$329+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
Apr 2 — Apr 91
1 adult, Economy
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Find cheap flights from Portugal to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portugal to O'Hare Intl
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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 March 3, 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 March 3, 2026.
This Rumbo deal was found by Cheapflights users on 2/28. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:55 am
OPO
- ORD
1 stop11h 50m
TAP AIR PORTUGAL
Sun 3/89:25 pm
ORD
- OPO
1 stop10h 35m
TAP AIR PORTUGAL
Deal found 2/28![TAP AIR PORTUGAL logo]()
$514
This Rumbo deal was found by Cheapflights users on 2/26. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:10 am
LIS
- ORD
Nonstop9h 35m
TAP AIR PORTUGAL
Sun 3/159:25 pm
ORD
- LIS
Nonstop7h 55m
TAP AIR PORTUGAL
Deal found 2/26![TAP AIR PORTUGAL logo]()
$515
This oojo deal was found by Cheapflights users on 2/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:40 pm
LIS
- ORD
Nonstop9h 20m
TAP AIR PORTUGAL
Sun 4/266:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Deal found 2/27![TAP AIR PORTUGAL logo]()
$517
This Air France deal was found by Cheapflights users on 2/26. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:00 am
OPO
- ORD
1 stop15h 15m
Multiple Airlines
Sun 4/195:10 pm
ORD
- OPO
1 stop16h 15m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$526
This Air France deal was found by Cheapflights users on 2/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:00 am
OPO
- ORD
1 stop15h 15m
Multiple Airlines
Sat 4/185:10 pm
ORD
- OPO
1 stop16h 20m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 2/26. 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.
Fri 4/35:00 am
OPO
- ORD
2 stops19h 31m
Delta
Sun 4/195:10 pm
ORD
- OPO
1 stop16h 15m
Delta
Deal found 2/26![Delta logo]()
$532
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/27:45 pm
LIS
- ORD
1 stop24h 30m
Multiple Airlines
Sun 4/125:10 pm
ORD
- LIS
1 stop12h 05m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$535
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
Tue 9/227:45 pm
LIS
- ORD
1 stop24h 45m
Multiple Airlines
Sun 12/65:20 pm
ORD
- LIS
1 stop15h 50m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$536
This deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
Mon 5/257:10 am
LIS
- ORD
1 stop17h 05m
British Airways
Fri 7/37:05 pm
ORD
- LIS
1 stop16h 55m
British Airways
Deal found 3/2![British Airways logo]()
$538
This KLM deal was found by Cheapflights users on 2/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:00 am
LIS
- ORD
1 stop15h 15m
KLM
Sun 4/264:20 pm
ORD
- LIS
1 stop12h 35m
KLM
Deal found 2/27![KLM logo]()
$540
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 4/25:35 am
LIS
- ORD
2 stops18h 56m
Delta
Sun 4/125:10 pm
ORD
- LIS
1 stop12h 05m
Delta
Deal found 3/1![Delta logo]()
$547
This deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:20 am
LIS
- ORD
1 stop16h 55m
British Airways
Thu 7/29:15 pm
ORD
- LIS
1 stop14h 55m
British Airways
Deal found 3/2![British Airways logo]()
$548
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 March 3, 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 March 3, 2026.
This Delta deal was found by Cheapflights users on 2/26. 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.
Fri 4/35:00 am
OPO
- ORD
2 stops19h 31m
Delta
Sun 4/195:10 pm
ORD
- OPO
1 stop16h 15m
Delta
Deal found 2/26![Delta logo]()
$532
This KLM deal was found by Cheapflights users on 2/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:00 am
OPO
- ORD
1 stop15h 20m
KLM
Sat 4/115:10 pm
ORD
- OPO
1 stop22h 50m
KLM
Deal found 2/28![KLM logo]()
$559
This British Airways deal was found by Cheapflights users on 2/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:50 pm
FAO
- ORD
1 stop27h 00m
British Airways
Sun 4/199:15 pm
ORD
- FAO
1 stop31h 05m
British Airways
Deal found 2/28![British Airways logo]()
$678
This Mytrip deal was found by Cheapflights users on 2/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:35 pm
FAO
- ORD
3 stops28h 56m
Multiple Airlines
Mon 4/207:25 pm
ORD
- FAO
2 stops14h 30m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$696
This American Airlines deal was found by Cheapflights users on 2/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/158:20 am
OPO
- ORD
2 stops17h 34m
American Airlines
Tue 9/19:29 am
ORD
- OPO
2 stops16h 11m
American Airlines
Deal found 2/28![American Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 5/227:25 am
LIS
- ORD
1 stop18h 30m
United Airlines
Sun 5/316:00 pm
ORD
- LIS
1 stop22h 45m
United Airlines
Deal found 3/2![United Airlines logo]()
$820
This Scandinavian Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 6/610:25 am
FAO
- ORD
2 stops35h 45m
Scandinavian Airlines
Fri 6/127:30 am
ORD
- FAO
2 stops28h 25m
Scandinavian Airlines
Deal found 3/1![Scandinavian Airlines logo]()
$856
This JetBlue deal was found by Cheapflights users on 2/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:40 pm
LIS
- ORD
Nonstop9h 20m
JetBlue
Sat 5/96:15 pm
ORD
- LIS
Nonstop8h 10m
JetBlue
Deal found 2/27![JetBlue logo]()
$1,218
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 3/1511:25 am
OPO
- ORD
1 stop33h 45m
KLM
Sun 4/264:20 pm
ORD
- OPO
1 stop19h 50m
KLM
Deal found 3/1![KLM logo]()
$620
This Delta deal was found by Cheapflights users on 2/28. 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.
