$305+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LIS
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 August 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 August 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/238:01 pm -
2 stops54h 44m
Wed 11/49:35 pm -
1 stop22h 25m
Deal found 8/20![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/217:25 pm -
2 stops18h 20m
Tue 9/298:00 am -
1 stop36h 00m
Deal found 8/20![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/217:25 pm -
2 stops18h 20m
Wed 9/309:05 am -
1 stop16h 10m
Deal found 8/20![Multiple Airlines logo]()
$595
This lol.travel deal was found by Cheapflights users on 8/19. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 pm -
1 stop15h 00m
Tue 10/139:15 pm -
1 stop24h 45m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$628
This Gotogate deal was found by Cheapflights users on 8/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:00 pm -
1 stop17h 00m
Thu 10/296:00 pm -
1 stop27h 30m
Deal found 8/16![TAP AIR PORTUGAL logo]()
$640
This Gotogate deal was found by Cheapflights users on 8/17. 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 9/206:00 pm -
1 stop23h 00m
Fri 10/25:05 am -
1 stop16h 55m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$650
This Gotogate deal was found by Cheapflights users on 8/19. 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.
Thu 10/86:00 pm -
1 stop18h 55m
Thu 10/157:00 am -
1 stop11h 40m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$651
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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.
Sun 9/206:00 pm -
1 stop15h 00m
Thu 10/17:00 am -
1 stop11h 40m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$652
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:10 pm -
1 stop15h 50m
Sun 11/85:00 am -
1 stop16h 30m
Deal found 8/18![TAP AIR PORTUGAL logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/203:45 pm -
1 stop18h 30m
Wed 9/309:05 am -
1 stop16h 10m
Deal found 8/20![Multiple Airlines logo]()
$655
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/157:25 pm -
2 stops20h 55m
Tue 9/228:00 am -
1 stop17h 15m
Deal found 8/20![Multiple Airlines logo]()
$658
This FlightHub deal was found by Cheapflights users on 8/19. 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.
Wed 10/76:00 pm -
1 stop17h 05m
Wed 10/147:00 am -
1 stop15h 00m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$659
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 August 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 August 21, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 pm -
1 stop19h 15m
Tue 12/84:10 am -
1 stop17h 20m
Deal found 8/16![TAP AIR PORTUGAL logo]()
$736
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/159:00 pm -
1 stop20h 30m
Tue 9/228:00 am -
1 stop17h 15m
Deal found 8/20![Multiple Airlines logo]()
$750
This Turkish Airlines deal was found by Cheapflights users on 8/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
1 stop37h 35m
Wed 10/710:45 am -
1 stop28h 55m
Deal found 8/17![Turkish Airlines logo]()
$753
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:40 pm -
1 stop32h 25m
Wed 10/215:05 am -
1 stop15h 50m
Deal found 8/16![United Airlines logo]()
$758
This KLM deal was found by Cheapflights users on 8/20. 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.
Wed 10/215:29 pm -
2 stops34h 11m
Wed 10/2810:25 am -
1 stop34h 00m
Deal found 8/20![KLM logo]()
$766
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:44 pm -
2 stops18h 01m
Thu 10/225:00 am -
2 stops19h 00m
Deal found 8/16![Delta logo]()
$774
This British Airways deal was found by Cheapflights users on 8/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:15 pm -
1 stop33h 10m
Tue 10/2012:20 pm -
1 stop35h 55m
Deal found 8/18![British Airways logo]()
$834
This Scandinavian Airlines deal was found by Cheapflights users on 8/18. 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 10/31:29 pm -
2 stops21h 36m
Sun 10/115:55 pm -
1 stop28h 15m
Deal found 8/18![Scandinavian Airlines logo]()
$860
This SWISS deal was found by Cheapflights users on 8/17. 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.
Thu 10/12:20 pm -
1 stop21h 55m
Thu 10/86:25 pm -
2 stops24h 10m
Deal found 8/17![SWISS logo]()
$1,072
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 pm -
1 stop18h 35m
Wed 11/256:30 am -
1 stop14h 00m
Deal found 8/16![TAP AIR PORTUGAL logo]()
$769
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 11/52:00 pm -
2 stops14h 20m
Thu 11/125:00 am -
1 stop16h 20m
Deal found 8/17![United Airlines logo]()
$778
This Delta deal was found by Cheapflights users on 8/19. 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.
Wed 1/1310:40 am -
2 stops17h 55m
Wed 1/205:00 am -
2 stops17h 49m
Deal found 8/19![Delta logo]()
$780
This Turkish Airlines deal was found by Cheapflights users on 8/20. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:25 am -
1 stop23h 00m
Wed 10/284:25 pm -
1 stop23h 35m
Deal found 8/20![Turkish Airlines logo]()
$793
This British Airways deal was found by Cheapflights users on 8/20. 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.
Sun 2/148:00 am -
2 stops17h 40m
Mon 2/228:40 pm -
2 stops26h 09m
Deal found 8/20![Multiple Airlines logo]()
$794
This Air Canada deal was found by Cheapflights users on 8/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/278:50 pm -
2 stops57h 10m
Fri 1/16:40 am -
2 stops33h 27m
Deal found 8/19![Air Canada logo]()
$1,647
This KLM deal was found by Cheapflights users on 8/20. 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.
