$350+ Cheap flights from Portugal to Chicago (CHI)
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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — CHI
Sep 18 — Sep 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portugal to Chicago 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portugal to Chicago
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portugal to ChicagoExplore the most affordable flight options available from Portugal to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
Explore the most affordable flight options available from Portugal to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:55 pm -
1 stop29h 50m
Wed 11/187:15 pm -
1 stop14h 50m
Deal found 8/18![Scandinavian Airlines logo]()
$538
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.
Thu 10/294:55 pm -
1 stop29h 50m
Mon 11/97:15 pm -
1 stop14h 50m
Deal found 8/18![Scandinavian Airlines logo]()
$558
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:15 pm -
1 stop25h 55m
Thu 11/127:15 pm -
1 stop14h 50m
Deal found 8/19![Scandinavian Airlines logo]()
$571
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:55 pm -
1 stop29h 50m
Fri 11/277:15 pm -
1 stop14h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$605
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:55 pm -
1 stop23h 15m
Thu 11/127:15 pm -
1 stop14h 50m
Deal found 8/19![Scandinavian Airlines logo]()
$606
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:10 am -
2 stops35h 30m
Wed 10/76:00 pm -
2 stops23h 50m
Deal found 8/16![Multiple Airlines logo]()
$608
This Rumbo 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:15 pm -
1 stop25h 55m
Tue 9/157:15 pm -
1 stop18h 10m
Deal found 8/17![Scandinavian Airlines logo]()
$608
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:15 pm -
1 stop25h 55m
Fri 10/167:15 pm -
1 stop20h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$615
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:15 pm -
1 stop25h 55m
Fri 10/167:15 pm -
1 stop20h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$638
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:20 am -
1 stop16h 55m
Sun 10/117:05 pm -
1 stop16h 40m
Deal found 8/19![British Airways logo]()
$642
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:15 pm -
1 stop25h 55m
Wed 11/117:15 pm -
1 stop14h 50m
Deal found 8/19![Scandinavian Airlines logo]()
$643
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.
Sun 11/224:55 pm -
1 stop29h 50m
Sun 12/610:35 am -
2 stops23h 30m
Deal found 8/18![Scandinavian Airlines logo]()
$654
Best flights from Portugal to ChicagoDiscover carefully curated flight deals from Portugal to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Portugal to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:55 pm -
1 stop23h 15m
Tue 11/107:15 pm -
1 stop14h 50m
Deal found 8/19![Scandinavian Airlines logo]()
$606
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.
Thu 9/1711:35 am -
1 stop29h 25m
Wed 9/3011:45 am -
2 stops24h 05m
Deal found 8/16![Multiple Airlines logo]()
$875
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.
Thu 9/175:00 am -
1 stop15h 15m
Wed 9/303:05 pm -
2 stops18h 20m
Deal found 8/16![Delta logo]()
$885
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:25 pm -
2 stops17h 11m
Wed 9/307:05 pm -
1 stop18h 00m
Deal found 8/19![British Airways logo]()
$888
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:45 pm -
1 stop22h 30m
Mon 9/75:20 pm -
2 stops18h 05m
Deal found 8/18![KLM logo]()
$891
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.
Fri 9/46:00 am -
1 stop19h 55m
Fri 10/168:45 am -
1 stop16h 25m
Deal found 8/17![United Airlines logo]()
$914
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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.
Thu 11/122:20 pm -
1 stop29h 25m
Sun 11/151:38 pm -
2 stops15h 07m
Deal found 8/15![American Airlines logo]()
$924
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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.
Thu 11/124:30 pm -
1 stop29h 00m
Sun 11/158:10 pm -
1 stop13h 30m
Deal found 8/14![TAP AIR PORTUGAL logo]()
$938
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.
