$375+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
mai 30 — juin 61
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 avril 30, 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 avril 30, 2026.
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/157:20 am
LIS
- ORD
1 stop16h 55m
British Airways
dim. 5/177:05 pm
ORD
- LIS
1 stop16h 40m
British Airways
Deal found 4/25![British Airways logo]()
$535
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/127:10 am
LIS
- ORD
1 stop17h 05m
British Airways
dim. 5/177:05 pm
ORD
- LIS
1 stop16h 40m
British Airways
Deal found 4/25![British Airways logo]()
$536
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/147:20 am
LIS
- ORD
1 stop14h 35m
British Airways
lun. 5/187:05 pm
ORD
- LIS
1 stop16h 50m
British Airways
Deal found 4/25![British Airways logo]()
$547
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/127:10 am
LIS
- ORD
1 stop14h 45m
British Airways
ven. 5/157:05 pm
ORD
- LIS
1 stop16h 55m
British Airways
Deal found 4/25![British Airways logo]()
$552
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/137:20 am
LIS
- ORD
1 stop14h 35m
British Airways
sam. 5/169:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 4/25![British Airways logo]()
$562
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 4/297:20 am
LIS
- ORD
1 stop16h 55m
British Airways
sam. 5/99:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 4/26![British Airways logo]()
$573
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/167:10 am
LIS
- ORD
1 stop14h 45m
British Airways
dim. 5/179:15 pm
ORD
- LIS
1 stop14h 30m
British Airways
Deal found 4/25![British Airways logo]()
$579
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
dim. 5/37:20 am
LIS
- ORD
1 stop16h 55m
British Airways
mer. 5/135:00 pm
ORD
- LIS
1 stop15h 10m
British Airways
Deal found 4/26![British Airways logo]()
$584
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mar. 4/287:10 am
LIS
- ORD
1 stop14h 45m
British Airways
jeu. 5/149:15 pm
ORD
- LIS
1 stop14h 55m
British Airways
Deal found 4/26![British Airways logo]()
$585
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
jeu. 4/307:20 am
LIS
- ORD
1 stop16h 55m
British Airways
mer. 5/135:00 pm
ORD
- LIS
1 stop15h 10m
British Airways
Deal found 4/26![British Airways logo]()
$588
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 4/297:20 am
LIS
- ORD
1 stop16h 55m
British Airways
ven. 5/87:05 pm
ORD
- LIS
1 stop14h 30m
British Airways
Deal found 4/26![British Airways logo]()
$590
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mar. 4/287:10 am
LIS
- ORD
1 stop17h 05m
British Airways
mer. 5/135:00 pm
ORD
- LIS
1 stop15h 10m
British Airways
Deal found 4/26![British Airways logo]()
$591
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 avril 30, 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 avril 30, 2026.
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/2112:10 pm
OPO
- ORD
1 stop13h 45m
United Airlines
ven. 6/57:10 am
ORD
- OPO
1 stop17h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$910
This Delta deal was found by Cheapflights users on 4/29. 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.
jeu. 5/215:00 am
OPO
- ORD
1 stop15h 15m
Delta
ven. 6/55:19 pm
ORD
- OPO
2 stops16h 06m
Delta
Deal found 4/29![Delta logo]()
$912
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/136:05 am
FAO
- ORD
3 stops37h 05m
Multiple Airlines
sam. 6/202:15 pm
ORD
- FAO
2 stops27h 05m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$923
This KLM deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
lun. 6/159:45 pm
FAO
- ORD
2 stops24h 41m
KLM
sam. 9/124:20 pm
ORD
- FAO
1 stop19h 45m
KLM
Deal found 4/26![KLM logo]()
$928
This British Airways deal was found by Cheapflights users on 4/27. 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.
