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Cheap flights from Portugal to Chicago from $301

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Chicago departing on 1/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Portugal to Chicago

Recent round-trip flight deals from Portugal to Chicago

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
Scandinavian Airlines Logo
7:20 pm - 4:05 pmORD-LIS
14h 45m1 stop
$457Scandinavian Airlines
Find Deal
Wed, Nov 26 - Thu, Dec 11
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
Scandinavian Airlines Logo
7:20 pm - 4:05 pmORD-LIS
14h 45m1 stop
$460Scandinavian Airlines
Find Deal
Sun, Feb 8 - Sat, Feb 14
Scandinavian Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
Scandinavian Airlines Logo
7:20 pm - 4:05 pmORD-LIS
14h 45m1 stop
$504Scandinavian Airlines
Find Deal
Wed, Nov 26 - Thu, Dec 11
Multiple Airlines Logo
4:55 pm - 4:45 pmLIS-ORD
29h 50m1 stop
Multiple Airlines Logo
7:20 pm - 8:55 amORD-LIS
31h 35m1 stop
$521Multiple Airlines
Find Deal
Wed, Jan 21 - Fri, Feb 6
Multiple Airlines Logo
6:40 am - 5:20 pmLIS-ORD
16h 40m2 stops
Multiple Airlines Logo
6:30 pm - 4:45 pmORD-LIS
16h 15m2 stops
$547Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
TAP AIR PORTUGAL Logo
6:05 am - 3:25 pmFAO-ORD
15h 20m1 stop
TAP AIR PORTUGAL Logo
8:15 pm - 3:45 pmORD-FAO
13h 30m1 stop
$555TAP AIR PORTUGAL
Find Deal
Fri, Nov 21 - Fri, Nov 28
TAP AIR PORTUGAL Logo
9:00 am - 3:25 pmOPO-ORD
12h 25m1 stop
TAP AIR PORTUGAL Logo
8:25 pm - 6:05 pmORD-OPO
15h 40m1 stop
$556TAP AIR PORTUGAL
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Fri, Nov 21 - Sun, Dec 7
Aer Lingus Logo
10:50 am - 5:55 pmLIS-ORD
13h 05m1 stop
Aer Lingus Logo
3:50 pm - 10:10 amORD-LIS
12h 20m1 stop
$565Aer Lingus
Find Deal
Thu, Nov 20 - Wed, Dec 3
Aer Lingus Logo
10:50 am - 5:55 pmLIS-ORD
13h 05m1 stop
Aer Lingus Logo
3:50 pm - 10:10 amORD-LIS
12h 20m1 stop
$619Aer Lingus
Find Deal
Tue, Nov 18 - Wed, Dec 10
American Airlines Logo
8:00 pm - 10:51 amFAO-ORD
44h 51m2 stops
American Airlines Logo
9:40 am - 10:20 amORD-FAO
18h 40m2 stops
$979American Airlines
Find Deal
Wed, Apr 1 - Sun, Apr 5

TAP AIR PORTUGAL flights from Portugal to Chicago

Our best TAP AIR PORTUGAL deals on Portugal to Chicago flight tickets
TAP AIR PORTUGAL
Nov 21
FAO6:05 amFaro
15h 20m
1 stop
ORD3:25 pmChicago O'Hare Intl
Nov 28
ORD8:15 pmChicago O'Hare Intl
13h 30m
1 stop
FAO3:45 pmFaro
$555
Find similar
TAP AIR PORTUGAL
Nov 21
OPO9:00 amPorto
12h 25m
1 stop
ORD3:25 pmChicago O'Hare Intl
Dec 7
ORD8:25 pmChicago O'Hare Intl
15h 40m
1 stop
OPO6:05 pmPorto
$556
Find similar
TAP AIR PORTUGAL
Nov 10
OPO4:10 pmPorto
21h 32m
2 stops
ORD7:42 amChicago O'Hare Intl
Nov 16
ORD8:25 pmChicago O'Hare Intl
12h 55m
1 stop
OPO3:20 pmPorto
$1,127
Find similar

