$395+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Jun 15 — Jun 221
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 May 16, 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 May 16, 2026.
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/2011:55 am
OPO
- ORD
1 stop28h 24m
United Airlines
Sun 6/214:05 pm
ORD
- OPO
1 stop17h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$545
This oojo deal was found by Cheapflights users on 5/15. 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.
Fri 11/204:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Mon 11/307:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$618
This Justfly.com deal was found by Cheapflights users on 5/12. 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.
Thu 11/194:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Tue 12/17:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/12![Scandinavian Airlines logo]()
$626
This Scandinavian Airlines deal was found by Cheapflights users on 5/15. 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 10/314:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Sun 11/17:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$642
This Scandinavian Airlines deal was found by Cheapflights users on 5/12. 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 11/194:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Wed 12/27:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/12![Scandinavian Airlines logo]()
$648
This Gotogate deal was found by Cheapflights users on 5/15. 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 10/1412:05 am
LIS
- ORD
1 stop22h 05m
Scandinavian Airlines
Wed 10/288:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$658
This KAYAK deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:00 pm
LIS
- ORD
1 stop26h 00m
Lufthansa
Sun 9/612:55 pm
ORD
- LIS
1 stop15h 35m
Lufthansa
Deal found 5/15![Lufthansa logo]()
$659
This Scandinavian Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 12/211:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Sun 12/67:00 am
ORD
- OPO
2 stops22h 05m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$692
This FlightHub deal was found by Cheapflights users on 5/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:05 am
LIS
- ORD
1 stop22h 05m
Scandinavian Airlines
Tue 9/87:15 pm
ORD
- LIS
1 stop22h 00m
Scandinavian Airlines
Deal found 5/15![Scandinavian Airlines logo]()
$709
This Mytrip deal was found by Cheapflights users on 5/16. 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 6/28:15 am
LIS
- ORD
2 stops34h 55m
Multiple Airlines
Sun 6/147:25 am
ORD
- LIS
2 stops17h 05m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$749
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 9/196:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Mon 10/57:25 pm
ORD
- LIS
2 stops21h 35m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$752
This Mytrip deal was found by Cheapflights users on 5/14. 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.
Sat 6/2011:55 am
OPO
- ORD
2 stops25h 47m
Air Canada
Sun 6/216:22 pm
ORD
- OPO
2 stops30h 38m
Air Canada
Deal found 5/14![Air Canada logo]()
$775
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 May 16, 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 May 16, 2026.
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/2011:55 am
OPO
- ORD
1 stop28h 24m
United Airlines
Sun 6/214:05 pm
ORD
- OPO
1 stop17h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$545
This Scandinavian Airlines deal was found by Cheapflights users on 5/14. 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 10/314:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Sun 11/17:15 pm
ORD
- LIS
1 stop14h 50m
Scandinavian Airlines
Deal found 5/14![Scandinavian Airlines logo]()
$645
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:00 am
OPO
- ORD
1 stop15h 15m
Delta
Tue 6/167:17 pm
ORD
- OPO
2 stops17h 03m
Delta
Deal found 5/14![Delta logo]()
$918
This KLM deal was found by Cheapflights users on 5/14. 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 8/288:50 am
FAO
- ORD
1 stop35h 25m
KLM
Sun 9/207:35 pm
ORD
- FAO
2 stops31h 35m
KLM
Deal found 5/14![KLM logo]()
$918
This SWISS deal was found by Cheapflights users on 5/16. 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.
Mon 8/313:50 pm
LIS
- ORD
1 stop30h 05m
SWISS
Mon 9/73:55 pm
ORD
- LIS
2 stops15h 50m
SWISS
Deal found 5/16![SWISS logo]()
$925
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/12. 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.
Wed 11/116:05 am
FAO
- ORD
1 stop15h 25m
TAP AIR PORTUGAL
Sun 11/158:10 pm
ORD
- FAO
1 stop21h 40m
TAP AIR PORTUGAL
Deal found 5/12![TAP AIR PORTUGAL logo]()
$945
This Air Canada deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:05 am
FAO
- ORD
2 stops35h 05m
Air Canada
Sun 11/152:00 pm
ORD
- FAO
2 stops19h 40m
Air Canada
Deal found 5/12![Air Canada logo]()
$1,165
This British Airways deal was found by Cheapflights users on 5/15. 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 7/27:55 pm
FAO
- ORD
1 stop26h 00m
British Airways
Mon 7/135:00 pm
ORD
- FAO
1 stop15h 45m
British Airways
Deal found 5/15![British Airways logo]()
$1,175
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/1112:10 pm
OPO
- ORD
1 stop13h 45m
United Airlines
Tue 6/238:45 am
ORD
- OPO
1 stop19h 00m
United Airlines
Deal found 5/13![United Airlines logo]()
$909
This Scandinavian Airlines deal was found by Cheapflights users on 5/11. 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.
