$266+ Cheap flights from Portugal to O'Hare Intl (ORD)
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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Aug 31 — Sep 71
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 August 1, 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 August 1, 2026.
This Trip.com deal was found by Cheapflights users on 7/28. 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.
Sat 10/177:55 pm
LIS
- ORD
1 stop22h 05m
Multiple Airlines
Sat 10/319:05 pm
ORD
- LIS
1 stop31h 15m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$266
This Trip.com deal was found by Cheapflights users on 7/28. 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.
Sat 10/176:55 pm
LIS
- ORD
1 stop27h 00m
Multiple Airlines
Sun 11/112:00 pm
ORD
- LIS
1 stop15h 00m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$489
This deal was found by Cheapflights users on 7/27. 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.
Wed 9/27:20 am
LIS
- ORD
1 stop16h 55m
British Airways
Wed 9/99:15 pm
ORD
- LIS
1 stop12h 25m
British Airways
Deal found 7/27![British Airways logo]()
$538
This Finnair deal was found by Cheapflights users on 7/27. 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.
Fri 10/166:35 am
LIS
- ORD
1 stop15h 25m
Finnair
Wed 10/2110:20 pm
ORD
- LIS
1 stop19h 05m
Finnair
Deal found 7/27![Finnair logo]()
$583
This Flighttix deal was found by Cheapflights users on 7/27. 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.
Thu 8/276:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Sat 9/123:00 pm
ORD
- LIS
1 stop12h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$584
This Expedia deal was found by Cheapflights users on 7/27. 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.
Tue 9/111:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Tue 9/83:45 pm
ORD
- FAO
1 stop12h 50m
Aer Lingus
Deal found 7/27![Aer Lingus logo]()
$592
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/276:35 am
LIS
- ORD
1 stop13h 50m
American Airlines
Sat 9/1210:25 pm
ORD
- LIS
1 stop13h 40m
American Airlines
Deal found 7/27![American Airlines logo]()
$593
This Mytrip deal was found by Cheapflights users on 7/27. 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 9/48:55 pm
OPO
- ORD
2 stops25h 10m
Multiple Airlines
Sun 9/206:00 pm
ORD
- OPO
2 stops23h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$596
This Iberia deal was found by Cheapflights users on 7/27. 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.
Thu 9/38:25 am
LIS
- ORD
1 stop12h 00m
Multiple Airlines
Thu 9/109:15 pm
ORD
- LIS
1 stop12h 15m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$596
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/2111:05 am
LIS
- ORD
1 stop14h 41m
American Airlines
Sat 9/510:30 pm
ORD
- LIS
1 stop13h 35m
American Airlines
Deal found 7/27![American Airlines logo]()
$599
This oojo deal was found by Cheapflights users on 7/30. 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 11/114:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Wed 11/187:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 7/30![Scandinavian Airlines logo]()
$600
This British Airways deal was found by Cheapflights users on 7/27. 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 8/2711:05 am
LIS
- ORD
1 stop33h 10m
British Airways
Sat 9/129:15 pm
ORD
- LIS
1 stop13h 05m
British Airways
Deal found 7/27![British Airways logo]()
$601
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 August 1, 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 August 1, 2026.
This Expedia deal was found by Cheapflights users on 7/27. 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.
