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$371+ Cheap flights from Portugal to Illinois

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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ORD
dic. 24 — dic. 311
mar. 12/24
mar. 12/31
1 adult, Economy
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Cheap flight deals from Portugal to Illinois

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

Round-trip from

$508
(Mytrip)

One-way from

$371
(Mytrip)
From Portugal to Illinois
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One-way flight from Portugal to Illinois
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Find flight deals from Portugal to Illinois

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

This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/266:30 amLIS - ORD
1 stop14h 00mIberia
dom. 1/124:45 pmORD - LIS
2 stops14h 30mIberia
Deal found 12/18$699
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/276:30 amLIS - ORD
1 stop14h 00mMultiple Airlines
sáb. 1/185:00 pmORD - LIS
1 stop13h 10mMultiple Airlines
Deal found 12/18$706
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/285:00 amLIS - ORD
1 stop15h 30mDelta
mar. 1/1410:30 amORD - LIS
2 stops18h 50mDelta
Deal found 12/18$711
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/268:55 amLIS - ORD
1 stop12h 13mBritish Airways
mié. 1/155:00 pmORD - LIS
1 stop13h 10mBritish Airways
Deal found 12/18$713
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/295:30 amLIS - ORD
1 stop15h 35mAir France
mar. 1/145:20 pmORD - LIS
1 stop12h 00mAir France
Deal found 12/18$717
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2610:55 amLIS - ORD
1 stop15h 00mUnited Airlines
sáb. 1/49:25 pmORD - LIS
1 stop20h 05mUnited Airlines
Deal found 12/19$723
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.
jue. 12/2610:55 amLIS - ORD
1 stop15h 00mAir Canada
lun. 1/133:35 pmORD - LIS
2 stops15h 45mAir Canada
Deal found 12/18$725
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.
jue. 12/268:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
mié. 1/810:00 pmORD - OPO
2 stops16h 00mAmerican Airlines
Deal found 12/18$726
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.
lun. 12/305:00 amLIS - ORD
1 stop15h 30mKLM
mié. 1/154:25 pmORD - LIS
1 stop20h 05mKLM
Deal found 12/18$733
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/268:20 amOPO - ORD
1 stop12h 10mBritish Airways
mié. 1/86:35 pmORD - OPO
1 stop15h 30mBritish Airways
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.
jue. 12/268:55 amLIS - ORD
2 stops14h 53mAmerican Airlines
mié. 1/156:35 pmORD - LIS
1 stop14h 20mAmerican Airlines
Deal found 12/18$743
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/285:00 amLIS - STL
2 stops17h 59mMultiple Airlines
sáb. 1/115:00 pmSTL - LIS
2 stops16h 10mMultiple Airlines
Deal found 12/18$763

Find flights from Portugal to Illinois within your budget

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

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

mié. 1/15

11:25 am-3:05 pm

2 stops33h 40m

Chicago O'Hare Intl

mié. 1/22

4:25 pm-7:35 pm

2 stops21h 10m

$508

PortoChicago

OPO - ORD

OPOORD

Porto

sáb. 2/1

11:40 am-2:30 pm

2 stops32h 50m

Chicago O'Hare Intl

sáb. 2/8

5:20 pm-5:40 pm

2 stops18h 20m

$592

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

vie. 1/17

6:30 am-2:30 pm

1 stop14h 00m

Chicago O'Hare Intl

vie. 1/31

9:45 pm-10:25 pm

1 stop18h 40m

$596

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

jue. 5/8

11:25 am-7:05 pm

1 stop13h 40m

Chicago O'Hare Intl

mar. 5/20

8:55 pm-9:35 pm

1 stop18h 40m

$602

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 4/11

5:55 pm-4:10 pm

1 stop28h 15m

Chicago O'Hare Intl

lun. 4/21

7:15 pm-11:15 am

1 stop34h 00m

$606

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

vie. 1/17

6:30 am-2:30 pm

1 stop14h 00m

Chicago O'Hare Intl

vie. 1/31

4:22 pm-5:55 pm

2 stops19h 33m

$606

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 5/23

12:20 pm-6:50 pm

1 stop12h 30m

Chicago O'Hare Intl

lun. 5/26

10:55 pm-7:40 pm

1 stop14h 45m

$620

PortoChicago

OPO - ORD

OPOORD

Porto

vie. 1/17

8:20 am-10:50 am

2 stops32h 30m

Chicago O'Hare Intl

jue. 1/30

12:25 pm-7:40 am

2 stops13h 15m

$627

FaroChicago

FAO - ORD

FAOORD

Faro

jue. 1/16

4:35 pm-3:30 pm

1 stop28h 55m

Chicago O'Hare Intl

mié. 1/22

7:15 pm-11:50 pm

1 stop22h 35m

$654

FaroChicago

FAO - ORD

FAOORD

Faro

jue. 1/16

4:35 pm-9:34 am

2 stops22h 59m

Chicago O'Hare Intl

mié. 1/22

8:00 am-3:45 pm

3 stops25h 45m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 57 results
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Best time to book a flight from Portugal to Illinois

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

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

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

Currently, September is the cheapest month in which you can book a flight from Portugal to Illinois (average of $232). Flying from Portugal to Illinois in June is currently the most expensive (average of $308). 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 PT to IL?

Find hourly flight availability from Portugal to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 19, 2024.

When flying from Portugal to Illinois, 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 Illinois by month

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

In terms of precipitation, rainfall in Illinois 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 Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated diciembre 19, 2024.
To help decide which airline to fly from Portugal to Illinois, see what other customers have to say about Turkish Airlines, Lufthansa and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
668 reviews
Delta
8.0
Very good
8,600 reviews

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Portugal to Illinois. 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 Portugal to Illinois one-way?

    One-way options have recently been found by users for as low as $531 on Aer Lingus. Other airlines that offer cheap prices include Turkish Airlines from $541 and TAP AIR PORTUGAL from $577 one-way.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Portugal to Illinois (average of $232). Flying from Portugal to Illinois in June is currently the most expensive (average of $308). 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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Alternative routes for Portugal to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portugal to Illinois

Discover the top 3 airlines that operate flights from Portugal to Illinois. 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 diciembre 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$474Average$659FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$580Average$961FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$716Average$882FlexibilityNo cancel feeOn-time69%
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