$239+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
Jun 20 — Jun 271
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 May 21, 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 May 21, 2026.
This oojo deal was found by Cheapflights users on 5/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:15 pm
ORD
- OPO
1 stop15h 30m
Scandinavian Airlines
Sun 11/155:35 pm
OPO
- ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$569
This FlightHub deal was found by Cheapflights users on 5/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Sat 11/2112:00 pm
OPO
- ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$576
This Scandinavian Airlines deal was found by Cheapflights users on 5/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:15 pm
ORD
- OPO
1 stop15h 45m
Scandinavian Airlines
Mon 11/2311:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$598
This Scandinavian Airlines deal was found by Cheapflights users on 5/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:15 pm
ORD
- OPO
1 stop33h 55m
Scandinavian Airlines
Mon 11/2311:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$614
This Justfly.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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.
Mon 11/27:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Sat 11/1412:00 pm
OPO
- ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 5/18![Scandinavian Airlines logo]()
$638
This FlightHub deal was found by Cheapflights users on 5/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:30 am
ORD
- OPO
2 stops18h 35m
Scandinavian Airlines
Sun 11/85:35 pm
OPO
- ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$640
This Scandinavian Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:15 pm
ORD
- OPO
1 stop33h 55m
Scandinavian Airlines
Sat 11/2112:00 pm
OPO
- ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 5/18![Scandinavian Airlines logo]()
$661
This Justfly.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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.
Mon 11/27:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Sun 11/155:35 pm
OPO
- ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 5/18![Scandinavian Airlines logo]()
$678
This Scandinavian Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Mon 11/1611:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 5/18![Scandinavian Airlines logo]()
$691
This Scandinavian Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:15 pm
ORD
- OPO
1 stop33h 55m
Scandinavian Airlines
Sun 11/225:35 pm
OPO
- ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 5/18![Scandinavian Airlines logo]()
$701
This Gotogate deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 12/137:15 pm
ORD
- FNC
1 stop36h 55m
Scandinavian Airlines
Tue 12/223:00 pm
FNC
- ORD
1 stop31h 55m
Scandinavian Airlines
Deal found 5/17![Scandinavian Airlines logo]()
$704
This KAYAK deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:15 pm
ORD
- FNC
1 stop36h 55m
Scandinavian Airlines
Tue 11/103:55 pm
FNC
- ORD
2 stops30h 50m
Scandinavian Airlines
Deal found 5/16![Scandinavian Airlines logo]()
$707
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 May 21, 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 May 21, 2026.
This FlightHub deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 pm
ORD
- FNC
1 stop14h 35m
TAP AIR PORTUGAL
Tue 11/106:10 pm
FNC
- ORD
1 stop27h 20m
TAP AIR PORTUGAL
Deal found 5/16![TAP AIR PORTUGAL logo]()
$751
This Scandinavian Airlines deal was found by Cheapflights users on 5/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:00 am
ORD
- FNC
2 stops26h 35m
Scandinavian Airlines
Sat 11/213:35 pm
FNC
- ORD
2 stops31h 10m
Scandinavian Airlines
Deal found 5/20![Scandinavian Airlines logo]()
$887
This SWISS deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:05 pm
ORD
- LIS
1 stop13h 40m
SWISS
Fri 8/285:55 am
LIS
- ORD
1 stop16h 00m
SWISS
Deal found 5/16![SWISS logo]()
$891
This Mytrip deal was found by Cheapflights users on 5/19. 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.
Mon 10/128:45 am
ORD
- FAO
3 stops28h 25m
Multiple Airlines
Sun 10/186:05 am
FAO
- ORD
2 stops21h 30m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$930
This Delta deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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.
