Portugal

$214+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
nov. 1 — nov. 81
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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 octubre 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$429
(oojo)

One-way from

$214
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$673

Good round-trip deal

$508 or less

Good one-way deal

$248 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. 16% potential increase in price ($150 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in October 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 octubre 2, 2025.

This oojo deal was found by Cheapflights users on 9/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/298:10 pmORD - OPO
1 stop17h 50mTAP AIR PORTUGAL
vie. 11/79:00 amOPO - ORD
1 stop12h 15mTAP AIR PORTUGAL
Deal found 9/30$427
This oojo deal was found by Cheapflights users on 10/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/319:15 pmORD - OPO
1 stop13h 40mTAP AIR PORTUGAL
vie. 11/79:00 amOPO - ORD
1 stop12h 25mTAP AIR PORTUGAL
Deal found 10/1$429
This FlightHub deal was found by Cheapflights users on 10/2. 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.
mié. 11/57:10 pmORD - OPO
1 stop13h 55mTAP AIR PORTUGAL
jue. 12/46:00 pmOPO - ORD
1 stop27h 25mTAP AIR PORTUGAL
Deal found 10/2$432
This FlightHub deal was found by Cheapflights users on 10/2. 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.
mié. 10/226:00 pmORD - OPO
1 stop10h 55mTAP AIR PORTUGAL
mar. 11/48:00 pmOPO - ORD
1 stop25h 00mTAP AIR PORTUGAL
Deal found 10/2$433
This FlightHub deal was found by Cheapflights users on 9/30. 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.
mié. 10/298:10 pmORD - OPO
1 stop30h 35mTAP AIR PORTUGAL
dom. 11/95:00 amOPO - ORD
1 stop15h 45mTAP AIR PORTUGAL
Deal found 9/30$435
This FlightHub deal was found by Cheapflights users on 10/2. 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.
mié. 11/57:10 pmORD - OPO
1 stop11h 55mTAP AIR PORTUGAL
sáb. 12/64:55 pmOPO - ORD
1 stop27h 50mTAP AIR PORTUGAL
Deal found 10/2$441
This Booking.com deal was found by Cheapflights users on 9/30. 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.
vie. 11/148:15 pmORD - OPO
1 stop14h 45mTAP AIR PORTUGAL
jue. 11/208:00 pmOPO - ORD
1 stop25h 15mTAP AIR PORTUGAL
Deal found 9/30$447
This Kiwi.com deal was found by Cheapflights users on 10/2. 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.
mié. 11/59:50 pmORD - OPO
1 stop19h 50mLufthansa
lun. 11/104:15 pmOPO - ORD
1 stop26h 55mLufthansa
Deal found 10/2$452
This SmartFares deal was found by Cheapflights users on 10/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/28:25 pmORD - OPO
1 stop12h 55mTAP AIR PORTUGAL
dom. 11/96:55 amOPO - ORD
1 stop13h 50mTAP AIR PORTUGAL
Deal found 10/1$453
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
mié. 11/269:50 pmORD - OPO
1 stop19h 50mLufthansa
mar. 12/24:15 pmOPO - ORD
1 stop26h 55mLufthansa
Deal found 10/1$456
This Scandinavian Airlines deal was found by Cheapflights users on 10/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/27:20 pmORD - OPO
1 stop15h 25mScandinavian Airlines
vie. 12/55:35 pmOPO - ORD
1 stop29h 10mScandinavian Airlines
Deal found 10/2$461
This Travelocity deal was found by Cheapflights users on 10/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:20 pmORD - FAO
2 stops32h 25mScandinavian Airlines
mar. 12/910:50 amFAO - ORD
1 stop35h 55mScandinavian Airlines
Deal found 10/1$477

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 octubre 2, 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

vie. 10/31

9:15 pm-3:55 pm

1 stop13h 40m

Porto

vie. 11/7

9:00 am-3:25 pm

1 stop12h 25m

$429

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 11/4

3:07 pm-9:30 am

1 stop12h 23m

Porto

vie. 12/5

12:30 pm-8:05 pm

1 stop13h 35m

$474

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

lun. 12/1

7:20 pm-9:45 am

2 stops32h 25m

Faro

mar. 12/9

10:50 am-4:45 pm

1 stop35h 55m

$477

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 11/4

1:00 pm-9:30 am

2 stops14h 30m

Porto

jue. 12/4

6:00 am-1:10 pm

1 stop13h 10m

$479

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 11/26

12:00 pm-9:30 am

1 stop15h 30m

Porto

mar. 12/2

12:05 pm-4:20 pm

1 stop34h 15m

$481

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 10/20

5:10 pm-3:30 pm

1 stop16h 20m

Porto

mar. 11/4

11:15 am-2:20 pm

1 stop33h 05m

$482

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mié. 10/29

7:50 pm-6:35 pm

1 stop17h 45m

Porto

vie. 11/7

6:00 am-1:10 pm

1 stop13h 10m

$482

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

lun. 11/3

10:00 am-9:30 am

2 stops17h 30m

Porto

mié. 12/3

6:00 am-1:10 pm

1 stop13h 10m

$484

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 11/25

6:50 pm-11:15 am

1 stop34h 25m

Porto

mar. 12/2

12:05 pm-4:20 pm

1 stop34h 15m

$486

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

mar. 10/21

1:08 pm-3:30 pm

2 stops20h 22m

Porto

mar. 11/4

11:15 am-2:20 pm

1 stop33h 05m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 60 results
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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 $1,126). 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 octubre 2, 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 31% 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. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 2, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from Chicago O'Hare Intl Airport 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.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Crew

8.1

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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.
  • How long is the flight from Chicago O'Hare Intl Airport to Portugal?

    Departing from Chicago O'Hare Intl Airport to Portugal will take you 12h 23m. There are 3931 mi between Chicago O'Hare Intl Airport and Portugal. This flight may include one or multiple stops.

  • 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 $1,369, our data indicates the cheapest price to be $180. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $399.

  • 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 $1,126). 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 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 octubre 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$369Average$472FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$444Average$572FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$464Average$828FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$470Average$662FlexibilityNo cancel feeOn-time77%
IberiaCheapest$483Average$753FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$486Average$888FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$490Average$733FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$504Average$818FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$510Average$738FlexibilityNo cancel feeOn-time71%
SWISSCheapest$517Average$748FlexibilityNo cancel feeOn-time79%

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