Portugal

$304+ Cheap flights from O'Hare Intl (ORD) 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
Mar 26 — Apr 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Portugal 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 O'Hare Intl to Portugal

Keep the following information in mind while searching for O'Hare Intl to Portugal flight deals. Data was last updated March 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$533
(Iberia)

One-way from

$304
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$705

Good round-trip deal

$651 or less

Good one-way deal

$379 or less
Provider with most accurate pricing for Chicago (CHI)-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Lisbon Humberto Delgado flights.
From Chicago O'Hare Intl to Portugal
One-way flight from Chicago O'Hare Intl to Portugal
Highest demand for flights based on searches. 21% potential increase in price ($213 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Chicago O'Hare Intl to Portugal.
Price to beat on a one-way flight from Chicago O'Hare Intl to Portugal.

Find flight deals from O'Hare Intl to Portugal

Cheapest flights from O'Hare Intl to Portugal
Explore the most affordable flight options available from O'Hare Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

This SWISS deal was found by Cheapflights users on 3/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:05 pmORD - OPO
1 stop17h 35mSWISS
Mon 12/17:30 pmOPO - ORD
1 stop26h 45mSWISS
Deal found 3/20$524
This Iberia deal was found by Cheapflights users on 3/20. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/54:30 pmORD - OPO
1 stop17h 25mIberia
Mon 5/128:15 amOPO - ORD
1 stop12h 00mIberia
Deal found 3/20$533
This United deal was found by Cheapflights users on 3/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:13 pmORD - LIS
1 stop31h 02mUnited Airlines
Tue 11/1811:00 amLIS - ORD
3 stops18h 42mUnited Airlines
Deal found 3/20$543
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/18:50 pmORD - LIS
1 stop18h 45mAer Lingus
Tue 4/810:15 pmLIS - ORD
1 stop21h 45mAer Lingus
Deal found 3/20$544
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/12:20 pmORD - LIS
1 stop14h 55mSWISS
Mon 4/73:35 pmLIS - ORD
1 stop26h 35mSWISS
Deal found 3/20$545
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/49:40 pmORD - OPO
1 stop19h 40mMultiple Airlines
Tue 4/88:40 amOPO - ORD
1 stop13h 15mMultiple Airlines
Deal found 3/19$545
This Lufthansa deal was found by Cheapflights users on 3/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:40 pmORD - OPO
1 stop19h 40mLufthansa
Tue 11/1112:30 pmOPO - ORD
1 stop13h 35mLufthansa
Deal found 3/21$547
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/34:30 pmORD - OPO
1 stop17h 25mAmerican Airlines
Wed 4/168:15 amOPO - ORD
1 stop12h 00mAmerican Airlines
Deal found 3/20$551
This United Airlines deal was found by Cheapflights users on 3/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:20 amORD - OPO
2 stops18h 20mUnited Airlines
Mon 12/16:00 amOPO - ORD
2 stops38h 45mUnited Airlines
Deal found 3/21$554
This Delta deal was found by Cheapflights users on 3/19. 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.
Wed 4/210:35 amORD - LIS
2 stops16h 15mDelta
Wed 4/95:00 amLIS - ORD
1 stop15h 40mDelta
Deal found 3/19$555
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
Sun 10/56:00 pmORD - LIS
Nonstop8h 00mTAP AIR PORTUGAL
Wed 10/1512:55 pmLIS - ORD
Nonstop9h 15mTAP AIR PORTUGAL
Deal found 3/20$562
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/711:45 amORD - OPO
2 stops24h 55mBritish Airways
Wed 5/148:15 amOPO - ORD
2 stops17h 21mBritish Airways
Deal found 3/20$565

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl 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 March 21, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portugal that are best for you.

Fly from

O'Hare Intl

Fly to

Portugal

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 5/5

4:30 pm-3:55 pm

1 stop17h 25m

Porto

Mon 5/12

8:15 am-2:15 pm

1 stop12h 00m

$533

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 4/1

8:50 pm-9:35 pm

1 stop18h 45m

Lisbon Humberto Delgado

Tue 4/8

10:15 pm-2:00 pm

1 stop21h 45m

$544

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 4/1

2:20 pm-11:15 am

1 stop14h 55m

Lisbon Humberto Delgado

Mon 4/7

3:35 pm-12:10 pm

1 stop26h 35m

$545

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 4/4

9:40 pm-11:20 pm

1 stop19h 40m

Porto

Tue 4/8

8:40 am-3:55 pm

1 stop13h 15m

$545

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Tue 4/1

9:40 pm-9:50 pm

1 stop18h 10m

Lisbon Humberto Delgado

Wed 4/9

11:25 am-8:00 pm

1 stop14h 35m

$549

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 4/3

4:30 pm-3:55 pm

1 stop17h 25m

Porto

Wed 4/16

8:15 am-2:15 pm

1 stop12h 00m

$551

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 4/2

10:35 am-8:50 am

2 stops16h 15m

Lisbon Humberto Delgado

Wed 4/9

5:00 am-2:40 pm

1 stop15h 40m

$555

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 5/7

11:45 am-6:40 pm

2 stops24h 55m

Porto

Wed 5/14

8:15 am-7:36 pm

2 stops17h 21m

$565

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 4/3

6:00 am-8:25 am

2 stops20h 25m

Porto

Thu 4/17

6:30 am-2:10 pm

1 stop13h 40m

$569

ChicagoLisbon

ORD - LIS

ORDLIS

Chicago O'Hare Intl

Wed 5/7

10:15 pm-9:20 pm

1 stop17h 05m

Lisbon Humberto Delgado

Thu 5/15

10:20 pm-9:15 pm

1 stop28h 55m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from O'Hare Intl to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from O'Hare Intl 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 Chicago O'Hare Intl Airport to Portugal

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Portugal?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $612). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $1,219). 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 ORD to PT?

Find hourly flight availability from O'Hare Intl 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 March 21, 2025.

When flying from Chicago O'Hare Intl Airport to Portugal, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 33% versus a flight in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Portugal?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Portugal flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 March 21, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Chicago to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 O'Hare Intl 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 Chicago O'Hare Intl Airport to Portugal one-way?

    $366 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Scandinavian Airlines and Icelandair, with prices starting from $393 and $434, respectively.

  • What are the most popular routes from Chicago O'Hare Intl Airport to Portugal?

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Portugal?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Portugal? While on average our users pay $2,248, our data indicates the cheapest price to be $260. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $512.

  • Can I find deals for flights from O'Hare Intl to Portugal that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Portugal?

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

  • Can I find deals for business class flights from O'Hare Intl to Portugal?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $612). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $1,219). 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 O'Hare Intl to Portugal

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

Top 10 airlines flying from O'Hare Intl to Portugal

Discover the top 10 airlines that operate flights from O'Hare Intl 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 March 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$421Average$902FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$445Average$617FlexibilityNo cancel feeOn-time76%
FinnairCheapest$463Average$754FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$468Average$776FlexibilityNo cancel feeOn-time71%
IberiaCheapest$472Average$788FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$490Average$702FlexibilityNo cancel feeOn-time72%
DeltaCheapest$514Average$785FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$519Average$926FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$527Average$1,004FlexibilityNo cancel feeOn-time69%
KLMCheapest$527Average$768FlexibilityNo cancel feeOn-time75%
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.