Wed 7/85:10 pm
ORD
- OPO
1 stop22h 50m
Delta
Mon 7/1311:25 am
OPO
- ORD
1 stop32h 50m
Delta
Deal found 5/17![Delta logo]()
$961
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:40 am
ORD
- FAO
1 stop18h 40m
United Airlines
Tue 7/2111:40 am
FAO
- ORD
1 stop12h 54m
United Airlines
Deal found 5/17![United Airlines logo]()
$964
This KLM deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:45 pm
ORD
- FAO
2 stops17h 40m
KLM
Mon 9/289:45 pm
FAO
- ORD
1 stop22h 30m
KLM
Deal found 5/16![KLM logo]()
$977
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:55 pm
MDW
- PDL
2 stops32h 15m
WestJet
Sat 7/1111:30 am
PDL
- MDW
2 stops30h 08m
WestJet
Deal found 5/16![WestJet logo]()
$1,061
This British Airways deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:05 pm
ORD
- FNC
1 stop35h 30m
British Airways
Tue 7/147:35 pm
FNC
- ORD
1 stop26h 20m
British Airways
Deal found 5/17![British Airways logo]()
$1,298
This SWISS deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:20 pm
ORD
- LIS
1 stop18h 25m
SWISS
Tue 9/15:55 am
LIS
- ORD
1 stop16h 00m
SWISS
Deal found 5/16![SWISS logo]()
$950
This Mytrip deal was found by Cheapflights users on 5/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:25 am
ORD
- FAO
3 stops34h 00m
Multiple Airlines
Mon 6/86:10 pm
FAO
- ORD
2 stops31h 15m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$956
This Delta deal was found by Cheapflights users on 5/20. 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.
Wed 8/267:05 am
ORD
- LIS
2 stops21h 40m
Delta
Fri 9/115:00 am
LIS
- ORD
1 stop15h 15m
Delta
Deal found 5/20![Delta logo]()
$972
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:10 pm
ORD
- LIS
Nonstop8h 05m
TAP AIR PORTUGAL
Mon 12/76:35 pm
LIS
- ORD
1 stop18h 56m
TAP AIR PORTUGAL
Deal found 5/17![TAP AIR PORTUGAL logo]()
$977
This KLM deal was found by Cheapflights users on 5/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:00 pm
ORD
- OPO
1 stop15h 30m
KLM
Thu 7/301:25 pm
OPO
- ORD
1 stop14h 27m
KLM
Deal found 5/20![KLM logo]()
$977
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 8/78:45 am
ORD
- OPO
1 stop16h 15m
United Airlines
Tue 8/1812:15 pm
OPO
- ORD
2 stops28h 43m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,016
This FlightHub deal was found by Cheapflights users on 5/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:35 pm
ORD
- FAO
1 stop17h 30m
Multiple Airlines
Mon 9/289:10 am
FAO
- ORD
1 stop33h 25m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$970
This Delta deal was found by Cheapflights users on 5/20. 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.
Mon 7/63:55 pm
ORD
- OPO
2 stops17h 30m
Delta
Wed 7/225:00 am
OPO
- ORD
2 stops21h 31m
Delta
Deal found 5/20![Delta logo]()
$973
This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
ORD
- OPO
1 stop21h 45m
United Airlines
Sat 7/2511:20 am
OPO
- ORD
1 stop28h 59m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,029
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:15 pm
ORD
- FNC
2 stops18h 00m
TAP AIR PORTUGAL
Sun 9/204:05 am
FNC
- ORD
1 stop17h 55m
TAP AIR PORTUGAL
Deal found 5/20![TAP AIR PORTUGAL logo]()
$1,036
This SWISS deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:05 pm
ORD
- FAO
2 stops16h 35m
SWISS
Tue 7/216:25 pm
FAO
- ORD
2 stops24h 10m
SWISS
Deal found 5/17![SWISS logo]()
$1,050
This Air Canada deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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.
Tue 6/168:45 am
ORD
- TER
2 stops23h 05m
Air Canada
Sun 6/211:40 pm
TER
- ORD
2 stops47h 10m
Air Canada
Deal found 5/17![Air Canada logo]()
$2,317
This KLM deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 10/54:50 pm
ORD
- FNC
1 stop34h 45m
KLM
Thu 10/1510:05 am
FNC
- ORD
1 stop34h 10m
KLM
Deal found 5/18![KLM logo]()
$1,069
This Delta deal was found by Cheapflights users on 5/20. 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.
Mon 7/205:18 pm
ORD
- OPO
2 stops16h 07m
Delta
Thu 7/305:00 am
OPO
- ORD
2 stops17h 23m
Delta
Deal found 5/20![Delta logo]()
$973
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
ORD
- PDL
1 stop18h 40m
Multiple Airlines
Wed 9/163:30 pm
PDL
- ORD
2 stops35h 05m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Tue 7/143:40 pm
ORD
- LIS
1 stop11h 40m
United Airlines
Sun 7/196:15 am
LIS
- ORD
1 stop18h 00m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,036
This oojo deal was found by Cheapflights users on 5/19. 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.
