$294+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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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 June 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 June 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Mon 11/27:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Wed 11/1111:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 6/18![Scandinavian Airlines logo]()
$631
This FlightHub deal was found by Cheapflights users on 6/19. 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 FlightHub 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
Sat 11/712:00 pm
OPO
- ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$667
This Scandinavian Airlines deal was found by Cheapflights users on 6/20. 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.
Sun 11/17:15 pm
ORD
- FNC
2 stops37h 50m
Scandinavian Airlines
Tue 11/103:55 pm
FNC
- ORD
2 stops30h 50m
Scandinavian Airlines
Deal found 6/20![Scandinavian Airlines logo]()
$682
This Scandinavian Airlines deal was found by Cheapflights users on 6/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:15 pm
ORD
- FNC
2 stops37h 50m
Scandinavian Airlines
Tue 11/173:55 pm
FNC
- ORD
2 stops30h 50m
Scandinavian Airlines
Deal found 6/17![Scandinavian Airlines logo]()
$683
This Scandinavian Airlines deal was found by Cheapflights users on 6/19. 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 Scandinavian Airlines 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
Wed 11/1811:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$690
This oojo deal was found by Cheapflights users on 6/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:10 pm
ORD
- OPO
1 stop11h 20m
TAP AIR PORTUGAL
Thu 11/198:00 pm
OPO
- ORD
1 stop25h 30m
TAP AIR PORTUGAL
Deal found 6/18![TAP AIR PORTUGAL logo]()
$691
This oojo deal was found by Cheapflights users on 6/20. 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.
Wed 12/27:00 pm
ORD
- OPO
1 stop16h 00m
TAP AIR PORTUGAL
Wed 12/97:00 am
OPO
- ORD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$692
This FlightHub deal was found by Cheapflights users on 6/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:15 pm
ORD
- OPO
1 stop33h 55m
Scandinavian Airlines
Thu 11/195:50 pm
OPO
- ORD
1 stop28h 55m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$707
This oojo deal was found by Cheapflights users on 6/19. 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.
Sun 11/18:10 pm
ORD
- OPO
1 stop15h 50m
TAP AIR PORTUGAL
Sun 11/87:00 am
OPO
- ORD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 6/19![TAP AIR PORTUGAL logo]()
$711
This Scandinavian Airlines deal was found by Cheapflights users on 6/20. 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 11/57:15 pm
ORD
- FNC
2 stops37h 30m
Scandinavian Airlines
Tue 11/103:55 pm
FNC
- ORD
2 stops54h 50m
Scandinavian Airlines
Deal found 6/20![Scandinavian Airlines logo]()
$712
This Scandinavian Airlines deal was found by Cheapflights users on 6/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:15 pm
ORD
- FNC
2 stops37h 30m
Scandinavian Airlines
Tue 11/173:55 pm
FNC
- ORD
2 stops30h 50m
Scandinavian Airlines
Deal found 6/17![Scandinavian Airlines logo]()
$713
This Mytrip deal was found by Cheapflights users on 6/19. 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.
Sun 8/96:00 pm
ORD
- OPO
2 stops23h 50m
Multiple Airlines
Tue 8/252:00 pm
OPO
- ORD
2 stops30h 45m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$714
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 June 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 June 21, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 6/19. 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 Scandinavian Airlines 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 11/2112:00 pm
OPO
- ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$690
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Sun 11/297:00 am
ORD
- OPO
1 stop20h 30m
United Airlines
Fri 12/116:00 am
OPO
- ORD
1 stop20h 05m
United Airlines
Deal found 6/20![United Airlines logo]()
$759
This Turkish Airlines deal was found by Cheapflights users on 6/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:25 am
ORD
- OPO
1 stop16h 15m
Turkish Airlines
Thu 10/14:40 pm
OPO
- ORD
1 stop23h 00m
Turkish Airlines
Deal found 6/16![Turkish Airlines logo]()
$783
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/20. 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.
Sun 11/18:10 pm
ORD
- FNC
1 stop22h 50m
TAP AIR PORTUGAL
Thu 11/129:15 pm
FNC
- ORD
1 stop24h 15m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$825
This KLM deal was found by Cheapflights users on 6/20. 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 10/195:45 pm
ORD
- FNC
2 stops33h 50m
KLM
Fri 10/306:00 pm
FNC
- ORD
1 stop26h 25m
KLM
Deal found 6/20![KLM logo]()
$825
This Delta deal was found by Cheapflights users on 6/17. 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.