Wed 11/1110:35 am
FAO
- ORD
2 stops36h 10m
Scandinavian Airlines
Sun 11/157:15 pm
ORD
- FAO
1 stop33h 55m
Scandinavian Airlines
Deal found 5/11![Scandinavian Airlines logo]()
$911
This Delta deal was found by Cheapflights users on 5/16. 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 6/115:00 am
LIS
- ORD
1 stop15h 15m
Delta
Fri 6/197:17 pm
ORD
- LIS
2 stops17h 28m
Delta
Deal found 5/16![Delta logo]()
$920
This KLM deal was found by Cheapflights users on 5/14. 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 8/306:55 pm
FAO
- ORD
1 stop25h 35m
KLM
Fri 9/186:00 am
ORD
- FAO
2 stops21h 30m
KLM
Deal found 5/14![KLM logo]()
$929
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/96:00 am
OPO
- ORD
1 stop14h 55m
United Airlines
Tue 6/1610:51 am
ORD
- OPO
1 stop13h 24m
United Airlines
Deal found 5/15![United Airlines logo]()
$911
This Delta deal was found by Cheapflights users on 5/14. 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 5/285:00 am
LIS
- ORD
1 stop15h 15m
Delta
Sun 5/3110:25 am
ORD
- LIS
1 stop18h 20m
Delta
Deal found 5/14![Delta logo]()
$924
This United Airlines deal was found by Cheapflights users on 5/16. 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 6/411:40 am
FAO
- ORD
2 stops17h 46m
United Airlines
Mon 6/810:00 am
ORD
- FAO
2 stops17h 10m
United Airlines
Deal found 5/16![United Airlines logo]()
$924
This Delta deal was found by Cheapflights users on 5/15. 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 10/155:35 am
LIS
- ORD
2 stops20h 49m
Delta
Wed 10/281:30 pm
ORD
- LIS
2 stops16h 50m
Delta
Deal found 5/15![Delta logo]()
$931
This KLM deal was found by Cheapflights users on 5/15. 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 7/2210:10 pm
FAO
- ORD
2 stops24h 13m
KLM
Wed 10/215:45 pm
ORD
- FAO
2 stops19h 45m
KLM
Deal found 5/15![KLM logo]()
$1,120
This United Airlines deal was found by Cheapflights users on 5/16. 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 6/115:05 am
LIS
- ORD
1 stop15h 50m
United Airlines
Fri 6/199:55 pm
ORD
- LIS
1 stop30h 40m
United Airlines
Deal found 5/16![United Airlines logo]()
$931
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/25:05 am
LIS
- ORD
2 stops23h 10m
United Airlines
Fri 6/129:55 pm
ORD
- LIS
1 stop30h 40m
United Airlines
Deal found 5/12![United Airlines logo]()
$942
Last-minute flights from Portugal to O'Hare IntlDiscover last-minute flight deals from Portugal to O'Hare Intl. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to O'Hare Intl. Data last updated May 16, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/16. 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 5/171:00 pm
LIS
- ORD
2 stops35h 58m
United Airlines
Tue 5/192:27 pm
ORD
- LIS
1 stop14h 03m
United Airlines
Deal found 5/16![United Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/2012:55 pm
LIS
- ORD
2 stops48h 50m
United Airlines
Sat 5/237:45 am
ORD
- LIS
1 stop20h 50m
United Airlines
Deal found 5/12![United Airlines logo]()
$854
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 5/2111:45 am
FAO
- ORD
1 stop13h 30m
Aer Lingus
Mon 5/259:00 pm
ORD
- FAO
1 stop16h 25m
Aer Lingus
Deal found 5/13![Aer Lingus logo]()
$858
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Thu 5/2112:50 pm
FAO
- ORD
2 stops33h 10m
Multiple Airlines
Thu 5/289:55 am
ORD
- FAO
3 stops29h 25m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 5/14. 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 5/221:00 pm
LIS
- ORD
2 stops48h 45m
United Airlines
Mon 5/256:00 am
ORD
- LIS
1 stop20h 20m
United Airlines
Deal found 5/14![United Airlines logo]()
$851
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 5/277:00 am
OPO
- ORD
2 stops22h 13m
Multiple Airlines
Tue 8/114:55 pm
ORD
- OPO
1 stop31h 55m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$848
This Mytrip deal was found by Cheapflights users on 5/13. 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 5/297:50 pm
LIS
- ORD
3 stops30h 18m
Multiple Airlines
Tue 6/29:55 am
ORD
- LIS
3 stops22h 45m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$838
This Mytrip deal was found by Cheapflights users on 5/16. 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 6/28:15 am
LIS
- ORD
2 stops34h 55m
Multiple Airlines
Sun 6/147:25 am
ORD
- LIS
2 stops17h 05m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/21:00 pm
LIS
- ORD
2 stops24h 45m
United Airlines
Wed 6/31:30 pm
ORD
- LIS
1 stop12h 50m
United Airlines
Deal found 5/13![United Airlines logo]()
$853
This Mytrip deal was found by Cheapflights users on 5/14. 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 6/511:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Sun 6/149:55 am
ORD
- LIS
1 stop17h 40m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$811
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/2011:55 am
OPO
- ORD
1 stop28h 24m
United Airlines
Sun 6/214:05 pm
ORD
- OPO
1 stop17h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$545
This Mytrip deal was found by Cheapflights users on 5/14. 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.
