$293+ Cheap flights from Chicago (CHI) to Portugal
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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
Apr 23 — Apr 301
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Portugal with Cheapflights
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Cheapest flights from Chicago to PortugalExplore the most affordable flight options available from Chicago to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
Explore the most affordable flight options available from Chicago to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
This oojo deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Fri 11/134:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/23![Scandinavian Airlines logo]()
$526
This FlightHub deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Sun 11/224:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/22![Scandinavian Airlines logo]()
$531
This Justfly.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Mon 11/164:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/20![Scandinavian Airlines logo]()
$547
This KAYAK deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Sun 11/224:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/20![Scandinavian Airlines logo]()
$554
This Flightnetwork deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:05 pm
ORD
- FAO
1 stop17h 10m
SWISS
Wed 4/227:05 pm
FAO
- ORD
1 stop26h 50m
SWISS
Deal found 3/23![SWISS logo]()
$554
This Flightnetwork deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:13 am
ORD
- FAO
2 stops29h 02m
Multiple Airlines
Wed 4/227:05 pm
FAO
- ORD
1 stop23h 30m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$561
This KAYAK deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Mon 11/94:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/23![Scandinavian Airlines logo]()
$570
This oojo deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Wed 12/24:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/23![Scandinavian Airlines logo]()
$572
This oojo deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:15 pm
ORD
- OPO
1 stop10h 45m
TAP AIR PORTUGAL
Wed 12/96:55 am
OPO
- ORD
1 stop14h 05m
TAP AIR PORTUGAL
Deal found 3/23![TAP AIR PORTUGAL logo]()
$572
This FlightHub deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:20 pm
ORD
- LIS
1 stop14h 45m
Scandinavian Airlines
Wed 12/94:55 pm
LIS
- ORD
1 stop29h 50m
Scandinavian Airlines
Deal found 3/21![Scandinavian Airlines logo]()
$577
This oojo deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 pm
ORD
- FAO
1 stop10h 25m
TAP AIR PORTUGAL
Thu 4/236:10 pm
FAO
- ORD
1 stop27h 50m
TAP AIR PORTUGAL
Deal found 3/22![TAP AIR PORTUGAL logo]()
$584
This Gotogate deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Sat 4/1812:40 pm
LIS
- ORD
Nonstop9h 25m
TAP AIR PORTUGAL
Deal found 3/20![TAP AIR PORTUGAL logo]()
$586
Best flights from Chicago to PortugalDiscover carefully curated flight deals from Chicago to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
Discover carefully curated flight deals from Chicago to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
This Turkish Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:10 pm
ORD
- OPO
1 stop37h 30m
Turkish Airlines
Tue 4/144:50 pm
OPO
- ORD
1 stop22h 50m
Turkish Airlines
Deal found 3/19![Turkish Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:40 pm
ORD
- LIS
1 stop19h 05m
United Airlines
Fri 5/111:25 am
LIS
- ORD
1 stop28h 53m
United Airlines
Deal found 3/21![United Airlines logo]()
$673
This SWISS deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:05 pm
ORD
- FAO
1 stop31h 15m
SWISS
Wed 4/297:05 pm
FAO
- ORD
1 stop23h 30m
SWISS
Deal found 3/22![SWISS logo]()
$711
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:16 pm
MDW
- LIS
2 stops17h 29m
Delta
Wed 5/205:00 am
LIS
- MDW
2 stops18h 56m
Delta
Deal found 3/23![Delta logo]()
$714
This KLM deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:20 pm
ORD
- LIS
1 stop20h 25m
KLM
Mon 5/113:35 pm
LIS
- ORD
1 stop28h 40m
KLM
Deal found 3/21![KLM logo]()
$774
This oojo deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:05 pm
ORD
- PDL
1 stop19h 45m
TAP AIR PORTUGAL
Fri 4/246:30 am
PDL
- ORD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 3/19![TAP AIR PORTUGAL logo]()
$805
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:25 pm
ORD
- FAO
2 stops35h 30m
Multiple Airlines
Fri 5/158:00 pm
FAO
- ORD
1 stop24h 25m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$806
This British Airways deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:45 pm
ORD
- FNC
2 stops18h 20m
British Airways
Tue 5/57:35 pm
FNC