lun. 5/257:10 am
LIS
- ORD
1 stop14h 45m
British Airways
ven. 6/127:05 pm
ORD
- LIS
1 stop22h 05m
British Airways
Deal found 4/27![British Airways logo]()
$1,005
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 6/106:00 am
OPO
- ORD
2 stops20h 05m
United Airlines
mer. 6/178:40 am
ORD
- OPO
2 stops16h 15m
United Airlines
Deal found 4/26![United Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/115:00 am
OPO
- ORD
2 stops21h 14m
Delta
mer. 5/273:47 pm
ORD
- OPO
2 stops17h 38m
Delta
Deal found 4/25![Delta logo]()
$917
This Mytrip deal was found by Cheapflights users on 4/27. 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.
jeu. 6/1112:50 pm
FAO
- ORD
2 stops29h 45m
Multiple Airlines
jeu. 6/1811:05 am
ORD
- FAO
3 stops30h 45m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$938
This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/139:05 pm
FAO
- ORD
1 stop23h 10m
KLM
sam. 6/2011:15 am
ORD
- FAO
2 stops25h 55m
KLM
Deal found 4/29![KLM logo]()
$962
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mer. 5/275:05 am
LIS
- ORD
1 stop20h 50m
United Airlines
dim. 5/316:00 am
ORD
- LIS
1 stop20h 20m
United Airlines
Deal found 4/29![United Airlines logo]()
$914
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
jeu. 5/215:00 am
LIS
- ORD
1 stop15h 15m
Delta
jeu. 6/42:00 pm
ORD
- LIS
2 stops18h 55m
Delta
Deal found 4/26![Delta logo]()
$921
This Mytrip deal was found by Cheapflights users on 4/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/96:10 am
FAO
- ORD
2 stops19h 55m
Multiple Airlines
mar. 6/169:55 am
ORD
- FAO
3 stops20h 30m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$945
This KLM deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
sam. 6/209:05 pm
FAO
- ORD
1 stop23h 10m
KLM
ven. 9/114:20 pm
ORD
- FAO
1 stop34h 10m
KLM
Deal found 4/26![KLM logo]()
$977
This United Airlines deal was found by Cheapflights users on 4/27. 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.
jeu. 5/147:25 am
LIS
- ORD
1 stop13h 25m
United Airlines
dim. 5/316:00 am
ORD
- LIS
1 stop20h 20m
United Airlines
Deal found 4/27![United Airlines logo]()
$915
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/115:00 am
OPO
- ORD
2 stops17h 29m
Delta
mar. 5/267:00 pm
ORD
- OPO
2 stops17h 20m
Delta
Deal found 4/25![Delta logo]()
$922
This Delta deal was found by Cheapflights users on 4/29. 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.
lun. 5/115:00 am
LIS
- ORD
1 stop15h 30m
Delta
mer. 5/272:00 pm
ORD
- LIS
2 stops18h 35m
Delta
Deal found 4/29![Delta logo]()
$926
This United Airlines deal was found by Cheapflights users on 4/27. 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.
mar. 5/126:45 am
LIS
- ORD
1 stop14h 05m
United Airlines
sam. 5/303:53 pm
ORD
- LIS
1 stop12h 42m
United Airlines
Deal found 4/27![United Airlines logo]()
$933
This Delta deal was found by Cheapflights users on 4/28. 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.
jeu. 10/15:00 am
LIS
- ORD
2 stops19h 41m
Delta
mer. 10/1410:30 am
ORD
- LIS
2 stops16h 20m
Delta
Deal found 4/28![Delta logo]()
$927
This United Airlines deal was found by Cheapflights users on 4/27. 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.
ven. 5/227:25 am
LIS
- ORD
1 stop13h 30m
United Airlines
mar. 6/94:00 pm
ORD
- LIS
1 stop12h 30m
United Airlines
Deal found 4/27![United Airlines logo]()
$933
This United Airlines deal was found by Cheapflights users on 4/27. 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.
