HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Algarve

$324+ Cheap flights from Illinois to Algarve

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FAO
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Algarve 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 Illinois to Algarve

Keep the following information in mind while searching for Illinois to Algarve flight deals. Data was last updated November 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$491
(oojo)

One-way from

$324
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$753
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 Illinois to Algarve
Search Deals
One-way flight from Illinois to Algarve
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Illinois to Algarve

Cheapest flights from Illinois to Algarve
Explore the most affordable flight options available from Illinois to Algarve. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.

This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:10 pmORD - FAO
1 stop14h 35mTAP AIR PORTUGAL
Wed 11/196:05 amFAO - ORD
1 stop14h 55mTAP AIR PORTUGAL
Deal found 11/4$484
This FlightHub deal was found by Cheapflights users on 11/2. 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 11/127:10 pmORD - FAO
1 stop22h 40mTAP AIR PORTUGAL
Tue 11/184:35 pmFAO - ORD
1 stop28h 25mTAP AIR PORTUGAL
Deal found 11/2$498
This FlightHub deal was found by Cheapflights users on 11/2. 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 11/127:10 pmORD - FAO
1 stop22h 40mTAP AIR PORTUGAL
Thu 11/204:35 pmFAO - ORD
1 stop28h 50mTAP AIR PORTUGAL
Deal found 11/2$505
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/148:15 pmORD - FAO
1 stop13h 30mTAP AIR PORTUGAL
Wed 11/196:05 amFAO - ORD
1 stop14h 55mTAP AIR PORTUGAL
Deal found 11/2$528
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:06 pmORD - FAO
2 stops19h 39mBritish Airways
Tue 11/187:00 pmFAO - ORD
1 stop24h 50mBritish Airways
Deal found 11/2$610
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Thu 11/137:20 pmORD - FAO
2 stops33h 50mScandinavian Airlines
Tue 11/1810:50 amFAO - ORD
1 stop35h 55mScandinavian Airlines
Deal found 11/2$616
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:06 pmORD - FAO
2 stops19h 39mBritish Airways
Thu 11/207:40 pmFAO - ORD
1 stop24h 10mBritish Airways
Deal found 11/2$634
This British Airways deal was found by Cheapflights users on 11/2. 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.
Thu 11/139:45 pmORD - FAO
1 stop29h 30mBritish Airways
Fri 11/219:50 amFAO - ORD
1 stop14h 55mBritish Airways
Deal found 11/2$640
This Ovago deal was found by Cheapflights users on 11/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 pmORD - FAO
1 stop17h 15mBritish Airways
Wed 11/196:40 pmFAO - ORD
1 stop30h 05mBritish Airways
Deal found 11/2$656
This KAYAK deal was found by Cheapflights users on 11/2. 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.
Fri 11/147:10 amORD - FAO
2 stops27h 10mScandinavian Airlines
Tue 11/1810:50 amFAO - ORD
1 stop35h 55mScandinavian Airlines
Deal found 11/2$659
This British Airways deal was found by Cheapflights users on 11/2. 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.
Thu 11/135:10 pmORD - FAO
1 stop34h 05mBritish Airways
Thu 11/207:40 pmFAO - ORD
1 stop24h 10mBritish Airways
Deal found 11/2$664
This KAYAK deal was found by Cheapflights users on 11/2. 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 11/107:20 pmORD - FAO
2 stops32h 25mScandinavian Airlines
Tue 11/1810:50 amFAO - ORD
1 stop35h 55mScandinavian Airlines
Deal found 11/2$666

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Algarve 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 4, 2025.
Use the filters below to find and compare flights from Illinois to Algarve that are best for you.