- ORD
1 stop24h 15m
British Airways
Deal found 3/19![British Airways logo]()
$818
This Cheapflightsfares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:05 pm
ORD
- FAO
1 stop16h 40m
Lufthansa
Thu 4/233:55 pm
FAO
- ORD
2 stops27h 00m
Lufthansa
Deal found 3/22![Lufthansa logo]()
$847
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:16 pm
MDW
- LIS
2 stops17h 29m
Delta
Mon 4/205:00 am
LIS
- MDW
2 stops18h 58m
Delta
Deal found 3/22![Delta logo]()
$724
This KLM deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:50 pm
ORD
- FAO
1 stop20h 40m
KLM
Thu 5/148:20 pm
FAO
- ORD
1 stop23h 55m
KLM
Deal found 3/22![KLM logo]()
$774
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 am
ORD
- LIS
1 stop22h 00m
United Airlines
Mon 8/2411:25 am
LIS
- ORD
1 stop28h 51m
United Airlines
Deal found 3/19![United Airlines logo]()
$797
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:04 pm
ORD
- LIS
2 stops18h 46m
Delta
Tue 4/285:35 am
LIS
- ORD
2 stops17h 07m
Delta
Deal found 3/19![Delta logo]()
$727
This Gotogate deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:05 pm
ORD
- PDL
1 stop15h 30m
TAP AIR PORTUGAL
Sat 5/166:30 am
PDL
- ORD
1 stop14h 35m
TAP AIR PORTUGAL
Deal found 3/23![TAP AIR PORTUGAL logo]()
$838
This Mytrip deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:25 am
ORD
- FAO
3 stops30h 25m
Multiple Airlines
Sat 5/212:05 pm
FAO
- ORD
2 stops27h 35m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$841
This KLM deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:38 pm
MDW
- FAO
2 stops18h 52m
KLM
Wed 5/138:10 am
FAO
- MDW
2 stops16h 23m
KLM
Deal found 3/22![KLM logo]()
$788
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:36 pm
MDW
- LIS
2 stops18h 09m
Delta
Tue 5/195:00 am
LIS
- MDW
2 stops19h 33m
Delta
Deal found 3/20![Delta logo]()
$738
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:55 pm
ORD
- OPO
2 stops19h 50m
United Airlines
Fri 4/246:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Deal found 3/20![United Airlines logo]()
$812
This British Airways deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:39 am
ORD
- OPO
2 stops17h 01m
Multiple Airlines
Wed 5/208:40 pm
OPO
- ORD
2 stops25h 13m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:35 pm
ORD
- OPO
2 stops31h 40m
United Airlines
Sun 4/266:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Deal found 3/21![United Airlines logo]()
$823
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:30 pm
ORD
- OPO
2 stops18h 55m
Delta
Wed 4/295:00 am
OPO
- ORD
1 stop15h 30m
Delta
Deal found 3/23![Delta logo]()
$749
This KLM deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:10 pm
ORD
- OPO
1 stop22h 50m
KLM
Fri 5/155:55 am
OPO
- ORD
1 stop15h 15m
KLM
Deal found 3/24![KLM logo]()
$852
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:27 pm
ORD
- PDL
2 stops36h 18m
Multiple Airlines
Fri 4/245:30 pm
PDL
- ORD
1 stop23h 12m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$858
This Air Canada deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:40 pm
ORD
- TER
2 stops26h 35m
Air Canada
Fri 8/217:10 am
TER
- ORD
3 stops21h 06m
Air Canada
Deal found 3/23![Air Canada logo]()
$2,159
This FlightHub deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:00 pm
ORD
- TER
1 stop13h 50m
TAP AIR PORTUGAL
Fri 8/217:10 am
TER
- ORD
1 stop13h 50m
TAP AIR PORTUGAL
Deal found 3/23![TAP AIR PORTUGAL logo]()
$993
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:30 pm
ORD
- OPO
2 stops18h 55m
Delta
Thu 4/305:55 am
OPO
- ORD
1 stop15h 15m
Delta
Deal found 3/23![Delta logo]()
$756
This KLM deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:34 pm
MDW
- OPO
2 stops17h 46m
KLM
Tue 4/146:15 am
OPO
- MDW
2 stops16h 14m
KLM
Deal found 3/24![KLM logo]()
$858
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:30 am
ORD
- LIS
1 stop22h 00m
United Airlines
Thu 8/131:00 pm
LIS
- ORD
1 stop31h 55m
United Airlines
Deal found 3/19![United Airlines logo]()
$865
This Scandinavian Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:15 pm
ORD
- LIS
1 stop14h 20m
Multiple Airlines
Tue 9/159:15 pm
LIS
- ORD
2 stops30h 51m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$869
This oojo deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:05 pm
ORD
- TER
1 stop13h 45m
TAP AIR PORTUGAL
Sat 8/157:05 am
TER
- ORD
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 3/19![TAP AIR PORTUGAL logo]()
$1,013
Last-minute flights from Chicago to PortugalDiscover last-minute flight deals from Chicago to Portugal. Data last updated March 24, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Portugal. Data last updated March 24, 2026 and is based on user searches.