ven. 5/297:25 am
LIS
- ORD
1 stop13h 30m
United Airlines
lun. 6/158:40 am
ORD
- LIS
1 stop19h 50m
United Airlines
Deal found 4/27![United Airlines logo]()
$933
This Delta deal was found by Cheapflights users on 4/29. 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.
mer. 5/275:00 am
LIS
- ORD
1 stop15h 30m
Delta
dim. 5/317:00 pm
ORD
- LIS
2 stops17h 45m
Delta
Deal found 4/29![Delta logo]()
$986
This United Airlines deal was found by Cheapflights users on 4/27. 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.
dim. 5/316:15 am
LIS
- ORD
1 stop18h 00m
United Airlines
dim. 6/77:10 am
ORD
- LIS
1 stop19h 10m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,100
Last-minute flights from Portugal to O'Hare IntlDiscover last-minute flight deals from Portugal to O'Hare Intl. Data last updated avril 30, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to O'Hare Intl. Data last updated avril 30, 2026 and is based on user searches.
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 4/297:20 am
LIS
- ORD
1 stop16h 55m
British Airways
sam. 5/99:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 4/26![British Airways logo]()
$573
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 4/297:20 am
LIS
- ORD
1 stop16h 55m
British Airways
ven. 5/87:05 pm
ORD
- LIS
1 stop14h 30m
British Airways
Deal found 4/26![British Airways logo]()
$590
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
jeu. 4/307:20 am
LIS
- ORD
1 stop16h 55m
British Airways
mer. 5/135:00 pm
ORD
- LIS
1 stop15h 10m
British Airways
Deal found 4/26![British Airways logo]()
$588
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
jeu. 4/307:20 am
LIS
- ORD
1 stop16h 55m
British Airways
sam. 5/99:15 pm
ORD
- LIS
1 stop13h 05m
British Airways
Deal found 4/26![British Airways logo]()
$591
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
sam. 5/27:10 am
LIS
- ORD
1 stop17h 05m
British Airways
sam. 5/99:15 pm
ORD
- LIS
1 stop13h 05m
British Airways
Deal found 4/26![British Airways logo]()
$592
This deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
dim. 5/37:20 am
LIS
- ORD
1 stop16h 55m
British Airways
mer. 5/135:00 pm
ORD
- LIS
1 stop15h 10m
British Airways
Deal found 4/26![British Airways logo]()
$584
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/127:10 am
LIS
- ORD
1 stop17h 05m
British Airways
dim. 5/177:05 pm
ORD
- LIS
1 stop16h 40m
British Airways
Deal found 4/25![British Airways logo]()
$536
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/127:10 am
LIS
- ORD
1 stop14h 45m
British Airways
ven. 5/157:05 pm
ORD
- LIS
1 stop16h 55m
British Airways
Deal found 4/25![British Airways logo]()
$552
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/137:20 am
LIS
- ORD
1 stop14h 35m
British Airways
sam. 5/169:15 pm
ORD
- LIS
1 stop14h 50m
British Airways
Deal found 4/25![British Airways logo]()
$562
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/147:20 am
LIS
- ORD
1 stop14h 35m
British Airways
lun. 5/187:05 pm
ORD
- LIS
1 stop16h 50m
British Airways
Deal found 4/25![British Airways logo]()
$547
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/157:20 am
LIS
- ORD
1 stop16h 55m
British Airways
dim. 5/177:05 pm
ORD
- LIS
1 stop16h 40m
British Airways
Deal found 4/25![British Airways logo]()
$535
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/167:10 am
LIS
- ORD
1 stop14h 45m
British Airways
dim. 5/179:15 pm
ORD
- LIS
1 stop14h 30m
British Airways
Deal found 4/25![British Airways logo]()
$579
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 avril 30, 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 avril 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
lun. 5/1810:40 pm
OPO
- ORD
3 stops54h 33m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/137:15 am
OPO
- ORD
2 stops39h 39m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/1411:20 am
OPO
- ORD
2 stops26h 41m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
mer. 5/279:40 pm
OPO
- ORD
3 stops56h 16m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