Thu 4/25:00 am
OPO
- ORD
1 stop15h 15m
Delta
Sat 4/185:10 pm
ORD
- OPO
1 stop16h 20m
Delta
Deal found 2/28![Delta logo]()
$686
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:20 am
OPO
- ORD
2 stops17h 20m
American Airlines
Wed 7/293:05 pm
ORD
- OPO
2 stops14h 40m
American Airlines
Deal found 2/26![American Airlines logo]()
$713
This Mytrip deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 4/31:30 pm
OPO
- ORD
3 stops25h 40m
Multiple Airlines
Sun 4/197:25 pm
ORD
- OPO
2 stops19h 15m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$726
This KLM deal was found by Cheapflights users on 2/26. 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.
Mon 4/139:45 pm
FAO
- ORD
1 stop22h 30m
KLM
Mon 4/204:50 pm
ORD
- FAO
1 stop20h 35m
KLM
Deal found 2/26![KLM logo]()
$667
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 6/156:10 am
OPO
- ORD
2 stops38h 15m
Multiple Airlines
Tue 9/13:45 pm
ORD
- OPO
1 stop25h 25m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$747
This British Airways deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 6/47:55 pm
FAO
- ORD
1 stop26h 00m
British Airways
Wed 6/104:29 pm
ORD
- FAO
2 stops20h 36m
British Airways
Deal found 3/1![British Airways logo]()
$838
This Delta deal was found by Cheapflights users on 2/27. 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 6/45:55 am
OPO
- ORD
1 stop15h 15m
Delta
Thu 6/1110:10 am
ORD
- OPO
2 stops18h 40m
Delta
Deal found 2/27![Delta logo]()
$779
This United Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 4/163:25 pm
FAO
- ORD
2 stops26h 35m
United Airlines
Sun 4/194:05 pm
ORD
- FAO
1 stop16h 25m
United Airlines
Deal found 3/2![United Airlines logo]()
$911
This British Airways deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:00 pm
FAO
- ORD
2 stops25h 54m
British Airways
Sat 6/133:09 pm
ORD
- FAO
2 stops19h 46m
British Airways
Deal found 3/1![British Airways logo]()
$844
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
Tue 5/197:45 pm
LIS
- ORD
1 stop24h 45m
KLM
Wed 6/34:50 pm
ORD
- LIS
1 stop19h 55m
KLM
Deal found 3/1![KLM logo]()
$788
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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 3/195:30 am
LIS
- ORD
2 stops19h 47m
Delta
Sat 4/42:05 pm
ORD
- LIS
2 stops18h 50m
Delta
Deal found 3/3![Delta logo]()
$792
This Delta deal was found by Cheapflights users on 2/27. 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.
Sun 5/35:35 am
LIS
- ORD
2 stops18h 06m
Delta
Sat 5/94:20 pm
ORD
- LIS
1 stop12h 35m
Delta
Deal found 2/27![Delta logo]()
$811
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 4/165:00 am
LIS
- ORD
2 stops19h 52m
Delta
Thu 4/234:20 pm
ORD
- LIS
1 stop16h 15m
Delta
Deal found 3/1![Delta logo]()
$815
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:30 am
FAO
- ORD
2 stops20h 05m
KLM
Sun 6/145:45 pm
ORD
- FAO
2 stops33h 25m
KLM
Deal found 3/1![KLM logo]()
$906
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 3/135:30 am
LIS
- ORD
2 stops19h 47m
Delta
Sun 3/2910:40 am
ORD
- LIS
2 stops16h 10m
Delta
Deal found 3/2![Delta logo]()
$833
This Delta deal was found by Cheapflights users on 2/27. 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 3/265:00 am
LIS
- ORD
2 stops18h 49m
Delta
Thu 4/27:14 pm
ORD
- LIS
2 stops17h 31m
Delta
Deal found 2/27![Delta logo]()
$890
This Scandinavian Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:55 pm
LIS
- ORD
2 stops28h 15m
Multiple Airlines
Sun 8/167:15 pm
ORD
- LIS
2 stops18h 20m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$1,325
This Delta deal was found by Cheapflights users on 2/28. 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.