This Turkish Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:10 pm
ORD
- OPO
1 stop37h 40m
Turkish Airlines
Tue 4/1410:40 am
OPO
- ORD
1 stop29h 00m
Turkish Airlines
Deal found 3/21![Turkish Airlines logo]()
$600
This Turkish Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:10 pm
ORD
- OPO
1 stop37h 30m
Turkish Airlines
Tue 4/144:50 pm
OPO
- ORD
1 stop22h 50m
Turkish Airlines
Deal found 3/19![Turkish Airlines logo]()
$597
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/58:10 pm
ORD
- OPO
1 stop37h 40m
Turkish Airlines
Tue 4/214:50 pm
OPO
- ORD
1 stop22h 50m
Turkish Airlines
Deal found 3/24![Turkish Airlines logo]()
$603
This Flightnetwork deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:05 pm
ORD
- FAO
1 stop17h 10m
SWISS
Wed 4/227:05 pm
FAO
- ORD
1 stop26h 50m
SWISS
Deal found 3/23![SWISS logo]()
$554
This Flightnetwork deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:13 am
ORD
- FAO
2 stops29h 02m
Multiple Airlines
Wed 4/227:05 pm
FAO
- ORD
1 stop23h 30m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$561
This oojo deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:10 pm
ORD
- OPO
1 stop37h 30m
Turkish Airlines
Thu 4/166:10 am
OPO
- ORD
1 stop33h 30m
Turkish Airlines
Deal found 3/22![Turkish Airlines logo]()
$587
This Gotogate deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Sat 4/1812:40 pm
LIS
- ORD
Nonstop9h 25m
TAP AIR PORTUGAL
Deal found 3/20![TAP AIR PORTUGAL logo]()
$586
This Super.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Wed 4/2212:40 pm
LIS
- ORD
Nonstop9h 20m
TAP AIR PORTUGAL
Deal found 3/19![TAP AIR PORTUGAL logo]()
$587
This oojo deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 pm
ORD
- FAO
1 stop10h 25m
TAP AIR PORTUGAL
Thu 4/236:10 pm
FAO
- ORD
1 stop27h 50m
TAP AIR PORTUGAL
Deal found 3/22![TAP AIR PORTUGAL logo]()
$584
This FlightHub deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:05 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Wed 5/2012:40 pm
LIS
- ORD
Nonstop9h 20m
TAP AIR PORTUGAL
Deal found 3/23![TAP AIR PORTUGAL logo]()
$601
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:25 am
ORD
- OPO
1 stop16h 15m
Turkish Airlines
Tue 4/284:50 pm
OPO
- ORD
1 stop22h 50m
Turkish Airlines
Deal found 3/23![Turkish Airlines logo]()
$605
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:10 pm
ORD
- LIS
1 stop21h 10m
Turkish Airlines
Tue 4/2810:55 am
LIS
- ORD
1 stop28h 45m
Turkish Airlines
Deal found 3/24![Turkish Airlines logo]()
$599
One-way flights from Chicago to PortugalSearch for one-way flight options from Chicago to Portugal. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
Search for one-way flight options from Chicago to Portugal. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:25 pm
ORD
- OPO
2 stops19h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:25 pm
ORD
- LIS
2 stops21h 35m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:25 pm
ORD
- OPO
2 stops19h 15m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:25 pm
ORD
- OPO
2 stops15h 00m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:25 pm
ORD
- OPO
3 stops22h 15m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:25 pm
ORD
- OPO
3 stops29h 55m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:25 pm
ORD
- LIS
3 stops39h 45m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:25 pm
ORD
- LIS
3 stops44h 10m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:47 pm
ORD
- LIS
3 stops27h 18m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:30 am
MDW
- LIS
3 stops32h 35m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:25 pm
ORD
- LIS
2 stops42h 35m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1910:25 pm
ORD
- OPO
2 stops35h 15m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$317
Find flight deals from Chicago to Portugal
Keep the following information in mind while searching for Chicago to Portugal flight deals. Data was last updated March 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $538 (Super.com) |
One-way from | $293 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $702 |
Good round-trip deal | $647 or less |
Good one-way deal | $426 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Portugal 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 24, 2026.
