$261+ Cheap flights from Chicago (CHI) to Porto (OPO)
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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Chicago 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.The best prices from Chicago to Porto are usually found in January or February, booked 43 days in advance, depart on a Monday or Sunday and return on a Wednesday
Cheap flight deals from Chicago to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 December 5, 2024.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Popular in | July |
Cheapest in | January |
Round-trip from | $436 (Flightnetwork) |
One-way from | $261 (Kiwi.com) |
Find flight deals from Chicago to Porto
Cheapest flights from Chicago to PortoExplore the most affordable flight options available from Chicago to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2024.
Explore the most affordable flight options available from Chicago to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2024.
This FlightHub deal was found by Cheapflights users on 12/4. 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.
This FlightHub deal was found by Cheapflights users on 12/5. 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.
This CheapOair deal was found by Cheapflights users on 12/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 12/5. 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.
This Delta deal was found by Cheapflights users on 12/4. 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.
This United Airlines deal was found by Cheapflights users on 12/4. 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.
This Gurufare deal was found by Cheapflights users on 12/5. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 12/4. 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.
Find flights from Chicago to Porto within your budget
Customize your flight search to find flights from Chicago 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 2,924,186 searches. Data last updated December 5, 2024.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 2/9
8:25 pm-5:00 pm
1 stop14h 35m
Porto
Sun 2/16
6:55 am-3:30 pm
1 stop14h 35m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 2/16
7:05 pm-6:40 pm
1 stop17h 35m
Porto
Mon 2/24
7:30 pm-4:15 pm
1 stop26h 45m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 1/15
7:20 am-11:15 am
2 stops21h 55m
Porto
Wed 1/22
12:05 pm-4:15 pm
1 stop34h 10m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 2/17
11:35 am-11:15 am
2 stops17h 40m
Porto
Wed 2/26
6:00 am-7:37 pm
2 stops19h 37m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Tue 2/18
12:25 pm-7:40 am
2 stops13h 15m
Porto
Wed 2/26
8:20 am-2:30 pm
1 stop12h 10m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 1/20
11:35 am-3:25 pm
2 stops21h 50m
Porto
Mon 1/27
6:00 am-2:45 pm
2 stops38h 45m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 2/19
10:30 am-10:50 am
2 stops18h 20m
Porto
Mon 2/24
11:45 am-3:05 pm
1 stop33h 20m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Sun 1/12
5:20 pm-10:55 am
1 stop11h 35m
Porto
Sun 1/19
10:55 am-2:30 pm
1 stop33h 35m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 4/28
7:15 pm-11:15 am
1 stop34h 00m
Porto
Wed 5/7
12:05 pm-4:10 pm
1 stop34h 05m
ChicagoPorto
MDW - OPO
MDWOPO
Chicago Midway
Sun 1/19
9:34 am-10:55 am
2 stops19h 21m
Porto
Sun 1/26
5:00 am-6:14 pm
2 stops19h 14m
Compare providers for flights from Chicago 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 Chicago to Porto in December.
| 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 Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Chicago-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Porto flights, Cheapflights users trust FlightHub the most. FlightHub 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-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 Chicago to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Chicago with our price prediction graph.
Travel insights for flights from Chicago to Porto
Get recent, data-driven insights about flights from Chicago to Porto including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Chicago to Porto?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Porto. Price data was last updated on November 22, 2024.
The price you pay for your flight from Chicago to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 43 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chicago to Porto?
Currently, January is the cheapest month in which you can book a flight from Chicago to Porto (average of $523). Flying from Chicago to Porto in June is currently the most expensive (average of $1,000). 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 OPO?
Find hourly flight availability from Chicago to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 5, 2024.
A simple way to save on the total cost of your ticket is to fly from Chicago to Porto in the evening. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight at noon.
What is the cheapest day to fly from Chicago to Porto?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Porto. Price data was last updated on December 1, 2024.
Travelers seeking maximum savings on their Chicago to Porto flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Porto by month
Plan your trip to Porto by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.
Temperature in Porto by month
Plan your trip to Porto by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
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 December 5, 2024.
Read through reviews of airlines operating flights from Chicago to Porto, such as KLM and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Entertainment
Comfort
Food
Crew
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.