Sun 11/11:35 pm
ORD
- OPO
2 stops15h 00m
Delta
Sun 11/85:00 am
OPO
- ORD
1 stop15h 25m
Delta
Deal found 6/17![Delta logo]()
$849
This United deal was found by Cheapflights users on 6/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:00 am
ORD
- PDL
1 stop21h 40m
Multiple Airlines
Wed 7/159:35 am
PDL
- ORD
2 stops27h 15m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$861
This SWISS deal was found by Cheapflights users on 6/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 pm
ORD
- OPO
1 stop30h 50m
SWISS
Wed 8/2612:15 pm
OPO
- ORD
1 stop33h 40m
SWISS
Deal found 6/20![SWISS logo]()
$926
This Scandinavian Airlines deal was found by Cheapflights users on 6/19. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Mon 11/1611:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$690
This Scandinavian Airlines deal was found by Cheapflights users on 6/19. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:15 pm
ORD
- OPO
1 stop33h 50m
Scandinavian Airlines
Wed 11/1811:55 am
OPO
- ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 6/19![Scandinavian Airlines logo]()
$690
This Turkish Airlines deal was found by Cheapflights users on 6/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm
ORD
- OPO
1 stop37h 35m
Turkish Airlines
Wed 10/74:40 pm
OPO
- ORD
1 stop23h 00m
Turkish Airlines
Deal found 6/16![Turkish Airlines logo]()
$783
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/20. 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.
Sun 11/158:10 pm
ORD
- FNC
1 stop22h 50m
TAP AIR PORTUGAL
Tue 11/246:10 pm
FNC
- ORD
1 stop27h 20m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$825
This United Airlines deal was found by Cheapflights users on 6/20. 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.
Mon 7/66:28 pm
ORD
- PDL
1 stop9h 12m
United Airlines
Wed 7/159:35 am
PDL
- ORD
1 stop12h 22m
United Airlines
Deal found 6/20![United Airlines logo]()
$863
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Sat 10/37:25 pm
ORD
- FAO
2 stops14h 30m
Multiple Airlines
Sat 10/103:20 pm
FAO
- ORD
1 stop29h 05m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$887
This oojo deal was found by Cheapflights users on 6/20. 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.
Wed 8/126:00 pm
ORD
- FNC
1 stop14h 00m
TAP AIR PORTUGAL
Wed 8/197:35 pm
FNC
- ORD
1 stop23h 05m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$826
This Delta deal was found by Cheapflights users on 6/20. 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 9/231:55 pm
ORD
- OPO
2 stops19h 30m
Delta
Wed 10/75:00 am
OPO
- ORD
2 stops17h 49m
Delta
Deal found 6/20![Delta logo]()
$909
This KLM deal was found by Cheapflights users on 6/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:20 pm
ORD
- FNC
1 stop34h 55m
KLM
Fri 10/306:00 pm
FNC
- ORD
1 stop26h 25m
KLM
Deal found 6/19![KLM logo]()
$946
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 7/216:28 pm
ORD
- PDL
1 stop9h 12m
United Airlines
Tue 7/2811:00 am
PDL
- ORD
1 stop16h 06m
United Airlines
Deal found 6/21![United Airlines logo]()
$872
This Turkish Airlines deal was found by Cheapflights users on 6/18. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:25 am
ORD
- OPO
1 stop22h 15m
Turkish Airlines
Sat 9/124:40 pm
OPO
- ORD
1 stop23h 00m
Turkish Airlines
Deal found 6/18![Turkish Airlines logo]()
$912
This oojo deal was found by Cheapflights users on 6/20. 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 9/266:05 pm
ORD
- FNC
1 stop11h 35m
TAP AIR PORTUGAL
Sat 10/105:50 am
FNC
- ORD
1 stop16h 15m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$863
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:10 pm
ORD
- OPO
1 stop16h 20m
Delta
Tue 8/2511:35 am
OPO
- ORD
1 stop32h 55m
Delta
Deal found 6/18![Delta logo]()
$950
This KLM deal was found by Cheapflights users on 6/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:50 pm
ORD
- FAO
1 stop33h 10m
KLM
Mon 9/289:45 pm
FAO
- ORD
1 stop22h 30m
KLM
Deal found 6/19![KLM logo]()
$971
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 10/58:45 am
ORD
- OPO
1 stop16h 15m
United Airlines
Tue 10/206:00 am
OPO
- ORD
1 stop19h 55m
United Airlines
Deal found 6/19![United Airlines logo]()
$893
This Mytrip deal was found by Cheapflights users on 6/19. 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.
