HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portimão

$425+ Cheap flights from Chicago (CHI) to Portimão, 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — FAO
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Portimão 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 Portimão

Keep the following information in mind while searching for Chicago to Portimão flight deals. Data was last updated mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$618
(Scandinavian Airlines)

One-way from

$425
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$1,051
Provider with most accurate pricing for Chicago (CHI)-Faro flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Faro flights.
Search Deals
From Chicago (CHI) to Portimão
Search Deals
One-way flight from Chicago (CHI) to Portimão
Search Deals
High demand for flights, 9% potential price rise
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Chicago to Portimão

Cheapest flights from Chicago to Portimão
Explore the most affordable flight options available from Chicago to Portimão. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 4/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/67:15 pmORD - FAO
1 stop31h 35mScandinavian Airlines
mié. 10/159:40 amFAO - ORD
1 stop36h 30mScandinavian Airlines
Deal found 4/30$618
This United deal was found by Cheapflights users on 4/30. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/169:31 pmORD - FAO
2 stops29h 54mMultiple Airlines
mar. 9/304:45 pmFAO - ORD
1 stop25h 25mMultiple Airlines
Deal found 4/30$641
This TAP AIR PORTUGAL deal was found by Cheapflights users on 4/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/186:00 pmORD - FAO
1 stop10h 25mTAP AIR PORTUGAL
lun. 9/226:05 amFAO - ORD
1 stop16h 35mTAP AIR PORTUGAL
Deal found 4/30$662
This KLM deal was found by Cheapflights users on 5/1. 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.
dom. 7/274:20 pmORD - FAO
1 stop15h 20mKLM
lun. 8/48:10 pmFAO - ORD
1 stop24h 00mKLM
Deal found 5/1$748
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/184:00 pmORD - FAO
2 stops17h 05mLufthansa
lun. 9/223:55 pmFAO - ORD
2 stops27h 00mLufthansa
Deal found 4/30$784
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/1012:08 pmORD - FAO
2 stops16h 32mAmerican Airlines
sáb. 5/178:00 pmFAO - ORD
1 stop23h 50mAmerican Airlines
Deal found 4/30$827
This British Airways deal was found by Cheapflights users on 4/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/1410:39 amORD - FAO
2 stops17h 41mBritish Airways
sáb. 9/206:45 pmFAO - ORD
1 stop25h 05mBritish Airways
Deal found 4/30$869
This United Airlines deal was found by Cheapflights users on 5/1. 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.
dom. 7/273:40 pmORD - FAO
1 stop12h 15mUnited Airlines
lun. 8/411:40 amFAO - ORD
2 stops14h 36mUnited Airlines
Deal found 5/1$874
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/103:45 pmORD - FAO
1 stop12h 55mAer Lingus
sáb. 5/1710:45 pmFAO - ORD
1 stop21h 15mAer Lingus
Deal found 4/30$935
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/102:00 pmORD - FAO
2 stops17h 10mAir Canada
sáb. 5/171:45 pmFAO - ORD
2 stops31h 20mAir Canada
Deal found 4/30$953
This Justfly.com deal was found by Cheapflights users on 4/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/279:25 pmORD - FAO
2 stops31h 55mBrussels Airlines
lun. 8/412:10 pmFAO - ORD
2 stops29h 15mBrussels Airlines
Deal found 4/30$1,016
This SWISS deal was found by Cheapflights users on 4/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/297:05 pmORD - FAO
1 stop16h 30mSWISS
sáb. 6/77:10 pmFAO - ORD
1 stop23h 00mSWISS
Deal found 4/30$1,022

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Portimão 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 mayo 1, 2025.
Use the filters below to find and compare flights from Chicago to Portimão that are best for you.

Fly from

Chicago

Fly to

Portimão

Route

Depart

Return

Price

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

lun. 10/6

7:15 pm-8:50 am

1 stop31h 35m

Faro

mié. 10/15

9:40 am-4:10 pm

1 stop36h 30m

$618

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

mar. 9/16

9:31 pm-9:25 am

2 stops29h 54m

Faro

mar. 9/30

4:45 pm-12:10 pm

1 stop25h 25m

$641

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

jue. 9/18

6:00 pm-10:25 am

1 stop10h 25m

Faro

lun. 9/22

6:05 am-4:40 pm

1 stop16h 35m

$662

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

dom. 7/27

4:20 pm-1:40 pm

1 stop15h 20m

Faro

lun. 8/4

8:10 pm-2:10 pm

1 stop24h 00m

$748

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

jue. 9/18

4:00 pm-3:05 pm

2 stops17h 05m

Faro

lun. 9/22

3:55 pm-12:55 pm

2 stops27h 00m

$784

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

dom. 9/14

10:39 am-10:20 am

2 stops17h 41m

Faro

sáb. 9/20

6:45 pm-1:50 pm

1 stop25h 05m

$869

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

dom. 7/27

3:40 pm-9:55 am

1 stop12h 15m

Faro

lun. 8/4

11:40 am-8:16 pm

2 stops14h 36m

$874

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

dom. 9/14

8:40 pm-7:00 pm

2 stops16h 20m

Faro

sáb. 9/20

10:45 pm-2:50 pm

2 stops22h 05m

$942

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

dom. 7/27

9:25 pm-11:20 am

2 stops31h 55m

Faro

lun. 8/4

12:10 pm-11:25 am

2 stops29h 15m

$1,016

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

jue. 5/29

7:05 pm-5:35 pm

1 stop16h 30m

Faro

sáb. 6/7

7:10 pm-12:10 pm

1 stop23h 00m

$1,022

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Chicago to Portimão

Have a flexible travel schedule? Discover the best time to fly to Portimão from Chicago 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 to Portimão

What is the cheapest month to book a flight from Chicago to Portimão?

Currently, November is the cheapest month in which you can book a flight from Chicago to Portimão (average of $628). Flying from Chicago to Portimão in June is currently the most expensive (average of $1,324). 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 P0T?

Find hourly flight availability from Chicago to Portimão. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

When flying from Chicago to Portimão, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Portimão by month

Plan your trip to Portimão by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portimão ranges from 0.1 - 4.6 inches per month. December is typically the wettest month, when rainfall can reach 4.6 in. July is typically the driest time to visit Portimão when rainfall is around 0.1 in.

Temperature in Portimão by month

Plan your trip to Portimão by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portimão, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Portimão

Get insights into the airlines that provide service to Portimão. 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 Portimão. Reviews last updated mayo 1, 2025.
Read reviews from past customers who have flown Delta, KLM and SWISS from Chicago to Portimão. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Portimão. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Chicago to Portimão one-way?

    The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $456. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Chicago to Portimão for a low price.

  • Can I find deals for flights from Chicago to Portimão that include hotel bookings?

    Yes. In addition to deals on Chicago to Portimão flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Portimão?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Portimão.

  • Can I find deals for business class flights from Chicago to Portimão?

    Yes. Cheapflights offers flight deals from Chicago to Portimão by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Portimão?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Portimão (average of $628). Flying from Chicago to Portimão in June is currently the most expensive (average of $1,324). 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.

See more FAQs

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.

Top 3 airlines flying from Chicago to Portimão

Discover the top 3 airlines that operate flights from Chicago to Portimão. 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$486Average$829FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$680Average$793FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$719Average$1,265FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.