$265+ Cheap flights from Chicago (CHI) to Portugal
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Chicago to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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 Chicago to Portugal
Keep the following information in mind while searching for Chicago to Portugal flight deals. Data was last updated February 23, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $515 (Mytrip) |
One-way from | $265 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $570 |
Good round-trip deal | $613 or less |
Good one-way deal | $429 or less |
Find flight deals from Chicago to Portugal
Cheapest flights from Chicago to PortugalExplore the most affordable flight options available from Chicago to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.
Explore the most affordable flight options available from Chicago to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.
This Mytrip deal was found by Cheapflights users on 2/22. 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.
This KLM deal was found by Cheapflights users on 2/23. 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.
This United Airlines deal was found by Cheapflights users on 2/22. 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 CheapOair deal was found by Cheapflights users on 2/22. 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 Mytrip deal was found by Cheapflights users on 2/22. 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.
This Air Canada deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 2/22. 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 Delta deal was found by Cheapflights users on 2/22. 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 Kiwi.com deal was found by Cheapflights users on 2/22. 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.
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KLM deal was found by Cheapflights users on 2/22. 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.
This Booking.com deal was found by Cheapflights users on 2/22. 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.
Find flights from Chicago to Portugal within your budget
Customize your flight search to find flights from Chicago to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2025.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Wed 3/26
11:35 am-3:15 pm
2 stops22h 40m
Porto
Tue 4/1
8:40 am-12:10 pm
1 stop33h 30m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Tue 4/1
5:10 pm-3:30 pm
1 stop16h 20m
Porto
Tue 4/8
11:25 am-2:40 pm
1 stop33h 15m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 4/1
12:00 pm-10:30 am
2 stops16h 30m
Lisbon Humberto Delgado
Tue 4/8
11:25 am-11:46 am
2 stops30h 21m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Wed 3/26
8:15 pm-8:55 am
Nonstop7h 40m
Lisbon Humberto Delgado
Fri 4/4
12:45 pm-4:10 pm
Nonstop9h 25m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Mon 3/10
2:05 pm-3:05 pm
2 stops20h 00m
Lisbon Humberto Delgado
Mon 3/17
3:25 pm-5:15 pm
1 stop30h 50m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 4/1
3:35 pm-9:20 am
1 stop11h 45m
Lisbon Humberto Delgado
Wed 4/9
11:25 am-8:00 pm
1 stop14h 35m
ChicagoPorto
ORD - OPO
ORDOPO
Chicago O'Hare Intl
Mon 3/24
7:15 am-10:30 am
2 stops22h 15m
Porto
Thu 4/3
11:25 am-2:10 pm
1 stop32h 45m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 4/1
7:00 am-10:45 am
1 stop21h 45m
Lisbon Humberto Delgado
Tue 4/8
10:00 am-5:32 pm
1 stop13h 32m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 3/4
7:10 am-9:00 am
1 stop19h 50m
Lisbon Humberto Delgado
Tue 3/18
11:25 am-3:30 pm
1 stop33h 05m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Mon 3/10
8:05 pm-11:25 am
1 stop34h 20m
Lisbon Humberto Delgado
Mon 3/17
3:25 pm-5:15 pm
1 stop30h 50m
Best time to book a flight from Chicago to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Chicago with our price prediction graph.
Travel insights for flights from Chicago to Portugal
Get recent, data-driven insights about flights from Chicago to Portugal including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Chicago to Portugal?
Currently, January is the cheapest month in which you can book a flight from Chicago to Portugal (average of $612). Flying from Chicago to Portugal in June is currently the most expensive (average of $1,234). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to PT?
Find hourly flight availability from Chicago to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 23, 2025.
It’s typically best to fly out from Chicago to Portugal at noon. Doing so could potentially save you 34% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Chicago to Portugal?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Portugal. Price data was last updated on April 28, 2024.
Travelers seeking maximum savings on their Chicago to Portugal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Portugal by month
Plan your trip to Portugal by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.
Temperature in Portugal by month
Plan your trip to Portugal by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).
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 February 23, 2025.
Read reviews from past customers who have flown Delta, Porter Airlines and KLM from Chicago to Portugal. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Food
Boarding
Crew
Comfort
Entertainment
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Chicago to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Chicago to Portugal
Discover the top 10 airlines that operate flights from Chicago to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$415 | Average$879 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$445 | Average$509 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$463 | Average$748 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$468 | Average$776 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$473 | Average$788 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$490 | Average$702 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$516 | Average$814 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$519 | Average$782 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$527 | Average$758 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$529 | Average$1,032 | FlexibilityNo cancel fee | On-time69% |