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Cheap flights from Portugal to Chicago from $415

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 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
British Airways Logo
7:20 am - 3:55 pm
LIS
-
ORD
14h 35m
1 stop
British Airways Logo
7:05 pm - 5:45 pm
ORD
-
LIS
16h 40m
1 stop
$653British Airways
Fri, May 29 - Sun, May 31
Multiple Airlines Logo
6:35 am - 2:25 pm
LIS
-
ORD
13h 50m
1 stop
Multiple Airlines Logo
6:30 pm - 10:05 pm
ORD
-
LIS
21h 35m
2 stops
$698Multiple Airlines
Fri, Oct 16 - Mon, Nov 2
Multiple Airlines Logo
6:35 am - 2:25 pm
LIS
-
ORD
13h 50m
1 stop
Multiple Airlines Logo
6:30 pm - 9:05 pm
ORD
-
LIS
20h 35m
2 stops
$703Multiple Airlines
Fri, Oct 16 - Sun, Nov 1
Multiple Airlines Logo
6:35 am - 2:25 pm
LIS
-
ORD
13h 50m
1 stop
Multiple Airlines Logo
6:30 pm - 7:50 pm
ORD
-
LIS
19h 20m
2 stops
$708Multiple Airlines
Fri, Oct 16 - Tue, Nov 3
United Airlines Logo
11:25 am - 11:10 am
LIS
-
ORD
29h 45m
1 stop
United Airlines Logo
4:25 pm - 10:15 am
ORD
-
LIS
12h 50m
1 stop
$732United Airlines
Sat, Oct 24 - Sun, Oct 25
Scandinavian Airlines Logo
4:25 pm - 4:10 pm
LIS
-
ORD
29h 45m
1 stop
Scandinavian Airlines Logo
8:15 pm - 4:05 pm
ORD
-
LIS
14h 50m
1 stop
$755Scandinavian Airlines
Wed, Oct 14 - Fri, Oct 30
Turkish Airlines Logo
10:40 am - 9:40 am
OPO
-
ORD
29h 00m
1 stop
Turkish Airlines Logo
8:10 pm - 3:45 pm
ORD
-
OPO
37h 35m
1 stop
$857Turkish Airlines
Tue, Jun 9 - Wed, Jul 15
Turkish Airlines Logo
4:40 pm - 6:15 pm
OPO
-
ORD
31h 35m
1 stop
Turkish Airlines Logo
8:10 pm - 3:50 pm
ORD
-
OPO
37h 40m
1 stop
$862Turkish Airlines
Thu, Oct 8 - Sun, Oct 11
Scandinavian Airlines Logo
6:45 pm - 4:10 pm
FAO
-
ORD
27h 25m
1 stop
Scandinavian Airlines Logo
7:15 pm - 5:55 pm
ORD
-
FAO
16h 40m
1 stop
$904Scandinavian Airlines
Sat, Jun 6 - Fri, Jun 12
United Airlines Logo
3:25 pm - 12:55 pm
FAO
-
ORD
27h 30m
1 stop
United Airlines Logo
12:45 pm - 9:10 am
ORD
-
FAO
14h 25m
2 stops
$928United Airlines
Thu, May 21 - Mon, May 25

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Scandinavian Airlines flights from Portugal to Chicago O'Hare Intl Airport

Our best Scandinavian Airlines deals on Portugal to Chicago O'Hare Intl Airport flight tickets
Scandinavian Airlines
Oct 14
LIS4:25 pmLisbon Humberto Delgado
29h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 30
ORD8:15 pmChicago O'Hare Intl
14h 50m
1 stop
LIS4:05 pmLisbon Humberto Delgado
$755
Scandinavian Airlines
Oct 14
LIS4:25 pmLisbon Humberto Delgado
29h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Nov 3
ORD7:15 pmChicago O'Hare Intl
14h 50m
1 stop
LIS4:05 pmLisbon Humberto Delgado
$778
Scandinavian Airlines
Oct 14
LIS4:25 pmLisbon Humberto Delgado
29h 45m
1 stop
ORD4:10 pmChicago O'Hare Intl
Oct 29
ORD8:15 pmChicago O'Hare Intl
14h 50m
1 stop
LIS4:05 pmLisbon Humberto Delgado
$792

