Portugal

$243+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LIS
Aug 1 — Aug 81
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Cheap 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 July 2, 2026.

This oojo deal was found by Cheapflights users on 6/28. 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.
Mon 11/27:15 pm
ORD
-
OPO
1 stop33h 50m
Scandinavian Airlines
Sun 11/85:35 pm
OPO
-
ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 6/28$562
This eDestinos deal was found by Cheapflights users on 6/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:15 pm
ORD
-
OPO
1 stop15h 30m
Scandinavian Airlines
Wed 11/1111:55 am
OPO
-
ORD
1 stop34h 50m
Scandinavian Airlines
Deal found 6/28$566
This eDestinos deal was found by Cheapflights users on 7/1. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:15 pm
ORD
-
OPO
1 stop15h 45m
Scandinavian Airlines
Sat 10/3112:00 pm
OPO
-
ORD
1 stop34h 45m
Scandinavian Airlines
Deal found 7/1$601
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Thu 8/207:15 pm
ORD
-
OPO
1 stop15h 50m
Scandinavian Airlines
Fri 9/45:55 pm
OPO
-
ORD
1 stop28h 15m
Scandinavian Airlines
Deal found 6/29$610
This Scandinavian Airlines deal was found by Cheapflights users on 6/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:15 pm
ORD
-
FNC
2 stops37h 50m
Scandinavian Airlines
Tue 11/103:55 pm
FNC
-
ORD
2 stops30h 50m
Scandinavian Airlines
Deal found 6/30$621
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:25 pm
ORD
-
OPO
3 stops30h 35m
Multiple Airlines
Tue 9/2210:25 pm
OPO
-
ORD
2 stops25h 50m
Multiple Airlines
Deal found 7/1$623
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:40 am
ORD
-
FAO
2 stops30h 50m
Multiple Airlines
Fri 8/2110:00 pm
FAO
-
ORD
2 stops22h 44m
Multiple Airlines
Deal found 6/30$630
This oojo deal was found by Cheapflights users on 6/30. 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.
Sun 9/206:00 pm
ORD
-
OPO
1 stop17h 00m
TAP AIR PORTUGAL
Thu 10/17:00 am
OPO
-
ORD
1 stop11h 40m
TAP AIR PORTUGAL
Deal found 6/30$632
This oojo deal was found by Cheapflights users on 7/1. 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.
Wed 9/236:00 pm
ORD
-
OPO
1 stop15h 00m
TAP AIR PORTUGAL
Wed 10/75:05 am
OPO
-
ORD
1 stop16h 55m
TAP AIR PORTUGAL
Deal found 7/1$634
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:05 am
ORD
-
OPO
3 stops28h 10m
Multiple Airlines
Thu 8/2710:20 pm
OPO
-
ORD
2 stops22h 35m
Multiple Airlines
Deal found 6/30$640
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Thu 8/207:15 pm
ORD
-
OPO
1 stop15h 50m
Scandinavian Airlines
Thu 8/2712:20 pm
OPO
-
ORD
1 stop33h 50m
Scandinavian Airlines
Deal found 6/28$641
This oojo deal was found by Cheapflights users on 7/1. 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.
Tue 10/207:15 pm
ORD
-
OPO
1 stop33h 45m
Scandinavian Airlines
Sun 11/15:35 pm
OPO
-
ORD
1 stop29h 10m
Scandinavian Airlines
Deal found 7/1$646

Find 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 July 2, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$562
(oojo)

One-way from

$243
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,043

Good round-trip deal

$707 or less

Good one-way deal

$577 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. 25% potential increase in price ($277 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in July 2026
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.

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 July 2, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Thu 8/20

7:50 pm-6:35 pm

1 stop16h 45m

Funchal Madeira

Thu 8/27

10:00 pm-4:00 pm

1 stop24h 00m

$767

ChicagoFaro

ORD - FAO

ORDFAO

Chicago O'Hare Intl

Sun 8/16

4:55 pm-11:15 pm

1 stop24h 20m

Faro

Tue 9/1

6:10 pm-5:50 pm

2 stops29h 40m

$773

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Sat 8/22

6:05 pm-6:35 pm

1 stop18h 30m

Funchal Madeira

Fri 8/28

7:35 pm-4:05 pm

1 stop26h 30m

$774

ChicagoPonta Delgada

ORD - PDL

ORDPDL

Chicago O'Hare Intl

Mon 8/17

6:00 am-8:40 am

1 stop21h 40m

Ponta Delgada Nordela

Wed 8/26

9:35 am-9:53 am

1 stop29h 18m

$792

ChicagoPonta Delgada

ORD - PDL

ORDPDL

Chicago O'Hare Intl

Mon 8/17

6:00 am-8:40 am

1 stop21h 40m

Ponta Delgada Nordela

Wed 8/26

9:35 am-7:51 am

2 stops27h 16m

$795

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 9/9

7:25 pm-11:20 pm

2 stops21h 55m

Porto

Sat 9/19

3:30 pm-9:20 pm

3 stops35h 50m

$807

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Sat 9/19

6:05 pm-3:20 pm

1 stop15h 15m

Funchal Madeira

Fri 9/25

7:00 am-4:00 pm

1 stop15h 00m

$816

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Thu 9/24

6:00 pm-11:40 am

1 stop11h 40m

Funchal Madeira

Fri 10/9

9:25 am-4:00 pm

1 stop12h 35m

$843

ChicagoLajes

ORD - TER

ORDTER

Chicago O'Hare Intl

Sun 8/16

6:00 pm-11:15 pm

1 stop24h 15m

Lajes

Sun 8/23

7:10 am-4:00 pm

1 stop13h 50m

$851

ChicagoFunchal

ORD - FNC

ORDFNC

Chicago O'Hare Intl

Sun 8/16

6:00 pm-12:10 am

1 stop24h 10m

Funchal Madeira

Sun 8/23

5:50 am-4:00 pm

1 stop16h 10m

$851

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $369). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $676). 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 July 2, 2026.

When flying from Chicago O'Hare Intl Airport to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from Chicago to Portugal delayed?

About 37% of weekly flights between Chicago and Portugal have experienced delays in the past year, with the average delay time being 130 minutes.

What is the most punctual flight time for Chicago to Portugal flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 36% of flights being delayed.

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Portugal?

The best time to book flights from Chicago O'Hare Intl Airport to Portugal is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 July 2, 2026.
Get a feel of what it's like to fly with United Airlines,Aer Lingus, andTAP AIR PORTUGAL 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.

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

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 16h 45m. There are 3845 mi between Chicago O'Hare Intl Airport and Portugal. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Portugal one-way?

    $210 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on TAP AIR PORTUGAL and Delta, with prices starting from $277 and $283, 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 $1,811, our data indicates the cheapest price to be $389. The most popular route (Chicago O'Hare Intl - Lisbon Humberto Delgado), is priced around $568.

  • 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Portugal (average of $369). Flying from Chicago O'Hare Intl Airport to Portugal in June is currently the most expensive (average of $676). 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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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 July 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$369Average$496FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$371Average$535FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$451Average$835FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$470Average$625FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$474Average$704FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$489Average$1,043FlexibilityNo cancel feeOn-time69%
SWISSCheapest$489Average$719FlexibilityNo cancel feeOn-time79%
KLMCheapest$492Average$639FlexibilityNo cancel feeOn-time75%
DeltaCheapest$494Average$726FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$496Average$761FlexibilityNo cancel feeOn-time77%

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