mar. 5/198:25 pm
LIS
- ORD
3 stops50h 15m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
mar. 6/96:15 am
OPO
- ORD
2 stops39h 45m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/145:55 am
LIS
- ORD
2 stops19h 20m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
jeu. 5/218:55 pm
LIS
- ORD
3 stops33h 01m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/306:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 4/25![Finnair logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 9/166:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 4/26![Finnair logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/158:40 pm
OPO
- ORD
2 stops25h 25m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
mer. 9/165:55 am
LIS
- ORD
2 stops19h 20m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$432
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 avril 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $535 |
One-way from | $375 (Kiwi.com) |
Popular in | January |
Cheapest in | February |
Average price | $839 |
Good one-way deal | $670 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 avril 30, 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
jeu. 5/21
12:10 pm-7:55 pm
1 stop13h 45m
Chicago O'Hare Intl
ven. 6/5
7:10 am-6:55 am
1 stop17h 45m
$910
PortoChicago
OPO - ORD
OPOORD
Porto
jeu. 5/21
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
ven. 6/5
5:19 pm-3:25 pm
2 stops16h 06m
$912
PortoChicago
OPO - ORD
OPOORD
Porto
mer. 6/10
6:00 am-8:05 pm
2 stops20h 05m
Chicago O'Hare Intl
mer. 6/17
8:40 am-6:55 am
2 stops16h 15m
$913
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
mer. 5/27
5:05 am-7:55 pm
1 stop20h 50m
Chicago O'Hare Intl
dim. 5/31
6:00 am-8:20 am
1 stop20h 20m
$914
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
jeu. 5/14
7:25 am-2:50 pm
1 stop13h 25m
Chicago O'Hare Intl
dim. 5/31
6:00 am-8:20 am
1 stop20h 20m
$915
PortoChicago
OPO - ORD
OPOORD
Porto
lun. 5/11
5:00 am-8:14 pm
2 stops21h 14m
Chicago O'Hare Intl
mer. 5/27
3:47 pm-3:25 pm
2 stops17h 38m
$917
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
jeu. 5/21
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
jeu. 6/4
2:00 pm-2:55 pm
2 stops18h 55m
$921
PortoChicago
OPO - ORD
OPOORD
Porto
lun. 5/11
5:00 am-4:29 pm
2 stops17h 29m
Chicago O'Hare Intl
mar. 5/26
7:00 pm-6:20 pm
2 stops17h 20m
$922
FaroChicago
FAO - ORD
FAOORD
Faro
sam. 6/13
6:05 am-1:10 pm
3 stops37h 05m
Chicago O'Hare Intl
sam. 6/20
2:15 pm-11:20 pm
2 stops27h 05m
$923
LisbonChicago
LIS - ORD
LISORD
Lisbon Humberto Delgado
lun. 5/11
5:00 am-2:30 pm
1 stop15h 30m
Chicago O'Hare Intl
mer. 5/27
2:00 pm-2:35 pm
2 stops18h 35m
$926
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.
FAO-ORD
LIS-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
FAO-ORD
LIS-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 $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 avril 30, 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 26% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 128 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 26% 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 avril 30, 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
6.3
Overall
7.2
Crew
7.8
Comfort
7.1
Boarding
7.0
Food
6.2
Reviews
1 / 20
8.0
ExcellentAnonymous,Dec 2025
LIS - EWR
Entertainment
6.3
Overall
7.2
Crew
7.8
Comfort
7.1
Boarding
7.0
Food
6.2
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
Lake Geneva
Gurnee
Delavan
Downers Grove
Oakbrook Terrace
Benton Harbor
Hoffman Estates
Des Plaines
Oak Brook
South Holland
Libertyville
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing
Arlington Heights
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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 avril 30, 2026.
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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 avril 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$665 | Average$1,209 | FlexibilityNo cancel fee | On-timeN/A |