Wed 11/114:55 pm -
2 stops35h 41m
Wed 11/186:05 am -
2 stops28h 00m
Deal found 8/18![Scandinavian Airlines logo]()
$756
This Scandinavian Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 10/1010:55 pm -
1 stop23h 15m
Fri 10/167:15 pm -
1 stop20h 50m
Deal found 8/14![Scandinavian Airlines logo]()
$767
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:00 am -
1 stop15h 15m
Sun 10/43:05 pm -
2 stops18h 25m
Deal found 8/18![Delta logo]()
$886
This KLM deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/911:45 am -
2 stops16h 47m
Fri 10/26:00 pm -
2 stops15h 25m
Deal found 8/15![Multiple Airlines logo]()
$896
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.
Thu 11/122:20 pm -
1 stop29h 25m
Sun 11/1510:10 am -
2 stops18h 35m
Deal found 8/16![British Airways logo]()
$898
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
1 stop13h 10m
Sat 1/93:15 pm -
1 stop14h 30m
Deal found 8/18![United Airlines logo]()
$919
This Scandinavian Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 10/218:15 pm -
1 stop25h 55m
Sun 10/258:15 pm -
2 stops20h 45m
Deal found 8/14![Scandinavian Airlines logo]()
$785
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:00 am -
1 stop15h 15m
Wed 9/303:05 pm -
2 stops17h 50m
Deal found 8/15![Delta logo]()
$892
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:15 am -
3 stops32h 45m
Wed 10/73:45 pm -
3 stops26h 05m
Deal found 8/16![Multiple Airlines logo]()
$896
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.
Wed 9/308:00 pm -
2 stops26h 10m
Wed 10/77:05 pm -
1 stop13h 20m
Deal found 8/16![British Airways logo]()
$905
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:10 pm -
1 stop13h 45m
Wed 9/304:05 pm -
1 stop17h 35m
Deal found 8/19![United Airlines logo]()
$919
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:55 pm -
1 stop29h 50m
Fri 11/277:15 pm -
2 stops20h 45m
Deal found 8/16![Scandinavian Airlines logo]()
$786
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/185:00 am -
1 stop15h 15m
Fri 9/255:10 pm -
1 stop12h 05m
Deal found 8/15![Delta logo]()
$892
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 9/311:40 am -
2 stops18h 00m
Thu 9/109:39 pm -
2 stops30h 11m
Deal found 8/17![United Airlines logo]()
$937
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:55 pm -
2 stops32h 59m
Tue 10/137:10 pm -
2 stops33h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$791
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.
Sat 8/295:00 am -
1 stop15h 15m
Fri 9/116:00 pm -
2 stops17h 50m
Deal found 8/19![Delta logo]()
$893
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:40 am -
1 stop15h 20m
Mon 9/712:16 pm -
1 stop14h 54m
Deal found 8/18![United Airlines logo]()
$938
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.
Sat 9/195:00 am -
1 stop15h 15m
Sat 9/261:29 pm -
2 stops15h 46m
Deal found 8/19![Delta logo]()
$893
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:50 am -
1 stop34h 20m
Tue 10/137:15 pm -
1 stop33h 45m
Deal found 8/17![Scandinavian Airlines logo]()
$892
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.
Thu 9/35:00 am -
2 stops19h 29m
Mon 9/77:55 am -
2 stops18h 55m
Deal found 8/17![Delta logo]()
$898
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.
Wed 9/25:00 am -
2 stops17h 17m
Sun 9/610:30 am -
2 stops16h 20m
Deal found 8/17![Delta logo]()
$898
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.
Thu 9/2410:35 am -
1 stop35h 35m
Sun 9/277:35 am -
2 stops21h 35m
Deal found 8/18![Scandinavian Airlines logo]()
$904
Last-minute flights from Portugal to ChicagoDiscover last-minute flight deals from Portugal to Chicago. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Portugal to Chicago. Data last updated August 19, 2026 and is based on user searches.
