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

Currently, August is the cheapest month in which you can book a flight from Algarve to Chicago (average of $245). Flying from Algarve to Chicago in March is currently the most expensive (average of $321). 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.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago, 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 23.0 F).

What is the cheapest time of day to fly from SAL to CHI?

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

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

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

How can I find direct flights from Algarve to Chicago?

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

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

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

$572+ Flights from Algarve to Chicago

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Cheap flight deals from Algarve to Chicago

Round-trip from	$572 (Booking.com)

From Algarve to Chicago (CHI)

Search Deals

Find flight deals from Algarve to Chicago

Cheapest flights from Algarve to Chicago
Explore the most affordable flight options available from Algarve to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.

Fri 9/196:05 amFAO - ORD

1 stop16h 25mTAP AIR PORTUGAL

Fri 9/266:00 pmORD - FAO

1 stop23h 50mTAP AIR PORTUGAL

Deal found 8/5

$572

Thu 9/411:45 amFAO - ORD

1 stop13h 15mAer Lingus

Mon 9/89:15 pmORD - FAO

1 stop15h 45mAer Lingus

Deal found 8/5

$599

Thu 9/410:15 pmFAO - ORD

2 stops29h 00mMultiple Airlines

Mon 9/87:25 pmORD - FAO

2 stops17h 30mMultiple Airlines

Deal found 8/5

$640

Thu 9/48:30 amFAO - ORD

2 stops19h 26mKLM

Mon 9/84:40 pmORD - FAO

1 stop33h 20mKLM

Deal found 8/5

$666

Thu 9/41:20 pmFAO - ORD

1 stop28h 30mBritish Airways

Mon 9/88:40 pmORD - FAO

1 stop15h 00mBritish Airways

Deal found 8/5

$673

Fri 9/1912:30 pmFAO - ORD

2 stops37h 15mMultiple Airlines

Fri 9/269:15 pmORD - FAO

1 stop14h 35mMultiple Airlines

Deal found 8/5

$679

Best flights from Algarve to Chicago
Discover carefully curated flight deals from Algarve to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2025.

Fri 9/196:05 amFAO - ORD

1 stop16h 25mTAP AIR PORTUGAL

Fri 9/266:00 pmORD - FAO

1 stop23h 50mTAP AIR PORTUGAL

Deal found 8/5

$572

Thu 9/411:45 amFAO - ORD

1 stop13h 15mAer Lingus

Mon 9/89:15 pmORD - FAO

1 stop15h 45mAer Lingus

Deal found 8/5

$599

Thu 9/410:15 pmFAO - ORD

2 stops29h 00mMultiple Airlines

Mon 9/87:25 pmORD - FAO

2 stops17h 30mMultiple Airlines

Deal found 8/5

$640

Thu 9/48:30 amFAO - ORD

2 stops19h 26mKLM

Mon 9/84:40 pmORD - FAO

1 stop33h 20mKLM

Deal found 8/5

$666

Thu 9/41:20 pmFAO - ORD

1 stop28h 30mBritish Airways

Mon 9/88:40 pmORD - FAO

1 stop15h 00mBritish Airways

Deal found 8/5

$673

Fri 9/1912:30 pmFAO - ORD

2 stops37h 15mMultiple Airlines

Fri 9/269:15 pmORD - FAO

1 stop14h 35mMultiple Airlines

Deal found 8/5

$679

Last-minute flights from Algarve to Chicago
Discover last-minute flight deals from Algarve to Chicago. Data last updated August 5, 2025 and is based on user searches.

Thu 9/411:45 amFAO - ORD

1 stop13h 15mAer Lingus

Mon 9/89:15 pmORD - FAO

1 stop15h 45mAer Lingus

Deal found 8/5

$599

Thu 9/410:15 pmFAO - ORD

2 stops29h 00mMultiple Airlines

Mon 9/87:25 pmORD - FAO

2 stops17h 30mMultiple Airlines

Deal found 8/5

$640

Thu 9/48:30 amFAO - ORD

2 stops19h 26mKLM

Mon 9/84:40 pmORD - FAO

1 stop33h 20mKLM

Deal found 8/5

$666

Thu 9/41:20 pmFAO - ORD

1 stop28h 30mBritish Airways

Mon 9/88:40 pmORD - FAO

1 stop15h 00mBritish Airways

Deal found 8/5

$673

Fri 9/196:05 amFAO - ORD

1 stop16h 25mTAP AIR PORTUGAL

Fri 9/266:00 pmORD - FAO

1 stop23h 50mTAP AIR PORTUGAL

Deal found 8/5

$572

Fri 9/1912:30 pmFAO - ORD

2 stops37h 15mMultiple Airlines

Fri 9/269:15 pmORD - FAO

1 stop14h 35mMultiple Airlines

Deal found 8/5

$679

One-way flights from Algarve to Chicago
Search for one-way flight options from Algarve to Chicago. Find affordable one-way fares based on user searches. Data last updated August 5, 2025.