Thu 6/257:40 am
LIS
- ORD
2 stops20h 26m
Delta
Sat 7/45:45 pm
ORD
- LIS
2 stops15h 10m
Delta
Deal found 2/28![Delta logo]()
$1,049
Last-minute flights from Portugal to O'Hare IntlDiscover last-minute flight deals from Portugal to O'Hare Intl. Data last updated March 3, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to O'Hare Intl. Data last updated March 3, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
Fri 3/69:00 am
OPO
- ORD
1 stop12h 25m
TAP AIR PORTUGAL
Sun 3/229:25 pm
ORD
- OPO
1 stop31h 35m
TAP AIR PORTUGAL
Deal found 3/2![TAP AIR PORTUGAL logo]()
$596
This KLM deal was found by Cheapflights users on 2/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:00 am
OPO
- ORD
1 stop15h 20m
KLM
Sat 4/115:10 pm
ORD
- OPO
1 stop22h 50m
KLM
Deal found 2/28![KLM logo]()
$559
This Air France deal was found by Cheapflights users on 2/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:00 am
OPO
- ORD
1 stop15h 15m
Multiple Airlines
Sat 4/185:10 pm
ORD
- OPO
1 stop16h 20m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$527
This KLM deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/27:45 pm
LIS
- ORD
1 stop24h 30m
Multiple Airlines
Sun 4/125:10 pm
ORD
- LIS
1 stop12h 05m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 4/25:35 am
LIS
- ORD
2 stops18h 56m
Delta
Sun 4/125:10 pm
ORD
- LIS
1 stop12h 05m
Delta
Deal found 3/1![Delta logo]()
$547
This Air France deal was found by Cheapflights users on 2/26. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:00 am
OPO
- ORD
1 stop15h 15m
Multiple Airlines
Sun 4/195:10 pm
ORD
- OPO
1 stop16h 15m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$526
This Delta deal was found by Cheapflights users on 2/26. 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.
Fri 4/35:00 am
OPO
- ORD
2 stops19h 31m
Delta
Sun 4/195:10 pm
ORD
- OPO
1 stop16h 15m
Delta
Deal found 2/26![Delta logo]()
$532
This KLM deal was found by Cheapflights users on 2/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:45 pm
LIS
- ORD
1 stop24h 45m
Multiple Airlines
Tue 4/215:10 pm
ORD
- LIS
1 stop18h 40m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$604
This oojo deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 4/179:00 am
OPO
- ORD
1 stop13h 00m
TAP AIR PORTUGAL
Fri 4/246:00 pm
ORD
- OPO
1 stop22h 55m
TAP AIR PORTUGAL
Deal found 3/2![TAP AIR PORTUGAL logo]()
$573
This oojo deal was found by Cheapflights users on 2/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:40 pm
LIS
- ORD
Nonstop9h 20m
TAP AIR PORTUGAL
Sun 4/266:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Deal found 2/27![TAP AIR PORTUGAL logo]()
$517
This KLM deal was found by Cheapflights users on 2/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:00 am
LIS
- ORD
1 stop15h 15m
KLM
Sun 4/264:20 pm
ORD
- LIS
1 stop12h 35m
KLM
Deal found 2/27![KLM logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/296:35 am
LIS
- ORD
1 stop13h 50m
Multiple Airlines
Fri 5/110:25 pm
ORD
- LIS
2 stops43h 05m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$588
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 March 3, 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 March 3, 2026.
This Mytrip deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
Wed 4/299:10 pm
LIS
- ORD
2 stops26h 40m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 5/72:10 pm
OPO
- ORD
2 stops56h 04m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 6/226:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 3/1![Finnair logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/161:40 pm
FAO
- ORD
3 stops56h 34m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 5/96:30 am
LIS
- ORD
3 stops41h 20m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/219:40 pm
LIS
- ORD
3 stops50h 10m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 2/26. 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.
