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Portugal

$264+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
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 enero 21, 2025.

Round-trip from

$465
(Mytrip)

One-way from

$294
(Kiwi.com)

Good round-trip deal

$565 or less

Good one-way deal

$441 or less
From Illinois to Portugal
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One-way flight from Illinois to Portugal
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Price to beat on a 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 enero 21, 2025.

This Flightnetwork deal was found by Cheapflights users on 1/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 1/248:20 pmORD - FAO
1 stop21h 30mTAP AIR PORTUGAL
vie. 2/76:05 amFAO - ORD
1 stop15h 25mTAP AIR PORTUGAL
Deal found 1/21$464
This Mytrip deal was found by Cheapflights users on 1/21. 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.
dom. 2/28:25 pmORD - OPO
1 stop16h 35mTAP AIR PORTUGAL
mié. 2/128:55 amOPO - ORD
1 stop12h 35mTAP AIR PORTUGAL
Deal found 1/21$465
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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.
mar. 2/184:45 pmORD - OPO
1 stop17h 15mIberia
mié. 2/268:20 amOPO - ORD
1 stop12h 10mIberia
Deal found 1/20$493
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/57:05 pmORD - OPO
1 stop34h 45mMultiple Airlines
mié. 3/126:00 amOPO - ORD
2 stops18h 37mMultiple Airlines
Deal found 1/20$504
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/210:00 pmORD - OPO
2 stops16h 00mAmerican Airlines
mié. 2/128:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Deal found 1/19$505
This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/38:25 pmORD - LIS
2 stops30h 55mMultiple Airlines
mar. 11/113:25 pmLIS - ORD
1 stop30h 50mMultiple Airlines
Deal found 1/21$506
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/53:35 pmORD - OPO
2 stops15h 15mAir Canada
mié. 3/126:00 amOPO - ORD
2 stops18h 37mAir Canada
Deal found 1/20$506
This Finnair deal was found by Cheapflights users on 1/21. 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.
mié. 3/54:45 pmORD - LIS
1 stop24h 40mFinnair
mié. 3/126:30 amLIS - ORD
1 stop14h 00mFinnair
Deal found 1/21$507
This KLM deal was found by Cheapflights users on 1/21. 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.
mié. 2/511:05 amORD - LIS
2 stops14h 55mKLM
mar. 2/113:25 pmLIS - ORD
1 stop29h 05mKLM
Deal found 1/21$509
This Delta deal was found by Cheapflights users on 1/21. 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.
mar. 3/1810:15 amORD - LIS
1 stop16h 45mDelta
mié. 4/212:45 pmLIS - ORD
1 stop15h 30mDelta
Deal found 1/21$510
This Air France deal was found by Cheapflights users on 1/20. 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.
mar. 2/252:08 pmMDW - LIS
2 stops12h 52mMultiple Airlines
mié. 3/511:15 amLIS - MDW
2 stops17h 05mMultiple Airlines
Deal found 1/20$511
This American Airlines deal was found by Cheapflights users on 1/21. 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.
mar. 2/116:35 pmORD - LIS
1 stop14h 10mAmerican Airlines
mié. 2/1911:15 amLIS - ORD
2 stops16h 25mAmerican Airlines
Deal found 1/21$512

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 enero 21, 2025.

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Fly to

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Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 2/2

8:25 pm-7:00 pm

1 stop16h 35m

Porto

mié. 2/12

8:55 am-3:30 pm

1 stop12h 35m

$465

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

vie. 2/21

8:20 pm-11:50 pm

1 stop21h 30m

Faro

mar. 3/4

11:15 am-3:30 pm

1 stop34h 15m

$486

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 2/18

4:45 pm-4:00 pm

1 stop17h 15m

Porto

mié. 2/26

8:20 am-2:30 pm

1 stop12h 10m

$493

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 3/5

7:05 pm-11:50 am

1 stop34h 45m

Porto

mié. 3/12

6:00 am-7:37 pm

2 stops18h 37m

$504

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

dom. 2/2

10:00 pm-8:00 pm

2 stops16h 00m

Porto

mié. 2/12

8:20 am-2:30 pm

1 stop12h 10m

$505

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 3/5

3:35 pm-12:50 pm

2 stops15h 15m

Porto

mié. 3/12

6:00 am-7:37 pm

2 stops18h 37m

$506

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

mar. 3/4

5:00 pm-2:45 pm

1 stop15h 45m

Lisbon Humberto Delgado

lun. 3/10

6:45 pm-3:30 pm

1 stop25h 45m

$507

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

mié. 2/5

11:05 am-8:00 am

2 stops14h 55m

Lisbon Humberto Delgado

jue. 2/13

3:25 pm-2:30 pm

1 stop29h 05m

$509

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

dom. 2/2

12:35 pm-8:00 am

1 stop13h 25m

Lisbon Humberto Delgado

vie. 2/14

10:00 am-6:41 pm

1 stop14h 41m

$510

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

mié. 2/26

10:05 am-6:35 am

2 stops14h 30m

Lisbon Humberto Delgado

mar. 3/4

10:00 am-5:47 pm

1 stop13h 47m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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 $1,247). 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 enero 21, 2025.

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 enero 21, 2025.
See what other customers who have flown with Delta, SWISS and Lufthansa 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
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

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
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

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
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

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 Icelandair. According to our data, you can fly for as low as $321. Users have also found prices from $354 and $358 on Porter Airlines and Air Transat, 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 $1,247). 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$415Average$879FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$463Average$754FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$468Average$774FlexibilityNo cancel feeOn-time71%
IberiaCheapest$480Average$712FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$490Average$702FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$506Average$821FlexibilityNo cancel feeOn-time70%
DeltaCheapest$518Average$784FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$524Average$1,028FlexibilityNo cancel feeOn-time69%
KLMCheapest$527Average$769FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$534Average$799FlexibilityNo cancel feeOn-time76%
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