/23![United Airlines logo]()
$798
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1112:35 pm
OPO
- ORD
2 stops16h 40m
United Airlines
Sun 12/2710:32 am
ORD
- OPO
2 stops16h 58m
United Airlines
Deal found 7/24![United Airlines logo]()
$807
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:35 pm
OPO
- ORD
2 stops17h 05m
United Airlines
Mon 9/1411:15 am
ORD
- OPO
2 stops13h 40m
United Airlines
Deal found 7/24![United Airlines logo]()
$807
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Sat 9/56:00 am
OPO
- ORD
2 stops17h 00m
United Airlines
Sat 9/1211:00 am
ORD
- OPO
2 stops14h 00m
United Airlines
Deal found 7/22![United Airlines logo]()
$816
Last-minute flights from Portugal to O'Hare IntlDiscover last-minute flight deals from Portugal to O'Hare Intl. Data last updated July 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to O'Hare Intl. Data last updated July 25, 2026 and is based on user searches.
This Flighttix deal was found by Cheapflights users on 7/22. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:35 am
LIS
- ORD
1 stop15h 25m
Multiple Airlines
Tue 8/188:19 am
ORD
- LIS
1 stop18h 46m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$591
This Bravofly deal was found by Cheapflights users on 7/22. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:35 am
LIS
- ORD
1 stop15h 25m
Multiple Airlines
Sun 8/98:45 pm
ORD
- LIS
1 stop13h 40m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$554
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:25 pm
OPO
- ORD
2 stops17h 12m
British Airways
Wed 8/196:05 pm
ORD
- OPO
1 stop19h 00m
British Airways
Deal found 7/21![British Airways logo]()
$600
This British Airways deal was found by Cheapflights users on 7/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:10 am
FAO
- ORD
1 stop33h 50m
British Airways
Sun 8/239:15 pm
ORD
- FAO
1 stop31h 05m
British Airways
Deal found 7/21![British Airways logo]()
$594
This Rumbo deal was found by Cheapflights users on 7/21. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Tue 8/259:00 pm
ORD
- FAO
1 stop16h 25m
Aer Lingus
Deal found 7/21![Aer Lingus logo]()
$589
This Rumbo deal was found by Cheapflights users on 7/23. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Mon 8/243:45 pm
ORD
- FAO
1 stop12h 50m
Aer Lingus
Deal found 7/23![Aer Lingus logo]()
$590
This Ticket deal was found by Cheapflights users on 7/22. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Sat 9/59:15 pm
ORD
- LIS
1 stop19h 55m
British Airways
Deal found 7/22![British Airways logo]()
$576
This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:35 am
LIS
- ORD
1 stop13h 50m
American Airlines
Sat 9/510:30 pm
ORD
- LIS
1 stop13h 35m
American Airlines
Deal found 7/21![American Airlines logo]()
$595
This British Airways deal was found by Cheapflights users on 7/20. 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.
Wed 8/2611:05 am
LIS
- ORD
1 stop14h 41m
British Airways
Sat 9/59:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 7/20![British Airways logo]()
$598
This Flighttix deal was found by Cheapflights users on 7/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:05 am
LIS
- ORD
1 stop17h 25m
British Airways
Sat 9/121:15 pm
ORD
- LIS
1 stop13h 50m
British Airways
Deal found 7/24![British Airways logo]()
$596
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Sun 8/3011:05 am
LIS
- ORD
2 stops14h 22m
American Airlines
Sun 9/137:05 pm
ORD
- LIS
1 stop16h 40m
American Airlines
Deal found 7/25![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Mon 8/316:35 am
LIS
- ORD
1 stop13h 50m
American Airlines
Mon 9/710:30 pm
ORD
- LIS
1 stop13h 25m
American Airlines
Deal found 7/22![American Airlines logo]()
$594
One-way flights from Portugal to O'Hare IntlSearch for one-way flight options from Portugal to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 25, 2026.
Search for one-way flight options from Portugal to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:45 pm
OPO
- ORD
3 stops54h 05m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/299:35 pm
LIS
- ORD
3 stops26h 15m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:30 pm
OPO
- ORD
3 stops48h 55m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/192:45 pm
LIS
- ORD
2 stops30h 10m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Wed 9/911:20 am
FAO
- ORD
3 stops36h 30m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Tue 9/88:35 pm
LIS
- ORD
3 stops47h 50m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:55 am
LIS
- ORD
3 stops41h 55m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:40 pm
LIS
- ORD
3 stops46h 45m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 9/910:15 pm
OPO
- ORD
3 stops55h 40m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Sat 10/316:50 pm
OPO
- ORD
2 stops26h 40m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 11/35:40 pm
LIS
- ORD
3 stops51h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 9/710:40 pm
OPO
- ORD
3 stops49h 10m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$400
Find flight deals from Portugal to O'Hare Intl
Keep the following information in mind while searching for Portugal to O'Hare Intl flight deals. Data was last updated July 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $535 |
One-way from | $382 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $645 |
Good round-trip deal | $983 or less |
Good one-way deal | $680 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portugal to O'Hare Intl 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 July 25, 2026.