This Rumbo 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:15 pm -
1 stop25h 55m
Tue 9/157:15 pm -
1 stop18h 10m
Deal found 8/17![Scandinavian Airlines logo]()
$608
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:15 pm -
1 stop25h 55m
Fri 10/167:15 pm -
1 stop20h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$615
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:20 am -
1 stop16h 55m
Sun 10/117:05 pm -
1 stop16h 40m
Deal found 8/19![British Airways logo]()
$642
This Booking.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:15 pm -
1 stop27h 00m
Sat 9/193:45 pm -
1 stop12h 30m
Deal found 8/15![Aer Lingus logo]()
$675
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:15 pm -
1 stop21h 45m
Tue 9/229:00 pm -
1 stop18h 35m
Deal found 8/18![Aer Lingus logo]()
$662
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:15 pm -
1 stop25h 55m
Fri 10/167:15 pm -
1 stop20h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$638
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:20 am -
1 stop16h 55m
Sat 10/107:05 pm -
1 stop15h 15m
Deal found 8/19![British Airways logo]()
$689
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:50 am -
1 stop34h 20m
Thu 10/227:15 pm -
1 stop15h 50m
Deal found 8/17![Scandinavian Airlines logo]()
$691
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:20 am -
1 stop16h 55m
Sat 10/107:05 pm -
1 stop15h 15m
Deal found 8/19![British Airways logo]()
$695
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:15 pm -
1 stop27h 00m
Sat 9/263:45 pm -
1 stop12h 30m
Deal found 8/19![Aer Lingus logo]()
$674
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.
Tue 9/226:30 am -
1 stop13h 30m
Tue 9/299:00 pm -
1 stop17h 45m
Deal found 8/18![Multiple Airlines logo]()
$682
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:10 am -
2 stops35h 30m
Wed 10/76:00 pm -
2 stops23h 50m
Deal found 8/16![Multiple Airlines logo]()
$608
One-way flights from Portugal to ChicagoSearch for one-way flight options from Portugal to Chicago. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Portugal to Chicago. Find affordable one-way fares based on user searches. Data last updated August 19, 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.
Mon 10/127:20 am -
3 stops40h 30m
Deal found 8/19![Multiple Airlines logo]()
$350
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.
Sat 9/126:10 am -
2 stops34h 50m
Deal found 8/18![Multiple Airlines logo]()
$354
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.
Thu 9/176:10 am -
3 stops38h 25m
Deal found 8/18![Multiple Airlines logo]()
$377
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.
Mon 10/197:20 am -
3 stops40h 30m
Deal found 8/16![Multiple Airlines logo]()
$378
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:50 pm -
3 stops52h 00m
Deal found 8/17![Multiple Airlines logo]()
$378
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.
Sun 9/136:10 am -
2 stops34h 50m
Deal found 8/19![Multiple Airlines logo]()
$383
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:40 pm -
3 stops50h 10m
Deal found 8/17![Multiple Airlines logo]()
$384
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.
Wed 10/219:05 am -
3 stops38h 45m
Deal found 8/16![Multiple Airlines logo]()
$386
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/113:10 pm -
2 stops34h 05m
Deal found 8/17![Multiple Airlines logo]()
$391
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.
Sat 9/126:10 am -
3 stops59h 30m
Deal found 8/18![Multiple Airlines logo]()
$392
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:10 am -
2 stops19h 38m
Deal found 8/18![Multiple Airlines logo]()
$401
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Tue 9/156:15 am -
3 stops38h 20m
Deal found 8/17![Multiple Airlines logo]()
$401
Find flight deals from Portugal to Chicago
Keep the following information in mind while searching for Portugal to Chicago flight deals. Data was last updated August 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $538 (oojo) |
One-way from | $350 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $884 |
Good one-way deal | $629 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portugal to Chicago 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 19, 2026.