Sat 9/2611:05 am
ORD
- PDL
3 stops31h 40m
Multiple Airlines
Thu 10/16:30 am
PDL
- ORD
3 stops32h 47m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,027
This Delta deal was found by Cheapflights users on 6/17. 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.
Tue 7/215:18 pm
ORD
- LIS
2 stops15h 37m
Delta
Tue 7/285:00 am
LIS
- ORD
1 stop15h 15m
Delta
Deal found 6/17![Delta logo]()
$971
This KLM deal was found by Cheapflights users on 6/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:07 pm
ORD
- FAO
2 stops17h 53m
KLM
Wed 8/128:20 pm
FAO
- ORD
1 stop23h 55m
KLM
Deal found 6/19![KLM logo]()
$976
This Mytrip deal was found by Cheapflights users on 6/20. 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.
Tue 7/215:35 pm
ORD
- FAO
2 stops21h 20m
Multiple Airlines
Tue 7/289:05 am
FAO
- ORD
3 stops37h 52m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,041
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/20. 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.
Wed 12/211:25 am
ORD
- LIS
1 stop12h 10m
TAP AIR PORTUGAL
Fri 12/1111:55 am
LIS
- ORD
Nonstop9h 35m
TAP AIR PORTUGAL
Deal found 6/20![TAP AIR PORTUGAL logo]()
$960
This Delta deal was found by Cheapflights users on 6/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:05 am
MDW
- OPO
2 stops22h 20m
Delta
Tue 7/285:00 am
OPO
- MDW
2 stops19h 25m
Delta
Deal found 6/21![Delta logo]()
$973
This KAYAK deal was found by Cheapflights users on 6/16. 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.
Thu 10/226:50 pm
ORD
- FAO
2 stops41h 05m
Scandinavian Airlines
Sun 10/2510:35 am
FAO
- ORD
2 stops36h 10m
Scandinavian Airlines
Deal found 6/16![Scandinavian Airlines logo]()
$1,075
Last-minute flights from Chicago to PortugalDiscover last-minute flight deals from Chicago to Portugal. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Portugal. Data last updated June 21, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 6/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:40 pm
ORD
- PDL
1 stop30h 40m
Multiple Airlines
Wed 7/159:35 am
PDL
- ORD
1 stop10h 20m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$830
This Gotogate deal was found by Cheapflights users on 6/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:40 pm
ORD
- PDL
1 stop30h 40m
Air Canada
Wed 7/159:35 am
PDL
- ORD
2 stops15h 30m
Air Canada
Deal found 6/19![Air Canada logo]()
$845
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 7/612:45 pm
ORD
- PDL
2 stops14h 55m
United Airlines
Wed 7/1511:00 am
PDL
- ORD
2 stops25h 27m
United Airlines
Deal found 6/19![United Airlines logo]()
$856
This Mytrip deal was found by Cheapflights users on 6/18. 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 7/87:25 pm
ORD
- OPO
3 stops23h 15m
Multiple Airlines
Wed 7/157:10 am
OPO
- ORD
2 stops35h 30m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$854
This Mytrip deal was found by Cheapflights users on 6/17. 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 7/147:25 pm
ORD
- OPO
2 stops19h 30m
Multiple Airlines
Tue 7/218:25 am
OPO
- ORD
2 stops18h 04m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$795
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 7/142:40 pm
ORD
- FNC
1 stop36h 45m
Multiple Airlines
Tue 7/213:40 pm
FNC
- ORD
1 stop34h 15m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$900
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:45 pm
ORD
- OPO
1 stop20h 10m
TAP AIR PORTUGAL
Thu 7/237:00 am
OPO
- ORD
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/17![TAP AIR PORTUGAL logo]()
$819
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Tue 7/214:31 pm
ORD
- PDL
1 stop11h 09m
United Airlines
Tue 7/2811:00 am
PDL
- ORD
1 stop15h 00m
United Airlines
Deal found 6/18![United Airlines logo]()
$872
This Mytrip deal was found by Cheapflights users on 6/17. 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 7/217:25 pm
ORD
- FAO
2 stops22h 05m
Multiple Airlines
Tue 7/288:00 am
FAO
- ORD
2 stops16h 15m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$888
This FlightHub deal was found by Cheapflights users on 6/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 pm
ORD
- OPO
1 stop19h 00m
TAP AIR PORTUGAL
Wed 8/1210:30 pm
OPO
- ORD
1 stop20h 10m
TAP AIR PORTUGAL
Deal found 6/18![TAP AIR PORTUGAL logo]()
$793
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/294:40 pm
ORD
- OPO
1 stop16h 20m
TAP AIR PORTUGAL
Thu 8/137:00 am
OPO
- ORD
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/18![TAP AIR PORTUGAL logo]()
$803
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Thu 7/304:45 pm
ORD
- OPO
1 stop24h 15m
TAP AIR PORTUGAL
Thu 8/137:00 am
OPO
- ORD
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/18![TAP AIR PORTUGAL logo]()
$853
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 June 21, 2026.