Wed 9/304:50 pm -
1 stop12h 05m
Sat 10/105:00 am -
1 stop15h 15m
Deal found 8/20![KLM logo]()
$850
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/2110:30 am -
2 stops16h 20m
Tue 10/65:00 am -
1 stop15h 15m
Deal found 8/17![Delta logo]()
$790
This Scandinavian Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/27:30 pm -
2 stops39h 35m
Fri 10/95:55 pm -
1 stop28h 15m
Deal found 8/18![Scandinavian Airlines logo]()
$903
This United deal was found by Cheapflights users on 8/20. 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.
Thu 10/158:45 am -
1 stop18h 35m
Mon 10/195:55 am -
1 stop36h 40m
Deal found 8/20![Multiple Airlines logo]()
$835
This British Airways deal was found by Cheapflights users on 8/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/86:31 pm -
2 stops38h 54m
Mon 2/155:15 pm -
2 stops32h 14m
Deal found 8/16![British Airways logo]()
$934
This Turkish Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/2411:25 am -
1 stop22h 20m
Sat 10/104:40 pm -
1 stop23h 00m
Deal found 8/16![Turkish Airlines logo]()
$862
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:00 pm -
2 stops17h 50m
Fri 10/235:00 am -
1 stop15h 15m
Deal found 8/16![Delta logo]()
$790
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/19. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 pm -
1 stop15h 00m
Wed 10/2110:00 am -
1 stop12h 00m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$893
This Delta deal was found by Cheapflights users on 8/19. 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 11/31:27 pm -
2 stops15h 58m
Mon 11/95:00 am -
2 stops19h 04m
Deal found 8/19![Delta logo]()
$790
This British Airways deal was found by Cheapflights users on 8/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:02 am -
2 stops16h 38m
Wed 11/48:40 pm -
2 stops26h 17m
Deal found 8/21![Multiple Airlines logo]()
$873
This Turkish Airlines deal was found by Cheapflights users on 8/19. 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.
Tue 10/611:25 am -
1 stop16h 20m
Tue 10/1310:40 am -
1 stop29h 00m
Deal found 8/19![Turkish Airlines logo]()
$877
This KLM deal was found by Cheapflights users on 8/16. 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.
Wed 9/307:01 pm -
2 stops14h 29m
Wed 10/75:55 am -
2 stops16h 24m
Deal found 8/16![KLM logo]()
$968
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/18. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/248:10 pm -
1 stop15h 00m
Thu 1/289:15 pm -
1 stop24h 15m
Deal found 8/18![TAP AIR PORTUGAL logo]()
$895
This Delta deal was found by Cheapflights users on 8/20. 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.
Fri 11/61:27 pm -
2 stops15h 58m
Wed 11/115:00 am -
2 stops17h 14m
Deal found 8/20![Delta logo]()
$790
This British Airways deal was found by Cheapflights users on 8/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:05 pm -
1 stop33h 15m
Sat 10/38:00 pm -
1 stop28h 15m
Deal found 8/18![British Airways logo]()
$1,076
Last-minute flights from Chicago to PortugalDiscover last-minute flight deals from Chicago to Portugal. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Portugal. Data last updated August 21, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/157:25 pm -
2 stops20h 55m
Tue 9/228:00 am -
1 stop17h 15m
Deal found 8/20![Multiple Airlines logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/157:25 pm -
2 stops20h 55m
Mon 9/217:50 am -
1 stop36h 10m
Deal found 8/20![Multiple Airlines logo]()
$679
This Gotogate deal was found by Cheapflights users on 8/17. 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 9/206:00 pm -
1 stop23h 00m
Fri 10/25:05 am -
1 stop16h 55m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$650
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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.
Sun 9/206:00 pm -
1 stop15h 00m
Thu 10/17:00 am -
1 stop11h 40m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$652
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/203:45 pm -
1 stop18h 30m
Wed 9/309:05 am -
1 stop16h 10m
Deal found 8/20![Multiple Airlines logo]()
$655
This FlightHub deal was found by Cheapflights users on 8/20. 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.
Sun 9/206:00 pm -
1 stop19h 00m
Tue 9/296:00 pm -
1 stop28h 00m
Deal found 8/20![TAP AIR PORTUGAL logo]()
$663
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/209:00 pm -
1 stop16h 55m
Tue 9/293:00 pm -
2 stops29h 00m
Deal found 8/20![Multiple Airlines logo]()
$678
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/217:25 pm -
2 stops18h 20m
Tue 9/298:00 am -
1 stop36h 00m
Deal found 8/20![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/217:25 pm -
2 stops18h 20m
Wed 9/309:05 am -
1 stop16h 10m
Deal found 8/20![Multiple Airlines logo]()
$595
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/227:05 pm -
1 stop16h 30m
Tue 9/296:05 am -
2 stops37h 55m
Deal found 8/20![Multiple Airlines logo]()
$674
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Wed 9/239:00 pm -
1 stop17h 20m
Wed 9/309:05 am -
1 stop16h 10m
Deal found 8/20![Multiple Airlines logo]()
$663
This lol.travel deal was found by Cheapflights users on 8/19. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 pm -
1 stop15h 00m
Tue 10/139:15 pm -
1 stop24h 45m
Deal found 8/19![TAP AIR PORTUGAL logo]()
$628
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 August 21, 2026.