Mon 6/159:17 am
MDW
- PDL
2 stops18h 48m
WestJet
Mon 6/229:35 am
PDL
- MDW
2 stops29h 34m
WestJet
Deal found 5/19![WestJet logo]()
$1,258
This Delta deal was found by Cheapflights users on 5/20. 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 10/106:10 pm
ORD
- LIS
2 stops17h 40m
Delta
Tue 10/205:00 am
LIS
- ORD
2 stops19h 10m
Delta
Deal found 5/20![Delta logo]()
$974
This Mytrip deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:25 pm
ORD
- FAO
3 stops22h 25m
Multiple Airlines
Mon 9/146:10 pm
FAO
- ORD
3 stops32h 02m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$991
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/20. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 pm
ORD
- LIS
Nonstop8h 10m
TAP AIR PORTUGAL
Mon 9/2112:15 pm
LIS
- ORD
1 stop16h 00m
TAP AIR PORTUGAL
Deal found 5/20![TAP AIR PORTUGAL logo]()
$1,102
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Sat 8/19:40 pm
ORD
- LIS
1 stop30h 50m
United Airlines
Sat 8/1511:25 am
LIS
- ORD
1 stop28h 54m
United Airlines
Deal found 5/19![United Airlines logo]()
$1,040
Last-minute flights from Chicago to PortugalDiscover last-minute flight deals from Chicago to Portugal. Data last updated May 21, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Portugal. Data last updated May 21, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:43 am
ORD
- LIS
2 stops13h 47m
Multiple Airlines
Thu 6/48:15 am
LIS
- ORD
2 stops18h 01m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$873
This Mytrip deal was found by Cheapflights users on 5/19. 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 6/39:55 am
ORD
- OPO
2 stops29h 25m
Multiple Airlines
Tue 6/166:35 pm
OPO
- ORD
2 stops27h 25m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$794
This Mytrip deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/34:37 pm
ORD
- OPO
2 stops22h 43m
Multiple Airlines
Wed 6/102:05 pm
OPO
- ORD
2 stops29h 00m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$825
This Mytrip deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:00 pm
ORD
- LIS
2 stops34h 30m
Multiple Airlines
Mon 6/811:35 am
LIS
- ORD
1 stop16h 30m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$864
This Mytrip deal was found by Cheapflights users on 5/19. 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 6/108:50 am
ORD
- LIS
1 stop18h 45m
Multiple Airlines
Wed 6/178:15 am
LIS
- ORD
2 stops18h 01m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$877
This Mytrip deal was found by Cheapflights users on 5/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:15 am
MDW
- LIS
2 stops14h 15m
Multiple Airlines
Wed 6/178:15 am
LIS
- MDW
2 stops31h 25m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$882
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:52 am
ORD
- LIS
2 stops18h 43m
Multiple Airlines
Mon 6/158:15 am
LIS
- ORD
2 stops30h 45m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$863
This Mytrip deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/113:20 pm
MDW
- LIS
2 stops33h 10m
Multiple Airlines
Mon 6/158:15 am
LIS
- MDW
3 stops34h 31m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$879
This Mytrip deal was found by Cheapflights users on 5/19. 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.
Thu 6/112:00 pm
ORD
- LIS
2 stops34h 30m
Multiple Airlines
Tue 6/168:15 am
LIS
- ORD
2 stops18h 01m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$882
This Mytrip deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:25 am
ORD
- OPO
2 stops17h 20m
Multiple Airlines
Tue 6/238:25 am
OPO
- ORD
2 stops34h 45m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$875
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/172:15 pm
ORD
- LIS
1 stop11h 05m
Multiple Airlines
Tue 6/238:15 am
LIS
- ORD
2 stops35h 07m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$879
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/193:20 pm
MDW
- LIS
2 stops24h 25m
Multiple Airlines
Thu 6/2511:35 am
LIS
- MDW
1 stop28h 05m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$884
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 May 21, 2026.
Search for one-way flight options from Chicago to Portugal. Find affordable one-way fares based on user searches. Data last updated May 21, 2026.