Tue 9/111:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Tue 9/83:45 pm
ORD
- FAO
1 stop12h 50m
Aer Lingus
Deal found 7/27![Aer Lingus logo]()
$592
This British Airways deal was found by Cheapflights users on 7/27. 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 stop34h 45m
British Airways
Mon 8/249:15 pm
ORD
- FAO
1 stop14h 35m
British Airways
Deal found 7/27![British Airways logo]()
$602
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/246:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Mon 9/75:00 am
ORD
- OPO
1 stop19h 55m
United Airlines
Deal found 7/27![United Airlines logo]()
$630
This SWISS deal was found by Cheapflights users on 7/27. 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 9/17:05 pm
FAO
- ORD
2 stops22h 55m
SWISS
Tue 9/82:40 pm
ORD
- FAO
1 stop21h 40m
SWISS
Deal found 7/27![SWISS logo]()
$664
This Scandinavian Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 11/195:50 pm
OPO
- ORD
1 stop28h 55m
Scandinavian Airlines
Sun 11/227:05 am
ORD
- OPO
2 stops22h 00m
Scandinavian Airlines
Deal found 7/31![Scandinavian Airlines logo]()
$724
This Mytrip deal was found by Cheapflights users on 7/27. 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 9/16:15 pm
FAO
- ORD
3 stops30h 00m
Multiple Airlines
Tue 9/87:25 pm
ORD
- FAO
2 stops22h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$859
This Delta deal was found by Cheapflights users on 7/29. 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 9/205:00 am
LIS
- ORD
1 stop15h 15m
Delta
Sat 9/2611:30 am
ORD
- LIS
2 stops17h 45m
Delta
Deal found 7/29![Delta logo]()
$868
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 11/198:20 am
OPO
- ORD
2 stops20h 08m
American Airlines
Sun 11/222:35 pm
ORD
- OPO
2 stops15h 10m
American Airlines
Deal found 7/31![American Airlines logo]()
$892
This British Airways deal was found by Cheapflights users on 7/27. 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 9/187:20 am
LIS
- ORD
1 stop14h 35m
British Airways
Fri 9/257:05 pm
ORD
- LIS
1 stop14h 30m
British Airways
Deal found 7/27![British Airways logo]()
$613
This United Airlines deal was found by Cheapflights users on 7/28. 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 11/611:20 am
LIS
- ORD
1 stop14h 32m
United Airlines
Sat 11/76:30 pm
ORD
- LIS
1 stop31h 40m
United Airlines
Deal found 7/28![United Airlines logo]()
$685
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 11/204:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Mon 11/237:05 am
ORD
- LIS
2 stops27h 00m
Scandinavian Airlines
Deal found 7/28![Scandinavian Airlines logo]()
$724
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/125:00 am
LIS
- ORD
1 stop15h 15m
Delta
Sat 9/196:00 pm
ORD
- LIS
2 stops14h 55m
Delta
Deal found 7/29![Delta logo]()
$868
This Kissandfly.com deal was found by Cheapflights users on 7/27. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:05 am
FAO
- ORD
3 stops45h 15m
Multiple Airlines
Mon 8/247:25 pm
ORD
- FAO
2 stops31h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$897
This Scandinavian Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 1/187:05 am
LIS
- ORD
1 stop15h 40m
Scandinavian Airlines
Mon 1/256:00 am
ORD
- LIS
2 stops28h 05m
Scandinavian Airlines
Deal found 7/30![Scandinavian Airlines logo]()
$818
This SWISS deal was found by Cheapflights users on 7/30. 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.
Sun 9/138:40 am
OPO
- ORD
1 stop33h 55m
SWISS
Sun 9/202:20 pm
ORD
- OPO
1 stop15h 40m
SWISS
Deal found 7/30![SWISS logo]()
$910
This Delta deal was found by Cheapflights users on 7/29. 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 9/205:00 am
LIS
- ORD
1 stop15h 15m
Delta
Tue 9/2910:29 am
ORD
- LIS
2 stops18h 46m
Delta
Deal found 7/29![Delta logo]()
$868
This United Airlines deal was found by Cheapflights users on 7/29. 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 11/196:00 am
OPO
- ORD
1 stop13h 10m
United Airlines
Sun 11/229:00 am
ORD
- OPO
1 stop18h 30m
United Airlines
Deal found 7/29![United Airlines logo]()
$902
This Mytrip deal was found by Cheapflights users on 7/27. 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 8/247:10 pm
OPO
- ORD
3 stops29h 05m
Multiple Airlines
Mon 9/710:25 pm
ORD
- OPO
2 stops19h 15m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$939
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. 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 9/1910:55 pm
LIS
- ORD
2 stops29h 37m
Scandinavian Airlines
Fri 9/257:15 pm
ORD
- LIS
1 stop20h 50m
Scandinavian Airlines
Deal found 7/29![Scandinavian Airlines logo]()
$866
This Delta deal was found by Cheapflights users on 7/28. 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 9/185:00 am
LIS
- ORD
1 stop15h 15m
Delta
Fri 9/2510:30 am
ORD
- LIS
2 stops16h 20m
Delta
Deal found 7/28![Delta logo]()
$869
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/106:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Sat 9/267:30 am
ORD
- OPO
1 stop20h 15m
United Airlines
Deal found 7/28![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 8/275:00 am
LIS
- ORD
2 stops17h 17m
Delta
Sat 9/126:00 pm
ORD
- LIS
2 stops17h 50m
Delta
Deal found 7/27![Delta logo]()
$873
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/116:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Fri 9/185:00 am
ORD
- OPO
1 stop19h 50m
United Airlines
Deal found 7/28![United Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 7/29. 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.