Lufthansa flights from Portugal to Chicago

Our best Lufthansa deals on Portugal to Chicago flight tickets
Lufthansa
Apr 1
OPO6:00 amPorto
14h 50m
1 stop
ORD2:50 pmChicago O'Hare Intl
Apr 5
ORD5:55 pmChicago O'Hare Intl
23h 30m
1 stop
OPO11:25 pmPorto
$767
Find similar
Lufthansa
Apr 1
OPO6:00 amPorto
12h 55m
1 stop
ORD12:55 pmChicago O'Hare Intl
Apr 5
ORD5:55 pmChicago O'Hare Intl
23h 30m
1 stop
OPO11:25 pmPorto
$768
Find similar
Lufthansa
Mar 27
OPO6:00 amPorto
13h 10m
1 stop
ORD2:10 pmChicago O'Hare Intl
Apr 7
ORD9:40 pmChicago O'Hare Intl
19h 45m
1 stop
OPO11:25 pmPorto
$786
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Chicago 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Portugal to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 11/26

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Thu 12/11

7:20 pm-4:05 pm

1 stop14h 45m

$457

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sun 2/8

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Sat 2/14

7:20 pm-4:05 pm

1 stop14h 45m

$460

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 11/26

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Thu 12/11

7:20 pm-4:05 pm

1 stop14h 45m

$504

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 1/21

4:55 pm-4:45 pm

1 stop29h 50m

Chicago O'Hare Intl

Fri 2/6

7:20 pm-8:55 am

1 stop31h 35m

$521

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 12/3

6:40 am-5:20 pm

2 stops16h 40m

Chicago O'Hare Intl

Wed 12/10

6:30 pm-4:45 pm

2 stops16h 15m

$547

FaroChicago

FAO - ORD

FAOORD

Faro

Fri 11/21

6:05 am-3:25 pm

1 stop15h 20m

Chicago O'Hare Intl

Fri 11/28

8:15 pm-3:45 pm

1 stop13h 30m

$555

PortoChicago

OPO - ORD

OPOORD

Porto

Fri 11/21

9:00 am-3:25 pm

1 stop12h 25m

Chicago O'Hare Intl

Sun 12/7

8:25 pm-6:05 pm

1 stop15h 40m

$556

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Thu 11/20

10:50 am-5:55 pm

1 stop13h 05m

Chicago O'Hare Intl

Wed 12/3

3:50 pm-10:10 am

1 stop12h 20m

$565

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Tue 11/18

10:50 am-5:55 pm

1 stop13h 05m

Chicago O'Hare Intl

Wed 12/10

3:50 pm-10:10 am

1 stop12h 20m

$619

FaroChicago

FAO - ORD

FAOORD

Faro

Wed 4/1

8:00 pm-10:51 am

2 stops44h 51m

Chicago O'Hare Intl

Sun 4/5

9:40 am-10:20 am

2 stops18h 40m

$979

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Portugal to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from Portugal, with most prices found around $643. If you’re not able to fly to Chicago in February, then December is your next best option. Flight prices from Portugal to Chicago during December average around $700.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $748. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Chicago for around $1,209.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Portugal to Chicago during this time can be as low as $622. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $1,209.

What is the cheapest Portugal to Chicago flight route?

Fly from Lisbon Humberto Delgado to Chicago O'Hare Intl for the best Portugal - Chicago flight prices

What cabin class options are available on Portugal to Chicago flights?

There are 3 cabin classes available to choose from on Portugal to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portugal to Chicago flights?

You could potentially save up to 10% on your flight if you consider stops on a Portugal to Chicago flight.

Cheap Portugal to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago

Fastest flight time

9h 20m

Direct flights

Mon, Thu and Sat

Airports in Chicago

1 airport
The fastest flight from Portugal to Chicago takes 9h 20m
Direct flights go from Portugal to Chicago on Monday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)
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  • When did momondo last update prices for flights from Portugal to Chicago?

    Prices for flights from Portugal to Chicago were last updated today.

  • How many operators does momondo search for flights from Portugal to Chicago?

  • How old do you have to be to fly from Portugal to Chicago?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Portugal to Chicago?

Best airlines flying from Portugal to Chicago

Compare and see reviews for airlines that fly from Portugal to Chicago with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $579Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $580Free CancellationRating
7.1
2,046 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $650Free CancellationRating
7.9
8,002 reviews
Search Delta flights
KLMPriceFrom $653Free CancellationRating
7.7
1,405 reviews
Search KLM flights
United AirlinesPriceFrom $733Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Crown Point
Munster
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to Chicago?

It is quick and easy to find Portugal to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Portugal to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portugal to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from Portugal to Chicago?

momondo helps you find the best flight between Portugal and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portugal to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Portugal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport