$218+ Cheap flights from O'Hare Intl (ORD) to Porto (OPO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OPO
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl to Porto 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 O'Hare Intl to Porto
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Cheapest flights from O'Hare Intl to PortoExplore the most affordable flight options available from O'Hare Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from O'Hare Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Booking.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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.
Wed 12/27:00 pm -
1 stop17h 00m
Tue 12/86:00 pm -
1 stop27h 30m
Deal found 10/28![TAP AIR PORTUGAL logo]()
$550
This Booking.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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.
Sun 11/18:10 pm -
1 stop15h 50m
Tue 11/178:00 pm -
1 stop25h 30m
Deal found 10/30![TAP AIR PORTUGAL logo]()
$551
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/257:00 pm -
1 stop23h 30m
Sun 12/65:00 am -
1 stop16h 30m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$562
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Fri 11/278:10 pm -
1 stop32h 50m
Sun 12/67:00 am -
1 stop14h 30m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:10 pm -
1 stop11h 20m
Fri 12/41:25 pm -
2 stops56h 05m
Deal found 10/26![Multiple Airlines logo]()
$608
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/257:00 pm -
1 stop12h 30m
Mon 11/3010:05 pm -
2 stops47h 25m
Deal found 10/26![Multiple Airlines logo]()
$627
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/117:00 pm -
1 stop12h 30m
Tue 11/176:30 am -
2 stops39h 00m
Deal found 10/27![Multiple Airlines logo]()
$634
This Booking.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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.
Fri 10/309:10 pm -
1 stop16h 50m
Fri 11/65:00 am -
1 stop16h 30m
Deal found 10/29![TAP AIR PORTUGAL logo]()
$648
Best flights from O'Hare Intl to PortoDiscover carefully curated flight deals from O'Hare Intl to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from O'Hare Intl to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Wed 12/912:25 pm -
2 stops15h 05m
Wed 12/166:00 am -
1 stop13h 10m
Deal found 10/25![United Airlines logo]()
$753
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 3/151:30 pm -
2 stops16h 05m
Mon 3/225:00 am -
2 stops22h 04m
Deal found 10/28![Delta logo]()
$798
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/208:00 pm -
1 stop32h 30m
Sun 3/286:00 am -
2 stops23h 15m
Deal found 10/26![United Airlines logo]()
$794
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 3/1110:40 am -
2 stops17h 55m
Thu 3/185:00 am -
2 stops20h 37m
Deal found 10/25![Delta logo]()
$798
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/208:17 pm -
1 stop31h 13m
Sat 2/276:00 am -
1 stop15h 20m
Deal found 10/27![United Airlines logo]()
$794
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 1/1510:40 am -
2 stops17h 55m
Tue 1/195:55 am -
1 stop16h 20m
Deal found 10/28![Delta logo]()
$822
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/208:00 pm -
1 stop32h 30m
Sat 3/2712:30 pm -
1 stop27h 30m
Deal found 10/26![United Airlines logo]()
$821
Last-minute flights from O'Hare Intl to PortoDiscover last-minute flight deals from O'Hare Intl to Porto. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Porto. Data last updated October 30, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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.
Fri 10/309:10 pm -
1 stop16h 50m
Fri 11/65:00 am -
1 stop16h 30m
Deal found 10/29![TAP AIR PORTUGAL logo]()
$648
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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.
Fri 10/309:10 pm -
1 stop16h 50m
Thu 11/128:00 pm -
1 stop25h 30m
Deal found 10/29![TAP AIR PORTUGAL logo]()
$652
This Booking.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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.
Sun 11/18:10 pm -
1 stop15h 50m
Tue 11/178:00 pm -
1 stop25h 30m
Deal found 10/30![TAP AIR PORTUGAL logo]()
$551
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Wed 11/117:00 pm -
1 stop16h 00m
Tue 11/178:00 pm -
1 stop25h 30m
Deal found 10/27![TAP AIR PORTUGAL logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/117:00 pm -
1 stop12h 30m
Tue 11/176:30 am -
2 stops39h 00m
Deal found 10/27![Multiple Airlines logo]()
$634
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/257:00 pm -
1 stop23h 30m
Sun 12/65:00 am -
1 stop16h 30m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$562
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/257:00 pm -
1 stop12h 30m
Mon 11/3010:05 pm -
2 stops47h 25m
Deal found 10/26![Multiple Airlines logo]()
$627
This FlightHub deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Fri 11/278:10 pm -
1 stop32h 50m
Sun 12/67:00 am -
1 stop14h 30m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:10 pm -
1 stop11h 20m
Fri 12/41:25 pm -
2 stops56h 05m
Deal found 10/26![Multiple Airlines logo]()
$608
One-way flights from O'Hare Intl to PortoSearch for one-way flight options from O'Hare Intl to Porto. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from O'Hare Intl to Porto. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:10 pm -
1 stop12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$218
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 pm -
1 stop14h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![TAP AIR PORTUGAL logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:10 pm -
1 stop11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![TAP AIR PORTUGAL logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:10 pm -
2 stops19h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/298:10 pm -
2 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/117:00 pm -
2 stops21h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:10 pm -
3 stops21h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 2/286:30 pm -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:10 pm -
2 stops20h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 2/236:30 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$316
Find flight deals from O'Hare Intl to Porto
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $550 (Booking.com) |
One-way from | $218 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,061 |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Porto 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 October 30, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Fri 11/27
8:10 pm-3:00 pm
1 stop12h 50m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$218
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Sun 11/29
8:10 pm-11:45 pm
2 stops21h 35m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$272
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Sun 11/8
8:10 pm-11:05 pm
2 stops20h 55m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$314
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Mon 3/1
7:10 am-9:30 am
1 stop20h 20m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$345
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Mon 2/22
7:00 am-9:30 am
2 stops20h 30m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$345
Quickest round-trip
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Wed 3/24
5:25 pm-10:30 am
1 stop12h 05m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$349
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Wed 3/24
1:30 pm-11:45 am
2 stops17h 15m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$364
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Thu 2/25
5:55 am-9:30 am
2 stops21h 35m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$395
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Sat 4/3
5:45 pm-11:00 am
3 stops35h 15m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$420
ChicagoPorto
ORD Chicago O'Hare Intl - OPO Porto
ORDOPO
Chicago O'Hare Intl
Sat 4/3
9:30 pm-9:45 am
1 stop30h 15m
Porto
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$449
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl to Porto
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Porto in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Porto flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Chicago O'Hare Intl Airport-Porto flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Porto flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from O'Hare Intl to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from O'Hare Intl with our price prediction graph.
ORD-OPO
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 Porto
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Porto?
The best time to book flights from Chicago O'Hare Intl Airport to Porto is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Porto?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Porto (average of $564). Flying from Chicago O'Hare Intl Airport to Porto in June is currently the most expensive (average of $1,291). 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.
How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Porto?
Airfare is below average for this route at the moment.
Chicago O'Hare Intl Airport to Porto flights typically cost between $623 and $911 in December.The cheapest round-trip price found within the last 5 days was $550 on TAP AIR PORTUGAL (Dec 2-Dec 8).
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated October 30, 2026.
Peruse reviews from past customers who have flown with United Airlines,TAP AIR PORTUGAL, andAmerican Airlines from Chicago O'Hare Intl Airport to Porto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Overall
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 O'Hare Intl to Porto. 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 Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
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Alternative routes for O'Hare Intl to Porto
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O'Hare Intl and Porto flights
Browse other O'Hare Intl and Porto flight options. Last updated on October 30, 2026.
Other flights from O'Hare Intl
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
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Other flights to Porto
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Top 6 airlines flying from O'Hare Intl to Porto
Discover the top 6 airlines that operate flights from O'Hare Intl to Porto. 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$480 | Average$856 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$519 | Average$747 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$524 | Average$990 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$545 | Average$755 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$623 | Average$982 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$630 | Average$734 | FlexibilityNo cancel fee | On-time77% |