Sat 9/195:00 am
LIS
- ORD
2 stops17h 14m
Delta
Fri 9/2510:30 am
ORD
- LIS
2 stops16h 20m
Delta
Deal found 7/29![Delta logo]()
$873
This United Airlines deal was found by Cheapflights users on 7/30. 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 12/136:00 am
OPO
- ORD
2 stops18h 21m
United Airlines
Tue 12/228:30 pm
ORD
- OPO
1 stop31h 00m
United Airlines
Deal found 7/30![United Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/311:40 am
FAO
- ORD
1 stop14h 27m
United Airlines
Mon 9/78:45 am
ORD
- FAO
2 stops18h 25m
United Airlines
Deal found 7/28![United Airlines logo]()
$911
This United Airlines deal was found by Cheapflights users on 7/27. 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 7/27![United Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/146:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Mon 9/214:05 pm
ORD
- OPO
1 stop13h 10m
United Airlines
Deal found 7/31![United Airlines logo]()
$930
Last-minute flights from Portugal to O'Hare IntlDiscover last-minute flight deals from Portugal to O'Hare Intl. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to O'Hare Intl. Data last updated August 1, 2026 and is based on user searches.
This British Airways deal was found by Cheapflights users on 7/27. 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 8/126:45 pm
LIS
- ORD
1 stop25h 05m
British Airways
Sun 8/168:45 pm
ORD
- LIS
1 stop13h 40m
British Airways
Deal found 7/27![British Airways logo]()
$608
This Gotogate deal was found by Cheapflights users on 7/27. 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.
Wed 8/1211:25 am
LIS
- ORD
2 stops15h 16m
Air Canada
Sun 8/168:40 pm
ORD
- LIS
1 stop32h 20m
Air Canada
Deal found 7/27![Air Canada logo]()
$668
This British Airways deal was found by Cheapflights users on 7/27. 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 stop34h 45m
British Airways
Mon 8/249:15 pm
ORD
- FAO
1 stop14h 35m
British Airways
Deal found 7/27![British Airways logo]()
$602
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/2111:05 am
LIS
- ORD
1 stop14h 41m
American Airlines
Sat 9/510:30 pm
ORD
- LIS
1 stop13h 35m
American Airlines
Deal found 7/27![American Airlines logo]()
$599
This Gotogate deal was found by Cheapflights users on 7/27. 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.
Mon 8/246:00 am
OPO
- ORD
1 stop19h 55m
Lufthansa
Mon 9/79:40 pm
ORD
- OPO
1 stop19h 45m
Lufthansa
Deal found 7/27![Lufthansa logo]()
$617
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/246:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Mon 9/75:00 am
ORD
- OPO
1 stop19h 55m
United Airlines
Deal found 7/27![United Airlines logo]()
$630
This Gotogate deal was found by Cheapflights users on 7/27. 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.
Mon 8/247:20 pm
OPO
- ORD
1 stop23h 15m
SWISS
Mon 9/77:05 pm
ORD
- OPO
2 stops16h 20m
SWISS
Deal found 7/27![SWISS logo]()
$648
This Gotogate deal was found by Cheapflights users on 7/27. 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.
Mon 8/2411:05 am
OPO
- ORD
2 stops29h 55m
Multiple Airlines
Mon 9/73:40 pm
ORD
- OPO
2 stops16h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$713
This Flighttix deal was found by Cheapflights users on 7/27. 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.