Sat 6/2011:55 am
OPO
- ORD
2 stops25h 47m
Air Canada
Sun 6/216:22 pm
ORD
- OPO
2 stops30h 38m
Air Canada
Deal found 5/14![Air Canada logo]()
$775
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 May 16, 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 May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 9/229:20 pm
FAO
- ORD
3 stops50h 30m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 9/227:10 am
OPO
- ORD
2 stops40h 40m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 5/13![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:40 pm
OPO
- ORD
3 stops53h 10m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 10/209:55 am
LIS
- ORD
3 stops37h 55m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 9/266:40 am
LIS
- ORD
3 stops41h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/259:40 pm
LIS
- ORD
2 stops27h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 9/305:55 am
LIS
- ORD
2 stops19h 20m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 9/109:10 am
FAO
- ORD
3 stops38h 40m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 5/13. 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
2 stops27h 15m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 9/98:30 am
LIS
- ORD
3 stops39h 20m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 10/66:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 5/14![Finnair logo]()
$431
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $545 (United Airlines) |
One-way from | $395 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $834 |
Good one-way deal | $648 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 May 16, 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
PortoChicago
OPO - ORD
OPOORD
Porto
Sat 6/20
11:55 am-10:19 am
1 stop28h 24m
Chicago O'Hare Intl
Sun 6/21
4:05 pm-3:40 pm
1 stop17h 35m
$545
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Sat 10/31
4:55 pm-5:45 pm
1 stop29h 50m
Chicago O'Hare Intl
Sun 11/1
7:15 pm-4:05 pm
1 stop14h 50m
$645
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 6/11
12:10 pm-7:55 pm
1 stop13h 45m
Chicago O'Hare Intl
Tue 6/23
8:45 am-9:45 am
1 stop19h 00m
$909
FaroChicago
FAO - ORD
FAOORD
Faro
Wed 11/11
10:35 am-4:45 pm
2 stops36h 10m
Chicago O'Hare Intl
Sun 11/15
7:15 pm-11:10 am
1 stop33h 55m
$911
Quickest round-trip
PortoChicago
OPO - ORD
OPOORD
Porto
Tue 6/9
6:00 am-2:55 pm
1 stop14h 55m
Chicago O'Hare Intl
Tue 6/16
10:51 am-6:15 am
1 stop13h 24m
$911
PortoChicago
OPO - ORD
OPOORD
Porto
Tue 6/9
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Tue 6/16
7:17 pm-6:20 pm
2 stops17h 03m
$918
FaroChicago
FAO - ORD
FAOORD
Faro
Fri 8/28
8:50 am-2:15 pm
1 stop35h 25m
Chicago O'Hare Intl
Sun 9/20
7:35 pm-9:10 am
2 stops31h 35m
$918
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Thu 6/11
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Fri 6/19
7:17 pm-6:45 pm
2 stops17h 28m
$920
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
Thu 5/28
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Sun 5/31
10:25 am-10:45 am
1 stop18h 20m
$924
FaroChicago
FAO - ORD
FAOORD
Faro
Thu 6/4
11:40 am-11:26 pm
2 stops17h 46m
Chicago O'Hare Intl
Mon 6/8
10:00 am-9:10 am
2 stops17h 10m
$924
Showing 1-10 of 43 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.
OPO-ORD
LIS-ORD
FAO-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
OPO-ORD
LIS-ORD
FAO-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 $473). Flying from Portugal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $880). 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 May 16, 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 24% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 127 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 24% 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 May 16, 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.
Food
6.2
Overall
7.2
Comfort
7.1
Entertainment
6.3
Crew
7.8
Boarding
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Dec 2025
LIS - EWR
Food
6.2
Overall
7.2
Comfort
7.1
Entertainment
6.3
Crew
7.8
Boarding
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Dec 2025
LIS - EWR
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 locationsRosemont
Schaumburg
Naperville
Benton Harbor
Delavan
Oakbrook Terrace
Lake Geneva
Gurnee
Downers Grove
Des Plaines
Hoffman Estates
Oak Brook
South Holland
Libertyville
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Arlington Heights
Northbrook
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Other flights to O'Hare Intl
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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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$665 | Average$1,209 | FlexibilityNo cancel fee | On-timeN/A |