Fly from

Illinois

Fly to

Algarve

Route

Depart

Return

Price

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Wed 1/14

7:10 pm-3:45 pm

1 stop14h 35m

Faro

Thu 3/12

4:35 pm-4:25 pm

1 stop28h 50m

$491

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Wed 1/14

5:10 pm-5:30 pm

2 stops18h 20m

Faro

Thu 3/12

7:40 pm-6:00 pm

1 stop27h 20m

$651

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Fri 11/14

7:10 am-4:20 pm

2 stops27h 10m

Faro

Tue 11/18

10:50 am-4:45 pm

1 stop35h 55m

$659

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Sat 11/15

5:10 pm-6:15 pm

1 stop19h 05m

Faro

Sat 11/22

2:50 pm-1:50 pm

1 stop29h 00m

$664

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Sat 11/15

6:33 pm-10:00 am

2 stops57h 27m

Faro

Sat 11/22

5:10 pm-4:45 pm

1 stop29h 35m

$686

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Sat 11/15

5:10 pm-6:15 pm

1 stop19h 05m

Faro

Fri 11/21

5:45 pm-6:45 pm

1 stop31h 00m

$690

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Fri 11/14

8:15 pm-3:45 pm

1 stop13h 30m

Faro

Fri 11/21

6:05 am-3:25 pm

1 stop15h 20m

$704

ChicagoFaro

MDW - FAO

MDWFAO

Chicago Midway

Mon 12/1

5:34 pm-6:55 pm

2 stops19h 21m

Faro

Mon 12/8

7:15 pm-4:34 pm

2 stops27h 19m

$768

ChicagoFaro

MDW - FAO

MDWFAO

Chicago Midway

Wed 12/3

1:14 pm-6:15 pm

2 stops23h 01m

Faro

Sun 12/7

6:50 pm-11:47 pm

2 stops34h 57m

$870

ChicagoFaro

MDW - FAO

MDWFAO

Chicago Midway

Mon 12/15

5:29 pm-6:55 pm

2 stops19h 26m

Faro

Mon 1/5

7:15 pm-4:31 pm

2 stops27h 16m

$2,361

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 11 results
1
2

Best time to book a flight from Illinois to Algarve

Have a flexible travel schedule? Discover the best time to fly to Algarve from Illinois 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 Illinois to Algarve

What is the cheapest month to book a flight from Illinois to Algarve?

Currently, December is the cheapest month in which you can book a flight from Illinois to Algarve (average of $411). Flying from Illinois to Algarve in July is currently the most expensive (average of $828). 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.

Related info for your journey

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

  • How long is the flight from Illinois to Algarve?

    Airlines like TAP AIR PORTUGAL, American Airlines, and Scandinavian Airlines fly from Illinois to Algarve in about 14h 35m. The time it takes to get you to your destination can typically vary by up to 12h 35m. Illinois and Algarve are separated by a distance of 4114 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Algarve that include hotel bookings?

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

  • How can I find direct flights from Illinois to Algarve?

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

  • Can I find deals for business class flights from Illinois to Algarve?

    Yes. Cheapflights offers flight deals from Illinois to Algarve 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 Illinois to Algarve?

    Currently, December is the cheapest month in which you can book a flight from Illinois to Algarve (average of $411). Flying from Illinois to Algarve in July is currently the most expensive (average of $828). 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.

Alternative routes for Illinois to Algarve

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
LaGuardia to Lisbon flights
Dulles Intl to Lisbon flights
Miami to Lisbon flights
San Francisco to Lisbon flights
Newark to Porto flights
O'Hare Intl to Lisbon flights
Boston to Ponta Delgada flights
Dallas/Fort Worth to Lisbon flights
Los Angeles to Lisbon flights
John F Kennedy Intl to Porto flights
Baltimore to Lisbon flights
Seattle to Lisbon flights
Reagan-National to Lisbon flights
Philadelphia to Lisbon flights
Atlanta to Lisbon flights
LaGuardia to Porto flights
Love Field to Lisbon flights
Orlando to Lisbon flights
Boston to Porto flights
John F Kennedy Intl to Ponta Delgada flights
Denver to Lisbon flights
Fort Lauderdale to Lisbon flights
Minneapolis to Lisbon flights
Hobby to Lisbon flights
Newark to Ponta Delgada flights
Midway to Lisbon flights
John F Kennedy Intl to Funchal flights
Raleigh to Lisbon flights
Detroit to Lisbon flights
Newark to Funchal flights
George Bush Intcntl to Lisbon flights
Dulles Intl to Porto flights
Santa Ana to Lisbon flights
Charlotte to Lisbon flights
Sky Harbor Intl to Lisbon flights
Tampa to Lisbon flights
Portland to Lisbon flights
San Diego to Lisbon flights
Austin to Lisbon flights
Reagan-National to Porto flights
Boston to Funchal flights
O'Hare Intl to Porto flights
Cleveland to Lisbon flights
Indianapolis to Lisbon flights
San Francisco to Porto flights
Baltimore to Porto flights
Atlanta to Porto flights

Top 3 airlines flying from Illinois to Algarve

Discover the top 3 airlines that operate flights from Illinois to Algarve. 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$486Average$702FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$741Average$1,087FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$757Average$828FlexibilityNo cancel feeOn-time69%

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.