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$295+ Cheap flights from Illinois 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Illinois to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Portugal (PT0). 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 19, 2024.

Round-trip from

$455
(Flightnetwork)

One-way from

$337
(Kiwi.com)
From Illinois to Portugal
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One-way flight from Illinois to Portugal
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Find flight deals from Illinois to Portugal

Cheapest flights from Illinois to Portugal
Explore the most affordable flight options available from Illinois to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Orbitz deal was found by Cheapflights users on 12/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/304:55 pmORD - LIS
1 stop10h 10mBritish Airways
Fri 1/1012:55 pmLIS - ORD
2 stops27h 52mBritish Airways
Deal found 12/18$554
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Tue 12/3111:35 amORD - LIS
1 stop15h 45mUnited Airlines
Mon 1/136:10 amLIS - ORD
1 stop14h 00mUnited Airlines
Deal found 12/18$569
This Delta deal was found by Cheapflights users on 12/19. 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.
Mon 12/309:30 amMDW - LIS
2 stops19h 05mDelta
Mon 1/135:00 amLIS - MDW
2 stops19h 14mDelta
Deal found 12/19$607
This Icelandair deal was found by Cheapflights users on 12/18. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:30 pmORD - LIS
1 stop19h 50mIcelandair
Mon 1/139:20 pmLIS - ORD
1 stop26h 00mIcelandair
Deal found 12/18$636
This Air Canada deal was found by Cheapflights users on 12/18. 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.
Tue 12/3111:35 amORD - LIS
1 stop15h 45mAir Canada
Sat 1/115:00 amLIS - ORD
2 stops17h 41mAir Canada
Deal found 12/18$638
This KLM deal was found by Cheapflights users on 12/18. 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.
Tue 12/318:00 amORD - LIS
1 stop18h 00mKLM
Fri 1/103:25 pmLIS - ORD
1 stop29h 05mKLM
Deal found 12/18$736
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Tue 12/312:53 pmORD - LIS
1 stop12h 22mAmerican Airlines
Sat 1/1111:00 amLIS - ORD
1 stop13h 45mAmerican Airlines
Deal found 12/18$758
This FlightHub deal was found by Cheapflights users on 12/18. 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.
Sun 12/298:25 pmORD - LIS
2 stops54h 55mMultiple Airlines
Fri 1/1012:15 pmLIS - ORD
1 stop34h 00mMultiple Airlines
Deal found 12/18$844
This Finnair deal was found by Cheapflights users on 12/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/244:45 pmORD - LIS
1 stop24h 40mFinnair
Sat 1/186:30 amLIS - ORD
1 stop14h 00mFinnair
Deal found 12/18$859
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 12/289:50 amORD - OPO
2 stops19h 50mUnited Airlines
Sat 1/1112:30 pmOPO - ORD
1 stop28h 35mUnited Airlines
Deal found 12/17$880
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Tue 12/317:05 pmORD - LIS
1 stop13h 30mSWISS
Wed 1/81:35 pmLIS - ORD
2 stops32h 40mSWISS
Deal found 12/18$943
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Sat 12/288:14 pmORD - OPO
3 stops33h 36mMultiple Airlines
Sat 1/117:05 amOPO - ORD
2 stops18h 32mMultiple Airlines
Deal found 12/17$960

Find flights from Illinois to Portugal within your budget

Customize your flight search to find flights from Illinois 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 December 19, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 1/17

8:20 pm-6:00 pm

1 stop15h 40m

Porto

Fri 1/24

6:55 am-3:30 pm

1 stop14h 35m

$455

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/21

3:35 pm-9:20 am

1 stop11h 45m

Lisbon Humberto Delgado

Tue 1/28

5:00 am-7:37 pm

2 stops20h 37m

$495

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Fri 1/17

8:20 pm-10:10 am

Nonstop7h 50m

Lisbon Humberto Delgado

Fri 1/24

12:00 pm-3:30 pm

Nonstop9h 30m

$498

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Sun 1/19

9:50 am-9:20 am

1 stop17h 30m

Lisbon Humberto Delgado

Wed 1/29

12:15 pm-4:15 pm

1 stop34h 00m

$499

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 1/19

8:25 pm-8:00 am

3 stops29h 35m

Porto

Sun 1/26

6:00 am-3:30 pm

2 stops15h 30m

$508

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/21

10:00 pm-9:45 pm

1 stop17h 45m

Lisbon Humberto Delgado

Wed 1/29

6:30 am-2:30 pm

1 stop14h 00m

$509

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 2/3

4:45 pm-4:00 pm

1 stop17h 15m

Porto

Wed 2/19

8:20 am-2:30 pm

1 stop12h 10m

$511

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 1/28

7:20 am-9:20 am

1 stop20h 00m

Lisbon Humberto Delgado

Tue 2/4

11:00 am-1:10 pm

2 stops32h 10m

$513

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 2/3

11:35 am-11:15 am

2 stops17h 40m

Porto

Wed 2/19

6:00 am-9:01 am

2 stops33h 01m

$536

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 2/18

11:17 am-8:00 am

2 stops14h 43m

Lisbon Humberto Delgado

Thu 2/27

11:25 am-2:30 pm

1 stop33h 05m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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.

Travel insights for flights from Illinois to Portugal

Get recent, data-driven insights about flights from Illinois to Portugal including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Portugal (average of $612). Flying from Illinois to Portugal in June is currently the most expensive (average of $1,180). 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 IL to PT?

Find hourly flight availability from Illinois 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 December 19, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Portugal as you normally would.

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 December 19, 2024.
See what other customers who have flown with Air France, United Airlines and Delta from Illinois to Portugal have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,600 reviews
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

LOT
7.6
Good
1,129 reviews
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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

SWISS
7.6
Good
1,605 reviews
Delta
8.0
Very good
8,600 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 10

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 Illinois to Portugal. 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 Illinois to Portugal one-way?

    For one-way options, check prices for SWISS. According to our data, you can fly for as low as $383. Users have also found prices from $384 and $385 on Air Canada and British Airways, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Portugal (average of $612). Flying from Illinois to Portugal in June is currently the most expensive (average of $1,180). 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.

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Alternative routes for Illinois to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Portugal

Discover the top 10 airlines that operate flights from Illinois 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$423Average$880FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$463Average$748FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$468Average$926FlexibilityNo cancel feeOn-time71%
IberiaCheapest$480Average$677FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$506Average$805FlexibilityNo cancel feeOn-time70%
DeltaCheapest$519Average$795FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$527Average$772FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$527Average$1,040FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$534Average$803FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$552Average$985FlexibilityNo cancel feeOn-timeN/A
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