Delta flights from Portugal to Chicago O'Hare Intl Airport

Our best Delta deals on Portugal to Chicago O'Hare Intl Airport flight tickets
Delta
May 10
LIS12:45 pmLisbon Humberto Delgado
15h 50m
1 stop
ORD10:35 pmChicago O'Hare Intl
May 24
ORD4:30 pmChicago O'Hare Intl
12h 15m
1 stop
LIS10:45 amLisbon Humberto Delgado
$829
Delta
May 7
LIS12:45 pmLisbon Humberto Delgado
15h 50m
1 stop
ORD10:35 pmChicago O'Hare Intl
May 23
ORD4:30 pmChicago O'Hare Intl
12h 15m
1 stop
LIS10:45 amLisbon Humberto Delgado
$859
Delta
May 21
OPO5:00 amPorto
15h 15m
1 stop
ORD2:15 pmChicago O'Hare Intl
Jun 5
ORD5:19 pmChicago O'Hare Intl
16h 06m
2 stops
OPO3:25 pmPorto
$911

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Chicago O'Hare Intl Airport 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 May 7, 2026.
Use the filters below to find and compare flights from Portugal to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 5/29

7:20 am-3:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 5/31

7:05 pm-5:45 pm

1 stop16h 40m

$653

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 10/16

6:35 am-2:25 pm

1 stop13h 50m

Chicago O'Hare Intl

Mon 11/2

6:30 pm-10:05 pm

2 stops21h 35m

$698

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 10/16

6:35 am-2:25 pm

1 stop13h 50m

Chicago O'Hare Intl

Sun 11/1

6:30 pm-9:05 pm

2 stops20h 35m

$703

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Fri 10/16

6:35 am-2:25 pm

1 stop13h 50m

Chicago O'Hare Intl

Tue 11/3

6:30 pm-7:50 pm

2 stops19h 20m

$708

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Sat 10/24

11:25 am-11:10 am

1 stop29h 45m

Chicago O'Hare Intl

Sun 10/25

4:25 pm-10:15 am

1 stop12h 50m

$732

LisbonChicago

LIS - ORD

LISORD

Lisbon Humberto Delgado

Wed 10/14

4:25 pm-4:10 pm

1 stop29h 45m

Chicago O'Hare Intl

Fri 10/30

8:15 pm-4:05 pm

1 stop14h 50m

$755

PortoChicago

OPO - ORD

OPOORD

Porto

Tue 6/9

10:40 am-9:40 am

1 stop29h 00m

Chicago O'Hare Intl

Wed 7/15

8:10 pm-3:45 pm

1 stop37h 35m

$857

PortoChicago

OPO - ORD

OPOORD

Porto

Thu 10/8

4:40 pm-6:15 pm

1 stop31h 35m

Chicago O'Hare Intl

Sun 10/11

8:10 pm-3:50 pm

1 stop37h 40m

$862

FaroChicago

FAO - ORD

FAOORD

Faro

Sat 6/6

6:45 pm-4:10 pm

1 stop27h 25m

Chicago O'Hare Intl

Fri 6/12

7:15 pm-5:55 pm

1 stop16h 40m

$904

FaroChicago

FAO - ORD

FAOORD

Faro

Thu 5/21

3:25 pm-12:55 pm

1 stop27h 30m

Chicago O'Hare Intl

Mon 5/25

12:45 pm-9:10 am

2 stops14h 25m

$928

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 O'Hare Intl Airport

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 O'Hare Intl Airport?

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Portugal averaging around $497.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport 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. On the other hand, Friday is the most expensive day to depart from Portugal because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,205.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Portugal at noon is the least expensive time of day to depart. momondo users have found prices as low as $886 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around $1,056. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portugal to Chicago O'Hare Intl flight route?

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

Cheap Portugal to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Chicago O'Hare Intl Airport

Fastest flight time

9h 20m

Direct flights

Mon, Thu, Fri, Sat and Sun
The fastest flight from Portugal to Chicago O'Hare Intl Airport takes 9h 20m
Direct flights go from Portugal to Chicago O'Hare Intl Airport on Monday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from Portugal to Chicago O'Hare Intl Airport

  • When did momondo last update prices for flights from Portugal to Chicago O'Hare Intl Airport?

    Prices for flights from Portugal to Chicago O'Hare Intl Airport are updated daily.

  • How many operators does momondo search for flights from Portugal to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Portugal to Chicago O'Hare Intl Airport?

    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 O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portugal to Chicago O'Hare Intl Airport?

Best airlines flying from Portugal to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Portugal to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $665Free CancellationRating
7.2
2,242 reviews
Search TAP AIR PORTUGAL flights

Traveling to a place near Chicago?

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Racine
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Elgin
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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portugal to Chicago for 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?

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Portugal and alert you when they change.

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