Thu 8/276:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Sat 9/123:00 pm
ORD
- LIS
1 stop12h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/276:35 am
LIS
- ORD
1 stop13h 50m
American Airlines
Sat 9/1210:25 pm
ORD
- LIS
1 stop13h 40m
American Airlines
Deal found 7/27![American Airlines logo]()
$593
This British Airways deal was found by Cheapflights users on 7/27. 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 8/2711:05 am
LIS
- ORD
1 stop33h 10m
British Airways
Sat 9/129:15 pm
ORD
- LIS
1 stop13h 05m
British Airways
Deal found 7/27![British Airways logo]()
$601
This lol.travel deal was found by Cheapflights users on 7/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:15 am
LIS
- ORD
Nonstop9h 25m
TAP AIR PORTUGAL
Sat 9/126:05 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Deal found 7/27![TAP AIR PORTUGAL logo]()
$648
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 August 1, 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 August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/226:20 am
LIS
- ORD
2 stops38h 05m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 7/29![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/88:55 pm
LIS
- ORD
3 stops26h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/168:00 am
OPO
- ORD
2 stops36h 25m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/2110:00 pm
LIS
- ORD
3 stops46h 25m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/235:55 am
LIS
- ORD
2 stops19h 20m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 11/77:15 pm
OPO
- ORD
2 stops25h 40m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/1410:00 pm
LIS
- ORD
3 stops46h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 11/196:50 pm
LIS
- ORD
2 stops26h 05m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 10/176:15 am
LIS
- ORD
3 stops41h 35m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 10/1312:30 pm
LIS
- ORD
3 stops37h 58m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/2410:10 am
FAO
- ORD
3 stops37h 40m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$429
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 August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $266 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,011 |
Good round-trip deal | $983 or less |
Good one-way deal | $633 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 August 1, 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
Quickest round-trip
FaroChicago
FAO - ORD
FAOORD
Faro
Tue 9/1
11:45 am-7:15 pm
1 stop13h 30m
Chicago O'Hare Intl
Tue 9/8
3:45 pm-10:35 am
1 stop12h 50m
$592
FaroChicago
FAO - ORD
FAOORD
Faro
Mon 8/17
11:10 am-3:55 pm
1 stop34h 45m
Chicago O'Hare Intl
Mon 8/24
9:15 pm-5:50 pm
1 stop14h 35m
$602
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 9/18
7:20 am-3:55 pm
1 stop14h 35m
Chicago O'Hare Intl
Fri 9/25
7:05 pm-3:35 pm
1 stop14h 30m
$613
PortoChicago
OPO - ORD
OPOORD
Porto
Mon 8/24
6:00 am-7:55 pm
1 stop19h 55m
Chicago O'Hare Intl
Mon 9/7
5:00 am-6:55 am
1 stop19h 55m
$630
FaroChicago
FAO - ORD
FAOORD
Faro
Tue 9/1
7:05 pm-12:00 pm
2 stops22h 55m
Chicago O'Hare Intl
Tue 9/8
2:40 pm-6:20 pm
1 stop21h 40m
$664
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 11/6
11:20 am-7:52 pm
1 stop14h 32m
Chicago O'Hare Intl
Sat 11/7
6:30 pm-8:10 am
1 stop31h 40m
$685
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 11/19
5:50 pm-4:45 pm
1 stop28h 55m
Chicago O'Hare Intl
Sun 11/22
7:05 am-11:05 am
2 stops22h 00m
$724
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Fri 11/20
4:55 pm-4:45 pm
1 stop29h 50m
Chicago O'Hare Intl
Mon 11/23
7:05 am-4:05 pm
2 stops27h 00m
$724
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Mon 1/18
7:05 am-4:45 pm
1 stop15h 40m
Chicago O'Hare Intl
Mon 1/25
6:00 am-4:05 pm
2 stops28h 05m
$818
FaroChicago
FAO - ORD
FAOORD
Faro
Tue 9/1
6:15 pm-6:15 pm
3 stops30h 00m
Chicago O'Hare Intl
Tue 9/8
7:25 pm-11:30 pm
2 stops22h 05m
$859
Showing 1-10 of 47 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 August 1, 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 August 1, 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.
Entertainment
6.4
Boarding
7.0
Overall
7.2
Comfort
7.1
Crew
7.8
Food
6.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
LIS - ORD
Entertainment
6.4
Boarding
7.0
Overall
7.2
Comfort
7.1
Crew
7.8
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
Naperville
Lake Geneva
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Aurora
Racine
Great Lakes
Janesville
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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 August 1, 2026.
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Browse other Portugal and O'Hare Intl flight options. Last updated on August 1, 2026.
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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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$697 | Average$1,196 | FlexibilityNo cancel fee | On-timeN/A |