Use the filters below to find and compare flights from Portugal to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Mon 12/14
6:30 am-2:55 pm
1 stop14h 25m
Chicago O'Hare Intl
Wed 1/13
6:50 pm-2:50 pm
1 stop14h 00m
$580
FaroChicago
FAO - ORD
FAOORD
Faro
Thu 8/20
11:45 am-7:15 pm
1 stop13h 30m
Chicago O'Hare Intl
Mon 8/24
3:45 pm-10:35 am
1 stop12h 50m
$590
FaroChicago
FAO - ORD
FAOORD
Faro
Mon 8/17
11:10 am-3:00 pm
1 stop33h 50m
Chicago O'Hare Intl
Sun 8/23
9:15 pm-10:20 am
1 stop31h 05m
$594
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Wed 8/26
11:05 am-7:46 pm
1 stop14h 41m
Chicago O'Hare Intl
Sat 9/5
9:15 pm-6:05 pm
1 stop14h 50m
$598
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Sun 8/30
11:05 am-11:00 pm
1 stop17h 55m
Chicago O'Hare Intl
Sun 9/13
9:15 pm-5:45 pm
1 stop14h 30m
$599
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 11/20
11:05 am-10:08 pm
2 stops17h 03m
Chicago O'Hare Intl
Mon 11/23
5:10 pm-12:05 pm
1 stop12h 55m
$599
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 8/6
12:25 pm-11:37 pm
2 stops17h 12m
Chicago O'Hare Intl
Wed 8/19
6:05 pm-7:05 pm
1 stop19h 00m
$600
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 8/28
11:05 am-7:46 pm
1 stop14h 41m
Chicago O'Hare Intl
Sat 9/12
7:05 pm-6:05 pm
1 stop17h 00m
$601
Quickest round-trip
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Wed 9/2
11:05 am-5:01 pm
1 stop11h 56m
Chicago O'Hare Intl
Wed 9/9
8:50 pm-3:40 pm
1 stop12h 50m
$605
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Mon 9/21
11:00 am-6:15 pm
1 stop13h 15m
Chicago O'Hare Intl
Thu 10/1
7:05 pm-3:30 pm
1 stop14h 25m
$610
Showing 1-10 of 52 resultsSorted by cheapest first
Best time to book a flight from Portugal to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Portugal with our price prediction graph.
LIS-ORD
FAO-ORD
OPO-ORD
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 Portugal to Chicago O'Hare Intl Airport
PT0-ORD
LIS-ORD
FAO-ORD
OPO-ORD
What is the cheapest month to book a flight from Portugal to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $695). Flying from Portugal to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $1,209). 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 PT to ORD?
Find hourly flight availability from Portugal to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2026.
When flying from Portugal to Chicago O'Hare Intl Airport, 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 Portugal to Chicago delayed?
About 22% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 131 minutes.
What is the most punctual flight time for Portugal to Chicago flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Portugal to Chicago flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 22% of flights being delayed.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated July 25, 2026.
Get a feel of what it's like to fly with TAP AIR PORTUGAL from Portugal to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.2
Comfort
7.1
Crew
7.8
Boarding
7.0
Entertainment
6.4
Food
6.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
LIS - ORD
Overall
7.2
Comfort
7.1
Crew
7.8
Boarding
7.0
Entertainment
6.4
Food
6.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
LIS - ORD
Related info for your journey
Find useful and relevant information for your journey from Portugal to O'Hare Intl. 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 Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 25, 2026.
Portugal and O'Hare Intl flights
Browse other Portugal and O'Hare Intl flight options. Last updated on July 25, 2026.
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Portugal to O'Hare Intl flights
Consider these flights traveling from Portugal to O'Hare Intl.
Top airline flying from Portugal to O'Hare Intl
Discover the top airline that operate flights from Portugal to O'Hare Intl. 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 July 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$697 | Average$1,196 | FlexibilityNo cancel fee | On-timeN/A |