Tue 6/27:10 am
OPO
- ORD
2 stops40h 40m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 3/242:00 pm
OPO
- ORD
3 stops39h 22m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 5/96:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 3/2![Finnair logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Tue 5/56:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 2/27![Finnair logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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 5/1810:45 pm
LIS
- ORD
3 stops49h 05m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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 4/296:35 am
LIS
- ORD
1 stop13h 50m
Finnair
Deal found 3/1![Finnair logo]()
$373
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 March 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $517 (oojo) |
One-way from | $329 (Mytrip) |
Popular in | January |
Cheapest in | February |
Average price | $710 |
Good one-way deal | $549 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 March 3, 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
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 4/3
5:00 am-6:31 pm
2 stops19h 31m
Chicago O'Hare Intl
Sun 4/19
5:10 pm-3:25 pm
1 stop16h 15m
$532
PortoChicago
OPO - ORD
OPOORD
Porto
Wed 3/25
5:00 am-3:20 pm
1 stop15h 20m
Chicago O'Hare Intl
Sat 4/11
5:10 pm-10:00 pm
1 stop22h 50m
$559
PortoChicago
OPO - ORD
OPOORD
Porto
Sun 3/15
11:25 am-4:10 pm
1 stop33h 45m
Chicago O'Hare Intl
Sun 4/26
4:20 pm-6:10 pm
1 stop19h 50m
$620
FaroChicago
FAO - ORD
FAOORD
Faro
Mon 4/13
9:45 pm-2:15 pm
1 stop22h 30m
Chicago O'Hare Intl
Mon 4/20
4:50 pm-7:25 pm
1 stop20h 35m
$667
FaroChicago
FAO - ORD
FAOORD
Faro
Thu 4/16
4:50 pm-1:50 pm
1 stop27h 00m
Chicago O'Hare Intl
Sun 4/19
9:15 pm-10:20 am
1 stop31h 05m
$678
PortoChicago
OPO - ORD
OPOORD
Porto
Thu 4/2
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Sat 4/18
5:10 pm-3:30 pm
1 stop16h 20m
$686
FaroChicago
FAO - ORD
FAOORD
Faro
Mon 4/13
7:35 pm-6:31 pm
3 stops28h 56m
Chicago O'Hare Intl
Mon 4/20
7:25 pm-3:55 pm
2 stops14h 30m
$696
PortoChicago
OPO - ORD
OPOORD
Porto
Mon 6/15
8:20 am-7:54 pm
2 stops17h 34m
Chicago O'Hare Intl
Tue 9/1
9:29 am-7:40 am
2 stops16h 11m
$710
PortoChicago
OPO - ORD
OPOORD
Porto
Wed 7/8
8:20 am-7:40 pm
2 stops17h 20m
Chicago O'Hare Intl
Wed 7/29
3:05 pm-11:45 am
2 stops14h 40m
$713
PortoChicago
OPO - ORD
OPOORD
Porto
Fri 4/3
1:30 pm-9:10 am
3 stops25h 40m
Chicago O'Hare Intl
Sun 4/19
7:25 pm-8:40 pm
2 stops19h 15m
$726
Showing 1-10 of 55 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
OPO-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
LIS-ORD
OPO-ORD
FAO-ORD
What is the cheapest month to book a flight from Portugal to Chicago O'Hare Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Portugal to Chicago O'Hare Intl Airport (average of $517). Flying from Portugal to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $889). 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 March 3, 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 129 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 March 3, 2026.
Get a feel of what it's like to fly with KLM, United Airlines, and Aer Lingus 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
7.1
Comfort
7.6
Boarding
7.8
Crew
8.4
Food
7.3
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Comfort
7.6
Boarding
7.8
Crew
8.4
Food
7.3
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Comfort
7.6
Boarding
7.8
Crew
8.4
Food
7.3
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Comfort
7.6
Boarding
7.8
Crew
8.4
Food
7.3
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Comfort
7.6
Boarding
7.8
Crew
8.4
Food
7.3
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
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 locationsSchaumburg
Rosemont
Naperville
Gurnee
Hoffman Estates
Beloit
Delavan
Des Plaines
Elgin
Downers Grove
Lake Geneva
Elk Grove Village
Skokie
Oak Brook
South Holland
Libertyville
Oakbrook Terrace
Waukegan
Warrenville
Bridgeview
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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 March 3, 2026.
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Consider these flights traveling from Portugal to O'Hare Intl.
Top 4 airlines flying from Portugal to O'Hare Intl
Discover the top 4 airlines 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 March 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$653 | Average$740 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$665 | Average$1,205 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$671 | Average$775 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$760 | Average$872 | FlexibilityNo cancel fee | On-time69% |