Search for one-way flight options from Chicago to Portugal. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Wed 12/96:15 am -
3 stops44h 10m
Deal found 8/19![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/2811:15 am -
2 stops25h 30m
Deal found 8/18![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/209:00 am -
2 stops32h 00m
Deal found 8/20![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Mon 9/2811:15 am -
2 stops27h 55m
Deal found 8/19![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/1110:25 pm -
2 stops42h 35m
Deal found 8/20![Multiple Airlines logo]()
$325
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:25 pm -
2 stops18h 50m
Deal found 8/18![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 10/187:25 pm -
2 stops19h 40m
Deal found 8/16![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Mon 10/198:11 pm -
2 stops41h 19m
Deal found 8/19![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Mon 9/283:20 pm -
2 stops21h 35m
Deal found 8/19![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/910:25 pm -
3 stops41h 30m
Deal found 8/18![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/1610:25 pm -
2 stops43h 05m
Deal found 8/20![Multiple Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 10/277:30 pm -
3 stops21h 00m
Deal found 8/16![Multiple Airlines logo]()
$345
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 August 21, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $567 (Kiwi.com) |
One-way from | $313 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $962 |
Good round-trip deal | $642 or less |
Good one-way deal | $459 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 7,457,451 searches. Data last updated August 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 Chicago O'Hare Intl - FNC Funchal Madeira
ORDFNC
Chicago O'Hare Intl
Wed 12/2
7:00 pm-8:15 pm
1 stop19h 15m
Funchal Madeira
Tue 12/8
4:10 am-3:30 pm
1 stop17h 20m
$736
ChicagoFaro
ORD Chicago O'Hare Intl - FAO Faro
ORDFAO
Chicago O'Hare Intl
Tue 9/15
9:00 pm-11:30 pm
1 stop20h 30m
Faro
Tue 9/22
8:00 am-7:15 pm
1 stop17h 15m
$750
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Wed 9/23
8:10 pm-3:45 pm
1 stop37h 35m
Porto
Wed 10/7
10:45 am-9:40 am
1 stop28h 55m
$753
ChicagoLisbon
ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado
ORDLIS
Chicago O'Hare Intl
Mon 10/12
8:40 pm-11:05 am
1 stop32h 25m
Lisbon Humberto Delgado
Wed 10/21
5:05 am-2:55 pm
1 stop15h 50m
$758
ChicagoFunchal
ORD Chicago O'Hare Intl - FNC Funchal Madeira
ORDFNC
Chicago O'Hare Intl
Wed 10/21
5:29 pm-9:40 am
2 stops34h 11m
Funchal Madeira
Wed 10/28
10:25 am-3:25 pm
1 stop34h 00m
$766
ChicagoPonta Delgada
ORD Chicago O'Hare Intl - PDL Ponta Delgada Nordela
ORDPDL
Chicago O'Hare Intl
Wed 11/18
7:00 pm-6:35 pm
1 stop18h 35m
Ponta Delgada Nordela
Wed 11/25
6:30 am-3:30 pm
1 stop14h 00m
$769
ChicagoLisbon
MDW Chicago Midway - LIS Lisbon Humberto Delgado
MDWLIS
Chicago Midway
Tue 10/13
6:44 pm-6:45 pm
2 stops18h 01m
Lisbon Humberto Delgado
Thu 10/22
5:00 am-6:00 pm
2 stops19h 00m
$774
ChicagoLisbon
ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado
ORDLIS
Chicago O'Hare Intl
Thu 11/5
2:00 pm-10:20 am
2 stops14h 20m
Lisbon Humberto Delgado
Thu 11/12
5:00 am-3:20 pm
1 stop16h 20m
$778
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Wed 1/13
10:40 am-10:35 am
2 stops17h 55m
Porto
Wed 1/20
5:00 am-4:49 pm
2 stops17h 49m
$780
ChicagoLisbon
ORD Chicago O'Hare Intl - LIS Lisbon Humberto Delgado
ORDLIS
Chicago O'Hare Intl
Mon 9/21
10:30 am-8:50 am
2 stops16h 20m
Lisbon Humberto Delgado
Tue 10/6
5:00 am-2:15 pm
1 stop15h 15m
$790
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-FAO
ORD-LIS
MDW-LIS
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-FAO
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 $590). Flying from Chicago to Portugal in June is currently the most expensive (average of $1,159). 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 August 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 33% 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 at night 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 33% 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 14 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 August 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.
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Comfort
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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 August 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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$334 | Average$583 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$369 | Average$587 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$373 | Average$470 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$451 | Average$826 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$470 | Average$625 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$474 | Average$762 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$485 | Average$739 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$489 | Average$1,106 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$489 | Average$719 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$492 | Average$693 | FlexibilityNo cancel fee | On-time75% |