$226+ Cheap flights from O'Hare Intl (ORD) 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
Dec 17 — Dec 241
1 adult, Economy
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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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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 O'Hare Intl to Portugal
Keep the following information in mind while searching for O'Hare Intl to Portugal flight deals. Data was last updated November 17, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $427 (oojo) |
One-way from | $226 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $662 |
Good round-trip deal | $408 or less |
Good one-way deal | $321 or less |
Find flight deals from O'Hare Intl to Portugal
Cheapest flights from O'Hare Intl to PortugalExplore the most affordable flight options available from O'Hare Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 17, 2025.
Explore the most affordable flight options available from O'Hare Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 17, 2025.
This oojo deal was found by Cheapflights users on 11/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:15 pmORD - OPO
1 stop15h 45mTAP AIR PORTUGAL
Fri 12/129:00 amOPO - ORD
1 stop12h 25mTAP AIR PORTUGAL
Deal found 11/14![TAP AIR PORTUGAL logo]()
$427
This oojo deal was found by Cheapflights users on 11/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:10 pmORD - OPO
1 stop17h 50mTAP AIR PORTUGAL
Sun 12/148:55 amOPO - ORD
1 stop11h 50mTAP AIR PORTUGAL
Deal found 11/16![TAP AIR PORTUGAL logo]()
$428
This FlightHub deal was found by Cheapflights users on 11/17. 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 12/37:10 pmORD - OPO
1 stop30h 35mTAP AIR PORTUGAL
Sun 12/78:55 amOPO - ORD
1 stop11h 50mTAP AIR PORTUGAL
Deal found 11/17![TAP AIR PORTUGAL logo]()
$444
This Mytrip deal was found by Cheapflights users on 11/17. 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.
Wed 12/312:50 pmORD - OPO
2 stops18h 25mMultiple Airlines
Mon 12/87:20 pmOPO - ORD
1 stop27h 00mMultiple Airlines
Deal found 11/17![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:50 pmORD - LIS
1 stop19h 40mLufthansa
Sun 12/712:15 pmLIS - ORD
1 stop13h 50mLufthansa
Deal found 11/15![Lufthansa logo]()
$488
This Gotogate deal was found by Cheapflights users on 11/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:55 pmORD - OPO
2 stops14h 55mMultiple Airlines
Tue 12/166:00 amOPO - ORD
2 stops18h 25mMultiple Airlines
Deal found 11/15![Multiple Airlines logo]()
$488
This Air Canada deal was found by Cheapflights users on 11/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:08 pmORD - LIS
2 stops30h 12mAir Canada
Tue 12/1611:20 amLIS - ORD
2 stops33h 20mAir Canada
Deal found 11/16![Air Canada logo]()
$489
This Air Canada deal was found by Cheapflights users on 11/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:06 pmORD - LIS
1 stop13h 49mAir Canada
Fri 12/125:00 amLIS - ORD
2 stops17h 52mAir Canada
Deal found 11/15![Air Canada logo]()
$490
This Air Canada deal was found by Cheapflights users on 11/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:35 pmORD - LIS
1 stop11h 45mAir Canada
Thu 12/1810:55 amLIS - ORD
1 stop30h 23mAir Canada
Deal found 11/16![Air Canada logo]()
$491
This Air Canada deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:00 pmORD - LIS
1 stop12h 55mAir Canada
Tue 12/26:10 amLIS - ORD
2 stops17h 38mAir Canada
Deal found 11/17![Air Canada logo]()
$492
This American Airlines deal was found by Cheapflights users on 11/15. 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.
Fri 11/288:40 pmORD - LIS
1 stop12h 10mAmerican Airlines
Fri 12/511:05 amLIS - ORD
1 stop12h 34mAmerican Airlines
Deal found 11/15![American Airlines logo]()
$494
This KAYAK deal was found by Cheapflights users on 11/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/249:50 pmORD - LIS
1 stop19h 40mLufthansa
Tue 12/22:10 pmLIS - ORD
1 stop34h 15mLufthansa
Deal found 11/17![Lufthansa logo]()
$495
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 November 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portugal that are best for you.
Fly from
O'Hare Intl
Fly to
Portugal
Route
Depart
Return
Price
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 12/3
7:10 pm-7:45 am
1 stop30h 35m
Porto
Sun 12/7
8:55 am-2:45 pm
1 stop11h 50m
$444
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 12/3
12:50 pm-1:15 pm
2 stops18h 25m
Porto
Mon 12/8
7:20 pm-4:20 pm
1 stop27h 00m
$457
ChicagoFaro
ORD - FAO
ORDFAO
Chicago O'Hare Intl
Sun 1/11
7:10 pm-10:50 am
1 stop33h 40m
Faro
Sat 1/24
5:10 pm-4:55 pm
1 stop29h 45m
$474
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 1/18
8:25 pm-3:20 pm
1 stop12h 55m
Porto
Fri 1/30
9:00 am-3:25 pm
1 stop12h 25m
$475
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 1/12
5:20 pm-10:30 am
1 stop11h 10m
Porto
Wed 1/28
6:00 am-2:20 pm
1 stop14h 20m
$478
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 1/18
1:54 pm-10:30 am
2 stops14h 36m
Porto
Fri 1/30
6:30 am-2:20 pm
1 stop13h 50m
$482
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 1/18
12:50 pm-12:50 pm
2 stops18h 00m
Porto
Fri 1/30
8:40 am-8:10 pm
2 stops17h 30m
$484
ChicagoFunchal
ORD - FNC
ORDFNC
Chicago O'Hare Intl
Mon 2/16
4:25 pm-9:35 am
1 stop35h 10m
Funchal Madeira
Thu 2/26
10:20 am-2:20 pm
1 stop34h 00m
$492
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 12/7
1:36 pm-8:10 am
1 stop12h 34m
Lisbon Humberto Delgado
Thu 12/18
10:55 am-8:10 pm
1 stop15h 15m
$496
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Tue 12/2
5:20 pm-10:30 am
1 stop11h 10m
Porto
Tue 12/16
11:25 am-3:10 pm
1 stop33h 45m
$496
Showing 1-10 of 60 results
Best time to book a flight from O'Hare Intl to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from O'Hare Intl with our price prediction graph.
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 O'Hare Intl Airport to Portugal
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Portugal?
Currently, December is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $411). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $695). 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 ORD to PT?
Find hourly flight availability from O'Hare Intl 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 November 17, 2025.
When flying from Chicago O'Hare Intl Airport to Portugal, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 9% versus a flight at noon.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to Portugal?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Portugal. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Portugal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 November 17, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from Chicago O'Hare Intl Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Overall
7.4
Boarding
7.7
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from O'Hare Intl to Portugal
Discover the top 10 airlines that operate flights from O'Hare Intl 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 November 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$472 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$425 | Average$564 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$441 | Average$708 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$468 | Average$825 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$470 | Average$648 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$487 | Average$756 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$496 | Average$721 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$497 | Average$895 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$504 | Average$755 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$510 | Average$739 | FlexibilityNo cancel fee | On-time71% |