Use the filters below to find and compare flights from Portugal to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LisbonChicago
LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl
LISORD
Lisbon Humberto Delgado
Sat 10/10
10:55 pm-4:10 pm
1 stop23h 15m
Chicago O'Hare Intl
Tue 11/10
7:15 pm-4:05 pm
1 stop14h 50m
$606
LisbonChicago
LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl
LISORD
Lisbon Humberto Delgado
Wed 11/11
4:55 pm-10:36 pm
2 stops35h 41m
Chicago O'Hare Intl
Wed 11/18
6:05 am-4:05 pm
2 stops28h 00m
$756
LisbonChicago
LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl
LISORD
Lisbon Humberto Delgado
Sat 10/10
10:55 pm-4:10 pm
1 stop23h 15m
Chicago O'Hare Intl
Fri 10/16
7:15 pm-10:05 pm
1 stop20h 50m
$767
LisbonChicago
LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl
LISORD
Lisbon Humberto Delgado
Wed 10/21
8:15 pm-4:10 pm
1 stop25h 55m
Chicago O'Hare Intl
Sun 10/25
8:15 pm-10:00 pm
2 stops20h 45m
$785
LisbonChicago
LIS Lisbon Humberto Delgado - ORD Chicago O'Hare Intl
LISORD
Lisbon Humberto Delgado
Mon 11/23
4:55 pm-4:45 pm
1 stop29h 50m
Chicago O'Hare Intl
Fri 11/27
7:15 pm-10:00 pm
2 stops20h 45m
$786
PortoChicago
OPO Porto - ORD Chicago O'Hare Intl
OPOORD
Porto
Fri 9/4
5:55 pm-8:54 pm
2 stops32h 59m
Chicago O'Hare Intl
Tue 10/13
7:10 pm-11:00 am
2 stops33h 50m
$791
LisbonChicago
LIS Lisbon Humberto Delgado - MDW Chicago Midway
LISMDW
Lisbon Humberto Delgado
Thu 9/17
11:35 am-11:00 am
1 stop29h 25m
Chicago Midway
Wed 9/30
11:45 am-5:50 pm
2 stops24h 05m
$875
PortoChicago
OPO Porto - ORD Chicago O'Hare Intl
OPOORD
Porto
Thu 9/17
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Wed 9/30
3:05 pm-3:25 pm
2 stops18h 20m
$885
PortoChicago
OPO Porto - ORD Chicago O'Hare Intl
OPOORD
Porto
Thu 9/24
5:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Sun 10/4
3:05 pm-3:30 pm
2 stops18h 25m
$886
PortoChicago
OPO Porto - ORD Chicago O'Hare Intl
OPOORD
Porto
Thu 9/17
12:25 pm-11:36 pm
2 stops17h 11m
Chicago O'Hare Intl
Wed 9/30
7:05 pm-7:05 pm
1 stop18h 00m
$888
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portugal to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Portugal with our price prediction graph.
OPO-ORD
LIS-MDW
FAO-ORD
LIS-ORD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portugal to Chicago
PT0-CHI
OPO-ORD
LIS-MDW
FAO-ORD
LIS-ORD
What is the cheapest month to book a flight from Portugal to Chicago?
Currently, February is the cheapest month in which you can book a flight from Portugal to Chicago (average of $695). Flying from Portugal to Chicago in January is currently the most expensive (average of $1,085). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PT to CHI?
Find hourly flight availability from Portugal to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 19, 2026.
When flying from Portugal to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Portugal to Chicago delayed?
About 24% of weekly flights between Portugal and Chicago have experienced delays in the past year, with the average delay time being 134 minutes.
What is the most punctual flight time for Portugal to Chicago flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Portugal to Chicago flights?
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 24% of flights being delayed.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated August 19, 2026.
Read reviews from past customers who have flown TAP AIR PORTUGAL from Portugal to Chicago. 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
6.3
Boarding
7.0
Overall
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
LIS - ORD
Food
6.3
Boarding
7.0
Overall
7.2
Comfort
7.1
Crew
7.8
Entertainment
6.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
LIS - ORD
Related info for your journey
Find useful and relevant information for your journey from Portugal to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Chicago flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Portugal to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Chicago
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
Complete your trip
Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portugal to Chicago by cabin class
Find flights from Portugal to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portugal and Chicago flights
Browse other Portugal and Chicago flight options. Last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Portugal to Chicago
Discover the top airline that operate flights from Portugal to Chicago. 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$697 | Average$1,082 | FlexibilityNo cancel fee | On-timeN/A |