Search for one-way flight options from Chicago to Portugal. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This KAYAK deal was found by Cheapflights users on 6/20. 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.
Wed 11/111:15 pm
ORD
- LIS
2 stops14h 55m
Aer Lingus
Deal found 6/20![Aer Lingus logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 10/206:05 am
ORD
- OPO
2 stops34h 55m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 10/117:25 pm
ORD
- OPO
2 stops19h 15m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 10/206:05 am
ORD
- LIS
2 stops34h 25m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 10/410:25 pm
ORD
- OPO
2 stops40h 15m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 10/206:40 am
MDW
- OPO
3 stops34h 20m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 11/136:30 pm
ORD
- LIS
2 stops37h 35m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 8/2310:25 pm
ORD
- OPO
3 stops43h 15m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:13 pm
ORD
- FAO
2 stops58h 17m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Mon 11/166:30 pm
ORD
- LIS
2 stops21h 35m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 10/2012:03 pm
MDW
- LIS
3 stops50h 27m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Tue 10/139:33 pm
ORD
- FNC
3 stops43h 32m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$331
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 June 21, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $631 (Kiwi.com) |
One-way from | $294 (KAYAK) |
Popular in | June |
Cheapest in | February |
Average price | $1,220 |
Good round-trip deal | $706 or less |
Good one-way deal | $558 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 June 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
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 11/2
7:15 pm-11:05 am
1 stop33h 50m
Porto
Sat 11/21
12:00 pm-4:45 pm
1 stop34h 45m
$690
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sat 11/7
7:15 pm-11:05 am
1 stop33h 50m
Porto
Mon 11/16
11:55 am-4:45 pm
1 stop34h 50m
$690
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sat 11/7
7:15 pm-11:05 am
1 stop33h 50m
Porto
Wed 11/18
11:55 am-4:45 pm
1 stop34h 50m
$690
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 11/29
7:00 am-9:30 am
1 stop20h 30m
Porto
Fri 12/11
6:00 am-8:05 pm
1 stop20h 05m
$759
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 9/20
11:25 am-9:40 am
1 stop16h 15m
Porto
Thu 10/1
4:40 pm-9:40 am
1 stop23h 00m
$783
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 9/23
8:10 pm-3:45 pm
1 stop37h 35m
Porto
Wed 10/7
4:40 pm-9:40 am
1 stop23h 00m
$783
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Sun 11/1
8:10 pm-1:00 am
1 stop22h 50m
Funchal Madeira
Thu 11/12
9:15 pm-3:30 pm
1 stop24h 15m
$825
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Mon 10/19
5:45 pm-9:35 am
2 stops33h 50m
Funchal Madeira
Fri 10/30
6:00 pm-3:25 pm
1 stop26h 25m
$825
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Sun 11/15
8:10 pm-1:00 am
1 stop22h 50m
Funchal Madeira
Tue 11/24
6:10 pm-3:30 pm
1 stop27h 20m
$825
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Wed 8/12
6:00 pm-2:00 pm
1 stop14h 00m
Funchal Madeira
Wed 8/19
7:35 pm-12:40 pm
1 stop23h 05m
$826
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.
MDW-OPO
MDW-LIS
ORD-OPO
ORD-FNC
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
MDW-OPO
MDW-LIS
ORD-OPO
ORD-FNC
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 $3,502). 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 June 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 37% of weekly flights between Chicago and Portugal have experienced delays in the past year, with the average delay time being 130 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 36% 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 June 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.
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
Food
6.6
Boarding
7.7
Overall
7.4
Comfort
7.3
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Entertainment
7.1
Crew
8.1
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 June 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$496 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$371 | Average$536 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$450 | Average$820 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$470 | Average$625 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$474 | Average$704 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$489 | Average$996 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$489 | Average$719 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$492 | Average$647 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$494 | Average$726 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$496 | Average$751 | FlexibilityNo cancel fee | On-time77% |