This KAYAK deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:40 am
ORD
- LIS
2 stops16h 35m
Aer Lingus
Deal found 5/16![Aer Lingus logo]()
$239
This Ticket deal was found by Cheapflights users on 5/19. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:50 pm
ORD
- LIS
1 stop18h 05m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/1710:15 am
MDW
- OPO
3 stops41h 20m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:15 am
MDW
- OPO
3 stops39h 05m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$344
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:05 pm
ORD
- LIS
1 stop21h 55m
British Airways
Deal found 5/20![British Airways logo]()
$349
This American Airlines deal was found by Cheapflights users on 5/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:05 pm
ORD
- LIS
1 stop14h 50m
American Airlines
Deal found 5/20![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 10/145:55 pm
ORD
- LIS
1 stop14h 15m
American Airlines
Deal found 5/17![American Airlines logo]()
$353
This British Airways deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:15 pm
ORD
- LIS
1 stop30h 50m
British Airways
Deal found 5/17![British Airways logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:00 pm
ORD
- LIS
1 stop18h 35m
Aer Lingus
Deal found 5/16![Aer Lingus logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sun 11/156:30 pm
ORD
- LIS
2 stops38h 05m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:15 am
MDW
- LIS
3 stops53h 50m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 10/257:30 pm
ORD
- LIS
2 stops20h 30m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$359
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 May 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $569 (oojo) |
One-way from | $239 (KAYAK) |
Popular in | June |
Cheapest in | February |
Average price | $989 |
Good round-trip deal | $855 or less |
Good one-way deal | $513 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 May 21, 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
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Wed 11/4
7:00 pm-3:35 pm
1 stop14h 35m
Funchal Madeira
Tue 11/10
6:10 pm-3:30 pm
1 stop27h 20m
$751
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Fri 11/13
7:00 am-3:35 pm
2 stops26h 35m
Funchal Madeira
Sat 11/21
3:35 pm-4:45 pm
2 stops31h 10m
$887
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Wed 8/19
7:05 pm-2:45 pm
1 stop13h 40m
Lisbon Humberto Delgado
Fri 8/28
5:55 am-3:55 pm
1 stop16h 00m
$891
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Mon 10/12
8:45 am-7:10 pm
3 stops28h 25m
Faro
Sun 10/18
6:05 am-9:35 pm
2 stops21h 30m
$930
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Fri 8/21
2:20 pm-2:45 pm
1 stop18h 25m
Lisbon Humberto Delgado
Tue 9/1
5:55 am-3:55 pm
1 stop16h 00m
$950
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Wed 6/3
7:25 am-11:25 pm
3 stops34h 00m
Faro
Mon 6/8
6:10 pm-7:25 pm
2 stops31h 15m
$956
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 7/8
5:10 pm-10:00 pm
1 stop22h 50m
Porto
Mon 7/13
11:25 am-2:15 pm
1 stop32h 50m
$961
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Mon 7/6
8:40 am-9:20 am
1 stop18h 40m
Faro
Tue 7/21
11:40 am-6:34 pm
1 stop12h 54m
$964
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Mon 9/21
3:35 pm-3:05 pm
1 stop17h 30m
Faro
Mon 9/28
9:10 am-12:35 pm
1 stop33h 25m
$970
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Wed 8/26
7:05 am-10:45 am
2 stops21h 40m
Lisbon Humberto Delgado
Fri 9/11
5:00 am-2:15 pm
1 stop15h 15m
$972
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-FNC
ORD-LIS
MDW-LIS
ORD-FAO
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-FNC
ORD-LIS
MDW-LIS
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 $360). Flying from Chicago to Portugal in July is currently the most expensive (average of $3,403). 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 May 21, 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 38% of weekly flights between Chicago and Portugal have experienced delays in the past year, with the average delay time being 135 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?
Wednesday 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 38% of flights being delayed.
How far ahead should I book a flight from Chicago to Portugal?
To ensure you get the cheapest price possible for a flight from Chicago to Portugal, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 May 21, 2026.
Read reviews from past customers who have flown United Airlines,Aer Lingus, andTAP AIR PORTUGAL 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.
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Entertainment
7.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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 May 21, 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 May 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$485 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$371 | Average$536 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$450 | Average$825 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$470 | Average$625 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$483 | Average$700 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$711 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$496 | Average$742 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$497 | Average$873 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$497 | Average$862 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$503 | Average$741 | FlexibilityNo cancel fee | On-time72% |