Sat 8/167:10 amFAO - ORD

2 stops17h 05mMultiple Airlines

Deal found 8/5

$683

Sun 8/178:50 pmFAO - ORD

3 stops52h 17mMultiple Airlines

Deal found 8/5

$735

Sun 8/176:05 amFAO - ORD

1 stop16h 10mTAP AIR PORTUGAL

Deal found 8/5

$871

Fly from

Fly to

Route

Depart

Return

Price

FaroChicago

FAO - ORD

FAOORD

Faro

Fri 9/19

6:05 am-4:30 pm

1 stop16h 25m

Chicago O'Hare Intl

Fri 9/26

6:00 pm-11:50 pm

1 stop23h 50m

$572

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 9/4

11:45 am-7:00 pm

1 stop13h 15m

Chicago O'Hare Intl

Mon 9/8

9:15 pm-7:00 pm

1 stop15h 45m

$599

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 9/4

10:15 pm-9:15 pm

2 stops29h 00m

Chicago O'Hare Intl

Mon 9/8

7:25 pm-6:55 pm

2 stops17h 30m

$640

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 9/4

8:30 am-9:56 pm

2 stops19h 26m

Chicago O'Hare Intl

Mon 9/8

4:40 pm-8:00 am

1 stop33h 20m

$666

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 9/4

1:20 pm-11:50 am

1 stop28h 30m

Chicago O'Hare Intl

Mon 9/8

8:40 pm-5:40 pm

1 stop15h 00m

$673

FaroChicago

FAO - ORD

FAOORD

Faro

Fri 9/19

12:30 pm-7:45 pm

2 stops37h 15m

Chicago O'Hare Intl

Fri 9/26

9:15 pm-5:50 pm

1 stop14h 35m

$679

FaroChicago

FAO - ORD

FAOORD

Faro

Sat 8/16

7:10 am-6:15 pm

2 stops17h 05m

$683

FaroChicago

FAO - ORD

FAOORD

Faro

Sun 8/17

8:50 pm-7:07 pm

3 stops52h 17m

$735

FaroChicago

FAO - ORD

FAOORD

Faro

Sun 8/17

6:05 am-4:15 pm

1 stop16h 10m

$871

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Best time to book a flight from Algarve to Chicago

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown KLM, United Airlines, and Aer Lingus from Algarve to Chicago. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,381 reviews

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

United Airlines

7.4

Good

8,916 reviews

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,197 reviews

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

TAP AIR PORTUGAL

7.1

Good

1,942 reviews

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.7

Okay

7,237 reviews

KLM

7.8

Good

1,381 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Can I find deals for flights from Algarve to Chicago that include hotel bookings?
Yes. In addition to deals on Algarve to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Algarve to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Algarve to Chicago.
Can I find deals for business class flights from Algarve to Chicago?
Yes. Cheapflights offers flight deals from Algarve to Chicago 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 Algarve to Chicago?
Currently, August is the cheapest month in which you can book a flight from Algarve to Chicago (average of $245). Flying from Algarve to Chicago in March is currently the most expensive (average of $321). 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

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$572+ Cheap flights from Algarve to Chicago (CHI)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Algarve to Chicago with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Algarve to Chicago

Keep the following information in mind while searching for Algarve to Chicago flight deals. Data was last updated August 5, 2025.

Round-trip from

Find flight deals from Algarve to Chicago

Cheapest flights from Algarve to ChicagoExplore the most affordable flight options available from Algarve to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.

Explore the most affordable flight options available from Algarve to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Algarve to Chicago that are best for you.

Best time to book a flight from Algarve to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Algarve with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Algarve to Chicago

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown KLM, United Airlines, and Aer Lingus from Algarve to Chicago. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

How can I find direct flights from Algarve to Chicago?

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

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

Traveling to a place near Chicago?

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 Algarve to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

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Book with Flexibility

Travel Smart

Cheapest flights from Algarve to Chicago
Explore the most affordable flight options available from Algarve to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.