Use the filters below to find and compare flights from Chicago to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 3/30
8:10 pm-3:40 pm
1 stop37h 30m
Porto
Tue 4/14
4:50 pm-9:40 am
1 stop22h 50m
$597
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Wed 4/22
9:40 pm-10:45 pm
1 stop19h 05m
Lisbon Humberto Delgado
Fri 5/1
11:25 am-10:18 am
1 stop28h 53m
$673
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Sat 4/18
7:05 pm-8:20 am
1 stop31h 15m
Faro
Wed 4/29
7:05 pm-12:35 pm
1 stop23h 30m
$711
ChicagoLisbon
MDW - LIS
MDWLIS
Chicago Midway
Mon 5/4
7:16 pm-6:45 pm
2 stops17h 29m
Lisbon Humberto Delgado
Wed 5/20
5:00 am-5:56 pm
2 stops18h 56m
$714
ChicagoLisbon
MDW - LIS
MDWLIS
Chicago Midway
Mon 4/13
7:16 pm-6:45 pm
2 stops17h 29m
Lisbon Humberto Delgado
Mon 4/20
5:00 am-5:58 pm
2 stops18h 58m
$724
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 4/21
5:04 pm-5:50 pm
2 stops18h 46m
Lisbon Humberto Delgado
Tue 4/28
5:35 am-4:42 pm
2 stops17h 07m
$727
ChicagoLisbon
MDW - LIS
MDWLIS
Chicago Midway
Sat 5/9
6:36 pm-6:45 pm
2 stops18h 09m
Lisbon Humberto Delgado
Tue 5/19
5:00 am-6:33 pm
2 stops19h 33m
$738
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 4/20
2:30 pm-3:25 pm
2 stops18h 55m
Porto
Wed 4/29
5:00 am-2:30 pm
1 stop15h 30m
$749
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 4/20
2:30 pm-3:25 pm
2 stops18h 55m
Porto
Thu 4/30
5:55 am-3:10 pm
1 stop15h 15m
$756
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Fri 5/1
4:20 pm-6:45 pm
1 stop20h 25m
Lisbon Humberto Delgado
Mon 5/11
3:35 pm-2:15 pm
1 stop28h 40m
$774
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Chicago with our price prediction graph.
ORD-OPO
ORD-LIS
MDW-LIS
ORD-FAO
ORD-FNC
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 Chicago to Portugal
CHI-PT0
ORD-OPO
ORD-LIS
MDW-LIS
ORD-FAO
What is the cheapest month to book a flight from Chicago to Portugal?
Currently, February is the cheapest month in which you can book a flight from Chicago to Portugal (average of $382). Flying from Chicago to Portugal in June is currently the most expensive (average of $680). 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 CHI to PT?
Find hourly flight availability from Chicago to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 24, 2026.
When flying from Chicago to Portugal, 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 Chicago to Portugal delayed?
About 39% of weekly flights between Chicago and Portugal have experienced delays in the past year, with the average delay time being 143 minutes.
What is the most punctual flight time for Chicago to Portugal flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Portugal flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 39% of flights being delayed.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated March 24, 2026.
Read reviews from past customers who have flown United Airlines,Aer Lingus, andAir Canada from Chicago to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Entertainment
7.1
Crew
8.1
Boarding
7.7
Food
6.6
Comfort
7.3
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Chicago to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Portugal by cabin class
Find flights from Chicago to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Portugal flights
Browse other Chicago and Portugal flight options. Last updated on March 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Portugal flights
Consider these flights traveling from Chicago to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 10 airlines flying from Chicago to Portugal
Discover the top 10 airlines that operate flights from Chicago to Portugal. 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 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$478 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$373 | Average$536 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$450 | Average$814 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$470 | Average$605 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$483 | Average$682 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$685 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$496 | Average$702 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$497 | Average$867 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$503 | Average$600 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$505 | Average$721 | FlexibilityNo cancel fee | On-time71% |